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黑河流域典型区土地利用格局变化及影响比较

文献类型:期刊论文

作者王根绪
刊名地理学报
出版日期2006
卷号61期号:4页码:339-348
关键词土地利用空间格局 土地利用变化特征 绿洲稳定性 水资源空间分配 影响评价 对比分析 黑河流域
其他题名Comparison of Spatial Diversity of Land Use Changes and the Inpacts on Two Typical Areas of Heihe River Basin
通讯作者王根绪
合作状况其它
中文摘要在黑河流域选择两个典型区域进行土地利用变化的空间差异与影响的对比研究.利用20世纪60年代以来的三期遥感数据.通过定量表征指标体系.对比分析了两个区域不同空间土地利用格局变化和土地利用类型变化的分异特征.定量评价了土地利用变化对不同区域绿洲系统的稳定性和水资源空间分配的影响。结果表明:过去35年来两个对比区域不同的土地利用格局变化.形成了显著的绿洲沿河流的溯源迁移和以基于下游老绿洲的渐进性绿洲外围拓展两种不同模式.前者导致流域水资源过度集中消耗于流域上游和源区.中下游水资源可利用量急剧减少.在35年间下游荒漠化土地增加了85.1%.灌溉绿洲萎缩了25.5%:后者则不同,水资源利用量的空间配置在区域下游具有小幅度集中.区域绿洲系统整体的稳定性较高。从流域整体的水土相互关系出发.合理规划干旱内陆流域土地利用模式和空间土地资源配置.对于促进流域整体的可持续发展具有重要意义.
英文摘要Land use changes have a great impact on water resources and environment of arid
inland regions.In the Heihe river basin,two typical areas were chosen to compare their
spatial diversities of land use change and their impacts.Based on three periods of remote
sensing data since the 1 960s an d the quantitative index system.the characteristics of 1an d use
paRem changes and land use type chan ges were compared and an alyzed betw een the tw o
areas,and the impact of land use changes on the stability of oasis system and spatial
distribution of water resources in diferent areas were quantitatively assessed. The results
indicate that diferent land use paRem changes have led to the formation of tw o diferent
modes in the last 35 years.One is obvious shifting of oasis to headwater and upstream
regions;the other IS progressive prolongation around downstream old oasis periphery. Th e
former lcads to excessive centralized consumption of water resources in the upstream and
headw~er regions,an d rapid decrease of the available water resources in the mid. and
down ·stream s.W ithin the 35 years,the desertified land at down stream increased bv 85. 1%
an d irrigated oases shrank by 25.5% ;however,the latter is diferent.
Th e spatial distribution
of water resource utilization centralized in the down stream regions with a small ran ge. an d the
stability of the whole oasis system was quite high. In view of the relationship betw een water
an d lan d of the whole fiver basin,reasonable planning of land use mode and land resource
distribution in an arid inlan d river basin is very meaningful to the improvement of the
sustainable development of the whole river basin.
分类号F301.24
资助信息国家自然科学基金项目(40171002);中国科学院"百人计划(2004)"项目~~
语种中文
公开日期2010-08-16
源URL[http://ir.imde.ac.cn/handle/131551/1431]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
推荐引用方式
GB/T 7714
王根绪. 黑河流域典型区土地利用格局变化及影响比较[J]. 地理学报,2006,61(4):339-348.
APA 王根绪.(2006).黑河流域典型区土地利用格局变化及影响比较.地理学报,61(4),339-348.
MLA 王根绪."黑河流域典型区土地利用格局变化及影响比较".地理学报 61.4(2006):339-348.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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