摘要: |
绿地空间内部要素配比不合理会削弱
其生态效益,而风景区周边绿地与人们生活紧
密相连,是城市提质增效的关键区域。本研究
以南京钟山、雨花台风景区周边1km范围绿地
为研究对象,通过实地调研和遥感解译分析其
绿色空间分布特点和变化趋势。结果表明:近
10年,绿地空间在景观表现上更加破碎,附属
绿地和防护绿地斑块所占景观面积比例降低、
斑块数量和景观形状指数先增后降,部分防护
绿地转变为附属绿地。绿地空间由风景区向外
延伸,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,斑块面积越大且分布
越连续,附属绿地更破碎、防护绿地更完整。
综上,风景区周边绿地需加强与山水人文的景
观耦合,打造多样化的绿地生长节点、拓展生
态廊道、完善生态网络,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:10.13791/j.cnki.hsfwest.20240112005 |
分类号: |
基金项目:广东南岭森林生态系统国家野外科学观测研究站项目(NLF202402);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 aroundZhongshan and Yuhuatai Scenic Areas in Nanjing |
BAI Xiaohang,XIA Conghui
|
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, the study 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 1 km 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 ofecological 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 |