Study of the social economic development impacting the desertification in southern Xinjiang
Obul Talip;Alimujiang Kasimu;School of Business,Xinjiang Normal University;School of Geographical Science and Tourism,Xinjiang Normal University;Center of Silk Road Economic Belt Urban Development Study of Xinjiang Normal University;
Ecosystem degradation intensifies the desertification in southern Xinjiang. In this paper,desertification in southern Xinjiang is analyzed by using the NDVI data through the support of ENVI software. The result shows that the area of desertification in southern Xinjiang had increased 11 percent from 1952 through 1983. Among them,the area of heavy desertification had increased approximately 14. 21%,while the area of moderate and mild desertification had increased 7% ~ 8%. The area of desertification had kept stationary from 1983 through1993. At the beginning of the 21~(st) century,the area of desertification reached 96. 11 ×10~3 km~2,which was calculated from the remote sensing data interpretation in 2000. It was accounting for 90. 41% of the total land area,of which the area of heavy desertification and moderate-mild desertification were,respectively,157. 6 ×10~3 km~2 and74. 2 ×10~3 km~2. The area of desertification reached 953. 1 ×10~3 km~2 in 2014,which had shrunk 1. 24% as compared with that in 2000,while heavy moderate-mild desertification area had changed constantly. According to the deeply observing and searching of predecessors,the change of desertification should be ascribe to human activities and natural factors.