Abstract
Based on the NOAA AVHRR-NDVI data from 1981 to 2001, the digitalized China Vegetation Map (1:1,000,000), DEM, temperature and precipitation data, and field investigation, the spatial patterns and vertical characteristics of natural vegetation changes and their influencing factors in the Mt. Qomolangma Nature Reserve have been studied. The results show that: (1) There is remarkable spatial difference of natural vegetation changes in the Mt. Qomolangma Nature Reserve and stability is the most common status. There are 5.04% of the whole area being seriously degraded, 13.19% slightly degraded, 26.39% slightly improved, 0.97% significantly improved and 54.41% keeping stable. The seriously and slightly degraded areas, which mostly lie in the south of the reserve, are along the national boundaries. The areas of improved vegetation lie in the north of the reserve and the south side of the Yarlung Zangbo River. The stable areas lie between the improved and degraded areas. Degradation decreases with elevation. (2) Degeneration in the Mt. Qomolangma Nature Reserve mostly affects shrubs, needle-leaved forests and mixed forests. (3) The temperature change affects the natural vegetation changes spatially while the integration of temperature changes, slopes and aspects affects the natural vegetation change along the altitude gradients. (4) It is the overuse of resources that leads to the vegetation degeneration in some parts of the Mt. Qomolangma Nature Reserve.
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Foundation: Supported by the National Basic Research Program of China, No.2005CB422006; Social Commonweal Research Project of Ministry of Science and Technology of China, No.2005DIA3J106; National Natural Science Foundation of China, No.40331006
Author: Zhang Wei (1979–), Ph.D. Candidate, specialized in land-use/land-cover change and physical geography.
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Zhang, W., Zhang, Y., Wang, Z. et al. Vegetation change in the Mt. Qomolangma Nature Reserve from 1981 to 2001. J GEOGR SCI 17, 152–164 (2007). https://doi.org/10.1007/s11442-007-0152-4
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DOI: https://doi.org/10.1007/s11442-007-0152-4