用TM数据估测光学植被盖度的方法

An Estimate Method of Optical Vegetation Coverage Using TM Data

考虑到排除植被对土壤水分遥感干扰、提取土壤水分信息的需要，以及作物估产参量的需要，提出了“光学植被盖度”概念。用数理统计方法求出了有关参数，并建立了光学植被盖度的ＴＭ数据模型。

The vegetation interferes with soil water contents remote sensing.The vegetation in-formation is necessary for estimating the yield of crop and the biomass of grassland;Gener-ally speaking,the vegetation coverage can reflect biomass,but its precision is low becauseit can not reflect not only the canopy density of branches and leaves,but also one on top ofanother.Considering the needs for removing interference of vegetation with soil water contentsremote sensing and extracting soil water information and estimating the yield of crop,toadvance a new conception“Optical Vegetation Coverage”,to calculate its related parameterusing mathematical statistical method and to set up a model for optical vegetation coverageusing TM data.