Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China.
Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China.
J Environ Manage. 2021 Jun 15;288:112454. doi: 10.1016/j.jenvman.2021.112454. Epub 2021 Mar 27.
Given that improving urban ecological environment requires a clear recognition of the urban ecological elements, investigating the ecosystem service capabilities of urban green-blue infrastructures (UGBIs) becomes ever important. This study aims to reveal and compare the synergistic ecosystem service ability of UGBIs with different characteristics and the relationship with human demand in Wuhan city. It was found that the climate regulation service and water regulation service value of lake-type parks both reached the highest over the other UGBIs. Nature-type parks revealed the most capable cultural service, and green-type parks demonstrated the greatest exercise cultural service value. The analysis showed that the ecosystem services delivered by the UGBIs were influenced by the park area, the total value of the normalized difference vegetation index and normalized water body index, and the distance from the city centre. Furthermore, a significant spatial phenomenon was found that the ecological capacity of lake-type parks in the city centre was higher than that of the other UGBIs at the same location. Regarding the relationship with the human activity intensity, the high-demand and high-supply regions were mainly concentrated in highly developed areas in terms of regulating services. Nevertheless, a severe environmental inequality occurred in small urban centres, which requires urgent attention from the government. This work answered the question of where and how to optimize the green-blue infrastructures in Wuhan, and it contributes to the construction of the existing blue-green space.
鉴于改善城市生态环境需要明确认识城市生态要素，调查城市蓝绿基础设施（UGBIs）的生态系统服务能力变得至关重要。本研究旨在揭示和比较武汉市不同特征 UGBIs 的协同生态系统服务能力及其与人类需求的关系。研究发现，湖型公园的气候调节服务和水调节服务价值均高于其他 UGBIs。自然型公园具有最强的文化服务能力，而绿色型公园则具有最大的运动文化服务价值。分析表明，UGBIs 提供的生态系统服务受到公园面积、归一化植被指数和归一化水体指数的总价值以及与市中心的距离的影响。此外，还发现了一个显著的空间现象，即市中心的湖型公园的生态能力高于同一位置的其他 UGBIs。关于与人类活动强度的关系，高需求和高供应区域主要集中在调节服务方面发达地区。然而，在小的城市中心地区出现了严重的环境不平等，这需要政府的紧急关注。这项工作回答了在武汉何处以及如何优化蓝绿基础设施的问题，为现有蓝绿空间的建设做出了贡献。
