Arid
Differentiating biological soil crusts in a sandy arid ecosystem based on multi- and hyperspectral remote sensing data
Hill, J; Udelhoven, T; Schutt, B; Yair, A
通讯作者Hill, J
会议名称1st EARSeL Workshop on Imaging Spectroscopy
会议日期OCT 06-08, 1998
会议地点ZURICH, SWITZERLAND
英文摘要

In many dryland ecosystems biological crusts are dominating the soil surface. The ecological importance of these crusts is related to their resistance against erosion caused by wind or surface runoff, and to the protection of infiltrated rain water against excessive evaporation. This study demonstrates that optical remote sensing systems provide a good potential to assess the existence of biological soil crusts and to differentiate various types of crusts, thereby providing important information on areas of stability and disturbance in arid ecosystems. DAIS hyperspectral data acquired in August 1997 permit a thorough analysis of the reflectance signal determined by mixtures of vascular desert plants and biological crusts developed on bright background substrates. It is expected that this will resolve ambiguities about understanding the nature of the sharp contrast along the Israeli-Egyptian border observed from space.


英文关键词biological soil crusts spectral unmixing crust differentiation
来源出版物1ST EARSEL WORKSHOP ON IMAGING SPECTROSCOPY
出版年1998
页码427-+
ISBN2-908885-22-0
出版者EUROPEAN ASSOC REMOTE SENSING LABORATORIES
类型Proceedings Paper
语种英语
国家Germany
收录类别CPCI-S
WOS记录号WOS:000166270600047
WOS关键词WESTERN NEGEV DESERT ; ISRAEL ; REFLECTANCE
WOS类目Remote Sensing ; Spectroscopy
WOS研究方向Remote Sensing ; Spectroscopy
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/292097
作者单位(1)Univ Trier, Remote Sensing Dept, FEUT, D-54286 Trier, Germany
推荐引用方式
GB/T 7714
Hill, J,Udelhoven, T,Schutt, B,et al. Differentiating biological soil crusts in a sandy arid ecosystem based on multi- and hyperspectral remote sensing data[C]:EUROPEAN ASSOC REMOTE SENSING LABORATORIES,1998:427-+.
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