摘要
明晰黄河中游地区生态系统服务的权衡协同关系,是保证生态系统服务长期有效供应,实现黄河流域生态保护与高质量发展的重要前提。本文利用InVEST模型、ArcGIS和Matlab等工具对2000—2020年黄河中游地区的土壤保持、水源涵养、固碳以及生境质量服务的时空特征及其协同权衡关系进行分析。结果表明:(1)黄河中游地区土壤保持、水源涵养和生境质量服务总体呈上升趋势,而固碳服务呈波动下降趋势;(2)2000—2020年,土壤保持、水源涵养服务总体表现为“南高北低”,其高、低值区有所变动;固碳服务整体呈“东南高、西北低”,高、低值区变化不明显;生境质量服务高、低值区相间分布,高值区稍有扩散;(3)黄河中游地区固碳与生境质量服务、生境质量与水源涵养服务、水源涵养与土壤保持服务为协同关系,固碳与土壤保持服务、生境质量与土壤保持服务为权衡关系,而固碳与水源涵养服务整体上表现为不相关;(4)生境质量与水源涵养、土壤保持服务的权衡区面积比例呈上升趋势,而水源涵养和土壤保持服务的协同区面积比例呈上升趋势,固碳与其他服务在大部分区域表现为不相关关系。
Background,aim,and scope Clarifying the tradeoffs and synergies relationship of ecosystem services in the middle reaches of the Yellow River is an important prerequisite for ensuring long-term effective supply of ecosystem services and realizing ecological protection and high-quality development in the Yellow River Basin.This study analyzed the spatial-temporal evolution characteristics of ecosystem services and the changes of tradeoffs and synergies relationship in the middle reaches of the Yellow River from 2000 to 2020,and it provides decision-making reference for ensuring the long-term and effective supply of ecosystem services and promoting ecological protection and high-quality development.Materials and methods Based on the meteorological data,soil attribute data,land use data and digital elevation model(DEM)data from 2000 to 2020,the InVEST model were used to study the spatial-temporal characteristics of soil conservation,water conservation,carbon sequestration and habitat quality services in the middle reaches of the Yellow River,and the autocorrelation analysis method were used to investigate the tradeoffs and synergies relationship of different ecosystem services and their spatial-temporal evolution characteristics.Results(1)Soil conservation,water conservation and habitat quality services in the middle reaches of the Yellow River showed an upward trend,while carbon sequestration services showed a fluctuated downward trend.(2)From 2000 to 2020,the overall performance of soil conservation and water conservation services is“high in the south and low in the north”,and their high and low values have changed.The overall performance of carbon sequestration service was“high in the southeast and low in the northwest”,and the change of high and low values was not obvious.The high and low values of habitat quality service were distributed interchangeably,and the high values were diffused slightly.(3)In the middle reaches of the Yellow River,carbon sequestration and habitat quality services,habitat quality
作者
任娟
赵雪雁
徐省超
马平易
杜昱璇
REN Juan;ZHAO Xueyan;XU Xingchao;MA Pingyi;DU Yuxuan(College of Geography and Environment Science,Northwest Normal University,Lanzhou 730070,China)
出处
《地球环境学报》
CSCD
2022年第4期477-490,共14页
Journal of Earth Environment
基金
中国科学院战略性先导科技专项(A类)(XDA19040502)
国家自然科学基金项目(41971268)。
关键词
黄河中游
生态系统服务
权衡与协同
时空变化
middle reaches of the Yellow River
ecosystem services
tradeoffs and synergies
spatial-temporal evolution