Based on remote sensing classification system of China land use/cover change, we used four phases Landsat remote sensing images of middle and late 1970s, late 1980s, 2004 and 2008 for the process analysis of nature reserve land cover change in Three River’s Source Regions during the recent 30 years. The results showed that in total, grassland area experienced a process of increase-decrease-increase during the recent 30 year. From middle and late 1970s to 2004, decline of grassland coverage was the main appearance of land cover change, and land cover status had a deterioration trend. During the recent 4 years, grassland deteriorated trend alleviated. All zones had ameliorated trend of land cover change and core and buffer zones were more significant than experimental zone, which may related with the implementation of Planning.
ZHAO Zhi-ping, LIU Ji-yuan, SHAO Quan-qin
. Characteristic Analysis of Land Cover Change in Nature Reserve of Three River’s Source Regions[J]. SCIENTIA GEOGRAPHICA SINICA, 2010
, 30(3)
: 415
-420
.
DOI: 10.13249/j.cnki.sgs.2010.03.415
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