基于InVEST模型的海口市生态系统服务空间评估  

Spatial Assessment of Ecosystem Services in Haikou City Based on InVEST Model

作　　者：王菲[1] 佘若晨 张乐 周鹏[1] WANG Fei;SHE Ruochen;ZHANG Le;ZHOU Peng(College of Forestry,Hainan University,Haikou,Hainan 570228,China)

机构地区：[1]海南大学林学院,海南海口570228

出　　处：《热带农业科学》2023年第8期100-106,共7页Chinese Journal of Tropical Agriculture

基　　金：海南省自然科学基金青年基金“海口城市边缘景观异质化对火山岩湿地生物多样性影响研究”(No.319QN162)。

摘　　要：海南自由贸易港的建设加快推进了海口市建设进程,其生态系统服务将面临巨大挑战。为评估海口市生态系统服务功能,基于InVEST模型对海口市2020年碳储存、生境质量和水源涵养量3项服务进行估算,并用主成分分析法确定综合生态系统服务功能的空间格局。结果表明:(1)2020年海口市碳储量、生境质量和水源涵养价值空间分布均呈现西部、南部高和北部低的格局;(2)林地、耕地和建设用地是各项生态系统服务主要贡献者;(3)碳储量与生境质量对海口市综合生态系统服务起主导作用,综合生态系统服务的极为重要区占比31.94%,集中成片分布在西部和南部,可作为维持生态系统良性循环的生态核心区。本研究为实现城镇平衡发展与生态环境保护提供科学依据。The construction of the Hainan Free Trade Port has accelerated the construction process of Haikou City,and its ecosystem services will face enormous challenges.In order to evaluate the ecosystem service function of Haikou City,based on the InVEST model,the three services of carbon storage,habitat quality,and water conservation in Haikou City in 2020 were estimated,and the spatial pattern of comprehensive ecosystem service function was determined by principal component analysis.The results showed that:(1)In 2020,the spatial distribution of carbon storage,habitat quality,and water conservation value in Haikou City showed a pattern of high in the west and south and low in the north.(2)Forest land,cropland,and con-struction land are prime contributors to ecosystem services;(3)Carbon storage and habitat quality play a dominant role in the integrated ecosystem services of Haikou City.The extremely-important areas of integrated ecosystem services account for 31.94%,which are concentrated in the west and south and can be used as the ecological core area to maintain the virtuous cycle of the ecosystem.This study provides a scientific basis for achieving balanced development of towns and cities and ecological-environment protection.

关 键 词：生态系统服务功能 InVEST模型 主成分分析 海口市 

分 类 号：X171.1[环境科学与工程—环境科学]