title: [Spatiotemporal differentiation of construction land expansion in a typical town of south Jiangsu Province].
abstract: Choosing Xinzhuang Town in south Jiangsu Province as study area, and by using 1980, 1991, 2001, and 2009 high-resolution remote sensing images and GIS spatial analysis technology, an integrated expansion degree index model was established based on the existing indicators of construction land expansion, and the general and spatiotemporal differentiation characteristics of construction land expansion in the Town in three time periods of 1980-2009 were quantitatively analyzed. In 1980-2009, with the acceleration of rural urbanization and industrialization, the area of construction land in the Town increased significantly by 19.24 km2, and especially in 2001-2009, the expanded area, expanded contribution rate, and expansion intensity reached the maximum. The construction land expansion had an obvious spatial differentiation characteristic. In 1980-1991, the newly increased construction land mainly concentrated in town area. After 1991, the focus of construction land gradually spread to the villages with developed industries. Most of the increased construction lands were converted from paddy field and dry land, accounting for 88.1% of the total increased area, while the contribution from other land types was relatively small.
authors.affiliation: Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. zhourui1215@163.com
authors.forename: Rui
authors.initials: R
authors.lastname: Zhou
authors.forename: Yue-hui
authors.initials: YH
authors.lastname: Li
authors.forename: Yuan-man
authors.initials: YM
authors.lastname: Hu
authors.forename: Hai-long
authors.initials: HL
authors.lastname: Su
authors.forename: Jin-nian
authors.initials: JN
authors.lastname: Wang
mesh_terms: D002681:China; D002958:City Planning; D003247:Conservation of Natural Resources / Q000379:methods*; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods; D040362:Geographic Information Systems; D017215:Satellite Communications; D014507:Urbanization