北京林业大学学报2025，Vol.47Issue(5)：142-155,14.DOI:10.12171/j.1000-1522.20240395
南湾库区森林生态系统服务时空变化特征及其权衡协同关系
Spatiotemporal variation characteristics and their trade-offs and synergies of forest ecosystem services in Nanwan Reservoir Area,Henan Province of central China
摘要
Abstract
[Objective]This study aims to reveal the spatiotemporal variations in forest ecosystem service disparities and their trade-offs and synergies,thereby providing a scientific basis for forest resource conservation and sustainable management.[Method]This study,conducted in the Nanwan Reservoir Area of Xinyang City,Henan Province of central China as the study area,provides a comprehensive assessment of four forest ecosystem services(i.e.,carbon sequestration,water conservation,soil retention,and habitat support)over the period from 2000 to 2020 using the InVEST and CASA models.Based on the spatiotemporal patterns,we further employed spatial overlay methods to explore the trade-offs and synergies among these four ecosystem services.[Result](1)The average annual carbon sequestration was 587.41 g/m2,while the average annual water conservation,soil retention,and habitat quality index were 361.71 mm,612.29 t/ha,and 0.9,respectively.(2)Temporally,carbon sequestration showed an overall increasing trend with fluctuations,whereas water conservation and soil retention initially declined before rising,and the habitat quality index exhibited a slight decreasing trend.Spatially,high-value ecosystem service areas were predominantly located in the western forested regions characterized by low mountains,whereas low-value areas were concentrated around downstream regions and surrounding water bodies.(3)Among the nine forest types,Quercus acutissima demonstrated the highest capacity for providing integrated ecosystem services.(4)The relationship among the four ecosystem services were characterized by high synergies and strong trade-offs,with synergistic areas increasing and trade-off regions decreasing over time.(5)High-synergy areas were predominantly found in Quercus acutissima forests,Pinus massoniana-Quercus acutissima mixed forests and bamboo forests,while trade-offs were commonly observed in Cunninghamia lanceolata and Pinus massoniana forests.Economic forests,such as chestnut forests and tea plantations,exhibited significant trade-offs,whereas interactions in shrubland and sparse woodlands were more heavily influenced by environmental conditions.(6)The primary driving factors of forest ecosystem services were identified as average annual precipitation,average annual temperature,normalized difference vegetation index and population density.[Conclusion]This study highlights the differences in ecosystem service capabilities among various forest types and identifies key areas that require prioritized protection and restoration,which provides a scientific foundation for enhancing the comprehensive benefits of forests in the Nanwan Reservoir Area.关键词
森林生态系统服务/权衡与协同/InVEST模型/CASA模型/南湾库区Key words
forest ecosystem services/trade-offs and synergies/InVEST model/CASA model/Nanwan Reservoir Area分类
农业科技引用本文复制引用
扶欣然,王成雨,余世有,文毅,刘维妍,胡蕾,陈玲..南湾库区森林生态系统服务时空变化特征及其权衡协同关系[J].北京林业大学学报,2025,47(5):142-155,14.基金项目
国家自然科学基金面上项目(42371345). （42371345）
