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Volume 29 Issue 4
Dec.  2010
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Article Navigation >  CARSOLOGICA SINICA  > 2010  >  29(4): 425-433
WANG Xi-zhi, GAN Chun-ying, LIANG Zhao-xiong, GAO Quan-zhou. Regime of vegetation coverage in Lianjiang Watershed in North Guangdong Karst Mountain[J]. CARSOLOGICA SINICA, 2010, 29(4): 425-433. doi: 10.3969/j.issn.1001-4810.2010.04.013
Citation: WANG Xi-zhi, GAN Chun-ying, LIANG Zhao-xiong, GAO Quan-zhou. Regime of vegetation coverage in Lianjiang Watershed in North Guangdong Karst Mountain[J]. CARSOLOGICA SINICA, 2010, 29(4): 425-433. doi: 10.3969/j.issn.1001-4810.2010.04.013
shu

Regime of vegetation coverage in Lianjiang Watershed in North Guangdong Karst Mountain

doi: 10.3969/j.issn.1001-4810.2010.04.013
  • 1.

    Department of Resource and Environment；School of Geography and Planning, Sun Yat-sen University

  • 2.

    Department of Resource and Environment

  • 3.

    School of Geography and Planning, Sun Yat-sen University

  • Received Date: 2010-05-25
  • Publish Date: 2010-12-25
    Abstract
  • The spatial and temporal regimes of the vegetation cover from 2001 to 2010 in the Lianjiang Watershed are analyzed by means of the multi-temporal MODIS-NDVI and GIS and the dimidiate pixel model techniques in this paper. The results show that there is obvious otherness in vegetation covers between the Lianjiang watershed and its sub-streams and between karst and non-karst areas; and the vegetation coverage keeps decreasing in the recent 10 years with the high coverage and medium coverage areas undulating sharply, but the comparatively high or low coverage areas keeping stable. The karst area are mainly composed of high(53.84%), medium(25.59%) and comparatively high(18.54%) vegetation coverage, but comparatively high(48.12%), comparatively high(34.10%) and medium(15.05%) in no-karst area. The vegetation coverage has been clearly decreased in the recent 10 years as a whole and the vegetation coverage decreasing area is 20% more than the increasing area.

     

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