长江上游航道整治工程对生态系统服务价值的影响
Impact of upper Yangtze River waterway regulation project on ecosystem service value
曹有莉 1万宇 2李文杰 2孔巧灵 1杜洪波 2张帅帅3
作者信息
- 1. 重庆交通大学,水利水运工程教育部重点实验室,重庆 400074
- 2. 重庆交通大学,水利水运工程教育部重点实验室,重庆 400074;重庆交通大学,国家内河航道整治工程技术研究中心,重庆 400074
- 3. 长江重庆航运工程勘察设计院,重庆 401147
- 折叠
摘要
航道整治工程江段的生态系统服务价值评价是衡量工程建设对生态系统可持续发展影响的关键指标.以长江上游朝天门—涪陵江段航道整治工程为案例,通过土地利用变化为切入点,采用当量因子法对工程前、中、后期生态系统服务价值进行评估.研究结果显示,朝涪段的生态系统服务价值在 2015-2018 年下降 1.40%,随后在 2018-2021 年增长5.73%.在 12 项服务功能价值中,占比最大的为水文调节,其次为航运服务价值,在工程前后均呈现上升趋势.不同地类的生态系统服务价值贡献度存在差异,水域一直是主要贡献因子和敏感因子.研究结论可为促进航道建设与生态保护的协调发展提供理论依据.
Abstract
The assessment of ecosystem service value in the river section of waterway regulation projects is a crucial indicator for measuring the impact of engineering construction on the sustainable development of ecosystems.Taking the waterway regulation project from Chaotianmen to Fuling in the upper reaches of the Yangtze River as a case study,this research employs land-use changes as a focal point and utilizes the equivalent factor method to assess the ecosystem service value in the pre-construction,mid-construction,and post-construction phases.The results show that the ecosystem service value in Chaofu section decreased by 1.40%from 2015 to 2018 but subsequently increased by 5.73%from 2018 to 2021.Among the twelve service functions,hydrological regulation has the highest proportion,followed by shipping service value,both showing an upward trend before and after the project.Different land types contribute differently to the ecosystem service value,with water bodies consistently being the main contributing and sensitive factors.The research findings can provide theoretical support for promoting the coordinated development of channel construction and ecological protection.
关键词
生态系统服务价值/土地利用类型/航道整治工程/长江上游Key words
ecosystem service value/land-use types/waterway regulation project/upper Yangtze River引用本文复制引用
基金项目
国家自然科学基金项目(52279058)
长江航道局科研项目(KY2022-01)
出版年
2024
NETL
NSTL
万方数据