介绍了植被、土壤的光谱反射特性；
The spectrum reflection characteristic of the vegetation and soil are introduced.
为此，我们对吉林省主要土壤的反射光谱特性及其影响因素进行了测定。
For this reason, the characters of reflective spectrum and the environmental factors effecting them in some major Jilin soils were measured in the study.
通过野外采样和室内测定，研究了湖南省主要类型土壤反射光谱的剖面变化特性。
We studied reflecting spectral change characteristics in the depth profile of major soils in Hunan province through field sampling and lab analysis.
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