Estimating ecological indicators of karst rocky desertification by linear spectral unmixing method

نویسندگان

  • Xia Zhang
  • Kun Shang
  • Yi Cen
  • Tong Shuai
  • Yanli Sun
چکیده

Coverage rates of vegetation and exposed bedrock are two key indicators of karst rocky desertification. In this study, the abundances of vegetation and exposed rock were retrieved from a hyperspectral Hyperion image using linear spectral unmixing method. The results were verified using the spectral indices of karst rocky desertification (KRDSI) and an integrated LAI spectral index: modified chlorophyll absorption ratio index (MCARI2). The abundances showed significant linear correlations with KRDSI and MCARI2. The

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عنوان ژورنال:
  • Int. J. Applied Earth Observation and Geoinformation

دوره 31  شماره 

صفحات  -

تاریخ انتشار 2014