高密度城区居住用地附属绿地对生态连通性影响——以深圳市福田区为例  

Impact of Residential Green Space on Ecological Connectivity in High-Density Built-up Areas:A Case Study of Futian District of Shenzhen City

作　　者：焦亚楠 李飞雪[1,2] 陈振杰 张启舜[3] 赵鑫 Jiao Yanan;Li Feixue;Chen Zhenjie;Zhang Qishun;Zhao Xin(School of Geography and Ocean Science Nanjing University,Key Laboratory of Land Satellite Remote Sensing Application(Ministry of Natural Resources),Jiangsu Key Laboratory of Geographic Information Science and Technology,Nanjing 210023,China;Jiangsu Province Geographic Information Resources Development and Utilization Collaborative Innovation Center,Nanjing 210023,China;Zhangjiagang Bureau of Natural Resources and Planning,Zhangjiagang 215600,China)

机构地区：[1]南京大学地理与海洋科学学院/自然资源部国土卫星遥感应用重点实验室/江苏省地理信息技术重点实验室,南京210023 [2]江苏省地理信息资源开发与利用协同创新中心,南京210023 [3]张家港市自然资源与规划局,江苏张家港215600

出　　处：《热带地理》2024年第4期596-607,共12页Tropical Geography

基　　金：国家自然科学基金——多层级图网络耦合的都市圈生态空间协同优化研究(42171396)。

摘　　要：文章通过识别生态源地、提取居住用地附属绿地,基于最小阻力模型,分析居住用地附属绿地支持与阻隔生物流通情景下的生态网络,探讨居住用地附属绿地对高密度城区生态连通性的影响,提出保护建议。结果表明:1)福田区中部莲花山公园、东部荔枝公园、南部皇岗公园生态连通性受其周围居住用地内连片或连续分布的带状附属绿地影响较大。2)居住用地附属绿地对生态连通性的影响体现在减小廊道阻力,其中对中阻力廊道的影响最大(单位成本距离下降29.2%);使具有重要生态保护价值的区域连片;能缓解在高密度建成区中的狭窄低阻力通道处形成夹点的情况。3)不同居住用地附属绿地连通情景下、不同阻力阈值下生态网络中重复出现的生态夹点被定为是最具有保护价值的一级夹点。根据不同情景下重复出现的生态夹点位置的重要性等级分类,针对性提出支持城市生态连通性的保护措施。建议加强新洲路福民路交汇处等一级夹点4处,优先保护靠近源地且位于源地间拓扑连接上的、规模超过平均规模5920.22 m^(2)的居住用地附属绿地。High-intensity land use and fragmented habitats are becoming more prevalent with urbanization,thereby accelerating the demand for maintaining and improving the ecological connectivity of habitat patches in high-density built-up areas.Previous studies have shown that small dispersed patches are crucial for enhancing connectivity across an entire landscape.However,as an important component of urban green space,residential green space in high-density built-up areas is often overlooked in ecological connectivity analysis.Taking Futian district,Shenzhen,as a case study,we explored the ecological connectivity in high-density built-up areas considering not only habitat patches but also green areas in residential quarters.We identified ecological patches and green areas in the residential areas of the study area.This was followed by a functional connectivity analysis under different scenarios.Several protection suggestions for improving ecological connectivity have been proposed based on functional connectivity analyses under different scenarios.The results show:1)The area of residential green space in Futian district is 3.86 km^(2),covering 26.9%of the total green space in the study area,with the western part being sparser than other regions.The total area of the ecological patches was 14.34 km^(2),and the importance of the patches was not consistent with their size.The ecological connectivity of Lianhuashan Park in the central region,Lichi Park in the eastern region,and Huanggang Park in the southern region is greatly affected by the contiguous or continuously distributed strips of residential green space around them.2)Residential green spaces affect eco-connectivity primarily by lowering corridor resistance,creating connectors for regions that require protection,and supporting biological flow.In particular,it had the largest effect on middle-resistance corridors(the unit cost distance was reduced by 29.2%)and alleviated the situation of pinch points formed in narrow low-resistance channels in high-density built-up are

关 键 词：居住用地附属绿地 生态网络 电路理论 最小累积阻力模型 高密度城区 深圳市 

分 类 号：TU985.2[建筑科学—城市规划与设计]