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基于生态敏感性分析的生态控制线修编研究
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作者 梁笑琼 范源萌 《环境与发展》 2019年第5期184-185,共2页
生态控制线在保障城市生态安全,遏制建设用地的无序蔓延式扩张有着重要的作用。随着生态控制线被城镇建设侵蚀,生态控制线的划定和管理提出了更高的要求。生态敏感性评价作为应用广泛的技术方法,能够为生态控制线划定及修编提供科学有... 生态控制线在保障城市生态安全,遏制建设用地的无序蔓延式扩张有着重要的作用。随着生态控制线被城镇建设侵蚀,生态控制线的划定和管理提出了更高的要求。生态敏感性评价作为应用广泛的技术方法,能够为生态控制线划定及修编提供科学有效的依据。以东莞市为例,通过生态敏感性评价分析,划分敏感性分区,提出生态控制线修编建议。 展开更多
关键词 生态控制线 生态敏感性 生态管控区
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FUZZY COMPREHENSIVE EVALUATION MODEL OF ECOLOGICAL DEMONSTRATION AREA 被引量:5
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作者 YU Ya-juan GUO Huai-cheng LIU Yong WANG Shu-tong WANG Jin-feng 《Chinese Geographical Science》 SCIE CSCD 2005年第4期303-308,共6页
Ecological demonstration area (EDA) is an authorized nomination, which should be assessed from several aspects, including ecological, social, environmental, economic ones and so on. It is difficult to advance an exact... Ecological demonstration area (EDA) is an authorized nomination, which should be assessed from several aspects, including ecological, social, environmental, economic ones and so on. It is difficult to advance an exact developing level index of EDA due to its indicator system’s complexity and disequilibrium. In this paper, a framework of indicators was set to evaluate, monitor and examine the comprehensive level of ecological demonstration area (EDA). Fuzzy logic method was used to develop the fuzzy comprehensive evaluation model (FCEM), which could quantitatively reveal the developing degree of EDA. Huiji District of Zhengzhou, Henan Province, one of the 9th group of national EDAs, was taken as a study case. The framework of FCEM for the integrated system included six subsystems, which were social, economic, ecological, rural, urban and accessorial description ones. The research would be valuable in the comprehensive quantitative evaluation of EDA and would work as a guide in the construction practices of Huiji ecological demonstration area. 展开更多
关键词 fuzzy comprehensive evaluation model (FCEM) ecological demonstration area (EDA) fuzzy logic system dynamics Huiji District of Zhengzhou
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Feedback Control for Ecosystem Management:The Case of Wolf-Elk-Hunting Dynamics in the US Mountain West 被引量:1
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作者 Kevin MACKSAMIE Jeffrey WAGNER Juan C.COCKBURN 《Journal of Mountain Science》 SCIE CSCD 2014年第4期850-865,共16页
The purpose of this paper is to explore the promise of utilizing some relatively new feedback control techniques in ecosystem management. First, we set forth a basic ecological-economic model of a predator-prey-huntin... The purpose of this paper is to explore the promise of utilizing some relatively new feedback control techniques in ecosystem management. First, we set forth a basic ecological-economic model of a predator-prey-hunting system in which both the predator and prey have use(flow) and non-use(stock) value and when the predator can inflict transboundary damages. We then use new data from the US Mountain West to show how a particular feedback approach—linear parameter-varying(LPV) control—can be utilized in this context. Our LPV model is able to quantify the cost of managing disturbances that inevitably arise as a manager tries to keep the actual path of the system "close" to its optimum. The results suggest management strategies in mountain ecosystems that feature large, mammalian carnivores. 展开更多
关键词 Feedback control Linear parameter Optimal vontrol Robust control PREDATOR-PREY Recreational hunting
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