title: Analyzing Land Use Changes in the Metropolitan Jilin City of Northeastern China Using Remote Sensing and GIS.
abstract: Remote sensing and GIS have been widely employed to study temporal and spatial urban land use changes in southern and southeastern China. However, few studies have been conducted in northeastern regions. This study analyzed land use change and spatial patterns of urban expansion in the metropolitan area of Jilin City, located on the extension of Changbai Mountain, based on aerial photos from 1989 and 2005 Spot images. The results indicated that urban land and transportation land increased dramatically (by 94.04% and 211.20%, respectively); isolated industrial and mining land decreased moderately (by 29.54%); rural residential land increased moderately (by 26.48%); dry land and paddy fields increased slightly (by 15.68% and 11.78%, respectively); forest and orchards decreased slightly (by 5.27% and 4.61%, respectively); grasslands and unused land decreased dramatically (by 99.12% and 86.04%, respectively). Sloped dry land (more than 4 degrees) was mainly distributed on the land below 10 degrees with an east, southeastern and south sunny direction aspect, and most sloped dry land transformed to forest was located on an east aspect lower than 12 degrees, while forest changed to dry land were mainly distributed on east and south aspects lower than 10 degrees. A spatial dependency analysis of land use change showed that the increased urban land was a logarithmic function of distance to the Songhua River. This study also provided some data with spatial details about the uneven land development in the upstream areas of Songhua River basin.
authors.affiliation: State Key Laboratory of Urban & Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, P.R. China. hudan@rcees.ac.cn.
authors.forename: Dan
authors.initials: D
authors.lastname: Hu
authors.affiliation: College of Geo-exploring Science and Technology, Jilin University, 6 West Minzhu Street, Changchun 130026, P.R. China. yanggd@jlu.edu.cn.
authors.forename: Guodong
authors.initials: G
authors.lastname: Yang
authors.affiliation: College of Geo-exploring Science and Technology, Jilin University, 6 West Minzhu Street, Changchun 130026, P.R. China. wuqiong@jlu.edu.cn.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wu
authors.affiliation: College of Geo-exploring Science and Technology, Jilin University, 6 West Minzhu Street, Changchun 130026, P.R. China. lihq@jlu.edu.cn.
authors.forename: Hongqing
authors.initials: H
authors.lastname: Li
authors.affiliation: The 3rd Surveying and Mapping Institute, Heilongjiang Bureau of Surveying and Mapping, 2 Cehui Road, Harbin 150086, P.R. China. bluelifeddt@163.com.
authors.forename: Xusheng
authors.initials: X
authors.lastname: Liu
authors.affiliation: College of Geo-exploring Science and Technology, Jilin University, 6 West Minzhu Street, Changchun 130026, P.R. China. niuxf@jlu.edu.cn.
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Niu
authors.affiliation: College of Geo-exploring Science and Technology, Jilin University, 6 West Minzhu Street, Changchun 130026, P.R. China. wzh19831221@sina.com.
authors.forename: Zhiheng
authors.initials: Z
authors.lastname: Wang
authors.affiliation: College of Geo-exploring Science and Technology, Jilin University, 6 West Minzhu Street, Changchun 130026, P.R. China. wqjlcy@163.com.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wang
keywords: GIS; Jilin City; Land use change; land use patterns; remote sensing; urban growth