摘要
土地生态状况评估是土地生态保护与修复的基础,在参考大量文献、与其他地区土地生态状况评估模型、指标选取情况进行对比分析的基础上,从影响土地资源生态的自然因素、经济因素和社会因素三方面选取,构建由土地生态基础准则层、土地生态结构准则层、土地生态退化准则层、土地生态建设准则层四个准则层构成的土地生态状况评估指标体系。并以盐池县为典型区,以村域为研究尺度进行了土地生态状况的精细化评估及分析,为加强生态保护,制订科学合理的生态保护政策和措施提供了依据。
Assessment of land ecological status is the foundation of ecological protection and restoration.On the basis of refer to literature and comparative analysis with the selection of ecological assessment models and indicators in other regions,building the evaluation index system which made up of basic criteria layer,construction criteria layer,degradation criteria layer and construction criteria layer.This paper takes Yanchi as a typical area.The detailed assessment and analysis of the land ecological status are carried out.It provides a basis for strengthen ecological protection and making scientific policies.
作者
孙鸿睿
施永胜
崔树国
SUN Hong-rui;SHI Yong-sheng;CUI Shu-guo(Ningxia Natural Resources Survey Institute,Yinchuan Ningxia 750002,China;Ningxia Land and Resources Geographic Information Center,Yinchuan Ningxia 750002,China)
出处
《河北省科学院学报》
CAS
2019年第4期64-71,共8页
Journal of The Hebei Academy of Sciences
关键词
生态脆弱区
土地生态状况评估
变异系数法
空间分异
Ecologically fragile area
Assessment of land ecological status
Coefficient of variation method
Spatial differentiation
