中文摘要：

对新疆8种典型草地形成的不同类型土壤进行了光谱室内采集,以求能够通过包络线消除法和植被覆盖度对不同土壤有机质的含量高低做一个快速判断。运用包络线消除法提取了不同土壤的包络线特征参量,结合地上的植被覆盖度对有机质含量不同的土壤与植被覆盖度之间的关系进行了预测。结果表明,包络线消除后所得到的特征参数中,不同土壤光谱特征值存在差异。吸收深度对吸收面积的影响不显著,吸收峰面积可以用来描述不同土壤有机质含量的高低。建立了吸收峰面积和植被覆盖度之间的模拟方程,其中0-5 cm土层土壤的显著性最高（P〈0.05）。与东北黑土包络线消除的显著性波段范围相比,新疆草地土壤的包络线消除相关性达到0.6以上的波段位置发生了前移现象。

英文摘要：

Eight kinds of major soil types in Xinjiang were studied. The envelope elimination method combining with the ground vegetation coverage was used to extract the characteristic parameter of different soil envelope. The relationship between contents of different soil organic matter and the vegetation coverage was forecasted. The results showed that different soil spectral characteristic values differed. The absorption depth had no significant influence on absorption area. Absorption peak area can be used to describe content of different soil organic matter. Between the simulation equation the absorption peak area and vegetation coverage was established. The significance in 0 to 5 cm soil reached the highest（P〈0.05）. Compared with significant band range eliminated by the northeastern black soil envelope, Xinjiang grassland soil band with the envelope elimination relevance above 0.6 moved forward.