Where is the average rainfall in the Yangtze River basin in the past 60 years?
The average rainfall in the Yangtze River basin is the highest in the same period in the past 60 years.
According to the Central Meteorological Observatory, since June 1, there have been six heavy rains in the south. As of July 12, the average rainfall in the Yangtze river basin reached 403 mm, 49% more than the normal period, exceeding 20 16 (395 mm) and 1998 (358 mm), accounting for 660.
At the same time, the monitoring shows that on July 8 18, the area of the main body of Poyang Lake and its adjacent waters increased by 352 square kilometers to 4,206 square kilometers compared with that on July 2, which was 20% larger than the historical average (35 10 square kilometers) and was the largest in 10 years. Five tributaries flowed into the hukou wetland and were flooded in a large area.
On 13, the "pause button" was pressed for heavy rainfall in the south, but from 14, heavy rainfall will accumulate strength and strike again, and the eastern part of southwest China, Jianghan, Jianghuai and northern Jiangnan will be covered by rain. The Central Meteorological Observatory predicts that from June 5438+04 to June 16, there will be heavy rains and local heavy rains in parts of the eastern part of southwest China, Jianghan, Jianghuai and northern Jiangnan.
The current flood control situation is very severe. At present, the main stream of the Yangtze River and Dongting Lake, Poyang Lake and Taihu Lake below Jianli are still exceeding the police. Meteorologists reminded that Yunnan, Guizhou, Chongqing, Jianghuai, Jianghan, northern Jiangnan and other places should pay attention to geological disasters such as floods in small and medium-sized rivers, waterlogging in urban and rural areas and flash floods that may be caused by heavy rainfall; The changes of rain and flood in the Yangtze River basin, Poyang Lake, Dongting Lake and Taihu Lake basin need to attract public attention.
Heavy rains and floods have affected agricultural production in parts of southern China. The Central Meteorological Observatory predicts that the rain will weaken after July 16. Experts suggest that the southwest, the middle and lower reaches of the Yangtze River and the Huaihe River basin should pay close attention to weather changes, reduce the impact of waterlogging disasters, rationally fertilize and promote the recovery of affected crops as soon as possible; In the mature early rice area, water accumulation is given priority, and mowing can be done manually when the field is turned, so as to minimize the loss.
Where does the Yangtze River Valley refer to?
The Yangtze River Basin refers to the vast area where the main stream and tributaries of the Yangtze River flow, spanning the three major economic zones in eastern, central and western China, covering 19 provinces, municipalities and autonomous regions. It is the third great basin in the world, with a total area of 1.8 million square kilometers, accounting for 18.8% of China's land area, and is rich in natural resources.
The main stream of the Yangtze River runs through central China from west to east, passing through Qinghai, Tibet, Sichuan, Yunnan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu and Shanghai1/provinces, autonomous regions and municipalities directly under the Central Government, and hundreds of tributaries extend to Guizhou, Gansu, Shaanxi, Henan, Guangxi, Guangdong, Zhejiang and Fujian.
The Yangtze River basin is bounded by Bayan Kara, Xiqiao Mountain, Minshan Mountain, Qinling Mountain, Funiu Mountain, Tongbai Mountain, Dabie Mountain and Huaiyang Mountain in the north, Yunling Mountain, Dali Jizu Mountain, Yunnan Zhongdongshan Mountain, Wumeng Mountain, Miao Ling and Nanling Mountain in the south, Lancang River, Yuanjiang (Red River) and Pearl River Basin in the southeast, and Wuyishan, Twelve Mountains and Huangshan Mountain in the south.