The Effect of Climatic Change on Surface Environments in the Typical Region of Horqin Sandy Land
In this paper, the Agura town--the typical region of Horqin sandy land is taken as study area. Using 12 pieces of remote sensing images and climatic data in the recent 20 years, the effect of climatic change on surface environments is analyzed. Climatic factor impact index (CFII) and the ranking of influence degree are proposed to characterize the response sensitive degree. The results show that: In the recent twenty years, surface environment of the study area is in a deterioration. There is a good relationship between surface environment and climatic factor. Various climatic factors influence the surface environment in different way and at different level. The most sensitive factor is relative humidity, followed by precipitation and evaporation. On the whole, water condition is the key factor that governs the surface environment change in arid and semi-arid areas.
Horqin Sandy Landtypical regionsurface environmentclimate changeresponseclimatic factor impact index
NETL
NSTL
万方数据
维普
