| 摘要: |
| 城市绿地空间内部要素配比和结构的不合理抑制了绿地效益的发挥，城市风景区周边绿地是与人们生活较为密切的城市绿地类型之一，其独特的位置使之成为人们生活与自然互动的场所，研究该区域可以更加敏锐地抓住城市绿地空间特点，为当代城市的提质增效、高质量发展提供重要的研究与实践基础。本研究以南京钟山、雨花台风景区周边1km范围的绿地空间为研究对象，基于实地调研和遥感解译对绿地整体特征和典型建设用地的绿地分布特征进行分析，探究风景区周边绿地的空间分布特点和变化趋势。结果表明：（1）近10年，风景区周边绿地空间景观组成发生改变，附属绿地和防护绿地斑块所占景观面积比例降低，部分防护绿地转变为附属绿地，斑块数量和景观形状指数均表现出先增加后降低的趋势。（2）绿地空间在景观表现上更加破碎，聚集度指数增加，附属绿地的多样性和连接度较低，而防护绿地具有相反的趋势，绿地空间由风景区向外延伸，于山水人文交汇处呈现更好的连续性和生长性。（3）越靠近风景区，绿地斑块所占景观面积比例、多样性指数和连接度指数越大，斑块数量和景观形状指数越小，绿地斑块的面积越大且分布越连续。（4）越靠近风景区，附属绿地聚集度指数越大，而防护绿地聚集度指数越小，附属绿地在整体景观上表现出更加破碎的趋势，而防护绿地则更加完整。综上，风景区周边绿地亟需加强绿地空间与山水人文的景观耦合，依据用地类型打造多样化的绿地生长节点，并通过生态廊道连接并完善绿地空间的生态网络，以期为城市绿地空间优化和管理提供理论基础。 |
| 关键词: 城市绿地 空间分析 景观格局指数 风景区 变化趋势 |
| DOI： |
| 分类号:TU985 |
| 基金项目:安徽省国土空间规划与生态研究院资助的课题（GTY2021201）；国家自然科学基金项目（42101097） |
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| Analysis and Optimization of Spatial Distribution Characteristics of Green Spaces around Zhongshan and Yuhuatai Scenic Areas in Nanjing |
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BaiXiaohang
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| Abstract: |
| The suboptimal allocation and structural organization of elements within urban green spaces significantly hinder the maximization of their ecological and social benefits. Among the various types of urban green spaces, those surrounding scenic areas are particularly integral to urban life, serving as pivotal venues for human-nature interactions due to their unique locations. By focusing on these green spaces, we can more acutely capture the characteristics of urban green spaces, thereby providing crucial research and practical foundations for enhancing the quality and promoting high-quality development of contemporary cities. This study specifically examines the green spaces within a 1km radius around the Zhongshan and Yuhuatai scenic spots in Nanjing. Utilizing comprehensive field surveys and advanced remote sensing interpretation techniques, the study meticulously analyzes the overall characteristics of these green spaces and the distribution patterns of green spaces in typical construction land, aiming to delve into the spatial distribution characteristics and trends of green spaces around scenic areas. The findings of this study reveal several key insights: (1) Over the past decade, the landscape composition of green spaces around scenic areas has undergone significant changes. The proportion of landscape area occupied by affiliated green spaces and protective green spaces has decreased, with some protective green spaces transforming into affiliated green spaces. The number of patches and the landscape shape index have both shown a trend of initial increase followed by a decrease. (2) The green spaces have become more fragmented in their landscape representation, with an increase in the aggregation index. Affiliated green spaces exhibit lower diversity and connectivity, while protective green spaces show the opposite trend. The green spaces extend from the scenic areas outwards, demonstrating better continuity and growth at the intersection of natural and cultural landscapes. (3) The closer a green space patch is to the scenic area, the larger its proportion of the landscape area, the higher its diversity index, and the greater its connectivity index. Conversely, the number of patches and the landscape shape index decrease as proximity to the scenic area increases. The area of green space patches also becomes larger and more continuous the closer they are to the scenic area. (4) The aggregation index of affiliated green spaces increases with proximity to the scenic area, while the aggregation index of protective green spaces decreases. Affiliated green spaces exhibit a more fragmented trend in the overall landscape, whereas protective green spaces appear more intact. In summary, the green spaces around the scenic spots need to strengthen their connection with the natural and cultural landscapes. It is essential to create diverse green growth nodes based on land use types and to connect and improve ecological networks of green spaces through ecological corridors. These measures are expected to provide a theoretical foundation for the optimization and management of urban green spaces. The study emphasizes the importance of integrating green spaces with the natural and cultural contexts of scenic areas. By fostering a diverse array of green spaces that are strategically located and interconnected, urban landscapes can be enriched and made more resilient. The implementation of ecological corridors is particularly crucial as they serve as vital links in the ecological network, ensuring the continuity and vitality of green spaces. This holistic approach not only enhances the aesthetic and ecological value of urban environments but also contributes to the sustainable development and management of these spaces. The findings of this study are expected to inform urban planning and management strategies, promoting the harmonious coexistence of humans and nature in contemporary cities. |
| Key words: urban green space spatial analysis landscape pattern index scenic area variation trend |
