China's Yangtze river shrinks as heatwave and drought threaten crops
August 15, 2022, 2:00 pm

China's Yangtze river shrinks as heatwave and drought threaten crops

The Yangtze, known in modern Chinese as the Chang Jiang, is the longest river in Asia, the third-longest in the world and the longest in the world to flow entirely within one country - Text. Wikipedia/Photo. Pixabay

Regions that rely on the Yangtze, China's longest river, are having to deploy pumps and cloud-seeding rockets as a long drought depletes water levels and threatens crops, and a heatwave is set to last another two weeks, Reuters reported, according to the the US news.

The Yangtze's middle and lower reaches have faced temperatures in excess of 40 Celsius (104 Fahrenheit) over the past month, with experts blaming climate change-induced variations in the western Pacific subtropical high, a major determinant of summer weather throughout east Asia.

The Shanghai government's Guangming Daily newspaper reported that with the autumn harvest under threat, the agriculture ministry has deployed 25 teams to key regions to take action to protect crops.

The heatwave is likely to last for another two weeks, making it the longest sustained period of extreme temperatures since records began in 1961, experts with China's National Climate Center told the official Science and Technology Daily on Monday (August 15).

Heatwaves often have complex effects on human economies, due to less productivity of workers, disruption of agricultural and industrial processes and damage to infrastructure not adapted for extreme heat - Photo. Pixabay

Rainfall in the Yangtze river drainage area fell about 30% in July and is 60% lower than normal in August, with the river's tributaries "significantly lower" than historical levels, according to the Yangtze River Water Resources Commission.

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The Poyang lake in central China's Jiangxi province, which plays a major role in regulating Yangtze water flows in the summer, has shrunk to levels normally seen during the winter dry season after a 50% decline in rain in July.

Media reported, villages relying on water from the lake have been forced to deploy pumps to irrigate rice fields.

In the sprawling southwestern municipality of Chongqing, facing its second hottest summer since records began in 1961, 900 missiles have been made available to try to "seed" clouds and induce rain, media reported.

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Other regions have launched their own weather modification operations.

Official data showed, China normally releases water from the Three Gorges reservoir to relieve drought on the Yangtze but downstream outflows are half the level of a year earlier.

Source: usnews

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