| 人居环境安全视角下的北京市浅山区泥石流防灾林规划研究 |
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| 引用本文： | 蔡怡然,刘阳,李柳意,梁淑榆,郑曦. 人居环境安全视角下的北京市浅山区泥石流防灾林规划研究[J]. 北京林业大学学报, 2021, 43(6): 130-140. DOI: 10.12171/j.1000-1522.20200207 |
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| 作者姓名： | 蔡怡然 刘阳 李柳意 梁淑榆 郑曦 |
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| 作者单位： | 北京林业大学园林学院，北京 100083 |
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| 基金项目： | 国家重点研发计划项目（2019YFD11004021） |
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| 摘 要： | [目的]城市边缘的浅山区是人类生产生活与自然生境的交接缓冲区,也是人居环境面对泥石流等自然灾害风险脆弱性较高的区域.相比通过工程方法降低浅山区中自然灾害威胁,防灾林选址规划作为基于生态系统的方法,可以恢复健康的生态系统,提供多样的生态系统服务并有效降低灾害风险,提高人居环境对自然灾害的抵抗力与适应力.[方法]本研究提出...
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| 关 键 词： | 防灾林规划 人居环境 泥石流 浅山区 |
| 收稿时间： | 2020-07-06 |
Planning of debris flow prevention forest in shallow mountain area of Beijing from the perspective of human settlement environment safety |
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| Cai Yiran,Liu Yang,Li Liuyi,Liang Shuyu,Zheng Xi. Planning of debris flow prevention forest in shallow mountain area of Beijing from the perspective of human settlement environment safety[J]. Journal of Beijing Forestry University, 2021, 43(6): 130-140. DOI: 10.12171/j.1000-1522.20200207 |
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| Authors: | Cai Yiran Liu Yang Li Liuyi Liang Shuyu Zheng Xi |
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| Affiliation: | School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | Objective The shallow mountain area on the edge of city is the buffer zone where human production and living meet the natural habitat. It is also an area where the human settlement environment is more vulnerable to natural disaster risks such as debris flows. Compared with reducing the threat of natural disasters in shallow mountain areas through engineering methods, disaster prevention forest site planning as an ecosystem-based approach, can restore healthy ecosystem, provide diverse ecosystem services, and effectively reduce the risk of natural disasters, so as to improve the resistance and adaptability of human settlements to natural disasters. Method This study proposed a site selection system of debris flow disaster prevention forest from the perspective of human settlement safety, and evaluated the effectiveness of planned disaster prevention forest to reduce the risk of debris flow in human settlements. Based on analytic hierarchy process (AHP), the susceptibility prediction of debris flow based on maximum entropy model (MaxEnt) was taken as debris flow risk factor, and suitability of afforestation locations in the debris flow basin that reduce the probability of debris flow disasters was taken as environmental factor for afforestation, and combined with afforestation feasibility factor, three kinds of factors were superimposed to analyze the areas with high debris flow risk and suitable for afforestation. The susceptibility of debris flow and the risk of human settlements before and after afforestation were evaluated to assess the disaster reduction benefits of afforestation, and to guide the afforestation site selection of debris flow disaster prevention forest in shallow mountain area of Beijing. Result The study selected 118.50 km2 of afforestation area, mainly distributed in the surrounding areas of Miyun Reservoir and the mountainous areas of Huairou District, Changping District and Fangshan District of Beijing, showing the characteristics of scattered patches distributed in the upstream of human settlements. The area of debris flow high-prone area decreased by 117.45 km2, and the number of settlements in the debris flow high-prone area decreased by 51. Conclusion The purpose of this study is to build a framework for afforestation site selection that enhances resistance to debris flows in human settlements, in order to reduce the risk of natural disasters in mountainous areas through ecosystem-based approach, improve the quality and safety of human settlements, protect the health of ecosystem, and provide a theoretical basis for the Beijing a-Million-Mu Afforestation and Greening Action Plan. |
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