Xining, May 5 (ZXS) -- Qilian Mountain National Park Qinghai Provincial Administration Bureau and Qinghai Meteorological Bureau jointly issued the "Qilian Mountain National Park Qinghai Area Ecological Meteorological Bulletin (18)" (hereinafter referred to as the "Communiqué") on the 18th. The "Communiqué" shows that from the perspective of glacier changes, the area and ice reserves of Tuanjiefeng Glacier, Ganggerxiao Heli Glacier and Bayi Glacier in Qinghai Area of Qilian Mountain National Park in 2022 are reduced compared with the second glacier inventory and 2022.
Located at the intersection of the Qinghai-Tibet Plateau, Mengxin Plateau and Loess Plateau, Qilian Mountain is an important ecological security barrier in western China, an important production area of the Yellow River Basin and northwest rivers, and a priority area for biodiversity conservation in China. It is also the intersection of the southeast humid monsoon area, the northwest arid area and the alpine region of the Qinghai-Tibet Plateau.
"Compared with the average of the past decade, the snow area in the snow season of the park in 2022 increased by 61.5%, and the number of snow days increased by one day; In 1, the date of complete thawing of the frozen soil in the Qinghai area of Qilian Mountain National Park was advanced, the date of freezing was postponed, and the soil moisture in the growing season from May to September was generally flat. Fu Yang, director of the Emergency and Disaster Reduction Division of Qinghai Meteorological Bureau, said.
In addition, the reporter learned from the "Communique" that compared with the past ten years, the annual average temperature in the Qinghai area of Qilian Mountain National Park is high, the accumulated temperature is greater than or equal to zero degrees Celsius, the annual precipitation is slightly more, and the annual sunshine hours are slightly less; The growth period of grassland was flat or slightly prolonged, the amount of grassland was flat, the vegetation coverage increased, and the net primary productivity of vegetation increased. Compared with before the pilot, the desertification land area decreased, the overall carbon sequestration and oxygen release of vegetation increased, the overall preference of vegetation ecological quality index, the overall improvement of water conservation service capacity, and the regional meteorological conditions were conducive to the development of vegetation ecological quality.
According to reports, since the launch of the pilot system of Qilian Mountain National Park in 2017, the Qinghai Provincial Administration Bureau of Qilian Mountain National Park and the Qinghai Meteorological Bureau have jointly issued the "Communiqué" for six consecutive years.
Compared with previous years, the 2022 Communiqué integrates the scientific research achievements of Qinghai Climate Center, Heihe Station of Northwest Institute of Eco-Environmental Resources of the Chinese Academy of Sciences, and Institute of Hydrobiology, Chinese Academy of Sciences. New assessment elements such as carbon source and sink assessment of grassland ecosystem in the park, contribution rate of vegetation ecological quality and meteorological conditions; The assessment structure of comprehensive ecological status before and after the pilot system of Qilian Mountain National Park was added. (End)