基于景观安全格局分析的生态用地分析研发.docxVIP

基于景观安全格局分析的生态用地研究以北京市东三乡为例 作者：俞孔坚　发表:《应用生态学报》2009，20（8）：1932-1939　/paper/paper.php?id=322[评论]摘要：借助较为成熟的景观安全格局理论和方法，根据自然、生物和人文过程的分析，可判断和规划对某种生态过程具有战略意义的景观安全格局，即维护某种生态过程的最小生态用地（包括格局和面积）。本研究从土地的地表属性和空间属性’ 个方面界定了生态用地的概念，将其定义为：在不 关键词：北京市 东三乡 景观 格局 生态 摘 要　借助较为成熟的景观安全格局理论和方法，根据自然、生物和人文过程的分析，可判断和规划对某种生态过程具有战略意义的景观安全格局，即维护某种生态过程的最小生态用地（包括格局和面积）。本研究从土地的地表属性和空间属性’?个方面界定了生态用地的概念，将其定义为：在不同空间尺度上，对维护关键生态过程和提供生态系统服务具有重要意义的生态系统（土地单元）及其空间部位?以北京东三乡为例，分析了基于雨洪管理和生物保护需求的生态用地，得出该区低、中、高%?种安全水平下的生态用地分别占研究区总面积的20.4%、31.1%和48.6%。?结果表明，基于关键生态过程的景观安全格局分析是生态用地定量研究的有效方法，该方法对城市规划和土地规划等具有重要参考价值。关键词?生态用地?景观安全格局?土地利用规划?北京东三乡 ?文章编号?1001—9332（2009）08—1932—08中图分类号Q149文献标识码?A Ecological land use in there towns of easten Beijing :A case study based on landscape secur-ity pattern analysis.YU Kong-jian, QIAO Qing, LI Di-hua, YUAN Hong, WANG Si-si (Gradu-ate School of Landscape Architecture, Peking University, Beijing 100083, China).- Chin.j.Appl.Ecol., 2009,20(8):1932-1939.?Abstract: ?With the well-developed theory and methodology oflandscape security pattern, and by the analysis ofnatural, biological, and cultural processes, it’s possible to judge and plan the land-scape security pattern of definite ecological process,i.e.,tomaintain the minimum ecological land use of this ecological process both in pattern and in area, which is of strategic significance.From the aspects of land coverage and spatial quality, this paper defined the ecological land use as the ecosystem (land unit) and its spatital position that have important significance in safeguarding criti-cal ecological prcessesand providing critical ecosystems’ services. Taking three towns in easten Beijing as an example, the ecological land use based on storm water management and biological conservation was analyzed. In the study area, the ecologicalland use at low, medium, andhighse-curity levels occupied 20.4%, 31.1% and 48.6% of the total, respectively, indicating that the landscape security pattern approach based on critical ecological processes w