三峡库区重庆段释氧服务供需关系的时空变化  

Spatio-temporal variation of supply and demand of oxygen release services in Chongqing section of Three Gorges Reservoir Area

作　　者：蔡俊飞 汤曾伟 王亚林 钱文进 曾攀 肖禾 CAI Junfei;TANG Zengwei;WANG Yalin;QIAN Wenjin;ZENG Pan;XIAO He(Chongqing Geomatics and Remote Sensing Application Center,Chongqing 401120,China)

机构地区：[1]重庆市地理信息和遥感应用中心,重庆401120

出　　处：《北京测绘》2025年第2期189-194,共6页Beijing Surveying and Mapping

基　　金：国家自然科学基金(42001269);重庆市科研机构绩效激励引导专项(DLYG2022JXJL005)。

摘　　要：释氧服务是生态系统服务最重要的功能之一,属于生态系统服务中的气体调节服务功能,对减缓全球变暖的趋势、稳定局部气候方面有着重要作用。本文以三峡库区重庆段为研究区,基于ArcGIS、GeoDa等软件,分析其2000—2020年释氧服务供需数量及其空间匹配状况的时空变化,旨在为三峡库区重庆段国土空间格局优化提供科学依据。结果表明:2000—2020年,①三峡库区重庆段释氧服务总供给量呈现增长的趋势,并呈现出从西南向东北逐渐递增的空间分布格局;②总需求量呈现出递减的趋势,高值区分布在人口密集区;③释氧服务总体供需数量匹配较好,在全域呈现出供大于求的空间分布态势;④供需空间匹配以“高低型空间错位”和“低高型空间错位”为主。The oxygen release service is one of the most important functions of ecosystem services and belongs to the gas regulation service function of ecosystem services,which plays an important role in slowing down the trend of global warming and stabilizing the local climate.Taking the Chongqing section of the Three Gorges Reservoir Area as an example,this paper analyzed the spatio-temporal variation of the supply and demand of oxygen release services and their spatial matching conditions from 2000 to 2020 based on ArcGIS,GeoDa,and other software,aiming to provide a scientific basis for optimizing the spatial pattern of the Chongqing section of the Three Gorges Reservoir Area.The results show that:from 2000 to 2020,①the total oxygen service supply in the Chongqing section of the Three Gorges Reservoir Area shows an increasing trend and presents a gradually increasing spatial distribution pattern from southwest to northeast regions.②The total demand shows a decreasing trend,and the high-value area is distributed in the densely populated area.③The overall supply and demand of oxygen release services are well matched,showing a spatial distribution trend of oversupply in the whole region.④The spatial matching of supply and demand is mainly based on“spatial dislocation of high supply and low demand”and“spatial dislocation of low supply and high demand”.

关 键 词：三峡库区重庆段 释氧服务 供需关系 时空格局 

分 类 号：P208[天文地球—地图制图学与地理信息工程]