地理学报 ›› 2014, Vol. 69 ›› Issue (1): 31-41.doi: 10.11821/dlxb201401003

• 土地利用与土地覆盖 • 上一篇    下一篇

黄河中游多沙粗沙区(渭河段)土地利用对植被盖度的影响

杨胜天1, 周旭1,2, 刘晓燕3, 刘昌明4,5, 罗娅1,6, 吴琳娜1,7, 赵海根1   

  1. 1. 北京师范大学地理学与遥感科学学院, 遥感科学国家重点实验室, 环境遥感与数字城市北京市重点实验室, 北京100875;
    2. 西华师范大学国土资源学院, 四川南充637009;
    3. 黄河水利委员会, 郑州450003;
    4. 北京师范大学水科学研究院, 北京100875;
    5. 中国科学院陆地水循环与地表过程重点实验室, 北京100101;
    6. 贵州师范大学地理与环境科学学院, 贵阳550001;
    7. 贵州大学资源与环境工程学院, 贵阳550025
  • 收稿日期:2013-10-06 修回日期:2013-11-05 出版日期:2014-01-20 发布日期:2014-03-21
  • 作者简介:杨胜天(1965-),男,贵州贵阳人,教授,博士生导师,主要从事水资源与水环境遥感研究。E-mail:yangshengtian@bnu.edu.cn
  • 基金资助:
    国家“十二五”科技支撑计划课题(2012BAB02B00);水利部公益项目(201101037);中央高校基本科研业务费专项

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

YANG Shengtian1, ZHOU Xu1,2, LIU Xiaoyan3, LIU Changming4,5, LUO Ya1,6, WU Linna1,7, ZHAO Haigen1   

  1. 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:2014-03-21
  • 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

摘要: 针对黄河中游多沙粗沙区植被变化及其影响因素研究薄弱环节,利用MSS、TM和环境星CCD等多源遥感数据,运用相邻图幅递进回归分析消除时相差异后反演植被盖度,人机交互式解译土地利用,研究黄河中游多沙粗沙区(渭河段) 1978-2010 年间3 个时期土地利用对植被盖度的影响。结果表明:(1) 研究区内植被盖度已显著恢复,植被变化有较强的波动性和异质性;(2) 土地利用已发生明显变化,土地利用变化有较强的时空分异特征;(3) 土地利用转型和渐变均有利于促进植被盖度恢复,但土地利用转型对植被恢复的贡献更突出;(4) 土地利用对植被盖度的影响有一定的复杂性和差异性,区域植被持续恢复迫切需要有针对性的土地利用转型与生态系统优化策略。

关键词: 土地利用, 变化, 黄河中游多沙粗沙区, 植被盖度

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