[1]SHI Yunjie,CAI Kui,WU Wenchun,et al.Research on Land Use Distribution Based on Topographic Differentiation-A Case Study of Qomolangma National Nature Reserve[J].Research of Soil and Water Conservation,2021,28(02):394-400.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
394-400
Column:
Public date:
2021-02-06
- Title:
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Research on Land Use Distribution Based on Topographic Differentiation-A Case Study of Qomolangma National Nature Reserve
- Author(s):
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SHI Yunjie1, CAI Kui2, WU Wenchun2, XU Yanan1, LI Keyu1, LHABA Cering3, GONG Ziling
4
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(1.School of Earth Sciences, Yunnan University, Kunming 650500, China; 2.School of Economics, Yunnan University, Kunming 650500, China; 3.Administration of Qomolangma National Nature Reserve, Shigatse, Tibet 857000, China; 4.Snowleopard Conservation Center, Shigatse, Tibet 857000, China)
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- Keywords:
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land use; topographic differentiation; terrain niche; Qomolangma National Nature Reserve
- CLC:
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F301.24
- DOI:
-
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- Abstract:
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In order to coordinate land use and ecological protection in areas with remarkable topographic characteristics, the Qomolangma National Nature Reserve was taken as a case, the land use distribution indexes in regard of elevation, slope, and terrain niche in the study area were analyzed by using DEM and Landsat OLI data. Meanwhile, the vertical zonation of land use in the study area was constructed for further identifying the characteristics and patterns of land use distribution in 2017 based on the differentiation of topographic features. The results are demonstrated as follows. The distribution of land types changing showed obvious vertical belts. The dominant land types from low elevation to high elevation were forestland, cultivated land, construction land—cultivated land, water, construction land—grassland, water, bare land—grasslands, bare land, glaciers and permanent snow cover—glaciers and permanent snow cover; the distribution of land types with different slope showed complex distribution patterns. As the slope gradient increases, it presents combining patterns of cultivated land, water, construction land—cultivated land, grassland, bare land, construction land—cultivated land, grassland, woodland, bare land, glaciers and permanent snow cover, construction land—grassland, woodland, bare land, glacier and permanent snow cover—grassland, woodland, glacier and permanent snow cover; the distribution of land types presents gradability at various terrain niches. As the terrain niche gradient increases, the major distribution patterns of the dominant land types are water—cultivated land, construction land—cultivated land, grassland, bare land—woodland, grassland, glaciers and permanent snow cover—woodland, glaciers and permanent snow cover. The land use in the study area is greatly affected by topographical factors, and the natural land type is dominant at different topographic levels, and the distribution pattern is relatively stable. However, plateau land-use activities also have the profound impact on the formation of the land use structure.