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Volume 32 Issue 1
Mar.  2013
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Article Navigation >  CARSOLOGICA SINICA  > 2013  >  32(1): 95-99
YANG Qi yong, JIANG Zhong cheng, LI Hui, Xiao Tu an. Assessment of karst rocky desertification based on Google Earth in the Guohua ecologic demonstration plot[J]. CARSOLOGICA SINICA, 2013, 32(1): 95-99. doi: 10.3969/j.issn.1001-4810.2013.01.014
Citation: YANG Qi yong, JIANG Zhong cheng, LI Hui, Xiao Tu an. Assessment of karst rocky desertification based on Google Earth in the Guohua ecologic demonstration plot[J]. CARSOLOGICA SINICA, 2013, 32(1): 95-99. doi: 10.3969/j.issn.1001-4810.2013.01.014
shu

Assessment of karst rocky desertification based on Google Earth in the Guohua ecologic demonstration plot

doi: 10.3969/j.issn.1001-4810.2013.01.014
  • 1.

    Institute of Karst Geology, CAGS/Karst Dynamics Laboratory,MLR & GZAR

  • 2.

    Institute of Karst Geology, CAGS/Karst Dynamics Laboratory,MLR & GZAR；College of environment and resource, Guangxi Normal University

  • Received Date: 2012-07-12
  • Publish Date: 2013-03-25
    Abstract
  • Fully mining the free data provided by Google Earth (GE) can effectively compensate for the lack of data available in the study area. Based on GE and GIS technology, the digital elevation model in a typical peak cluster depression area the Guohua ecologic demonstration plot is established in the paper. The rocky desertification in the study area in 2003 years has been assessed with two indicators, the vegetation cover and the slope gradient. The results show that the area of the rocky desertification zone is 5.63 km2 which accounts for up to 64.75 % of all the area. Slight rocky desertification，covering an area of 3.92 km2, is the major rocky desertification type.

     

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