渤海湾滨海地区生态安全屏障功能评价:生态系统服务供需视角
Evaluation of ecological security barrier function of the coastal area of Bohai Bay based on supply and demand of ecosystem services
卢学强 1郑博洋 2连懿 3莫训强 3李洪远1
作者信息
- 1. 南开大学环境科学与工程学院,天津 300350;天津市跨介质复合污染环境治理技术重点实验室,天津 300350;天津市环境生物地球化学循环调控技术国际联合研究中心,天津 300350
- 2. 南开大学环境科学与工程学院,天津 300350;天津市跨介质复合污染环境治理技术重点实验室,天津 300350;天津市环境生物地球化学循环调控技术国际联合研究中心,天津 300350;南昌市发展和改革委员会,南昌 330000
- 3. 天津师范大学地理与环境科学学院,天津 300380
- 折叠
摘要
研究以渤海湾为生态系统服务需求区,以渤海湾滨海地区为生态系统服务供给区,从生态系统服务供需的视角,以水资源、水环境、水生态为问题与目标维度构建了渤海湾滨海地区生态安全屏障功能评价体系.根据渤海湾生态问题,截污净化、产水量和生境质量3类指标被筛选为生态安全屏障功能的关键指标,并分别使用生态系统服务和权衡的综合评估模型(Integrated Valuation of Ecosystem Services and Trade-offs,InVEST)模型中的营养物迁移模型、产水量模型和生境质量模型进行评价.此外,对2000-2020年渤海湾滨海地区土地利用格局和截污净化、产水量、生境质量3类生态安全屏障功能指标的时空变化进行评价,并分析了生态安全屏障功能时空演变的驱动因素.研究的主要结果如下:(1)在20 a间渤海湾滨海地区,耕地、未利用地面积减少而建设用地和湿地面积增加,氮磷截留率和产水量增加,但生境质量下降.(2)渤海湾滨海地区综合生态安全屏障功能供给良好,但近年来呈下降趋势.(3)人类活动引起的土地利用变化是影响渤海湾滨海地区生态安全屏障功能时空演变的主要驱动力.研究对渤海湾滨海地区生态安全屏障功能评价方法及结果不仅可指导本区域生态建设,同时对其他区域的生态安全屏障功能评价具有借鉴意义.
Abstract
In this paper,we regarded Bohai Bay and its coastal area as ecosystem service demand area and supply area,respectively.Based on the perspective of ecosystem service supply and demand,an integrated evaluation system for the ecological security barrier function in the coastal area of Bohai Bay was constructed with a framework of problem analysis and barrier function in three dimensions:water resource,water environment,and water ecology.According to the ecological problems of Bohai Bay,the indexes of pollution purification,water yield,and habitat quality were selected as key ecological security barrier functions of the coastal area of Bohai Bay,and were evaluated using the Nutrient Delivery Ratio model,the Seasonal Water Yield model and Habitat Quality model in the InVEST platform,respectively.The spatial and temporal changes in land use pattern and ecological security barrier function indexes including pollution purification,water yield,and habitat quality in the coastal area of Bohai Bay from 2000 to 2020 were therefore evaluated.The driving factors for the spatial and temporal evolution of ecological security barrier function were analyzed.The main findings are as follows:(1)From 2000 to 2020,the area of cultivated land and unused land had been decreasing while the area of construction land and wetland had been increasing in the coastal area of Bohai Bay.Meanwhile,nitrogen and phosphorus retention rates and water yield had been increasing,but habitat quality had been decreasing.(2)The supply of ecological security barrier function in the coastal area of Bohai Bay is generally in a good status,but a downward trend in recent years can be also observed and special attention needs to be paid.(3)Land use change caused by human activities is the main driving force affecting the temporal and spatial evolution of ecological security barrier function.The results from this study can provide useful information for regional ecological construction and the evaluation system can be used in other regions.
关键词
环境学/生态安全屏障/生态系统服务/渤海湾滨海地区/生态系统服务和权衡的综合评估(InVEST)模型Key words
environmentalology/ecological security barrier/ecosystem service/coastal area of Bohai Bay/(Integrated Valuation of Ecosystem Services and Trade-offs)InVEST model引用本文复制引用
基金项目
国家社会科学基金重点项目(19AZD005)
国家重点研发计划项目(2019YFE0122300)
出版年
2024
NETL
NSTL
维普
万方数据