首页|大南昌都市圈生态系统服务价值时空演变及其驱动因素

大南昌都市圈生态系统服务价值时空演变及其驱动因素

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
探究生态系统服务价值(ESV)的时空差异,有利于明确生态保护的着力点.基于2000年、2010年和2020年3期土地利用数据,采用当量因子、空间自相关以及地理探测方法,分析大南昌都市圈ESV时空分异特征及其驱动因素.结果表明:2000-2020年,大南昌都市圈土地利用变化主要为建设用地(+141.43％)和水域(+12.68％)面积增加,草地(-12.25％)和耕地(-6.31％)面积减少,变化类型以林地转为草地、耕地转为建设用地和水域为主;研究区ESV呈现"先减后增"的变化趋势,总体增加164.38×108元,究其原因主要由于水域和湿地面积的增加;从空间分布看,鄱阳湖地区ESV呈现最高值,由此向周边地区递减,西部地区ESV较南部地区高;从ESV的空间自相关来看,局部相关性呈现"中间高四周低"的趋势,高-高集聚区分布在鄱阳湖区域,低-低集聚区主要分布在研究区南部,2000-2020年研究区ESV的空间集聚效应逐渐递减;植被覆盖变化是影响研究区域产生空间分异的关键因子,同时,自然与社会因子对ESV空间分异具有交互影响.研究结果可为区域的国土空间生态保护提供科学依据.
Spatial-temporal variations of ecosystem service value and its driving factors in the Great Nanchang Metro-politan Area
Exploring the spatiotemporal variations in ecosystem service value(ESV)is beneficial to clarifying the focus of ecological conservation.Based on the land use data in 2000,2010,and 2020,the spatial and temporal variations and driving factors of ESV in the Greater Nanchang Metropolitan Area were analyzed by using the equiva-lent factor,spatial autocorrelation and geographical detection methods.The results showed that land use change in the Greater Nanchang Metropolitan Area mainly displayed increases of construction land(+141.43％)and water area(+12.68％),and decreases of grassland(-12.25％)and cultivated land(-6.31％)from 2000 to 2020.The change type was mainly from forest land to grassland,and from cultivated land to construction land and water area.The ESV in the research area showed a trend of"decreasing first and then increasing",with an overall increase of 164.38x108 yuan,which was mainly due to the increase of water area and wetland area.From a spatial perspective,the ESV in Poyang Lake region was the highest,which decreased to the surrounding areas.The ESV in the western region was higher than that in the southern region.From the perspective of spatial autocorrelation of ESV,the local correlation showed a trend of"high in the center and low in periphery",with high-high concentration areas being distributed in the Poyang Lake area,and low-low concentration areas mainly in the south of the study area.From 2000 to 2020,the spatial agglomeration effect of ESV in the study area gradually decreased.Vegetation cover change was a key factor affecting spatial variations of ESV in the study area,and natural and social factors interac-tively affected ESV spatial differentiation.Our results provide scientific basis for the ecological protection of regional territorial space.

ecosystem service value(ESV)spatial and temporal differentiationgeographical detectorGreat Nanchang Metropolitan Area

杨晓帆、蔡海生、张学玲、左腾云、陈理庭

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江西农业大学江西省自然资源利用科技与管理创新研究基地,江西农业大学富硒农业产业发展研究中心,南昌 330045

江西农业大学国家林草局鄱阳湖流域森林生态系统保护与修复实验室,南昌 330045

江西省自然资源权益与储备保障中心,南昌 330025

生态系统服务价值(ESV) 时空分异 地理探测器 大南昌都市圈

国家自然科学基金项目国家自然科学基金项目江西省高校人文社科重点研究基地项目江西省自然资源厅项目

31660140315601502018-32QY20220084

2024

10.13292/j.1000-4890.202408.001

生态学杂志
中国生态学学会

生态学杂志

CSTPCD北大核心
影响因子：1.439
ISSN：1000-4890
年,卷(期)：2024.43(8)
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