[Optimizing management on degraded grassland in Xilin River Basin based on ecological risk assessment].
By the methods of remote sensing (RS) and geographic information system (GIS), and based on the estimations of degradation degree, risk degree and easy-restoration degree of degraded grasslands, an ecological management index (EMI) model of grassland was established to approach the practical ways of optimizing management of degraded grassland. A case study in the Xilin River Basin of Inner Mongolia showed that this model could quantitatively analyze the degradation degree, risk degree and easy-restoration degree of the grasslands under different optimizing management levels, which was of significance for applying rational measures with pertinence, and beneficial to the optimal allocation of resources during the management of degraded grassland. The EMI model could integrate most concerned information, which made it applicable widely.
Gu
Xiao-he
XH
Key Laboratory of Environmental Change and Natural Disaster of Education Ministry, College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China. guxiaohe@ires.cn
He
Chun-yang
CY
Pan
Yao-zhong
YZ
Li
Xiao-bing
XB
Zhu
Wen-quan
WQ
Zhu
Xiu-fang
XF
D002681:China; D003247:Conservation of Natural Resources / Q000379:methods; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D040362:Geographic Information Systems; D006109:Poaceae / Q000254:growth & development*; D018570:Risk Assessment; D045483:Rivers