The Qinghai Institute of Meteorological Sciences revealed to reporters from China News Agency on the 15th that monitoring shows that since 2009, the area of typical lakes in the Qaidam Basin has shown an increasing trend, with an average annual increase of 8.45 square kilometers.
The Qaidam Basin, known as China’s “treasure bowl”, is located in Haixi Prefecture, Qinghai Province, with an area of about 265,000 square kilometers. It is one of China’s important energy and mineral resource-rich areas and an important wind and sand fixation ecology in western China. Ribbon.
According to Zhou Bingrong, director of the Institute, the “Qaidam Basin Ecological Meteorological Bulletin (2019)” (hereinafter referred to as the “Bulletin”) jointly released by the Qinghai Meteorological Bureau and the Haixi Meteorological Bureau is based on ground and satellite remote sensing monitoring data. Monitor and evaluate the meteorological conditions, vegetation ecology and water resources in the Qaidam Basin in 2019, and carry out monitoring of typical eco-meteorological disasters such as sand and dust weather and lake expansion.
The monitoring results show that the average annual temperature in Qaidam Basin in 2019 is 4.4 degrees Celsius, the annual precipitation is 132.8 mm, and the annual sunshine hours are 2709.3 hours; compared with the average in the past decade, the average annual temperature is slightly lower and the annual precipitation The amount stayed slightly higher, the annual sunshine hours were less, and the water conditions were better.
At the same time, the snow area in the Qaidam Basin in 2019 increased by an average of 1.1 times over the past decade; except for the central and western regions, the snow cover days in most areas of the basin were greater than 10 days, and the local area was greater than 50 days, an average increase of 11 over the same period in the last decade. Day to 13th.
In addition, monitoring shows that since 2009, the area of typical lakes in the Qaidam Basin has shown an increasing trend, with an average annual increase of 8.45 square kilometers. Among them, Xiaochaidan Lake, Tuosu Lake, and Gahai Lake have grown faster, nearly ten times faster. The annual average increase was 37.68%, 12.34% and 11.02% respectively.
“After the flood, the area of Xiaochaidan Lake continued to expand, approaching the nearby highway; the area of Tosu Lake significantly expanded, affecting the tourism of alien ruins in Haixi Prefecture; the expansion of Yahu Lake, a subsidiary of East Taijiner Lake, affecting the surrounding traffic; Gaskoo Lehu Lake slightly expanded, affecting the surrounding ecological environment. “Zhou Bingrong said in an analysis.
Zhou Bingrong stated that the Communiqué proactively provided a comprehensive, refined, and intelligent meteorological support service in the Qaidam Basin, with a view to helping the development of green and low-carbon cycles in the Qaidam region and contributing to the “meteorological wisdom” of the pre-construction of Kunlun Mountain National Park.