干旱区生态环境知识资源中心(Arid): 基于景观格局的区域沙漠化程度评价模型构建

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	基于景观格局的区域沙漠化程度评价模型构建
其他题名	Model construction of regional desertification degree assessment based on landscape pattern analysis
	康相武 1; 马欣 2; 吴绍洪 2
ISSN	1000-0585
出版年	2007
卷号	26 期号:2 页码:297-304
中文摘要	区域沙漠化程度评价对于防沙治沙具有重要意义.本研究在当前区域沙漠化程度评价方法中补充了在不同类型沙漠化土地空间分布的生态意义及其对区域沙漠化整体程度的影响因子,使其能评价各类沙漠化土地面积相等时几个区域的沙漠化程度.本文应用景观生态学原理,通过对空间分布差异而引起生态过程不同的理论分析,筛选出表征沙漠化土地空间分布生态意义的景观格局指数--聚集度,结合遥感与地理信息系统技术构建出区域沙漠化程度评价模型,并应用该模型对内蒙古浑善达克沙地六旗县的区域沙漠化程度进行了评价.结果对该各旗县不同时期的沙漠化程度的区分度较好,按沙漠化程度的不同,提出对正蓝旗的沙漠化要加强治理,对沽源县和太仆寺旗的沙漠化应采取预防措施的区域沙漠化防治对策.
英文摘要	The assessment on regional desertification degree is very important to prevent and control desertification. However, there are some problems about the assessment method of regional desertification degree. For example, theecological meaning of spatial distribution of different types desertified land was ignored. And the influence of spatial distribution of different types of desertified land on overall regional desertification degree was neglected. In addition, while the area of every type of desertified land in the regions assessed is equal the assessment model fails to work. Therefore, the factor of ecological meaning of land spatial distribution on different types of sand and the factor affected the regional desertification degree should be added to the regional desertification assessment methods. To solve these problems, we selected the landscape pattern index and aggregation index according to landscape ecology principle, and applied them to construct regional desertification degree assessment model through RS and GIS technology. Finally the regional desertification degree in the six counties of Hunshandake Sandy Land was assessed by applying the model. The result suggested that this method can distinguish the desertification degree in different periods. Therefore, according to the assessment result, Zhenglanqi should enhance the control of desertification,and Guyuan county and Taibus should prevent regional desertification.
中文关键词	区域沙漠化程度 ; 评价模型 ; 景观生态
英文关键词	regional desertification degree assessment model landscape ecology
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:2721269
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220763
作者单位	1.中国科学技术信息研究所, 北京 100038, 中国; 2.中国科学院地理科学与资源研究所, 北京 100101, 中国
推荐引用方式 GB/T 7714	康相武,马欣,吴绍洪. 基于景观格局的区域沙漠化程度评价模型构建[J]. 中国科学院地理科学与资源研究所,2007,26(2):297-304.
APA	康相武,马欣,&吴绍洪.(2007).基于景观格局的区域沙漠化程度评价模型构建.,26(2),297-304.
MLA	康相武,et al."基于景观格局的区域沙漠化程度评价模型构建".26.2(2007):297-304.