干旱区生态环境知识资源中心(Arid): 基于GIS的黑河流域生态环境敏感性评价与分区

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	基于GIS的黑河流域生态环境敏感性评价与分区
其他题名	GIS-based Assessment and Division on Eco-environmental Sensitivity in the Heihe River Basin
	潘竟虎 1; 董晓峰 2
ISSN	1000-3037
出版年	2006
卷号	21 期号:2 页码:267-273
中文摘要	针对黑河流域存在的主要生态环境问题，利用调查资料和相关研究成果，在GIS支持下，对流域生态环境敏感性进行综合评价，明确了生态环境敏感性分布规律及其地域差异，在此基础上，对生态环境功能区进行划分，并对各区存在的主要生态问题提出整治对策，为流域生态环境建设和保护规划方案的制定提供依据。研究结果表明：①黑河流域的生态环境敏感性区域分布比较广泛，其中土壤侵蚀高度敏感区占2．05％，主要集中在祁连山区；②沙漠化极敏感区面积占37.06％，主要集中在流域下游额济纳攘和金塔县；③土壤盐渍化敏感区主要集中在流域中部绿洲，对于这些敏感区域的保护。应该作为生态环境保护和建设的核心。依据评价结果，流域划分为7个生态功能区.
英文摘要	Eco-environmental sensitivity is defined as the possibility of formation and generation of eco-environmental problems in a given region influenced by natural factors.The Heihe River Basin,located in the northwestern China,is a typical arid and semiarid area.In recent years,the original ecological balance has been seriously destroyed in this basin,many environmental problems such as land desertification,soil salinization or alkalization and soil and water loss, occurred along with rapid population growth,development of industrial and agricultural production and increase of water consumption.For regional social and economic sustainable development,strengthening eco-system management at basin scale is a prerequisite.One of the most effective methods is to identify the critical or sensitive area which is easy to be degraded. Based on investigation and previous studies,integrated assessments of sensitivity to water erosion,desertification,salinization and its spatial distribution in the Heihe River Basin have been done by GIS spatial analysis method,and the spatial distribution of eco-system sensitivity and service importance were characterized.The ecological function regionalization is worked out according to the assessment results ,and the ecological protection and construction measures for each ecological region are also recommended. The results show that：（1）In the total area of sensitive or more sensitive region,the more sensitive region to soil erosion makes up 2.05% of the total area of the basin,mainly in Qilian mountain region, and there is no most sensitive region to soil erosion.The most sensitive region to desertification covers 37.06%, mainly in Ejina County, the lower reaches of the Heihe River, and the more sensitive region to desertification covers 5.59% ,mainly at the northwest edge of Badanjilin Desert and the middle-lower reaches of the Heihe River.The most sensitive region to salinisation makes up 0.37% ,mainly locating in the oasis of the middle reaches of the river.And the more sensitive region to salinisation accounts for 0.56% of the total area,mainly in the west and the north of Ejina County. （2）The sensitivity distributed regions are the same regions suffering from eco-environmental problems,and these regions should be taken as priority area for ecological protection and constru-ction. （3）Based on the above assessment,seven eco-functional zones were subdivided.They are：Mazong Mountain Hill Eco-region,High Torso Plain and Gobi Eco-region,Ruo River Delta Eco-region,Erosion-protected North Corridor Shrub Eco-region, Farmland-protected Fluvial Plain Eco-region,Low Mountain Meadow and Dry Farmland Ecoregion, and Qilian Mountain forest and Meadow Eco-region.
中文关键词	生态环境敏感性 ; 生态分区 ; 黑河流域 ; 空间分析
英文关键词	GIS eco-environmental sensitivity ecological regionalization Heihe River Basin spatial analysis GIS
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2331673
来源机构	兰州大学 ; 西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220597
作者单位	1.西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国; 2.兰州大学资源环境学院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	潘竟虎,董晓峰. 基于GIS的黑河流域生态环境敏感性评价与分区[J]. 兰州大学, 西北师范大学,2006,21(2):267-273.
APA	潘竟虎,&董晓峰.(2006).基于GIS的黑河流域生态环境敏感性评价与分区.,21(2),267-273.
MLA	潘竟虎,et al."基于GIS的黑河流域生态环境敏感性评价与分区".21.2(2006):267-273.

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