地理学报 ›› 2014, Vol. 69 ›› Issue (1): 42-53.doi: 10.11821/dlxb201401004

• 土地利用与土地覆盖 • 上一篇    下一篇

黄河河口镇—潼关区间1998-2010年土地利用变化特征

罗娅1,2, 杨胜天1, 刘晓燕3, 刘昌明4,5, 宋文龙1,6, 董国涛7, 赵海根1, 娄和震1   

  1. 1. 北京师范大学地理学与遥感科学学院, 北京100875;
    2. 贵州师范大学地理与环境科学学院, 贵阳550001;
    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. 中国水利水电科学研究院, 北京100044;
    7. 黄河水利科学研究院, 郑州450003
  • 收稿日期:2013-09-25 修回日期:2013-10-30 出版日期:2014-01-20 发布日期:2014-03-21
  • 作者简介:罗娅(1979-),女,副教授。主要研究方向:土地利用与水土流失治理。E-mail:luoya2002@163.com
  • 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

Land use change in the reach from Hekouzhen to Tongguan of the Yellow River during 1998-2010

LUO Ya1,2, YANG Shengtian1, LIU Xiaoyan3, LIU Changming4,5, SONG Wenlong1,6, DONG Guotao7, ZHAO Haigen1, LOU Hezhen1   

  1. 1. School of Geography, Beijing Normal University, Beijing 100875, China;
    2. School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, 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. China Institute of Water Resources and Hydropower Research, Beijing 100044, China;
    7. Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China
  • Received:2013-09-25 Revised:2013-10-30 Online:2014-01-20 Published:2014-03-21
  • Contact: 杨胜天(1965-),男,教授。主要研究方向:水资源与水环境遥感。E-mail:yangshengtian@bnu.edu.cn E-mail:yangshengtian@bnu.edu.cn
  • Supported by:
    National Key Technologies R&D Program, No.2012BAB02B00; Public Welfare Fund of the Ministry of Water Resources of China, No.201101037; The Fundamental Research Funds for the Central Universities

摘要: 运用土地利用变化重要性指数(Ci)、土地利用变化面积比重(D)和林草植被变化指数(I)等3 个指标,基于干湿条件、地貌类型与坡度坡向,由宏观到微观,分析黄河河口镇—潼关区间1998-2010 年土地利用变化的主要类型、变化的剧烈程度以及林草植被变化程度,以期为评价退耕还林(还草) 政策在黄河河口镇—潼关区间的实施效果提供参考。结果表明:① 1998-2010 年,土地利用变化面积占总面积的19.19%,高覆盖度草地、有林地、其它林地面积明显增加,低覆盖度草地、农用地面积明显减少,土地利用变化十分显著;② 空间上,土地利用变化主要发生在35°~38°N的区域,包括黄河以西的泾河支流马莲河流域、北洛河流域、延河流域、清涧河流域、无定河上中游区,以及黄河以东的沿黄区域;③ 土地利用变化过程中,低覆盖度草地转化为中覆盖度草地、中覆盖度草地转化为高覆盖度草地、农用地转化为其它林地、灌木林地转化为有林地是土地变化的主要类型;④ 土地利用变化呈现明显的干湿、地貌和坡度差异,但无明显的坡向差异。

关键词: 土地利用变化, 地貌, 坡向, 黄河河口镇—潼关区间, 坡度, 干湿

Abstract: In order to evaluate the effect of Grain for Green Policy in the reach from Hekouzhen to Tongguan of the Yellow River, based on dryness/wetness, geomorphic type, slope gradient and aspect, from macroscopic to microcosmic, three indicators, including (a) a land use change significance index, (b) a land use change proportion (c) a vegetation change index, are used to characterize the primary transformation types, the intensity of land use changes, and the degree of vegetation restoration in the period 1998-2010. The results show that: (1) The area of land use change accounted for 19.19% of the study area. High coverage grassland, forest, and other woodland increased significantly, while low coverage grassland, farmland decreased markedly. (2) Spatially, land use change was found primarily west of the Yellow River, between 35 and 38 degrees north latitude, including Malian River basin, Beiluo River basin, Yanhe River basin. (3) The transformation types, including low coverage grassland to moderate coverage grassland, moderate coverage grassland to high coverage grassland, farmland to other woodland, shrub to forest were the primary types resulting from land use change. (4) The effect of dryness/wetness, geomorphic type and slope gradient on land use change was significant, but that of aspect on land use change was not so clear.

Key words: slope gradient, aspect, dryness/wetness, the reach from Hekouzhen to Tongguan of the Yellow River, geomorphic type, land use change