Is land desertification serious in Qinghai? To what extent? Is there a sandstorm?

It is understood that as early as September 2003, the relevant departments conducted site selection in five typical desertification areas, including Lenghu Lake in Qaidam Basin, Xiaozaohuo, Gangcha in the north of Qinghai Lake and Xinghai in the north of Qingnan Plateau.

Found the GPS location of the dune. According to the recent sand dune positioning data, it is found that the sand dunes in the above five areas have obvious horizontal movement and vertical change.

According to experts, the monitoring data of sand dunes show that the biggest vertical change of sand dunes is the small fire, and its height is reduced by 2 meters, * * * and 0.5 meters, and the rest areas are reduced by 1 meter. The maximum horizontal movement distance of sand dunes is Xinghai 27. 1 m, Lenghu 1.6 m, and the rest places are between 9-10.7 m. Among the above five areas, Lenghu is a slow sand dune; * * * and belongs to the medium-speed sand dunes; Xinghai, Gangcha and Xiaozaohuo all belong to fast sand dunes. Experts once again pointed out that the task of preventing and controlling desertification is still arduous.