摘要
[目的]分析山西省吕梁市土地利用时空变化特征及驱动因素,为该地区土地管理与可持续发展提供科学依据。[方法]基于吕梁市2000—2020年土地利用数据,采用土地利用转移矩阵、动态度、稳定度、标准差椭圆分析土地利用时空变化特征,并借助PLUS模型探索土地利用变化的自然与社会驱动因素。[结果](1)吕梁市土地利用以耕地、林地、草地为主,2000—2020年耕地面积减少了396.1 km^(2),建设用地扩张了540.6 km^(2),水域面积增加。耕地—草地、耕地—建设用地之间的转移占主导地位。耕地在东南部平原集中减少,林地零星变化,建设用地沿沟谷、道路组团式扩张。(2)2010—2020年是土地利用变化较剧烈的时期。耕地、林地和草地减少,建设用地扩张,变化速率较快,稳定性差。总体土地利用变化速率随时间推移明显加快。(3)高程对土地利用变化贡献度最高,坡度次之。气温、降水、人口密度、地均GDP和距道路距离等因素影响土地利用转移。[结论]2000—2020年吕梁市建设用地扩张明显,耕地减少,土地利用空间分布存在异质性,且变化速率逐渐加快。控制建设用地对平原耕地的侵占,加强山区林地资源的保护有利于区域可持续发展。
[Objective]The spatiotemporal evolution characteristics and driving forces of land use changes in Lüliang City of Shanxi Province was determined,in order to provide a reference for land management and sustainable development.[Methods]Land use data from 2000 to 2020 in Lüliang City were used to determine the spatiotemporal evolution characteristics of land by using a land use transfer matrix,dynamic degree,stability degree,and standard deviation ellipse.Additionally,the PLUS model was used to determine the natural and social driving factors of land use change.[Results](1)Land use types in Lüliang City were dominated by cropland,forest land,and grassland.From 2000 to 2020,the cropland area decreased by 396.1 km^(2),the construction land area expanded by 540.6 km^(2),and the water area increased.The transfer of land between cropland and grassland,and between cropland and construction land dominated.Cropland was concentrated and reduced in the southeastern plain,with scattered changes in forest.Construction land expanded in clusters along valleys and roads.(2)The period from 2010 to 2020 was a period of intense land use changes,with reductions in cropland,forest land,and grassland,expansion of construction land,rapid changes,and poor stability.The overall rate of land use change significantly accelerated over time.(3)Elevation had the highest contribution to land use change,followed by slope.Factors such as temperature,precipitation,population density,GDP,and distance from roads affected land use transfer.[Conclusion]From 2000 to 2020,the expansion of construction land in Lüliang City was significant,with a decrease in cropland.Heterogeneity was observed in the spatial distribution of land use,and the rate of change gradually accelerated.Controlling the encroachment of construction land on cropland,and strengthening the protection of forest resources in mountainous areas will be beneficial for sustainable regional development.
作者
解铭威
周慧荻
陈耸
王向荣
Xie Mingwei;Zhou Huidi;Chen Song;Wang Xiangrong(School of Landscape Architecture,Beijing Forestry University,Beijing 100083,China)
出处
《水土保持通报》
CSCD
北大核心
2024年第3期296-306,共11页
Bulletin of Soil and Water Conservation
基金
国家重点研发计划课题“城市生态空间控制和布局优化技术”(2022YFC3800203)。
关键词
土地利用
时空变化
PLUS模型
驱动
山西省吕梁市
land use
spatiotemporal evolution
PLUS model
driving forces
Lüliang City of Shanxi Province
