恭城县特色农产品种植园土地利用变化及驱动力分析
Analysis of Land Use Changes and Driving Forces of Gongcheng Characteristic Agricultural Product Plantations
方中杰 1方荣杰 2徐保利 2徐觉明 3代俊峰 4邹传林 1薛鹏威1
作者信息
- 1. 桂林理工大学环境科学与工程学院,广西桂林 541004
- 2. 桂林理工大学环境科学与工程学院,广西桂林 541004;桂林理工大学广西环境污染控制理论与技术重点实验室,广西桂林 541004;桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心,广西桂林 541004
- 3. 恭城瑶族自治县科技开发和情报研究所,广西恭城 542500
- 4. 桂林理工大学广西环境污染控制理论与技术重点实验室,广西桂林 541004;桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心,广西桂林 541004
- 折叠
摘要
以1990-2019年4期Landsat系列遥感影像为数据源,研究了广西恭城瑶族自治县土地利用总体特征变化、动态变化和转移规律,定量分析地形因素对果园空间分布的影响,并运用主成分分析法揭示了土地利用变化的主要驱动力.结果表明:1990-2019年,恭城瑶族自治县土地利用类型以林地为主,耕地次之,研究期间果园和建设用地的面积占比显著增加,耕地和未利用土地的面积占比有所减少;147～378 m高程和0°～6°坡度区域是果园主要分布区,所有土地利用类型变化中果园动态度最大,其中1990-2000年果园动态度最高(103.38％);转移矩阵显示恭城瑶族自治县果园主要由耕地和林地转换而来,林地转入的占比呈上升趋势,其中2010-2019年份转化最多,耕地和林地主要被建设用地占用;主成分分析法结果显示恭城瑶族自治县土地利用类型变化的主要驱动力为GDP、城镇人口和柿子种植面积增多.研究可为特色农产品健康可持续发展的土地利用政策提供参考.
Abstract
Using Landsat series remote sensing images from 1990-2019,characteristics of land use changes,dy-namic changes and transfer law were studied,and then the influences of topographic factors on the orchard spatial pattern and the main driving force of land use changes were analyzed using the principal component analysis method.Results showed that forest was the main type of land use in Gongcheng Yao Autonomous County,fol-lowed by cultivated land during 1990-2000.The proportion of orchard and construction land increased,while the proportion of cultivated land and unused land decreased from 1990 to 2019;The 147～378 meter elevation and 0～6 slope areas were the main distribution areas of the orchard.The orchard had the most dynamic degree in all land use types.Among them,during 1990-2000,the dynamic degree of the orchard was the highest(103.38％);The transfer matrix showed that the orchard in Gongcheng Yao Autonomous County was mainly converted from cultivated land and forest land.The proportion of forest land transfer is on the rise.In the 2010-2019 year con-version,cultivated land and forest land were mainly occupied by construction land;The results of principal com-ponent analysis showed that the main driving forces of land use type changes in Gongcheng Yao Autonomous County were GDP,urban population and increased persimmon planting area.This study can provide effective technical reference for the land use policy for the healthy and sustainable development of featured agricultural products.
关键词
土地利用动态度/土地转移矩阵/地形因素/驱动力/恭城瑶族自治县Key words
dynamic degree of land use/land transfer matrix/topographic factors/driving force/Gongcheng Yao Autonomous Region引用本文复制引用
基金项目
桂林理工大学博士科研启动基金(GUTQDJJ2019026)
广西科技计划项目(2022GXNSFBA035614)
桂林市科学研究与技术开发计划(20190216-2)
广西环境污染控制理论与技术重点实验室研究基金(桂科能2101Z011)
广西重点研发计划(桂科AB22035075)
出版年
2024
NETL
NSTL
万方数据