【摘要】 土壤盐渍化是干旱区/半干旱区常见的一种土地退化现象,加强对土壤的盐渍化遥感调查和监测有利于盐渍土壤的改良和利用。高光谱波段众多、光谱信息丰富,在识别和定量演算盐渍土壤盐分含量上具有较大的优势。为了推进高光谱遥感数据在土壤盐渍化监测中的应用,本文以焉耆盆地部分地区为研究区域,通过野外调查以及实地测点,利用便携式光谱仪测量研究区域内不同盐渍程度的土壤光谱,分析土壤光谱曲线与土壤盐渍程度之间的关系,从而为今后的高光谱遥感的盐渍化监测打下基础。更多还原

【Abstract】 Soil salinity is a major cause of land degradation processes in arid regions.It is necessary to monitor and analyses salinity for the ecological restoration.As an important means of salinity survey remote sensing has a good sensitivity.The information about salinity characteristics and distribution can be gotten by the method of remote sensing.This method will speed up salinization improvement and utilization.Hyperspectral data contains spectral and distinction information of soil surface condition.It has potential for evaluate subtle differences.Compared with multi-spectral,hyperspectral date has an enormous advantage.In this paper some part of Yanqi Basin is choscn as study area then field investigation and test are taken.With an analysis of hyperspectral data,distinction of spectral curves are obtained,and the relationship between spectral signature and salinity is analyzed.更多还原