干旱区生态环境知识资源中心(Arid): 包头市层级生态网络构建方法研究

Arid

	包头市层级生态网络构建方法研究
其他题名	Construction Method of Hierarchical Ecological Network in Baotou City
	王戈; 于强; 张启斌; 岳德鹏; 刘建华
来源期刊	农业机械学报
ISSN	1000-1298
出版年	2019
卷号	50 期号:9 页码:235-242,207
中文摘要	以包头市为研究区,结合不同生态价值生境斑块的层级性,构建层级网络提取模型框架,选用合适的图论网络测度指标评价层级生态网络。结果表明:基于层级网络提取模型构建的包头市层级生态网络,所提取的第1、2、3层对应的潜在生态源地数量为8、31、123,第1、2、3层对应的潜在廊道数量为8、35、151,并确定对应的第1、2、3层生态节点数为7、28、47;计算alpha、beta、gamma指数,评价层次生态网络结构,随生态源地与廊道数量增加,网络中可供物质流动的回路增多,生态源地的平均连通度变好。针对半干旱区构建的层级生态网络,能够为包头市生态建设提供理论指导,对半干旱城市生态规划具有重要参考价值。
英文摘要	Ecological land patches with greater ecological service value are an important guarantee for maintaining regional ecological security in the semi-arid areas of Northwest China. Eco-service plaques with small ecological service values rely on large plaques. In the natural state,plaques of different sizes have a distinct hierarchical nature. A hierarchical network extraction model framework was constructed with Baotou City as the research area,combining with the hierarchical nature of different ecological value habitat patches. The hierarchical ecological network was evaluated by selecting appropriate graph theory network measurement indicators. The results showed that the hierarchical ecological network was constructed based on the hierarchical network extraction model,so the number of the first,second and third layers of ecological sources was 8,31 and 123,and the number of potential corridors on the first, second and third floors was 8,35 and 151,and the corresponding number of the first,second,and third layers of ecological nodes was 7,28 and 47; the alpha,beta,gamma indexes were calculated to evaluate the hierarchical network structure,with the increase of the low-level source and the number of corridors,the more loops available for material flow in a low-level network was,the lower-level ecological networks were better than the higher-level average connectivity. The hierarchical ecological network constructed for semi-arid areas can provide theoretical guidance for the ecological construction of Baotou City and had important reference value for semi-arid urban ecological planning.
中文关键词	包头市 ; 层级 ; 生态网络 ; 最小累积阻力模型
英文关键词	Baotou City hierarchy ecological network minimum cumulative resistance model
语种	中文
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6566747
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316041
作者单位	北京林业大学, 精准林业北京市重点实验室, 北京 100083, 中国
推荐引用方式 GB/T 7714	王戈,于强,张启斌,等. 包头市层级生态网络构建方法研究[J],2019,50(9):235-242,207.
APA	王戈,于强,张启斌,岳德鹏,&刘建华.(2019).包头市层级生态网络构建方法研究.农业机械学报,50(9),235-242,207.
MLA	王戈,et al."包头市层级生态网络构建方法研究".农业机械学报 50.9(2019):235-242,207.