荒漠化评价指标体系的等级系统研究

Studies on Hierarchical System of Desertification Assessment Index System

回顾了国内外荒漠化评价指标体系研究的现状和存在的问题,提出了我国荒漠化指标体系建立的原则和荒漠化分类评价指标体系的等级系统,按照气候类型、荒漠化外营力、土地利用类型、土壤基质、评价尺度和荒漠化程度的异同,将荒漠化指标体系构建成一个等级系统,从而使任何荒漠化类型在这个等级系统中均能找到合适的位置.

The status quo and the existing problems on desertification assessment index system are reviewed, and the hierarchical system of desertification assessment index in China is proposed in the paper. Based on the similarities and differences of the climatic types, the external forces of desertification, the land use types,soil characteristics, the gauge of assessment and the extents of desertification,the desertification assessment index system in China is arranged to be a hierarchical system. Thus all the desertification types can be embodied in this system.