干旱区生态环境知识资源中心(Arid): 基于空间主成分和最小累积阻力模型的内陆河景观生态安全评价与格局优化--以张掖市甘州区为例

Arid

	基于空间主成分和最小累积阻力模型的内陆河景观生态安全评价与格局优化--以张掖市甘州区为例
其他题名	Assessment of landscape ecological security and optimization of landscape pattern based on spatial principal component analysis and resistance model in arid inland area: A case study of Ganzhou District,Zhangye City,Northwest China
	潘竟虎; 刘晓
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2015
卷号	26 期号:10 页码:3126-3136
中文摘要	以干旱内陆河主要生态环境问题为出发点,利用景观生态学方法、空间主成分分析和GIS技术,获取甘州区生态安全格局的分布状况.选取海拔、坡度、自然和文化景观保护区、土壤类型、土壤侵蚀量、植被覆盖度、距道路距离、距工业用地距离、距居民点距离以及距水体距离等10个要素作为约束条件,并采用景观最小累积阻力模型构建生态廊道和生态节点来优化生态功能网络的结构及功能.结果表明:甘州区生态安全综合状况一般,以中等安全水平为主,面积为1318.7 km~2,占研究区总面积的36.7%.低度安全水平的区域主要位于研究区北部,占研究区总面积的19.9%.构建了由6条生态廊道、14个生态节点、1个较大的生态源区和若干个小面积源区组成的点、线、面交织的区域生态网络格局,将有效改善研究区的生态安全水平.
英文摘要	Starting from ecological environment of inland river in arid area,the distribution of ecological security pattern of Ganzhou District was obtained by using the theory of landscape ecology, spatial principal component analysis (SPCA) and GIS techniques. Ten factors such as altitude, slope,soil erosion,vegetation coverage,and distance from road,were selected as the constraint conditions. According to the minimum cumulative resistance (MCR) model of landscape,the ecological corridor and nodes were established to optimize the structure and function of ecological function network. The results showed that the comprehensive ecological security situation of the research area was on the average. Area of moderate level of security was 1318.7 km~2,being the largest and accounting for 36.7% of the research area. The area of low level of security was mainly located in the northern part and accounted for 19.9% of the study area. With points,lines and surfaces being interlaced,a regional ecological network was constructed,which was consisted of six ecological corridor, 14 ecological nodes,a large ecological source region and a plurality of small area source region, and could effectively improve ecological security level of the study area.
中文关键词	景观生态安全格局 ; 空间主成分 ; 最小累积阻力 ; 生态网络 ; 甘州区
英文关键词	landscape ecological security pattern spatial principal component analysis minimum cumulative resistance ecological network Ganzhou District
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5542353
来源机构	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/2XILL650/233587
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	潘竟虎,刘晓. 基于空间主成分和最小累积阻力模型的内陆河景观生态安全评价与格局优化--以张掖市甘州区为例[J]. 西北师范大学,2015,26(10):3126-3136.
APA	潘竟虎,&刘晓.(2015).基于空间主成分和最小累积阻力模型的内陆河景观生态安全评价与格局优化--以张掖市甘州区为例.应用生态学报,26(10),3126-3136.
MLA	潘竟虎,et al."基于空间主成分和最小累积阻力模型的内陆河景观生态安全评价与格局优化--以张掖市甘州区为例".应用生态学报 26.10(2015):3126-3136.