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长株潭城市群人类活动强度与生态系统服务价值空间关系

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  • 万方数据
  • 维普
选取长株潭城市群为研究对象，以遥感影像、地理统计、交通路网等多源数据为基础数据源，构建人类足迹指数模型、生态系统服务价值修正模型和流向损益模型测度1990～2020年人类活动强度和生态系统服务价值的时空演化特征，并在此基础上综合运用地理探测器和双变量空间自相关模型，探究人类活动强度与生态系统服务价值的空间关系，揭示人类活动强度对生态系统服务价值的深刻影响。结果表明:近30a来长株潭城市群人类活动强度持续上升，增长率为33。33％，整体呈以主城区为中心向外围递减的圈层式空间演变特征。1990～2020年生态系统服务价值呈速率为1。38×108元/a缓慢下降的趋势，空间上呈现出"边缘区较高，核心区较低"的分布格局，林地转建设用地和耕地是价值量损失的主要原因。因子探测人类活动强度q值由0。348增至0。394，较好地解释了生态系统服务价值空间分异现象，风险探测发现随着人类活动强度的增强，生态系统服务价值总体呈下降趋势，其中生态系统文化服务价值在人类活动强度异常范围0。3～0。7内保持平衡。研究时段内Moran's I从-0。363变化为-0。491，人类活动强度与生态系统服务价值存在显著的负相关关系，且负向效应加剧，高-低聚类区主要分布在北部的中心城区，低-高聚类区主要分布于研究区边缘海拔较高的森林山脉密集地。
Spatial relationship between human activity intensities and ecosystem services value in Changsha-Zhuzhou-Xiangtan urban agglomeration
With Changsha-Zhuzhou-Xiangtan urban agglomeration as the research object,based on remote sensing images,geostatistics,transportation network data and other multi-source data,we built the human footprint index model,Ecosystem Service Value(ESV)modification model and flow gain-and-loss matrix to measure the spatiotemporal changes of the human activities intensity(HAI)and ESV from 1990 to 2020.On such basis,it also comprehensively made use of geographic detector and bivariate space autocorrelation model to investigate the spatial relationship between HAI and ESV,which helped to reveal the profound influence of HAI on ESV.The results indicated that:First,the HAI in the Changsha-Zhuzhou-Xiangtan urban agglomeration had an increasing trend in the past 30 years,with a growth rate of 33.33％;additionally,there was overall circle spatial evolution characteristic with the main urban area as the center,which decreased to the periphery.Second,the ESV showed a slow decline trend with an average annual decrease of 1.38×108 yuan and showed a distribution pattern of"higher in the fringe area and lower in the core area"from 1990 to 2020.The conversion of forest land to construction land and cultivated land was the main reason for the loss of value.Third,the q value of HAI in the factor detection increased from 0.348 to 0.394,which explained the spatial differentiation of ESV in a better manner.The risk detection found out that the ESV generally showed a decreasing trend with the increase of HAI.Among them,the value of ecosystem cultural services kept balance within the abnormal intensity range of human activity from 0.3 to 0.7.Fourth,Moran's I changed from-0.363 to-0.491 during the study duration,there was a spatial negative correlation between HAI and ESV and the negative effect was intensified.High-low clustered area mainly distributed in the central urban area in the north,the low-high clustered area mainly distributed in densely forested mountain ranges which had higher elevation at the edge of the study area.

human activity intensityecosystem service valuespatial-temporal correlationgeographical detectionChangsha-Zhuzhou-Xiangtan urban agglomeration

周雅萍、赵先超

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湖南工业大学城市与环境学院,湖南株洲 412007

人类活动强度 生态系统服务价值 时空关联 地理探测 长株潭城市群

湖南省社会科学评审委重大课题湖南省教育厅科学研究重点项目湖南省自然资源厅科技项目

XSP22ZDA00822A04192023-08

2024

中国环境科学
中国环境科学学会

中国环境科学

CSTPCDCHSSCD北大核心
影响因子：2.174
ISSN：1000-6923
年,卷(期)：2024.44(5)