SHEN Huai-fei,HOU Gang,WEI Qing-wei,et al.The Spatial Distribution of Land Use/Land Cover in the Water Supplying Area of the Middle-Route of the South-to-North Water Diversion (Mr-Snwd) Project[J].Research of Soil and Water Conservation,2013,20(06):209-212.
南水北调中线水源区土地利用/覆被空间格局特征分析
- Title:
- The Spatial Distribution of Land Use/Land Cover in the Water Supplying Area of the Middle-Route of the South-to-North Water Diversion (Mr-Snwd) Project
- Keywords:
- land use; spatial pattern; terrain gradient; Middle-Route of the South-to-North Water Diversion Project (MR-SNWD)
- 分类号:
- F301.2;P208
- 摘要:
- 南水北调中线水源区土地利用/覆被空间格局在水平和垂直方向上都具有明显的区域特征。利用DEM数据对研究区土地利用空间格局地形梯度规律进行了讨论分析，研究结果表明：（1）研究区土地利用类型以林地、耕地、草地为主。其中林地面积占水源区土地总面积的76%左右，在水源区中占有绝对优势；（2）2010年水源区整体土地利用程度综合指数为221.19，土地利用程度比较低，人类活动对其的影响总体上较小；（3）各土地利用类型的空间分布随高程和坡度的变化具有显著的特点：受人类活动干扰影响较大的各类耕地、水域和建筑用地主要分布在高程相对较低和坡度相对较小的区域；而受人类活动干扰影响较小的各类林地、草地和未利用地则比较均匀地分布在高程相对较高和坡度较大的区域。
- Abstract:
- There was an obvious spatial difference in spatial patterns of land use in the water resource district of Middle-Route of the South-to-North Water Diversion Project because of the double effects of the terrain conditions and human activities. The spatial pattern of land use in study area was quantitatively analyzed by using DEM data. The results show that: (1) the land use types are mainly forestland, agricultural land and grassland, which shows that the matrix of landscape is forest;(2) the comprehensive index of land use is 221.19 in the water resource district in 2010, and this shows that land use intensity is relatively low in the water resource district with slight human-caused disturbance; (3) the spatial distribution rule of land use with the change of elevation and slope has notable characteristic, the agricultural land, construction land and water body in strongly human-disturbed land use types mainly distribute in lower altitude region and smaller gradient section. The forestland, grassland and unused land in slightly human-disturbed land use types are dispersed in higher altitude region and bigger gradient section equably.
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备注/Memo
收稿日期:2013-04-01;改回日期:2013-05-02。
基金项目:河南省科技攻关重点项目（122102310420）；河南省政府决策研究招标课题（2013B299）；河南省教育厅自然科学研究计划项目（2009B180023）；河南省教育厅科学技术研究重点项目（12B580002）
作者简介:申怀飞(1979-),男,河南淅川人,硕士,讲师,主要从事土地利用空间格局与生态过程研究。E-mail:hfshen329@163.com