西北干旱地区生态退化程度及恢复性研究

Ecological Degradation Degree and Restoration of Northwest Arid Region

对西北干旱地区生态退化程度及恢复性,通过剔除异常值、定量分析、变量控制等方法,运用SPSS、MATLAB等软件,建立了模糊综合评价、灰色关联度综合评价、Logistic等模型,综合分析得到不同人为干扰下生态退化程度(轮牧<过牧<开垦)、生态退化可恢复性及生态退化恢复性影响机制(减少人为干扰或补充人工植被)等结论。

For ecological degradation degree and restoration of northwest arid region,by the methods of eliminating outliers,quantitative analysis,variable control and so on through SPSS and MATLAB software,this project establishes a fuzzy comprehensive evaluation,grey relational comprehensive evaluation,and Logistic model; by comprehensive analysis it draws some conclusions of the ecological degradation degree under different human disturbance（ rotational grazing 〈overgrazing 〈reclamation）,of recoverability of ecological degradation,and of restorative effect mechanism of ecological degradation（ reducing human interference or compensatory and artificial vegetation）.