广东省降等报废小型水库周边土地利用变化特征分析  

Characteristics of Land-use Change in the Surroundings of the Demotedand Retired Small Reservoirs in Guangdong Province

作　　者：卢鹏宇 张旭辉[1,2,3] 袁明道 徐云乾[1,2,3] 谭彩 黄文康[1,2,3] LU Pengyu;ZHANG Xuhui;YUAN Mingdao;XU Yunqian;TAN Cai;HUANG Wenkang(Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China;State and Local Joint Enginering Iaboratory of Estuarine Hydraulic Technology,Guangzhou 510635,China;Guangdong Technical Research Centre of Flood Disaster Emergency,Guangzhou 510635,China)

机构地区：[1]广东省水利水电科学研究院,广州510635 [2]河口水利技术国家地方联合工程实验室,广州510635 [3]广东省山洪灾害突发事件应急技术研究中心,广州510635

出　　处：《广东水利水电》2024年第10期131-137,共7页Guangdong Water Resources and Hydropower

基　　金：广东省水利科技创新项目(编号:2020-17)。

摘　　要：以广东省2020—2022年实施降等或报废的小型水库作为研究对象,引入单一土地利用空间动态度、综合动态度和变化强度等指标,对2000—2020年期间水库周边土地利用之间的相互动态转化和时空变化特征进行分时段统计分析。研究结果表明:①2020—2022年广东省实施降等或报废的小型水库周边土地利用变化主要发生于2010—2020年,以耕地、森林和草地向人造地表的转化为重要特征,其中耕地向人造地表的转化最为突出;②耕地面积萎缩和人造地表扩张是广东省小型水库实施降等或报废的重要驱动因素;③此类驱动性转变最先发生于珠三角地区,在粤北地区表现最为显著。Indicators such as single land-use spatial dynamic degree,comprehensive dynamic degree and change intensity were used to study the demoted and retired reservoirs in Guangdong Province from 2020 to 2022.A time-segmented statistical analyse was conducted to study the dynamic transformations and spatiotemporal change characteristics of land-use in the surroundings of these reservoirs during the period from 2000 to 2020.The results indicate that:①The land-use change of the studied area mainly occurred in the period from 2010 to 2020.And the main charactor of this change is the transformation from cultivated land,forest,and grassland to artificial surfaces.②The shrinking of cultivated land and expansion of artificial surfaces are the key driving factors to the demotion and retirement of these small reservoirs.③Such driving transitions first occurred in the Pearl River Delta region and were most significant in the northern part of Guangdong Province.

关 键 词：小型水库 降等报废 土地利用变化 特征 

分 类 号：TV697.44[水利工程—水利水电工程]