A new approach for mapping of Biological Soil Crusts in semidesert areas with hyperspectral imagery

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• 作者：B. Weber ; C. Olehowski ; T. Knerr ; J. Hill ; K. Deutschewitz ; D.C.J. Wessels ; B. Eitel ; B. Bü ; del
• 关键词：Hyperspectral imagery ; Continuum removal ; Imaging spectrometry ; Biological Soil Crusts ; Southern Africa
• 刊名：Remote Sensing of Environment
• 出版年：2008
• 期刊代码：79_00344257
• 类别：ear
• 出版时间：15 May 2008
• 卷：112
• 期：5
• 页码：2187-2201
• 文件大小：2352 K

摘要

Biological Soil Crusts (BSCs), consisting of cyanobacteria, algae, microfungi, lichens and bryophytes in varying proportions, live within or immediately on top of the uppermost millimeters of soil, where they form a more or less firm aggregation of soil particles and organisms. They mainly occur in soils of arid and semi-arid regions, which cover more than 35%of the earth's land surface and are assumed to play a major role as primary producers, C- and N-sinks and soil stabilizers.