On December 10th, local time, the southern and central parts of the United States were hit by storms, and tornadoes swept through six states, resulting in more than 100 deaths, flattened houses and a mess all over broken walls. Climate scientists say that people need to be prepared for more frequent and severe weather disasters.

Kentucky after a tornado

The whole house was uprooted and the town was razed to the ground.

According to Washington post, from Friday night to Saturday morning, local time, tornadoes traveled 250 miles in northeastern Arkansas, southeastern Missouri, northwestern Tennessee and western Kentucky, causing damage along the way, tearing everything apart for more than three hours and then throwing it into the sky. Sometimes, the debris of objects was thrown 9 kilometers high.

The worst-hit town was mayfield, Kentucky, where a tornado uprooted the whole house. After the storm, the whole town was razed to the ground.

Andy Bacher, governor of Kentucky, said that according to the latest report, 70 people have been killed in the state.

According to other media reports, this tornado is not a single one or a few, but more than 30 huge tornado disasters. Up to now, the number of deaths caused by this disaster has exceeded 100.

The scale of this tornado can enter the top ten in American history

This tornado disaster has a large scale (more than 30 times), a wide span (sweeping through six states) and many deaths (more than 100 people at present). According to the analysis of climate experts, it can be among the top ten tornadoes recorded in the United States.

According to the records of the National Oceanic and Atmospheric Administration, the 10 deadliest tornadoes in the United States since 1900 are as follows (in descending order of death toll):

1. 695 people died. March 18th, 1925, Missouri, Illinois and Indiana.

2. 216 people died. April 5, 1936, Tupelo, Mississippi.

3. 203 people died. Gainesville, Georgia, April 6, 1936.

4.181 people died. April 9, 1947, Woodward, Oklahoma.

5.158 people died. May 22, 2011, Joplin, Missouri.

6.143 people died. April 24th, 1908, amit, Louisiana and Purves, Mississippi.

7.116 people died. Flint, Michigan, June 8, 1953.

8.114 people died. May 11th, 1953, Waco, Texas.

9.114 people died. May 18th, 1902, Goliath, Texas.

10.103 people died. March 23, 1913, Omaha, Nebraska.

Why do tornadoes frequently occur in the United States?

Why do tornadoes happen so frequently in the United States?

Li Xiaoquan, chief meteorologist of China Weather Network, said: "The United States is bordered by the Atlantic Ocean in the east, the Pacific Ocean in the west and the Gulf of Mexico in the south, and the water vapor conditions are very good. When water vapor condenses, a large amount of latent heat of condensation is released, and cumulonimbus clouds are easy to generate and grow; Canada is the north of the United States, which is the birthplace of cold air. The terrain of the United States is transparent from north to south, lacking the barrier of east-west mountains, and hot and cold air can drive straight in. When cold and warm air meet, it is easy to produce strong convective weather such as thunderstorm, strong wind and tornado. Every spring is the frequent season of tornadoes in the United States, because the cold and warm air are evenly matched at this time, and it is easy to cause tornadoes when colliding. "

The United States is a veritable "Tornado Kingdom", with an average of 1,141 tornadoes recorded from 2000 to 2020, and the trend is increasing slightly every year. Comparatively speaking, during the 30 years from 1991 to 2020, there were only 38 tornadoes per year in China.

From 2008 to 2020, the average number of deaths in the United States due to tornadoes was 87 per year. Since the 1950s, there has been an EF5 tornado in the United States every year on average. Can destroy houses and blow up cars).

On May 3, 1999, Oklahoma and Kansas were swept by 66 tornadoes in one day, and the direct economic loss exceeded $1.2 billion. Historically, the number of tornadoes in the United States is 1884, and the number of tornadoes is 944.

Relatively speaking, the number and scale of tornadoes in winter in the United States are relatively small. Since records began, the deadliest one in December was December 5, 1953, in Vicksburg, Mississippi, which killed 38 people. The scale of this tornado easily broke this record.

Global warming may be the culprit.

After the tornado disaster that ravaged the United States this weekend, scientists from the National Weather Service warned that although the exact connection between climate change and tornadoes is still uncertain, higher temperatures may aggravate such violent disasters as tornadoes.

Victor Kingsney, a professor of meteorology at Northern Illinois University, said: "When people see such a disaster today, they will ask, Is this the new normal? It will take us some time to determine what role climate change plays in such an event. But in a warming world, we can say that it is easier to produce tornadoes. "

However, other climate and weather experts point out that tornadoes are one of the most difficult events associated with global warming, in part because tornadoes are relatively few and have a short duration.

Harold Brooks, a senior research scientist at the Severe Storm Laboratory of the National Oceanic and Atmospheric Administration of the United States, said that in recent decades, tornado activities in the United States have become "more changeable", and the number of days when tornadoes are seen has decreased each year, but the number of tornadoes has increased these days, which means that they have become more concentrated in a short period of time.

Although the relationship between tornadoes and global warming cannot be confirmed for the time being, Professor Kingsney pointed out that the continuous warming of the earth is making a series of extreme weather disasters more serious, including longer bad weather seasons and large-scale natural disasters that are not common in history.

This is consistent with the findings released by the United Nations Panel on Climate Change this summer. The survey found that weather-related disasters are becoming more and more extreme and affecting every part of the world as humans continue to emit gases into the atmosphere that cause global warming.

Although the report does not draw a conclusion on the relationship between tornadoes and climate change, it points out that the frequency and intensity of extreme precipitation in the United States are increasing.

"The population is growing, the cities are getting bigger and bigger, and we are producing more and more things," Kingsney said. "I am sure that with the continuous expansion of our human footprint, there will be more disasters."

Original title: The scale of tornadoes in the United States can enter the top ten in history, sweeping through six States, razing towns and killing over 100 people.

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　　Most of Sichuan, Chongqing, Guizhou, Hunan, Hubei, Jiangxi, southern Anhui, southern Jiangsu, Zhejiang, Guangdong and Guangxi in southern China are mainly subtropical monsoon climate zones, with relatively warm winters, but there have been extremely cold periods in history and even suffered from heavy snow and freezing disasters. The Ming and Qing Dynasties were a cold period in the history of China, and the disaster of heavy snow and freezing in the southern region was very serious.

　　First, since the Ming and Qing Dynasties, heavy snow and freezing disasters in South China

　　The Yunnan-Guizhou Plateau was very cold from the middle of the seventeenth century to the beginning of the eighteenth century. In the ninth year of Shunzhi, the heavy snow in Guizhou lasted for 40 days. In the fifty-first year of Kangxi, Luoping County was frozen with the moon as big as a column. The cold period from the middle of 18th century to the end of 19th century in Sichuan and Chongqing was not only cold, but also lasted for a long time. During the Ganjia period, there was often heavy snow in Sichuan basin in winter, and the phenomenon of excess snow was very common. For example, in the forty-eight years of Qianlong, heavy snow fell in Sichuan Province, with a thickness of two feet in many places. In the fourteenth year of Jiaqing, there were three heavy snows, the temperature was low, the indoor cups and plates were often frozen, and the ice in the water bowl was three inches thick. The low temperature disaster during Guangxu period was even more obvious. For example, in the seventeenth year of Guangxu, the heavy snow in Shifang County condensed into ice strips and ice cubes, which were extremely hard. The oil tanks and vegetables in the house were as cold as glue paint seals, and they could only be opened when they were used by fire. In the winter of the eighteenth year of Guangxu, there was a severe cold in Shuangliu County, and the ice was more than a foot thick. It snowed heavily for several days in Nanchuan county, followed by freezing for more than ten days. In the winter of the 19th year of Guangxu, the river in Wanyuan County was frozen, making it possible to walk on it. According to relevant historical records, such as "the ice is more than a foot thick", "the ice is hard for several days", "the river ice can cross" and "the ice is several feet thick", it can be seen that the climate in Sichuan Basin and surrounding mountainous areas was obviously colder than now.

　　Hubei area is more obviously affected by the cold air in the north due to location factors, and it is prone to freezing disasters. For example, in the ten years of Shunzhi, Hanyang County suffered from severe cold, and the lakes were frozen and could walk. Twenty-nine years of Kangxi, bamboo? The snow in the county is five or six feet deep, and the river is frozen into a beam. In the winter of the 30th year of Kangxi, it was very cold in Fangxian County, the river froze, and many people and animals froze to death. In the winter of Daoguang twenty-one years, the snow in Xianning County was several feet flat and the ice was as hard as stone. In the winter of the eleventh year of Xianfeng, the snow in Daye County was five feet deep, and the lake ice was thick enough for people to pass. The snow in Pu Yin County is five or six feet deep, and lakes and rivers are all frozen. The snow in Xianning County is four or five feet deep, and many pedestrians are frozen to death. In the first month of the fourth year of Tongzhi, there was heavy snow in Yunyang and the Hanshui River froze. In the winter of Guangxu three years, Xiangyang River was frozen, and ice was everywhere. The river ice in Yicheng county is several inches thick, and the ferryman walks on the ice. In thirteen years, the snow accumulated six feet deep, and the Fuhe River Ivylinna Lee was several feet deep, so vessels of all sizes could not travel, and there was an endless stream of horses and chariots on the river.

　　There were mainly two cold periods in the Qing Dynasty in Hunan, the first was from the early Qing Dynasty to the end of Kangxi, and the second was from Jiaqing to Guangxu. For example, in the ninth year of Kangxi, there was heavy snow in Youxian County, and the river was frozen, so people could cross it. There are several feet of snow in winter in Ningxiang county, and the river can cross. It snows heavily in winter in Xiangxiang County, and the river is frozen and frozen. The snow in Hengshan county is several feet deep, and the river is frozen, which is more than feet thick. It snowed heavily for 60 days in Leiyang county, and everyone on the river crossed the ice. In the twenty-ninth year of Kangxi, the snow accumulated in Yuezhou Prefecture for more than ten days, and the lake was frozen, so people could walk across the river. Hengyang county ice, more than 40 days. The heavy snow in Chenzhou, with several feet of ice thickness, was released in February of the following year. In the fifty-second year of Kangxi, there was a big ice and a frozen river in Changsha County. It is feasible to freeze the rivers in Shanhua County. After twenty-five years of Qianlong, the pond was frozen. In the eleventh year of Xianfeng, the snow in Pingjiang was three feet deep, and the river was frozen to cross. In the first year of Tongzhi, the snow in Wugang was more than two feet deep and the ice was three inches thick. The pond was feasible, and it was difficult to understand for more than ten days. In the twenty-second year of Daoguang, there was heavy snow in Shaoyang, and the ground accumulated two or three feet. The ice was firm and feasible. In Guangxu three years, Leiyang was frozen for more than half a month, and pedestrians suffered.

　　There were also two particularly cold periods in Jiangxi in the Qing Dynasty. The first period was the Kanggan period, and the second period was the late years of Xianfeng and the early years of Tongzhi. For example, in the ninth year of Kangxi, there were dozens of days of heavy snow in Hukou County, and Meijiazhou in Pengli Lake was frozen and could pass people; It is snowing heavily in Xingzi County, and the river is frozen. The heavy snow in Linchuan county has accumulated for more than forty days, and the river ice can be crossed. In the eleventh year of Xianfeng, Wuning County was snowed for three days, with a depth of five or six feet, and it began to disappear at the end of the month. The rivers and wine jars were all frozen, and the water tanks were broken, so that residents had no water to draw, and they lived by melting snow for water. De ‘an County has been snowing for several days, and the Wushimen River is frozen very thick, so it can drive. It is snowing heavily in Poyang County, and the river is frozen, which is several feet strong and can be driven. The snow in Wannian County is four or five feet deep. Anyone with water in the appliance is known as water crack, and the ice in the pond is full of feet, which is feasible. In the first year of Tongzhi, the hard ice in Jinxian County was six or seven inches thick, and the Yangtze River could pass through chariots and horses, that is, the turbulence was frozen. In Anyi County, the snow fell in the first month of spring, and the rivers closed, pedestrians and camphor trees withered. The first month of yugan county is freezing, and the river ice is thick enough to cross the chariots and horses. The river in Anren County is full of ice, and people go up from the ice. It will be fine for ten days. It snowed heavily in the first month of spring in Wanzai County, dripping into ice.

　　Jiangsu and Anhui provinces are roughly divided into three cold periods, namely, the period of ShunKang Yong Gan, the early years of Tongzhi in the last years of Xianfeng and the middle period of Guangxu. For example, in the tenth year of Shunzhi, Tongcheng was snowed for more than ten days, and the trees were frozen, and the moon was puzzled. When it was snowing heavily, the ice was several feet thick, and the eaves hung on the ground, and many trees froze to death. In the winter of the eleventh year of Shunzhi, the ice of Dongtai River was more than feet thick, and people walked on the ice. Wujiang is cold in winter, and the ice in Taihu Lake is two feet thick. Songjiang prefecture, Lingdian frozen for several days, walking on the ice. In the ninth year of Kangxi, there was heavy snow in Wangjiang. The city was several feet deep, and the frozen ice in lakes and marshes was about six feet. The Huaihe River froze in Xuyi, and the horses and chariots traveled on the ice, and the solution began in February of the following year. In the winter of the twenty-ninth year of Kangxi, Shucheng and Wuwei were extremely cold, and the river ice was several feet. Wuxian county is cold and snowy, and the river is frozen and cut off. In the twenty-third year of Qianlong, Taihu Lake froze for more than a month. In the eleventh year of Xianfeng, there was heavy snow in winter, and the ice was thick enough to pass people. The snow in Guichi is seven or eight feet deep, and the river turns into ice. There is heavy snow in Wuxian county, and the flat land is four or five feet. The ice in Taihu Lake is half a month. In the eighteenth year of Guangxu, Wusongjiang, Qingpu County, was frozen for ten days. The river port in Jiading County is frozen and pedestrians can walk on the river. In the 19th year of Guangxu, there was heavy snow in Wuxian, and Taihu Lake was frozen to a thickness of feet. Although Lux vertebral chisel could not sail.

　　During this period, the climate in Zhejiang was also very cold, especially in the early Qing Dynasty and the late Qing Dynasty. For example, in the eleventh year of Shunzhi, Cixi County was cold in winter, and the river was icy, and the boat could not pass through the moon. In the fourth year of Kangxi, the winter in Huzhou was very cold, and the ice in Taihu Lake was blocked. In the twenty-second year of Kangxi, Taihu Lake in Huzhou was frozen for more than a month, and people could walk on ice. In the twenty-eighth year of Kangxi, it was snowed in Anxian County, and the river was frozen and the boat was blocked for decades. In the twenty-seventh year of Qianlong, the winter in Jiashan County was very cold, which was unprecedented in more than sixty years. After 60 years of Qianlong, the snow in Wucheng County was ten feet deep, Taihu Lake was frozen, and people walked on the ice until the Lantern Festival the following year. In the winter of the seventeenth year of Guangxu, there was a great cold in Changhua County, and the river was ice-accumulated, which was several feet strong and could be used for walking. The snow in Taiping county is more than feet deep, coughing and spitting into ice, and the river is frozen and can’t sail. The snow in Haining is extremely cold, the river ice can be worn, and those who can’t get through the boat are tired. In the eighteenth year of Guangxu, all the rivers in Yuyao, Zhejiang were frozen. Heavy snow in Taiping County, coughing into ice, frozen rivers, unable to sail.

　　Studies have shown that Guangdong and Guangxi were equally cold in the Qing Dynasty, with the first low temperature period from the seventh year of Shunzhi to the eleventh year of Qianlong (1650-1750) and the second low temperature period from the ninth year of Daoguang to the second year of Xuantong (1830-1910), with the peaks of the two low temperature periods in the twenty-ninth year of Kangxi and the eighteenth year of Guangxu. For example, in the eighteenth year of Guangxu, the snow in Luchuan, Guangxi was two feet thick, the snow in Qinzhou was like cotton, the snow in Tai Po, Guangdong was three or four inches thick, and the waterfall in the mountain stream was frozen.

　　Since the beginning of the first half of the 20th century, the climate in southern China has become warmer, which is reflected in the relative warmth in the first 50 years. From the 1940s and 1950s, there was a brief cold period, which reached its peak in 1955. In the middle and lower reaches of the Yangtze River, there was an extreme low temperature of about minus 14 degrees Celsius, and both Dongting Lake and Hanshui River were frozen, while Taihu Lake was partially frozen, and the absolute lowest temperature below zero was also recorded in Guangdong and Guangxi.

　　Generally speaking, the winter low temperature disaster in southern China is very serious in the past 300 years. During the cold period, not only the middle and lower reaches of the Yangtze River generally have a long period of heavy snow, but also the land is seriously frozen, and most rivers and lakes are frozen. Many rivers and lakes have ice thickness that can pass pedestrians and cars. Not only do people cough and spit into ice in the wild, but also water bowls and wine jars at home freeze, some of which are as thick as three inches. This low temperature freezing situation is unprecedented in the past 100 years. The degree of low-temperature freezing disaster in Sichuan and Chongqing in the upper reaches of the Yangtze River is relatively weak, but some rivers in the northern part of the basin also appear freezing phenomenon, and Mianyang even turns boiling water into ice in an instant, which is more serious than this year’s low-temperature freezing disaster. In the high-altitude Yunnan-Guizhou Plateau area, sometimes it snows for as long as 40 days, and the bowl in Kunming freezes, and the degree of low temperature is also higher than that in modern times.

　　According to the 500-year temperature fluctuation map south of Huaihe River in Qinling Mountains of China, there are four cold periods from the mid-15th century to the 1970s, the mid-17th century, the mid-18th century and the late 19th century, and the cold period generally fluctuates between 100 and 150 years. In the past 300 years, 50 or 60 years in the early Qing Dynasty and 50 years in the late Qing Dynasty were the coldest periods. The extreme peak years of the former period were in the ninth year of Kangxi (in 1670, the middle and lower reaches of the Yangtze River and Lingnan) and in the 29th year of Kangxi (in 1690, the middle and lower reaches of the Yangtze River and Lingnan), while the peak years of the latter period were in the 17th to 19th years of Guangxu (in 1891-1893, the middle and lower reaches of the Yangtze River and Lingnan). At the same time, there are relatively extreme low temperature periods of about 50 years in this hundred-year cycle, such as the 26th year of Qianlong (in 1761, in the upper reaches of the Yangtze River), 14th year of Jiaqing (in 1809, in the upper reaches of the Yangtze River), 11th year of Xianfeng and 1st year of Tongzhi (in 1861 and 1862, in the middle and lower reaches of the Yangtze River) and 1955 (in the middle and lower reaches of the Yangtze River and Lingnan). Generally speaking, the low temperature degree of the heavy snow and freezing disaster in China this year is not as severe as the two heavy snow and freezing disasters in Kangxi and Guangxu years, nor as severe as the low temperature degree in 1955, but the scope of the disaster is rare. As far as the upper reaches of the Yangtze River and Lingnan areas are concerned, it is at least a once-in-50-year heavy snow and freezing disaster, and it can be described as a once-in-a-century winter low temperature and freezing disaster for the upper reaches of the Yangtze River.

　　Second, the impact of heavy snow and freezing disasters

　　Due to different social and economic backgrounds, the impact of low temperature and freezing disasters in different periods is also very different.

　　(1) In the traditional era, the socio-economic operation of urban and rural areas was mainly maintained by natural renewable fuels. In the Qing Dynasty, most urban and rural areas in southern China mainly relied on nearby biofuel firewood for heating and lighting, and transportation and communication were also mainly transmitted by people. The natural attributes of life and production were obvious, so the impact of low temperature disasters on the basic survival and production of urban and rural areas was limited. From the traditional era, the low-temperature freezing disaster in the south usually causes "people and animals freeze to death", "fish and turtles freeze to death", "fruit trees wither", "trees are completely broken", "houses are crushed" and "boats are blocked", etc., but it is not easy to make urban and rural areas completely paralyzed. Modern industrial civilization is based on non-renewable and non-biological fuels, and this foundation is often realized by great transportation and transshipment; At the same time, modern fuel-powered transportation has higher requirements for roads, while people and information flow more frequently in modern society, and basic survival has higher requirements for transportation and fuel power. Therefore, once the traffic is blocked, the fuel can’t be transported through the big traffic, and the power is interrupted, the modern industrial civilized society will be completely paralyzed, and the disaster caused to the society will be more obvious.

　　(2) In the Qing Dynasty, the population density in southern China was not as high as that in modern times, and the intensity and scope of economic development were not as good as now, so the impact of low temperature and extreme climate on production and life was objectively limited. Especially in many areas of southern China in the Qing Dynasty, the scale of agricultural production in winter was very limited, and many lands were left fallow. However, with the economic development in southern China, the scale and scope of industrial economy have been greatly expanded, the urban population has soared, modern industrial civilization has been further deepened, and the multi-cropping system of field crops has been popularized, especially the development of a large number of greenhouse planting industries. The impact of low-temperature freezing disasters on urban and rural production and life is much more obvious than that of the Qing Dynasty.

　　Of course, we should also see that in the face of low-temperature and freezing disasters in ancient times, although the scale and degree of the disaster may be small objectively, it is precisely because of the constraints of transportation and communication that people often can’t know the situation in the disaster area in time and can’t carry out disaster relief and mitigation in time, so it often has a great impact on people’s livelihood.

　　It should be pointed out that the modern industrial economy in the south of China has only a history of more than one hundred years, but it only took shape in the last fifty years. In history, this large-scale extremely cold and frozen climate in the south is often a time scale period of one hundred to fifty years, so strictly speaking, the modern industrial civilization in the south of China has not experienced the test of this extremely low temperature and freezing disaster. Therefore, we not only lack the psychological and countermeasure preparation for this emergency, but also lack the construction requirements for preventing this kind of low-temperature freezing disaster, such as building roofs, power transmission, highway and railway transportation, which do not have the technical requirements for preventing extreme low-temperature freezing under high humidity. Therefore, it is necessary for us to strengthen the research on the prevention of extreme freezing weather in winter and establish corresponding preventive countermeasures in the urban and rural construction and social development in southern China. (Author: Institute of Historical Geography, Southwest University)

Editor: Li Erqing

　　BEIJING, Shennongjia, October 25 (Luo Yongbin, Peng Linpeng) On the night of October 24, adult giant pandas "Olympic Games" and "Yunyun" arrived safely in Shennongjia, Hubei Province. This is considered to be the return of giant pandas to Shennongjia after more than 100 years, marking a key step in public education and scientific research of giant pandas in Shennongjia.

　　At 11: 00 a.m. on the same day, two giant pandas, escorted by shennongjia national nature reserve and the staff of China Giant Panda Protection and Research Center, set off from Qingchengshan Base in Dujiangyan, flew to Yichang Airport in Hubei via Chengdu, and then arrived at their "new home" in Guanmenshan, shennongjia national nature reserve by land that night. Routine inspection of the entourage showed that the two giant pandas were in good health and stable mood after arriving at home, and soon began to taste new food — — Fargesia shennong.

　　The two giant pandas who returned to their hometown Shennongjia this time were born in 2008, in their prime of life, healthy and lively, and they are about to start a new life in Shennongjia.

　　In 2015, in order to enrich and expand the field of natural science research in Shennongjia, the Party Committee and Government of Shennongjia Forest Region drew up a plan to implement the national treasure panda public education project in shennongjia national nature reserve, which was supported by the State Forestry Administration.

　　In recent years, according to the procedures and requirements of the public education and scientific research project on giant pandas, Shennongjia Forest Area has organized many batches of experts to carry out a large number of investigations, studies and demonstrations, initiated and implemented administrative examination and approval, venue construction, food sources, technology and financial guarantee, and finally decided to implement the panda arrival plan in late October.

　　The China International Conference on the Protection of Giant Pandas held from 19th to 21st of this month clearly stated that giant pandas are the common property of human beings and are still in an endangered state. All parties will make joint efforts to carry out in-depth cooperation in in-situ conservation, ex-situ conservation and public education of giant pandas. The implementation of public education and scientific research on giant pandas in Shennongjia is of great significance to enhance the public’s awareness and cognition of panda protection, effectively improve the protection and research ability of rare wild animals in Shennongjia, and carry out research on the food source and living environment of giant pandas in Shennongjia.

　　Shennongjia is the first "Triple Crown" heritage site in China, and its biodiversity has been widely recognized all over the world.

　　In September this year, the China Giant Panda Protection Research Center organized experts to inspect Shennongjia. In the assessment, it was pointed out that the ecological characteristics of Shennongjia and Sichuan Wolong Nature Reserve were very similar, and the climate and temperature, bamboo source types and quantities, and forest canopy were all in line with the living environment of giant pandas. At the same time, Shennongjia forest region has strong strength and fruitful achievements in the field of golden monkey protection and research, which can provide strong scientific and technological support and personnel support for the protection and development of giant pandas in the future.

　　It is understood that the newly-built Shennongjia Giant Panda Pavilion covers an area of more than 7,000 square meters, with a construction area of more than 1,700 square meters. Its natural environment and supporting research facilities can effectively meet the comfort and safety standards of giant pandas, and also meet the conditions for public display and scientific research.

　　Historical data show that Shennongjia was once a paradise for giant pandas, and the indirect influence of natural environment changes and human activities led to the disappearance of giant pandas in this area. It is of great significance and great responsibility for Shennongjia to welcome back the giant panda and carry out public education and scientific research. In order to achieve this goal at an early date, shennongjia national nature reserve has made careful, meticulous and meticulous preparations in environmental conditions, daily management, staffing, food source supply, disease prevention and control, etc.

　　According to the personage of Shennongjia Nature Reserve, the "Olympic Games" and "Yunyun" have a long-distance transportation, and there is still a process of adaptation to the new environment. Shennongjia Nature Reserve will cooperate with the technicians of China Giant Panda Protection and Research Center, take care of them, and make them better adapt to their "new home" as soon as possible. After quarantine, they will be visited by friendly humans.

On July 18th, recently, some owner users of Zhixing shared their experience videos in the user center on the Internet platform, and emphatically introduced the dining-related experience, and nicknamed the user center as "HarmonyOS Hotel" and "Wenjie Hotel".

IT House noticed that Yu Chengdong, managing director of Huawei and chairman of terminal BG, also shared his experience in "HarmonyOS Hotel" yesterday:

It’s very distinctive to come to HarmonyOS Zhixing User Center in Inner Mongolia for supper. We have launched more than 600 user centers across the country.Free vehicle inspection in summer, including More than 200 companies support HarmonyOS Zhixing starry night service., convenient for users to come after work, check a car,Have a mealFeel free to go home.

It is worth mentioning that Yu Chengdong also shared the menu of Guest Meal Week in Zhixing User Center in HarmonyOS, Inner Mongolia: the dinner time is 19:30-21:30, and during the period from July 14th to July 20th, the daily dishes are different, but they are all Chinese.Roughly including four main dishes+one soup+one fruit.The staple food is expected to be rice.

At present, the official meal price has not been announced yet. IT House called the local HarmonyOS Zhixing User Center and learned that,Car owners and users are free to eat, and no related fees are charged.. For reference, HarmonyOS Zhixing announced on the community platform at the end of last month that its offline layout reached a new high, and 32 new user centers were built from April to May. At present, there are 290+ users in Wenjie User Center, 160+ users in HarmonyOS Zhixing User Center and 710+ users in Experience Center. It is reported that HarmonyOS Zhixing will build high-end store services, including store image, exhibition hall environment, sales reception, coffee service, delivery ceremony and after-sales service. In addition, HarmonyOS Zhixing plans to build a 350+ user center in 2025.

　　Xinhua News Agency, London, August 31 (Reporter Gui Tao) On August 31, several British cities held demonstrations to protest against Prime Minister Boris Johnson’s adjournment of Parliament.

　　On the same day, tens of thousands of people marched in London, Manchester, Oxford, Liverpool, Leeds and Belfast, the capital of Northern Ireland. They shouted slogans and accused the Johnson administration of despising democracy and deliberately pursuing "no agreement to leave the European Union". There are both "Brexit" supporters and "Stay in Europe" supporters in the marchers.

　　The British Parliament, which is currently in summer recess, will resume on September 3rd. Johnson asked the parliament to adjourn again from September 9 to September 12, and the adjournment lasted until October 14. Queen Elizabeth II recently approved this request.

　　Critics believe that the deadline for Brexit on October 31 is approaching. If Parliament adjourns again, there will be only two weeks left for Members to exercise their rights on the issue of Brexit. Johnson’s request to adjourn the parliament again is to stop the members’ efforts to oppose "no agreement to leave the European Union". However, Johnson insisted that there was enough time for parliamentarians to discuss the issue of "Brexit".

　　The winter moon has arrived, and it is near the end of the year. The real estate market in 2021 was ups and downs.

　　In the first half of the year, real estate development loans, sales area and sales performance were very active, and house prices rose steadily in some cities. The turning point appeared in the middle of the year, and the financial regulation and control policies such as the "three-line and four-file" housing enterprise financing management rules and the loan concentration management of banking financial institutions gradually took effect, especially after the liquidity risk of individual large housing enterprises appeared as the "fuse", the market obviously cooled down in the second half of the year. With the sharp decline of the market, the virtuous circle of the real estate industry has been broken to some extent.

　　The Central Economic Work Conference held a few days ago proposed that the city should promote the virtuous circle and healthy development of the real estate industry, and made clear the focus of the current and future development of the real estate market. At present, the debt problem of some real estate enterprises is more prominent, and real estate sales, investment and land transfer all show signs of slowing down. In some cities, there is a wait-and-see mood of falling house prices and buying houses. Especially for areas with high industrial dependence, once the real estate market slows down excessively, it may trigger a more complicated risk transmission chain.

　　Real estate has a large scale, a long chain and a wide range of aspects, which accounts for a fairly high share in the national economy, fixed assets investment of the whole society, local fiscal revenue and total loans of financial institutions, and has an important systematic impact on economic and financial stability and risk prevention.

　　How to realize the virtuous circle and healthy development of real estate industry? Stable expectation is an important prerequisite. The Central Economic Work Conference proposed to strengthen the expected guidance. Many people are not optimistic about the future development of the industry due to the debt crisis of individual housing enterprises and the downward pressure on the real estate market. In fact, although there are serious debt problems in individual real estate enterprises at present, it is still a case, because the enterprises themselves are not well managed, and their influence need not be exaggerated. The overall healthy development trend of China’s real estate market will not change, and the risks of individual enterprises will not affect the normal financing function of the medium and long-term real estate market.

　　At the same time, the reasonable housing needs of buyers are being met. The Central Economic Work Conference proposed that it will support the commercial housing market to better meet the reasonable housing needs of buyers. According to the data released by the central bank on December 13th, the balance of individual housing loans was 38.1 trillion yuan at the end of November, an increase of 401.3 billion yuan in that month, an increase of 53.2 billion yuan over that in October. The recent increase in the balance of personal housing loans is conducive to better meeting the mortgage demand of the first and improved housing.

　　On the basis of stable expectations, the supply and demand blocking point is expected to break through, and a virtuous circle of the real estate industry is expected. The cooling of the real estate market is easy to be transmitted to other links. When the transaction volume of second-hand houses decreases and fewer buyers buy new ones, the new house market may be neglected, while the sales of the new house market directly affect the payment of enterprises. Once the funds are insufficient, it will reduce the enthusiasm of enterprises to take land, and then the cooling will be transmitted to the land market. It can be seen that one link is stagnant and it is easy for the whole market to "turn". To achieve a virtuous circle and healthy development of the real estate industry, efforts should be made to control the liquidity risk of housing enterprises and avoid the transmission of local risks to the whole system. At the same time, it is necessary to smooth all links in the chain of "financing, land acquisition, sales, loans and payment". The improvement of the financing of housing enterprises and the credit environment of buyers will help the real estate industry to further realize a virtuous circle.

　　To achieve a virtuous circle and healthy development of the real estate industry, enterprises need to constantly explore new development models. The development model of high leverage, high debt and high turnover in the real estate industry in the past 20 years has been unsustainable; On the whole, China will gradually transition from incremental development of large-scale demolition and construction to stock transformation; From the perspective of housing supply, from the past, we paid more attention to buying and renting, and changed to renting and buying at the same time. All these decide that real estate enterprises should adapt to the changes and explore new development models.

　　In the process of solving the housing problem, housing leasing will play an increasingly important role. The Central Economic Work Conference proposed that we should adhere to both rent and purchase and accelerate the development of the long-term rental market. Specialized and large-scale housing leasing enterprises are an important carrier to improve professional services in the leasing market. Factors such as high cost and narrow profit space in leasing industry hinder the specialization and scale development of enterprises. Statistics show that the institutionalization rate of housing leasing in first-tier cities in China is less than 15%. Therefore, to speed up the development of the long-term rental market, we should speed up the cultivation of specialized and large-scale housing rental enterprises.

　　To realize that all people have a place to live, housing security cannot be absent. The Central Economic Work Conference proposed to promote the construction of affordable housing. China’s housing security system has completed the top-level design, including public rental housing, affordable rental housing and shared property housing. Among them, affordable rental housing, which focuses on solving the outstanding housing problems in big cities and alleviating the housing difficulties of new citizens and young people, will become the top priority of affordable housing in the new development stage.

　　The central economic work conference once again stressed that "housing is not speculation", indicating that the bottom line cannot be broken. To promote the virtuous circle and healthy development of the real estate industry, we should take "keeping the word steady, striving for progress while maintaining stability" and "trying to smooth the national economic cycle" as the starting point, instead of having the mentality of stimulating and speculating on real estate. (This article Source: Economic Daily Author: Kang Shu)

　　The work "Angel Mother". Photo courtesy of Jiangsu Cancer Hospital

　　Zhongxin. com, Nanjing, May 11th (Xu Linhua, Xu Shanshan) "I lend my dearest mother to you", "My mother is an angel guarding this city, an angel with light" and "My mother is angels in white with wings" … … On the eve of the International Nurses’ Day on May 12th, the children of nurses sketched their parents’ images in various ways, such as painting, calligraphy, photography and poetry.

　　"I lend my dearest mother to you."

　　Zuo Jingfang of Jiangsu Cancer Hospital (affiliated tumor hospital of Nanjing Medical University) rushed to Huangshi, Hubei Province in 2020 with Jiangsu medical aid team, and served as the head nurse of respiratory department of Huangshi Central Hospital, leading more than 100 nurses in Jiangsu and Huangshi to work in the front line. In April this year, she also participated in supporting nucleic acid collection in Jiangsu Province. Before Nurses’ Day, my son drew a picture with this theme, called "Borrowing Mom".

　　The work "Borrow Mom". Photo courtesy of Jiangsu Cancer Hospital

　　"I am one of the dual-employee families in the hospital. Everyone is busy. My lover often comes home late for surgery, and the children can only be taken care of by the elderly." Zuo Jingfang said. She wants to say "sorry" to her family and children. Because of work reasons, I often can’t take care of my family, so many schools are absent from parent-child activities.

　　"Although this profession is very hard, it has also gained a lot. After the COVID-19 epidemic, more and more people recognized us, and the relationship between doctors and patients became more harmonious. " Zuo Jingfang said.

　　The work "Xiao Bai, Anti-epidemic Record". Photo courtesy of Jiangsu Cancer Hospital

　　"Wait for spring, the epidemic will be over" and "Xiaobai, Anti-epidemic Record"

　　Support Nanjing nucleic acid collection for 13 days in July 2021; In March 2022, he supported the nucleic acid test in Jiangbei New District for 16 days with the Jiangsu Provincial Team; In May, the team leader supported Nanjing nucleic acid collection … … This series of data records the anti-epidemic footprint of Jing Jiang.

　　Jing Jiang is a nurse in charge of the nursing department of Jiangsu Cancer Hospital and the mother of twins. Because he has participated in nucleic acid collection for many times, he has to be the team leader or team leader. Jiang Jing is busier than other team members, leaving little time for the children.

　　"Mom, where have you been?" "Mom went out to fight the virus." "Mom, what do you use to fight the virus?" "Wear white protective clothing, wash your hands frequently and disinfect your whole body." So, Jing Jiang’s son drew a picture like a comic book, called "Xiao Bai, Anti-epidemic"; My daughter’s work is called "When Spring Comes, the epidemic will be over". After the children drew, they couldn’t write many words, so Jing Jiang helped them write on the picture.

　　"I hope dad will help Shanghai win the virus as soon as possible."

　　"I was going to draw a picture of Jiangsu medical team’s anti-epidemic work in Shanghai with my daughter before the nurse’s day, but I can’t go home because the support work is not over yet." Jason Han Han smiled at the other end of the phone and said slightly embarrassedly.

　　As one of the few male nurses in the hospital, Jason has already been "battle-hardened". It has been 12 years since I joined the work in 2010. He said: "There are many young people in our group who haven’t worked for a long time, so I have to set an example. After all, I have more experience than them, and I have to take part in the anti-epidemic for a longer time and be more rigorous."

　　Zhang Jie has two daughters, the older is 6 years old and the younger is only 2 years old. He participated in aiding Shanghai to fight the epidemic, and his wife was studying in Hangzhou, Zhejiang Province. Because of the epidemic, both of them could not go home, so they had to entrust their children to their parents. "Want to daughter! I haven’t held my daughter for more than a month, and it must be false to say that I don’t want to! " Jason said that the support work is still going on, and all the players are working hard at the front line. The daughters all said, "I hope my father will help Shanghai win the virus as soon as possible and go home as soon as possible."

　　Nurse’s Day is coming, and Jason has set himself a goal: to become an excellent operating room specialist nurse, and "she is working hard in this direction at present".

These days, the male host of CCTV earned enough space, and even a host resigned on the Internet. But don’t worry, there is no one else to watch. If you really want to talk about CCTV anchors, these high-value new generation beauties must not be missed!

1. Li Sisi used to be the beauty of Peking University.

Li Sisi, born in 1986, is a representative of the new generation Hua Dan of CCTV. In 2012, she acted as the host of the the Year of the Loong Spring Festival Gala, becoming the youngest host on the stage of the Spring Festival Gala. Before being the host, Li Sisi actually stepped into the entertainment circle very early. When she was 9 years old, she filmed the MV of Dong Wenhua’s "The Ballad of the Great Wall". When she grew up, she was admitted to Peking University, and she was named "the flower of Peking University". In 2005, she became the only female champion who served for 8 issues in Challenge Host, and has since entered the stage of CCTV.

The stage is temperament type.

Under the stage is-Meng Meng Da!

Life photos of Li Sisi

2. Yang Mingming became the "Central 5 Goddess" during her internship.

Unlike other female anchors, Yang Mingming, born in 1992, was a hit during her internship.
Red. In 2012, Yang Mingming entered the CCTV Sports Program Center as the first batch of interns. At that time, she appeared in the Midnight Sports Report. Her sweet appearance instantly became popular on the Internet, and some netizens stayed up all night to watch new movies for her.
Smell. Because of her outstanding performance during her internship, Yang Mingming stayed at CCTV after graduation, and now she has become the host of CCTV’s "Feast of the Giants".

Life photos of Yang Mingming

3. Tu Jingwei and Xiaosa used to be golden couple.

Tu Jingwei, born in 1980, is the head of the film channel Hua Dan. As the host of "China Film Report" and "Premiere", she is sensitive in the program, not only active on the screen, but also frequently appearing in major film festivals. Outside of work, the relationship between Jingwei and Sa Beining is also widely known. In 2006, they hosted the Changchun Film Festival and sparked off a spark. They were regarded as the "golden couple" of CCTV, but this relationship ended in 2009.

Tu Jingwei

4. Lei Zhang was once called the successor of Dong Qing.

Like Li Sisi, Lei Zhang became famous on the stage of Challenge Host. In 2006, she stood out from more than 11,000 contestants and was announced to join CCTV on the spot. Later, Zhang Lei was the host of Happy China and Happy Hero. With her dignified and generous hosting style and sweet appearance, she was regarded as the successor of Dong Qing. However, in the rising period of her career, she retired, married an iron ore tycoon in 2013, and did not return to CCTV until March 18, 2014, and then served as the host of Variety Festival.

High-end atmospheric portrait, beautiful ~

Professional modeling ~

5. Mi Li once appeared in the movie "The Thorn Tomb".

Mi Li, born in 1986, is currently the host of China Film Report, The Sound of Music and last romance on CCTV film channel. With a pure image, she is not only the beauty queen of China Communication University, but also a famous talented woman. Now she is studying for Dr. Peking University, and she is more proficient in both Chinese and English. With a good appearance, she has also crossed the border many times. She once made a guest appearance as a pork girl in the movie "Thorn Mausoleum" and even appeared in the short film "Charm Sound" with friendship.

Mi Li and Chen Daoming took a group photo at the shooting scene of "Thorn Mausoleum"

Normal work clothes are like this ~

Mi Li visited the barracks.

six.Rachel became popular because of the title of "Squire Liu"

1986
Rachel, born in, is the anchor of CCTV’s "NBA Frontline". With her sweet appearance, she is deeply loved by male fans with her natural girl-next-door temperament and is called the most beautiful sports female anchor in CCTV history. However, she
There is also a louder nickname-"Squire Liu". It turned out that during the World Cup in Brazil, which team rachel wore was out, and her strong ability of "reverse prediction" made her an instant hit on the Internet.

rachel

7. Qin Fang was once the top three in the beauty contest.

On July 26th, 2011, Qin Fang, the anchor of CCTV, choked to broadcast the rear-end collision of a bullet train after introducing Yi Yi’s situation in the program, which attracted the attention of netizens. Qin Fang, who hosted International News and Weather Information, was named one of the top ten beauty anchors of CCTV earlier because of her elegant temperament. With a delicate appearance, she has participated in many beauty contests, not only being among the top three beautiful girls in Chongqing, but also winning the title of Chongqing Division of the New Silk Road Model Contest. In addition, Qin Fang was the top student in the college entrance examination. She was admitted to Communication University of China as the top student in Chongqing Arts.

Anchor platform

Qin Fang photo

Life photo

8. Hu Die

Hu Die was born in Hanzhong, Shaanxi Province on February 16th, 1983. In June, 2005, Hu Die graduated with the first grade in comprehensive assessment, gave up the insurance research and entered Beijing TV Station, and embarked on the road of news broadcasting. In July 2009, he began to host the news program "Chao Wen Tian Xia", which was broadcast live by CCTV-1 and CCTV- News. Won the "2010 Famous Host" of CCTV. It was only recently exposed that Lu Chuan was certified.

Hu Die

9. Ma Fanshu

Ma Fanshu was born in Harbin on November 6th, 1993. On the evening of November 24th, 2014, Ma Fanshu made his first appearance as the host in CCTV’s newly revised Football Under the World. In the program, Fan Fan, who appeared in a green dress, cooperated with Duan Xuan tacitly and showed humor.

ma fan shu

(Observer Network Integrated International Online and other media)

　　Cctv news: On June 24, 2019, the State Council Press Office held a press conference. Han Jun, deputy director of the Central Rural Work Leading Group Office and vice minister of the Ministry of Agriculture and Rural Affairs, and Wu Hongyao, member of the Party Group of the Ministry of Agriculture and Rural Affairs and director of the Secretariat Bureau of the Central Rural Work Leading Group Office, introduced the situation of rural governance and answered questions from reporters.

　　Reporter: I have two questions. The first one is about what measures will be taken to standardize small and micro power and prevent fly corruption? The second question is about the hollowing out of villages and the "three left-behind" problems in rural areas. How to arrange the Guiding Opinions and what measures will be taken next?

　　Wu Hongyao:The document clearly stipulates the corruption of small and micro power, that is, the corruption that occurs around the peasants, and also puts forward clear requirements to increase the punishment of small and micro power corruption at the grassroots level. This document emphasizes the need to standardize the operation of small and micro power in rural areas, clarify the legal basis, scope of operation, subject of execution and procedure steps of each power exercise, and establish and improve the supervision system of small and micro power at the same time, so as to form a real-time, multi-network supervision system including mass supervision, supervision committee supervision, superior department supervision, accounting supervision and audit supervision. The document also requires that the grass-roots power in rural areas should be closely organized to run a "clean government protection network", that micro-corruption in rural areas should be vigorously rectified, that rural inspections should be promoted, and that corrupt acts that infringe on farmers’ interests should be seriously investigated and punished. In this regard, key rectification has also been carried out in the special struggle to eliminate evils deployed throughout the country.

　　Han Jun:On the issue of "three left behind", with the rapid advancement of urbanization, the rural population continues to decrease, and the problem of "three left behind" in rural areas in some places has become increasingly prominent. The key to solving the problem of "three left-behind" is to establish and improve the care service system of "three left-behind", which is emphasized in the No.1 document of the Central Committee every year and is constantly advancing. The Guiding Opinions on Strengthening and Improving Rural Governance also puts forward some requirements for doing this work well.

　　Generally speaking, the first thing is to give full play to the role of the government, and the government should shoulder its due responsibilities and continue to increase investment. Secondly, we should give full play to the role of society, especially the role of social workers, including volunteers. This is also a key area. In recent years, there have been many good explorations. It can be said that a very strong atmosphere has been formed in mobilizing social forces to participate in the establishment of the "three left-behind" care service system. The next step is to promote these good experiences, and to encourage and commend those who have made contributions.

　　To solve the problem of "three left-behind", we should also emphasize the family’s due responsibilities. For example, for left-behind children, it is necessary to emphasize the responsibility of parents in rural families to support their children. In a word, the caring service system can only be truly established if a mechanism of government responsibility, social participation and family responsibility is formed.

In terms of appearance, as a mid-term redesigned model, the design of the 2020 BMW x8 is basically the same as that of the models on sale. The new car adopts a brand-new "diffusion sports kit", equipped with a black kidney-shaped middle net, and the sides, roof and rims are all dark. The rear of the car adopts a brand-new design, the shape of the long and narrow led taillights echoes the headlights, and the exhaust adopts a two-way layout.

Entering the car, the interior design is also full of luxury and exquisiteness. The car body is covered with a large area of leather, bright chrome trim, carbon fiber trim, leather and chrome elements, creating a very luxurious interior atmosphere. The full LCD instrument panel, three-position flat-bottomed, suspended LCD central control panel and chicken-leg electronic shift lever all create the ultimate sense of technology for the car.

The length of the BMW X7 is 5170mm, the width of the car body reaches 2000mm and the wheelbase is 3105mm, which is quite satisfactory. Among the models of the same class, the wheelbase of the BMW X7 ranks 21st. This size exceeds most models in its class. The actual interior space performance is also very good. From the actual ride experience, the front and rear rows are relatively spacious. The skylight of BMW X7xDrive M60i provides a wider view, which can create a better visual environment and good sensitivity for the rear passengers, and increase the light entrance for the whole vehicle. Among the models of the same price and class, the trunk volume of BMW X7 ranks 135th. The shape is very regular, and the storage volume is absolutely no problem for daily use.

The BMW X7 is equipped with a 4.4 engine with a maximum output of 390kW and a maximum torque of 750Nm. 4.4 The power performance of the engine on the BMW X7 is quite satisfactory, and the low torque is weak and the hysteresis can be felt. The official measured acceleration of BMW X7 is 4.7S, ranking 88th among SUV models with more than 800,000.

The active/passive safety configuration of BMW X7 is complete, includingAutomatic parking、Zero tire pressure endurance tire、Automatic parking、Steep slope descent、hill start assist control、knee airbag、HUD head-up display、Anti-lock braking (ABS)、Braking force distribution (EBD/CBC, etc.)、Brake assist (EBA/BAS, etc.)、Traction control (ASR/TCS, etc.)、Active noise reduction、Engine start and stop、Side safety air curtain、Wireless charging of mobile phone、night vision system、LED daytime running lights、Forward reversing radar、Tire pressure monitoring、Steering wheel heating、Body stability control (ESP/DSC, etc.)、Rear reversing radar、Fatigue reminder、Remote parking、Child seat interface、Lane keeping (LKAS)Equal configuration.

Among them,Automatic parkingYou can avoid stepping on the brakes for a long time or needing to pull frequently;Steep slope descentCan safely pass through steep slope road conditions at low speed;knee airbagReduce the injury of the car interior to the occupant’s knees in the secondary collision.

In order to get a more comprehensive and objective understanding of BMW X7, you can go to the BMW X7 forum and browse the messages of users who have bought the car in history.