摘要
本文就土壤肥力遥感监测的可能性进行了深入的探讨,根据土壤肥力物质基础特有的光谱特性,提出了土壤黑度值的概念,详细阐述了土壤黑度值与土壤有机质,质地,含水量氧化铁之间的正相关关系和与石英之间的负相关关系,明确了黑度值在遥感上的应用:黑度值大,肥力高—亮度值小;黑度值小,肥力差—亮度值大。在此基础上分析了各种TM数字图像组合关系特点,选定了合适的M数字图像进行多维线性综合相似度分类。
he article discusses the possiblity of remoting monitering for fertility of soil deeply.according to special spectral features of soils,author put forward and new concept of Soil-Darkness-Value,detaily set forth positie relations about Soil-Darkness-Value with organic mater,grains,moisture content,ferric oxide;the negative relation between Soil-Darkness-Vale and quartz,further difines the applying of Soil-Darkness-Value in remoting;the greater the Soil-Darkness-Value (more brightness) is,the richer the soil is;the smaller the Soil-Darkness-Value(more brightness) is,the poorer the soil is.On these basises author compares many TMdigital images and selects the best choices and applys the pluralistic Linear Synthetical Similar Degree to precisely monitor).