干旱区生态环境知识资源中心(Arid): 绿洲景观空间邻接特征与生态安全分析

Arid

	绿洲景观空间邻接特征与生态安全分析
其他题名	Spatial neighboring characteristics among patch types in oasis and its ecological security
	角媛梅; 肖笃宁
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2004
卷号	15 期号:1 页码:31-35
中文摘要	以金塔绿洲为例,运用ArcView3.0a计算了绿洲景观类型与沙地和盐碱沼泽地的空间邻接长度和数目比例,利用地理缓冲区分析方法计算了沙地和盐碱沼泽地对绿洲景观面积的影响,提出了绿洲生态安全受胁程度的计算方法.结果表明,绿洲景观类型与沙地和盐碱沼泽地的空间邻接边长和数目的差异较大;受沙地和盐碱沼泽地影响的面积在景观类型中也存在差异;草地和耕地与沙地的邻接边长和数目较大,受沙漠化的威胁比较重,而林地和耕地受盐渍化的威胁比较严重;基于景观类型空间邻接的生态安全评价分析可以初步反映绿洲景观受沙漠化和盐渍化的威胁程度.
英文摘要	In this paper, the spatial neighboring length and number between oasis types and desert or salina - marsh in the Jinta Oasis located in the arid Heihe River Basin of Northwest China were calculated by using ArcView3.0a and buffer zone analysis methods, and the threatening degree of oasis ecological security was discussed. The results indicated that it was different in neighboring length and number between oasis types and desert or salina-marsh, and the influencing area by desert and salina-marsh patches was also different. Grassland and farmland had more neighboring length and numbers with desert or salina-marsh patches, and impacted by desertification seriously. Forest and farmland had more length and numbers adjacent to salina - marsh, and influenced by salinization severely. The assessment of ecological security based on spatial analysis could reveal the threatening degree of oa-sis by desertification and salinizalion.
中文关键词	空间邻接特征分析 ; 绿洲 ; 生态安全评价 ; 金塔县
英文关键词	Spatial neighboring characteristics Oasis Ecological security Jinta County
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:1505585
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205614
作者单位	中国科学院寒区旱区环境与工程研究所, 冻土工程国家重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	角媛梅,肖笃宁. 绿洲景观空间邻接特征与生态安全分析[J]. 中国科学院西北生态环境资源研究院,2004,15(1):31-35.
APA	角媛梅,&肖笃宁.(2004).绿洲景观空间邻接特征与生态安全分析.应用生态学报,15(1),31-35.
MLA	角媛梅,et al."绿洲景观空间邻接特征与生态安全分析".应用生态学报 15.1(2004):31-35.