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中文摘要：
针对西北地区典型土壤类型黑垆土和栗钙土光谱特征的分析，利用ASD手扶式光谱辐射仪对21个不同环境条件下形成的土壤样本剖面的各个土层进行光谱测量，得到各土层的反射光谱曲线，并结合各层的有机质含量、氧化铁含量进行相关性分析与回归分析。发现在可见光和近红外波段，有机质对土壤反射率影响最大，呈负相关。氧化铁在900nm左右处与反射率负相关性最强。黑垆土和栗钙土的有机质和氧化铁含量差异较大，导致其光谱特征差异明显，但在特征波段具有一致趋势。
英文摘要：
Spectral characteristics of calcic kastanozem soil and chestnut soil occurring in North-west China were analyzed. Twenty-one kinds of soil samples were collected, including variations in different condi- tions. The reflectivity spectrum curve of each soil layer was measured by the ASD Hand Hold Spectroradi- ometer. The correlation analysis was conduoted based on the organic matter content and ferric oxide con- tent in each soil layer. The organic matter content had a great negative influence on soil reflectance in the visible and near-infrared waveband. Ferric oxide had a negative correlation with soil reflectance around 900nm. Because of great differences in organic matter content and ferric oxide content of calcic kastanozem soil and chestnut soil, the characteristics of two kinds of soil was obviously different, bowever, with the same trend in the special wavebands.
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Fractal characteristics of soil under ecological restoration in the agro-pastoral transition zone of
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