Discussion on grading index of grassland desertification control base on TM Data A case study of aerial seeding in Xianghuang Banner

Studying grading index of grassland desertification control aims to determine the degree of grassland desertification control level, and to provide the indices for scientific desertification control and evaluation, rational utilization and supervision. This paper took Xianghuang Banners aerial seeding project in arid and semiarid region for an example, using vegetation coverage as dominant factor, wind and sand erosion as well as the biological soil crust and soil development as supplementary indexes, set up standard grading of grassland desertification control based on the field investigation and remote sensing image interpreter, providing reference to evaluate grassland desertification control effects and desertification grassland dynamics.