农业主产区生态系统服务供需格局及影响因素分析——以湖北省四湖流域为例
Supply-demand Spatial Pattern of Ecosystem Services and Influencing Factors in Agricultural Production Area:A Case of Sihu Lake Basin in Hubei Province
贺淑钰 1王玲 2陈俊辰 2戚琦 2王彬宇 2李可 2李兆华 2李昆1
作者信息
- 1. 湖北大学区域开发与环境响应湖北省重点实验室,湖北武汉 430062;湖北大学资源环境学院,湖北武汉 430062
- 2. 湖北大学资源环境学院,湖北武汉 430062
- 折叠
摘要
生态系统服务供需匹配状况可以反映区域生态与社会经济发展的协调程度,探究其空间异质性与主导驱动因子对于农业主产区生态与农业的协同发展具有重要意义.以湖北省四湖流域为研究对象,综合多源数据,应用ArcGIS、InVEST模型和地理探测器等方法,定量分析了四湖流域水源供给、固碳、粮食生产和水质净化等④种生态系统服务供需匹配状况、综合供需比及其冷热点区域的驱动因子.结果表明:(1)4种服务供给低值区与需求高值区的空间分布格局相似,主要位于流域西部高城市化区域.(2)除固碳服务外,其他三种服务均能满足流域内部需求,流域综合供需比为0.28,整体处于盈余状态.(3)各项生态系统服务供需比均呈现空间差异性,仅水质净化服务无明显冷点区域,其他服务冷点区域集中在西部高城市化区域,热点区域分布在水域和耕地密集区域.(4)建设用地与耕地分别为影响四湖流域生态系统服务冷点和热点区域供需平衡的主导因子,适当平衡耕地与建设用地的面积,增大湖泊湿地面积是流域实现供需平衡的重要方法.研究结果可为四湖流域和其他类似农业流域的生态系统保护与土地资源可持续利用提供科学支撑.
Abstract
The matching of ecosystem services supply and demand reflect the degree of coordination between regional ecological and socio-economic development.It is significant to reveal its spatial heterogeneity and dominant drivers for the synergistic development of ecology and agriculture in agricultural production areas.Taking the Four Lakes Basin in Hubei Province as the research object,ArcGIS、In VEST model and geographic probe to quantitatively measure the supply and demand matching status.The results show that:(1)The spatial distribution patterns of the ecosystem services in low-value supply areas and high-value demand areas mainly located in the highly urbanized areas in the western part of the basin.(2)Except for carbon sequestration services,other ecosystem services cmeet the internal demand of the basin,and the comprehensive supply-demand ratio of the basin is 0.28,which is in surplus.(3)The supply-demand ratio for each ecosystem service show spatial variability,the cold spots of water purification services was not significant,while the cold spots of other services concentrated in the highly urbanized western areas.The hot spots of services distributed in the dense areas of wetland and cultivated land.(4)Construction land and cultivated land the dominant factors affecting the balance of supply and demand between hotspot and coldspot of ecosystem services in the Sihu Lake Basin,respectively.It is significant to balance the area of cultivated land and construction land,increase the area of wetlands to achieve the balance of supply and demand in the basin.The results can provide scientific support for ecosystem conservation and sustainable use of land resource in Sihu Lake Basin and other similar agricultural basins.
关键词
生态系统服务/供需平衡/冷热点分析/地理探测器/四湖流域Key words
ecosystem services/supply and demand matching/hotspot and coldspot analysis/geographical de-tector/Sihu Lake Basin引用本文复制引用
基金项目
国家自然科学基金项目(42201325)
湖北省自然科学基金(2021CFB045)
出版年
2024
NETL
NSTL
万方数据