【摘要】 沙漠化土地治理等级评价指标研究就是对沙漠化土地治理程度分等定级,进行质与量的界定,为科学治理、评价、合理利用和监测提供标准,同时,也是建立防沙治沙技术体系的重要组成部分。本文结合野外调查和有关的理论研究成果,以植被覆盖率为主导因素,以主要建群种的生活型、结构配置、生物结皮和土壤发育等作为辅助性指标,分别制定了我国不同气候区沙漠化土地治理程度指标。体现了指标的区域性、不可替代性和可操作性原则,对评价我国防沙治沙成果和监测沙漠化土地动态具有指导作用。更多还原

【Abstract】 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.更多还原