摘要
城市化与生态系统服务供需相互作用关系在不同空间尺度下具有显著差异性。基于供需空间不匹配视角揭示生态系统服务对城市化的多尺度响应规律是实现城市可持续性发展的重要前提条件。研究从1 km×1 km、2.5 km×2.5 km、5 km×5 km、10 km×10 km、区县域和市域等6个空间尺度分析了2020年粤港澳大湾区生境质量服务、固碳服务和土壤保持服务供需关系和空间分异规律,并探究不同空间尺度生态系统服务供需关系对城市化的响应。结果表明:(1)生态系统供需错配集中分布在中心城区,空间尺度的增加加剧了中心城区的赤字程度。(2)城市化指数与生态系统服务供需比率在多空间尺度上均呈负相关关系。随着空间尺度增加,高城市化-生态系统服务赤字型逐渐向中心城区延伸,低城市化-生态系统服务盈余型向非城市化地区聚集。(3)在10 km和区县尺度上,生态系统服务供需对城市化响应最为剧烈,是解决二者不平衡发展的最佳尺度。本研究为高度城市化地区相关管理部门提供优化生态系统服务供需平衡的保护管理政策制定提供科学依据。
The interaction between urbanization and the supply and demand of ecosystem services exhibits significant differences at various spatial scales.Understanding the multi-scale response of ecosystem services to urbanization through supply-demand spatial mismatch is crucial for sustainable urban development.This study conducted a comprehensive analysis of habitat quality services,carbon sequestration services,and soil conservation services within the Guangdong-Hong Kong-Macao Greater Bay Area in 2020,across six spatial scales:1 km×1 km,2.5 km×2.5 km,5 km×5 km,10 km×10 km,county-level,and city-level.Furthermore,our investigation delved into the response of ecosystem service supply and demand relationships to urbanization.The results indicated that:(1)the central urban area showed a clear mismatch between ecosystem supply and demand,with the deficit worsening as the spatial scale expanded.(2)There was a negative correlation between urbanization index and the supply-demand ratio of ecosystem services at multiple spatial scales.As the spatial scale increases,the HL type extended towards the central urban area,while the LH type gathered in non-urbanized areas.(3)At the 10 km and district/county scales,the supply-demand of ecosystem services exhibited the most pronounced response to urbanization.These scales signaled the optimal scales for addressing the observed imbalance.This study provides a scientific basis for formulating protection and management policies to optimize the balance between the supply and demand of ecosystem services in highly urbanized areas.
作者
邓丽明
杨骥
尹小玲
贾凯
孙嘉
舒思京
黄爱琳
DENG Liming;YANG Ji;YIN Xiaoling;JIA Kai;SUN Jia;SHU Sijing;HUANG Ailin(Guangdong Provincial Key Laboratory of Remote Sensing and Geographical Information System/Guangdong Open Laboratory of Geospatial Information Technology and Application,Guangzhou Institute of Geography,Guangdong Academy of Sciences,Guangzhou 510070,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;College of Oceanography and Ecological Science,Shanghai Ocean University,Shanghai 201306,China)
出处
《生态学报》
CAS
CSCD
北大核心
2024年第20期9094-9107,共14页
Acta Ecologica Sinica
基金
广东省自然科学基金(2024A1515012223)
国家重点研发计划(2022YFF0711602)
国家自然科学基金(42201379)
广东省海洋经济发展专项项目(GDNRC[2024]35)。
关键词
生态系统服务
供需关系
城市化
尺度效应
粤港澳大湾区
ecosystem services
supply and demand relationship
urbanization
scale effect
Guangdong-Hong Kong-Macao Greater Bay Area
