摘要
草地退化是草地生态学和草地经营学中倍受关注的问题。在已有研究成果和笔者的研究体会的基础上总结了草地退化中的几组重要概念,包括生态退化与草场退化、植被退化与土壤退化、结构退化与功能退化、绝对退化与相对退化、参照系统与退化程度以及草地退化小尺度定位研究与大尺度空间格局研究,对其进行辨析,同时指出这些概念的划分在草地退化理论与实践研究中的重要意义。
Grassland degradation is a focus in grassland ecology and grassland management. This paper summarizes several important concept groups related to grassland degradation on the basis of former study results and the author＇s research experience, including ecological degradation and pasture degradation, vegetation degradation and soil degradation, structure degradation and function degradation, absolute degradation and related degradation, reference system and degradation degree, small scale stated study and large scale spatial pattern study on grassland degradation. They are analyzed and the paper points out the guiding significance of the concepts of differentiation on degraded grassland restoration.
出处
《草业学报》
CSCD
2008年第1期93-99,共7页
Acta Prataculturae Sinica
基金
国家自然科学基金面上项目(40571057)
“973”项目(2007CB106807)资助
关键词
草地退化
概念辨析
恢复重建
grassland degradation
concept differentiation
restoration
