黄河中游多沙粗沙区（渭河段）土地利用对植被盖度的影响

doi:10.11821/dlxb201401003

Acta Geographica Sinica ›› 2014, Vol. 69 ›› Issue (1): 31-41.doi: 10.11821/dlxb201401003

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Impacts of land use on vegetation coverage in the rich and coarse sediment area of Yellow River Basin

YANG Shengtian¹, ZHOU Xu^1,2, LIU Xiaoyan³, LIU Changming^4,5, LUO Ya^1,6, WU Linna^1,7, ZHAO Haigen¹

1. State Key Laboratory of Remote Sensing Science, School of Geography, Beijing Normal University, Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China;
2. School of Land and Resource, China West Normal University, Nanchong 637009, Sichuan, China;
3. Yellow River Conservancy Commission, Zhengzhou 450003, China;
4. College of Water Science, Beijing Normal University, Beijing 100875, China;
5. Key Laboratory of Land Water Cycle and Surface Process, CAS, at IGSNRR, Beijing 100101, China;
6. School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China;
7. College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China

Received:2013-10-06 Revised:2013-11-05 Online:2014-01-20 Published:2014-01-20
Contact: 刘晓燕（1964-），女，河南永城人，教授级高工，主要从事黄河水沙变化研究。E-mail：liuxiaoyan@yrcc.gov.cn E-mail:liuxiaoyan@yrcc.gov.cn
Supported by:
National Key Technologies R&D Program, No.2012BAB02B00; Public Welfare Foundation of the Ministry of Water Resources of China, No.201101037; The Fundamental Research Funds for the Central Universities

Abstract

Abstract: As a main component of terrestrial ecosystem, vegetation has profound effects on the sharp decrease of water and sediment in the Yellow River Basin. In order to research the effects of land use on vegetation coverage in the typical rich and coarse sediment area (Weihe River), this paper chose MSS, TM and HJ-CCD as data sources, applied adjacent images progressive regression analysis method to eliminate the radiometric difference and retrieved vegetation coverage based on NDVI, and used man-computer interactive method to interpret land use. Some conclusions can be drawn as follows. (1) Vegetation coverage in this area has been significantly restored from 1978 to 2010, but changes in vegetation have strong volatility and heterogeneity. (2) Significant changes can be found in land use, and present unique spatial and temporal characteristics. (3) Both of land use transition and land use gradient are conducive to vegetation restoration, but comparatively speaking, land use transition performs better than land use gradient. (4) Effects of land use on vegetation coverage are complex and diverse, and vegetation restoration in this region urgently needs targeted land use transition and land ecological optimization strategies.

Key words: vegetation coverage, change, rich and coarse sediment area, land use, the middle Yellow River Basin

YANG Shengtian, ZHOU Xu, LIU Xiaoyan, LIU Changming, LUO Ya, WU Linna, ZHAO Haigen. Impacts of land use on vegetation coverage in the rich and coarse sediment area of Yellow River Basin[J].Acta Geographica Sinica, 2014, 69(1): 31-41.

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Impacts of land use on vegetation coverage in the rich and coarse sediment area of Yellow River Basin

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