生态学报2026，Vol.46Issue(4)：1770-1786,17.DOI:10.20103/j.stxb.202506061433
海口国际湿地城市认证前后湿地生态功能变化评估
Assessment of changes in wetland ecological functions before and after Haikou's certification as an international wetland city
摘要
Abstract
The ecosystem service functions of wetlands served as the key foundation for realizing the important value of international wetland cities.However,existing studies on ecological assessment of wetlands before and after the establishment of international wetland cities mostly focused on the changes in wetland types and dynamics of wetland areas,with relatively less attention paid to the spatiotemporal evolution of their ecosystem service functions and policy-driven factors.To address this,this study adopted the"type-function-policy"comprehensive framework.Based on refined classification of urban wetlands(10-meter spatial resolution,13 wetland types),we first identified and quantified changes in wetland types and areas and then employed the InVEST model to evaluate changes in wetland ecosystem service functions before and after Haikou's certification as an international wetland city(2016 vs 2022).In addition,we explored changes in wetland types within the areas that experienced significant changes and analyzed the impact of wetland protection and restoration policies.Through this integrated approach,this study is intended to provide scientific evidence and practical support for the formulation of more targeted and effective wetland protection strategies and management measures in international wetland cities.The results indicated that:(1)Before and after certification,the total wetland area remained relatively stable,but marshes increased significantly,approximately 12.6%,while aquaculture ponds decreased sharply,approximately 36.67%.(2)Haikou's wetland ecosystem service functions showed significant improvements in wetland carbon storage(increasing by approximately 5.13%)and water purification functions(reducing nitrogen and phosphorus by approximately 3%and 3.55%respectively),but declined slightly in flood regulation(reducing by approximately 1.47%)and water conservation functions(reducing by approximately 2.12%).(3)Spatial variations in ecosystem services were predominantly stable.Carbon storage and water conservation changes were most prominent.The areas of the variation zones were 57.7 km2 and 50.32 km2 respectively.Within these change zones,the changes in wetland types were mainly reflected in the conversion from aquaculture ponds to coastal marshes and the mutual conversion between forest and marshes.The northern part of Meilan District and the southern part of Qiongshan District were typical areas exhibiting pronounced shifts in wetland ecosystem service functions.In view of this,the protection and management of urban wetland ecosystem in the future should not only focus on monitoring and regulating changes in wetland areas and types,but also attach greater importance to tracking the spatiotemporal dynamics of their ecosystem service functions,so as to maximize the exploration of wetland values.关键词
国际湿地城市/湿地生态系统服务功能/精细化湿地分类/InVEST模型Key words
international wetland city/ecosystem service function/refined wetland classification/InVEST model引用本文复制引用
余永彪,王晓雅,饶品增,蒋卫国,杨喆,荔琢,凌子燕..海口国际湿地城市认证前后湿地生态功能变化评估[J].生态学报,2026,46(4):1770-1786,17.基金项目
江苏省基础研究计划自然科学基金青年基金(BK20240711) （BK20240711）
南京信息工程大学人才启动经费资助(2024r094) （2024r094）
