Expert: There is a new trend of warming and humidification in Northwest China. The ecological environment has been restored remarkably.

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 Expert: There is a new trend of warming and humidification in Northwest China. The ecological environment has been restored remarkably.


Over the past 30 years, this inference has been confirmed. The increase in precipitation is mainly due to climate warming, and the trend is expected to continue until the middle of the 21st century. Ding Yihui, deputy director of the National Committee of Climate Change Experts, said.

The reporter learned from the meteorological departments of Shaanxi, Gansu, Ningxia and Qinghai provinces and regions that since 1961, the Northwest has been warming up and most of the precipitation has increased. After 2000, the warming and humidification became more significant.

Take Gansu as an example. From 1961 to 2015, the average temperature rose by 0.29 degrees Celsius every 10 years. The precipitation varies from east to west. The precipitation in Hexi Corridor increases by 4 mm to 12 mm every 10 years. In 2018, the average temperature of Gansu Province was 0.7 degrees Celsius higher than that of the year round, and the average precipitation was 27.7% higher than that of the year round.

The positive cycle of natural warming superimposes the positive trend of global warming caused by human activities, which leads to this situation. This is a trend, not a periodic shock. Ding Yihui said.

Zhang Qiang, deputy director of Gansu Meteorological Bureau, said that northwest China is more sensitive to global warming and the impact of climate change is more significant. For example, from 1973 to 2016, the average temperature of Qilian Mountains, which is the ecological security barrier in the west, rose by 0.45 degrees Celsius every 10 years, which is significantly higher than the national and global average.

According to the data of Lanzhou Regional Climate Center, the vegetation coverage in Gansu Province in 2018 was the highest in the past 18 years, the Gobi desert area was reduced, and the ecological environment was significantly restored. The suitable areas for cash crops are moving northward and toward high altitude areas. He Jiaqi, who founded an agricultural cooperative in Yangjiasi Town, Qinzhou District, Tianshui City, at an altitude of more than 1500 meters, said: Now vegetables can also be grown in high altitude areas, and the prices of vegetables listed in staggered seasons are high. Climate change is a double-edged sword. Experts said that in Northwest China, drought and flood coexist and increase simultaneously. The increase of extreme weather has increased the pressure of disaster prevention and mitigation. Li Zongjian, an associate researcher of the Chinese Academy of Sciences, said that climate change has brought new opportunities to Northwest China, but the underlying environment of drought in Northwest China will not change. The relationship between sustainable development and water shortage should be well coordinated to meet new challenges. Source: Xinhua responsible editor: Wang Fengzhi_NT2541

According to the data of Lanzhou Regional Climate Center, the vegetation coverage in Gansu Province in 2018 was the highest in the past 18 years, the Gobi desert area was reduced, and the ecological environment was significantly restored.

Climate change is a double-edged sword. Experts said that in Northwest China, drought and flood coexist and increase simultaneously. The increase of extreme weather has increased the pressure of disaster prevention and mitigation.

Li Zongjian, an associate researcher of the Chinese Academy of Sciences, said that climate change has brought new opportunities to Northwest China, but the underlying environment of drought in Northwest China will not change. The relationship between sustainable development and water shortage should be well coordinated to meet new challenges.