Vegetation Indices and the Applications in Monitoring Tillage Reverting to Woodland or Grassland Ecosystems
植被指数与退耕还林( 草) 初期的遥感监测应用

By ARC/ INFO AML programming and RS methods,a vectorized Vegetation Indices(VI) database for Yuzhong Monitoring Area in the process of Tillage Reverting to Woodland or Grassland ecosystems was completed,it contains 3 spatial data sets representing the vegetation status of the July-August in 2000,2001 and 2002,as the results of 3 TM imageries.VI's including IDV,NDVI,Greenness of Tasseled Cap were selected to reflect the differences of land covers and changes in the 3 year period.Land covers were categorized into 3: Tillage Reverting lots,land use types and basic classes of forest in the National Nature Protection Region. Comparisons of VI's and analysis on the relations to land cover attributes were approache,,and apprehension of VI's on monitoring Tillage Reverting to Woodland or Grassland ecosystems was discussed.