基于MODIS遥感影像的退牧还草工程监测研究

Study on Project of Withdrawing Graze and Returning to Grassland in Tekesi County Based on MODIS Remote Sensing Data

选取特克斯县为研究区域,以2003年8月和2009年8月的MODIS遥感影像为数据源,结合对应时期的地面调查数据,从植被盖度、植物类组成、地上生物量对特克斯县退牧还草工程的实施效果进行了分析,结果表明,2009年禁牧区和休牧区植被盖度分别比2003年高10～13和6～7个百分点,生物量分别比2003年高2.1%～22.8%和1.8%～13.3%。

Taking the MODIS remote sensing imagine in August 2003and 2009 as the data resource,combining with the ground survey data in the corresponding period,the effects of withdrawing graze and returning to the grassland were analyzed in vegetation cover,vegetal composition and biomass on the ground in Tekesi county.Then,the results were as follows： compared with 2003,the vegetation cover had been improved by 10~13 and 6~7 percentage points in the prohibited graze and leisured graze area in 2009.Compared with August,2003,the biomass on the ground increases by 2.1%-22.8% and 1.8%-13.3% in the prohibited graze and leisured graze area in August 2009.