MODIS数据在乌鲁木齐地区植被景观动态监测中的应用

根据EOS／MODIS卫星时次高覆盖面广的特征，选取从4．10月的MODIS晴空资料，对整个乌鲁木齐地区植被景观进行动态监测，利用植被指数最大合成法制作了每月植被指数专题图。为了能够结合物候更好地分析乌鲁木齐地区植被随季节变化趋势以及不同时期植被生长状况，我们还制作了植被景观专题图及其变化评价图。评价图的优势在于能直观地反映植被变化的趋势，并能将变化的程度数字化，还可以根据不同的评价图叠加DEM做相应的分析。为乌鲁木齐地区植被变化研究提供有效的依据。

The Application of MODIS Data to Plant View Dynamic Monitoring in Urumqi

According to the high time level detecion and covering field wide of EOS/ MODIS satellite, selecting clear sky MODIS data from April to October, a plant view of whole region of Urumqi was monitored. Utilizing NDVI MVC charts the monthly NDVI variety thematic map. For analyzing plant changing trend with season and growing circumstance at different period consulting phenophase, the NDVI variety thematic map and assessment map were charted. The advantage of assessment map involoves reflecting directly the trend of plants change, can obtain digital change, and can also add the DEM to do the homologous analysis according to the different assessment map. This can provide the valid basis for investigating plant change of the region of Urumqi.