白龙江流域近20年土地利用变化及其驱动力分析  

Land Use Changes and Its Driving Force in Bailong River Basin in Recent 20 Years

作　　者：郑传贺 汤萃文[1] 张玉霞 王瑛瑛 苏艳斌 Zheng Chuanhe;Tang Cuiwen;Zhang Yuxia;Wang Yingying;Su Yanbin(School of Environment and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《绿色科技》2024年第13期177-182,共6页Journal of Green Science and Technology

基　　金：甘肃省科技计划(编号:22JR5RA328);甘肃省科技厅重点研发项目(编号:18YF1NA015)。

摘　　要：利用遥感技术和地理信息系统处理平台,对白龙江流域中的碌曲县、迭部县和舟曲县,在2000年、2005年、2010年、2015年和2020年的土地利用类型进行了解译分析,并分析了影响土地利用变化的主要驱动因素。得出结论:①在白龙江流域土地利用结构中,林地和草地在20年间一直都是主要的土地利用类型,二者之和在每个研究年份均超过80%。林地主要分布在迭部县和舟曲县的部分区域,草地主要分布在碌曲县的大部分地区及舟曲县的东南部;②2000-2020年,建设用地一直处于变化速度较快的状态且用地面积一直在增加。单种土地利用类型在研究时段内变化速度最高的是2000-2005年的水域,增加了14.48%;③2000-2020年,导致白龙江流域内土地利用类型变化驱动因子解释力排名为月均相对湿度、月均温度、月均降水量、白龙江径流量、高程、坡度、年均人口密度、年均GDP和月均日照时数。In this study,remote sensing technology and GIS processing platform were used to understand and interpret the land use types of Luqu County,Diebu County and Zhouqu County in the Bailong River Basin in 2000,2005,2010,2015 and 2020,and the main driving factors affecting land use changes were analyzed.The conclusion is as follows:①In the land use structures of Bailong River Basin,woodland and grassland have been the main land use types in the past 20 years,and the sum of them exceeds 80%in each study year.Forest land is mainly distributed in Diebu County and part of Zhouqu County,and grassland is mainly distributed in most areas of Luqu County and southeast of Zhouqu County.②From 2000 to 2020,the construction land has been in a state of rapid changes and the land area has been increasing.The highest change rate of single land use types in the study period was the water area from 2000 to 2005,which increased by 14.48%.③From 2000 to 2020,the explanatory power of driving factors leading to land use type changes in Bailong River basin was ranked as monthly relative humidity,monthly average temperature,monthly average precipitation,Bailong River runoff,elevation,slope,average annual population density,average annual GDP and average monthly sunshine hours.

关 键 词：白龙江流域 土地利用变化 地理探测器 

分 类 号：TU982.29[建筑科学—城市规划与设计]