【摘要】 土壤有机质光谱响应特性研究是光学遥感定量化的基础性研究。研究利用 VF991地物光谱测量仪对八个不同环境条件下形成的土壤样本剖面上的各个土层进行光谱测量 ,得到各个土层的反射率光谱曲线 ,并测出各个土层的有机质含量。通过研究土壤的有机质含量与土壤反射光谱间的相关性分析 ,发现有机质含量与土壤光谱在紫外区的 376 .795 nm波段、可见光区的 6 16 .5 0 6 nm波段和近红外区的 72 4 .0 975 nm波段附近有较好的负相关性更多还原

【Abstract】 This study presents a characteristics analysis to the response of soil spectrum result from organic material . Eight kinds of soil samples were collected including variations in conditions. The reflectivity spectral line of each soil layer in soil samples were measured with the VF991 Ground-body Spectrograph in the 372.1 nm～1059.75 nm range with approximately 1.35nm, and the content of organic material of each soil layer were measured using Qiu ling technique. The study for soil spectrum and spectral characteristics is one of important basic methods in quantitative remote sensing. Spectrum data and the content of organic material are firstly analyzed using different techniques, and in the end the relationship was studied between the content of organic material and soil spectrum. Result shows that the content of organic material is strongly correlative with absorption features of soil spectrum in ultraviolet wave band (around 376.795 nm), visible radiation wave band (around 616.506 nm ) , and infra red wave band (around 724.0975 nm).更多还原