2019 National Eco-Meteorological Bulletin released
Normal preference for water and heat conditions in most areas
Beijing, April 29 (Reporter Zhao Beijia) China Meteorological Administration released the "2019 National Eco-Meteorological Bulletin" (hereinafter referred to as the "Bulletin") on the 29th. The Bulletin pointed out that in 2019, most of the country ’s water and heat conditions have normal preferences, and meteorological disasters such as drought, typhoons, storms and floods have a slight impact on vegetation growth, which is conducive to the growth of grasslands, forests and other vegetation and crops. It is 67.6, an increase of 6.1% compared with normal years, and the ecological quality is a preference year.
From 2000 to 2019, 93% of the country ’s regional average annual temperature showed an upward trend, and 80.6% of the region ’s annual precipitation showed an increasing trend. Good water and heat conditions are conducive to vegetation growth; in addition, various regions have increased ecosystem protection and restoration The intensity has effectively promoted the development of vegetation ecological quality. Although affected by meteorological disasters such as drought, rainstorm, and typhoon in 2019, the national vegetation ecological quality index is the fourth highest since 2000, but it is still at a relatively high level. 92% of the country ’s regions have become “increasingly” since 2000. The greener. " Among them, from 2000 to 2019, the national net primary productivity of vegetation increased by an average of 3.6 grams of carbon per square meter per year, and the vegetation coverage increased by an average of 0.25 percentage points per year.
From 2000 to 2019, the ecological quality of surface vegetation in most areas of northern China is getting better and better, and the role of vegetation on the surface's resistance to wind erosion has been significantly enhanced. 41.9% of the year, with an average annual decrease of 0.4 percentage points, the overall trend is a slow decline; the proportion of areas that are light and not prone to dust rises from 30.3% in 2000 to 39.6% in 2019. The land in the north of China, which is highly susceptible to dust and dust, is gradually transitioning to moderate, light, and hard to dust, and the ecological function of vegetation for wind and sand fixation has been significantly improved.
In addition, the Communiqué also carried out meteorological monitoring and evaluation of Qilian Mountain, Sanjiangyuan, southwest rocky desertification area, Dongting Lake and Poyang Lake. Among them, due to factors such as increased precipitation and increased temperature, the vegetation ecology of the Qilian Mountains has improved significantly in 2019 and 2018, with 2019 being the best since 2000; in 2019, Qinghai Lake has the largest water body area.