摘要
土地利用格局变化与人类的实践活动与自然演变息息相关,对人与自然和谐共生具有重要的意义。选取西南丘陵地区小流域—琼江流域内的遂宁市安居区为研究对象,通过遥感技术和地理信息系统,结合土地利用转移矩阵,研究了遂宁市安居区土地利用格局与生态环境变化规律。结果表明:2010—2019年间安居区土地利用变化速度整体呈先增加后变缓的趋势,城镇用地变化显著,主要由耕地转化而来;安居区城镇用地土地利用动态度较大,其他4类土地利用类型变化较小;10年间安居区土地利用程度综合指数呈上升趋势,土地开发利用强度增大,但总体上升平缓;2010—2019年间安居区生态环境质量逐渐下降,林地、耕地面积减少为主要原因。本研究成果可为我国西南小流域城镇土地利用规划和可持续发展提供借鉴与参考。
The change in land use pattern is closely related to human activities and natural evolution,which is of great significance to the harmony between human and nature.The Anju District of Suining City that located in the Qiongjiang River Basin was chosen as the research object in this paper.With the remote sensing technology and geographic information system,land use pattern and law of ecological environment change in the Anju District of Suining City was studied according to the transfer matrix of land use.The results showed that land use increased first and then slowed down from 2010 to 2019.The change in urban land use was remarkable,and land was mainly transferred from cultivated land.Land use in the urban area of the Anju District was highly dynamic,with little change in the other four types of land use.The comprehensive index of land use in the study area showed an upward trend in the past 10 years,and the intensity of land development and utilization increased,but the land utilization rate rose gently on the whole.From 2010 to 2019,the the eco-environment in the study area gradually degraded,mainly due to the decrease of forest land and cultivated land.The conclusions of this study provides reference for planning and sustainable development of land use in urban areas in small river basins in southwest China.
作者
刘兵
何春杉
王璞
肖正龙
李双志
LIU Bing;HE Chun-shan;WANG Pu;XIAO Zheng-long;LI Shuang-zhi(Emergency Center for Ecological Environmental Safety of Suining,Suining,Siccuan 629000,China;State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu 610065,China;Ecological Environmental Monitoring Center of Suining City,Suining,Sichuan 629000,China)
出处
《四川环境》
2024年第2期93-99,共7页
Sichuan Environment
基金
四川省省级科技计划项目(2018SZYZF0001)。
关键词
土地利用
生态环境
遥感与地理信息系统
动态变化
小流域
Land use
ecological environment
remote sensing and geographic information system
dynamic change
small river basins
