Discussion on Standards of Desertified Land Control Degree
沙漠化土地治理程度等级指标的探讨

Studing on the evaluating standards of desertification control aims to grade the degree of desertified land control level,to quantitatively and qualitatively certified the desertified soil improvement,and to provide the indexes for scientific desertification control and evaluation,rational using and monitor the change of desertification land.At the same time,studing on the evaluating standards is also the importance part for building the technical system of combating desertification.This paper,taking vegetation cover rate as dominant factor,the edificator species' living form and configuration pattern as well as the bio-crust and soil development as supplementary indexes,has set up the standards for grading the desertified land control degree of different climatic regions based on our field investigation and relative theoretical research achievements.The evaluating system has reflected the principles of regionalization,irreplaceable and easy for operating,which can guide the desertification dynamics monitoring and be used for evaluating the desertification controlling effect of our country.