行政区划多轮调整下的区域生态系统服务价值评价——以广州市南沙区为例  

Assessments of Ecosystem Service Values in a Region with Frequent Administrative DivisionAdjustments: A Case Study of Nansha District, Guangzhou

作　　者：曹野 陈虹[1] 聂宏璋 邵正杰 何畅 刘云刚 黄慧明[2] Cao Ye;Chen Hong;Nie Hongzhang;Shao Zhengjie;He Chang;Liu Yungang;Huang Huiming(School of Geography,South China Normal University,Guangzhou 510631,China;Guangzhou Urban Planning and Design Survey Research Institute,Guangzhou 510060,China)

机构地区：[1]华南师范大学地理科学学院,广州510631 [2]广州市城市规划勘测设计研究院,广州510060

出　　处：《热带地理》2023年第7期1440-1452,共13页Tropical Geography

基　　金：国家自然科学基金青年项目(41401194):制度变迁视角下新型城镇化与乡村重构互动机制研究——以珠江三角洲为例;国家自然科学基金面上项目(41871107):中国技术型新创企业的空间发展特征、机制和过程研究;国家自然科学基金项目专项项目(战略研究类,42142028):中国政治地理学学科发展战略研究。

摘　　要：选取广州市南沙区为案例研究地,采用当量因子、冷热点分析和重心模型等方法,探究该地1990—2020年多轮区划调整和生态系统服务价值(ESV)之间的时空演变关系,结果表明:1)行政区划调整引起土地利用变化,对区域ESV产生显著影响,区域总体ESV随着行政区划的调整出现了先降、后升、再降的变化特征。2)快速城市化地区行政区划的频繁调整虽然带来管理和资源整合的便利,但所引致的建设用地扩张以及耕地和林地减少,将导致生态系统的恶化。3)地方政府通过行政区划调整,获得更高的资源配置权和管理权;在政府引导下,生态修复、开发规划实施效果显著。湿地数量和质量的提升对全域ESV起正向影响。南沙应充分利用行政区划调整机遇,增强区域空间治理能力,未来与粤港澳大湾区各地市共同建立“共建、共享、共治”的流域及海岸带等跨区域协同治理体系,打造中国沿海生态保护与修复的高质量标杆。并且,在考量行政区划调整与区域ESV演变之间的关系时,不仅要关注总体效益的评价,还应对分阶段、多层次、多方面的政府行为、土地利用和国土开发模式进行深入分析。Administrative division adjustments(ADAs)have been key in optimizing regional resource allocation and spatial governance.The impacts of ADAs on regional ecosystems remain unclear in the"green turn"process of China's urbanization.This research chose Nansha District,Guangzhou,as a study area due to its frequent ADAs and its changing location in the Guangdong-Hong Kong-Macao Greater Bay Area in the past 30 years and investigated the relationship between Nansha's ADAs and the changing Ecosystem Service Values(ESVs)from 1990 to 2020 through applying the equivalent factors,hotspot analysis,and gravity analyses.The study reveals that in the rapid urbanization process,frequent ADAs have affected regional ecosystems and ESV changes,with pros and cons.First,there were strong relations between the ADAs and regional ESVs during 1990-2020.The total ESV of Nansha decreased first but increased later,then again decreased according to the ADAs that happened in 1990-2000,2000-2010,and 2010-2020.Second,land uses in Nansha District have varied because of urban sprawl since the ADAs.Ecosystems were degrading as a result of the increase of construction land and the depletion of farmland and woodland areas..Third,at the same time,gaining higher administrative privilege had facilitated local governments to promote the restoration of the ecosystem,particularly the enhancement of wetlands,which led to a growth in regional total ESVs in Nansha.It reveals that regional ecosystem services will undergo a phased,multi-level,and multi-faceted change because of the changes in local governance,the diversification of land uses,and the various land development models.This study fills the gap in studying relationships between changes in ecological system services and ADAs at the district(or county)level.The regional ecosystem services of Nansha are sustainable,as more than 40 percent of the total land is ecological.Therefore,it suggests Nansha District Government should take the chance of ADAs to enhance its privilege in regional spatial governance

关 键 词：行政区划调整 生态系统服务价值(ESV) 土地利用 湿地 南沙区 广州市 

分 类 号：Q149[生物学—生态学] F301.2[生物学—普通生物学]