signature=3cabc1e7514fcfec87143ff7250d1cf3,Mineralogical and textural characterisation of soils usin...

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研究利用热红外光谱技术，探讨了澳大利亚西北昆士兰州地区土壤中矿物质含量与粒径分布、黏土与石英含量间的关联。通过光散射特性，区分了富含细黏土的土壤与以粗石英为主的沙质土壤，同时也部分区分了富含硅质的砂质土壤。结果显示，热红外光谱为评估土壤矿物组成和质地提供了潜力。

摘要：

The ability of thermal infrared (TIR) spectroscopy to characterise mineral and textural content was evaluated for soil samples collected in the semi-arid environment of north-western Queensland, Australia. Grain size analysis and separation of clay, silt and sand sized soil fractions were undertaken to establish the relationship between quartz and clay emissivity signatures, and soil texture. Spectral band parameters, based on thermal infrared specular and volume scattering features, were found to discriminate fine clay mineral–rich soil from mostly coarser quartz-rich sandy soil, and to a lesser extent, from the silty quartz-rich soil. This study found that there was the potential for evaluating soil mineral and texture content using TIR spectroscopy.

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