摘要
针对已有研究中缺少对乡镇尺度下生态系统服务价值(ESV)时空演变与影响因素存在空间异质性的问题,该文基于2000年、2010年、2020年土地利用数据,采用修正的生态系统服务价值评估模型分析贵州省乡镇尺度下ESV时空演变特征,利用地理探测器模型探讨ESV空间分异的影响因素。结果表明:2000—2020年贵州省林地、水域、建设用地和裸地呈增加趋势,草地和耕地减少;近20年贵州省ESV增加了425.31亿元,林地是ESV增加的主要贡献者;单项服务中,以水文调节和水资源供给为主,共占总价值的21.98%;空间分布上,ESV呈“东高西低”的分布特征,热点出现在东南部,冷点出现在黔中地区;全省ESV空间分异的主导因子为喀斯特覆盖率,喀斯特乡镇主要受人为干扰指数的影响,而非喀斯特乡镇受人均GDP主导。研究结果可为贵州省制定针对性的生态保护政策提供参考,同时为生态与经济协调可持续发展提供理论依据。
In view of the problem that the lack of research on the spatial and temporal evolution of ecosystem service values(ESV)of the township scale and the influencing factors had spatial heterogeneity,based on the land use data in 2000,2010 and 2020,the modified ecosystem service value assessment model was used to analyze the spatial and temporal evolution characteristics of ESV at the township scale in Guizhou Province,and the geographic detector was used to explore the spatial differentiation of ESV's factors.The results showed that:Forest land,watershed,construction land and bare land in Guizhou Province showed an increasing trend from 2000 to 2020,while grassland and cropland decreased;ESV in Guizhou Province increased by 42.531 billion RMB in the past 20 years,with forest land was the main contributor to the increase in ESV;among the individual services,hydrological regulation and water supply were dominant,accounting for a total of 21.98%of the total value;In terms of spatial distribution,ESV has the characteristic of“high in the east and low in the west”,with the hot spots appearing in the southeast and cold spots appearing in Qianzhong;the dominant factors of the overall ESV spatial variation are karst coverage,and karst townships are mainly influenced by the human interference index,while non-karst townships are dominated by the per capita GDP.The results of the study can provide a reference for the development of targeted ecological protection policies in Guizhou Province,at the same time,it provides a theoretical basis for the coordinated and sustainable development of ecology and economy.
作者
胡玉雪
周旭
敖杨
袁稳玲
张文彬
王小华
HU Yuxue;ZHOU Xu;AO Yang;YUAN Wenling;ZHANG Wenbin;WANG Xiaohua(School of Geography and Environmental Sciences,Guizhou Normal University,Guiyang 550025,China;PIESAT Information Technology Co.,Beijing 100195,China)
出处
《测绘科学》
CSCD
北大核心
2023年第9期120-130,共11页
Science of Surveying and Mapping
基金
国家自然科学基金委员会-贵州省人民政府喀斯特科学研究中心项目(U1812401)。
关键词
生态系统服务价值
时空演变
地理探测器
喀斯特山区
ecosystem service value
temporal and spatial evolution
geographical detector
karst mountain area
