摘要
基于1995—2019年6期多源数据和生态系统服务评估模型,对千岛湖流域产水量、土壤保持、碳储量以及生境质量服务进行评价,并采用热点分析和相关分析来探究4项生态系统服务功能之间的权衡协同关系。结果表明:1995—2019年千岛湖流域产水量和土壤保持量呈现先减少后增加再减少的变化趋势,碳储量和生境质量缓慢增加;除产水服务外,其他3项服务的高值区整体上具有一定的重叠性,产水服务高值区主要集中在流域西部和中部湖泊沿岸区域。综合来看,非热点区面积占比最高,Ⅳ类热点区面积占比最低,多重生态系统服务供给区主要分布在中高地形梯度区,非热点区和单一服务供给分布在低梯度区;在千岛湖流域,协同关系是生态系统服务间的主导关系,其中产水量和碳储量为权衡关系,产水量和生境质量以及产水量和土壤保持之间的权衡协同关系在不同年份表现不同,土地利用类型、植被覆盖度以及高程是生态系统服务权衡关系的主要影响因子。千岛湖流域生态系统服务空间分布具有明显的异质性,其权衡协同关系存在差异。研究结果可为流域生态规划和社会经济发展提供科学依据。
Based on 6 periods of multi-source data and ecosystem service evaluation model from 1995 to 2019,we evaluated the ecosystem of water yield,soil conservation,carbon storage and habitat quality in the Thousand-island Lake Basin,and then studied the trade-off and the trade-off and synergy between ecosystem ser-vice functions are explored by combining hot spot analysis and correlation analysis.The results show that the wa-ter yield and soil conservation in the Thousand-island Lake Basin has the same change trend characteristics,which is a trend of first decreasing,then increasing,and then decreasing.Carbon storage and habitat quality have increased.In addition to water yield services,the high calue region of the other 3 services have certain overlap on the whole,the high calue region of water yield services are mainly concentrated in the western and Central Lake coastal areas of the basin.In general,the area of non hot spots accounts for the highest proportion,and the area of categoryⅣhot spots accounts for the lowest proportion.The multi ecosystem service supply areas are mainly dis-tributed in the medium and high gradient areas,and the non hot spots and single service supply areas are distrib-uted in the low gradient areas.In the Thousand-island Lake Basin,synergy is the dominant relationship between ecosystem services,in which water production and carbon storage are trade-offs,and the trade-off synergies between habitat quality and soil conservation are different in different years.Land use type,vegetation coverage,and elevation are the main influencing factors for the trade-off between ecosystem services.The spatial distribu-tion of ecosystem services in the Thousand-island Lake Basin is obviously heterogeneous,and there are differ-ences in the trade-off synergy.The research results can provide important data support for watershed ecological planning and socio-economic development.
作者
朱志洪
王晖
汪继斌
李爱博
黄润霞
周本智
王懿祥
Zhu Zhihong;Wang Hui;Wang Jibin;Li Aibo;Huang Runxia;Zhou Benzhi;Wang Yixiang(School of Environmental and Resources Science,Zhejiang A&F University,Hangzhou Zhejiang 311300,China;Research Institute of Subtropical Forestry,Chinese Academy of Forestry/Qianjiangyuan Forest Ecosystem Research Station,National Forestry and Grassland Administration,Hangzhou Zhejiang 311400,China;Thousand-island Lake Forest Farm,Hangzhou Zhejiang 311700,China;Forest Bureau of Chun'an County,Hangzhou Zhejiang 311700,China)
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2024年第3期99-109,共11页
Journal of Southwest Forestry University：Natural Sciences
基金
中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2019ZD001)资助。
关键词
生态系统
权衡协同
千岛湖流域
热点分析
ecosystem
trade-offs and synergies
Thousand-island Lake Basin
hot spot analysis
