首页|基于形态空间格局分析与最小累积阻力模型的城市热环境生态网络优化研究

基于形态空间格局分析与最小累积阻力模型的城市热环境生态网络优化研究

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  • 国家科技期刊平台
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  • NSTL
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[目的]建立合理的城市热环境生态网络,以缓解城市热岛效应.[方法]以成都市中心城区为研究对象,基于"源-汇"理论,利用形态学空间格局分析方法(MSPA)与景观连通性指数,分别筛选研究区内景观稳定性好、连通性高的"源""汇"景观作为生态源地;运用最小累积阻力模型、重力模型以及水文分析模块构建和筛选研究区内的重要生态廊道,从而建立缓解城市热环境问题的多层级"源-汇"景观网络.[结果]分别筛选出24个具有重要连通性的"源""汇"核心斑块作为重要生态源地.构建"源-源"廊道102条,"汇-汇"廊道141条,"源-汇"廊道325条,生态节点103个,障碍点148个.通过综合相交分析,一级补偿廊道主要由岷江、毗河和其他河道构成,二级输送廊道主要分布在"汇"景观较为密集的区域,三级作用廊道主要分布在高强度建设区域.[结论]基于"源-汇"理论构建的多层级生态网络优化格局是有效缓解城市热岛效应的重要举措.图4表3参25
Research on optimization of urban thermal environment ecological network based on MSPA and minimum cumulative resistance model
[Objective]The acceleration of urbanization leads to the change of urban underlying surface,serious landscape fragmentation,and continuous intensification of urban heat island effect,especially in the urban center where buildings and populations are highly clustered.The establishment of reasonable ecological network has become one of the important ways to improve the urban ecological environment.[Method]Based on the"source-sink"theory,this study used morphological spatial pattern analysis(MSPA)and landscape connectivity index to select the"source"and"sink"landscapes with good landscape stability and high connectivity as ecological sources in the study area.The minimum cumulative resistance model,gravity model and hydrological analysis module were used to construct and screen important ecological corridors in the study area,so as to establish a multi-level"source-sink"landscape network to alleviate urban thermal environment problems.[Result]The results showed that 24 core patches with important connectivity were selected as important ecological sources.There were 102"source-source"corridors,141"source-sink"corridors,325"source-sink"corridors,103 ecological nodes and 148 obstacle points.Through comprehensive superposition,the first-level compensation corridor was mainly composed of Minjiang River,Pihe River and other river channels,the second-level transport corridor was mainly distributed in the area with dense"sink"landscape,and the third-level action corridor was mainly distributed in the high-intensity construction area.[Conclusion]The optimization pattern of a multi-level ecological network based on the"source-sink"theory is an important measure for effectively mitigating the urban heat island effect.[Ch,4 fig.3 tab.25 ref.]

morphological spatial pattern analysis(MSPA)minimum cumulative resistance model"source-sink"theoryurban thermal environmentlandscape ecological network

潘振华、周媛、姚婧、宁顺斌、罗于舒、汪曼林

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西南民族大学建筑学院,四川成都 610225

中国科学院沈阳应用生态研究所中国科学院森林生态与管理重点实验室,辽宁沈阳 110164

成都市经济发展研究院,四川成都 610072

形态空间格局分析方法(MSPA) 最小累积阻力模型 "源-汇"理论 城市热环境 景观生态网络

国家自然科学基金资助项目四川省自然科学基金资助项目西南民族大学中央高校基本科研业务费专项资金项目

520784402022NSFSC1160ZYN2022071

2024

10.11833/j.issn.2095-0756.20230505

浙江农林大学学报
浙江农林大学

浙江农林大学学报

CSTPCD北大核心
影响因子：0.929
ISSN：2095-0756
年,卷(期)：2024.41(5)