江西科学Issue(6)：829-835,7.DOI:10.13990/j.issn1001-3679.2015.06.010
基于RS和GIS的江西省万年县城镇扩展及其发展演变特征研究
Dynamic Pattern of Urban Expansion and Revolution of Wannian County in Jiangxi Province Based on RS and GIS
摘要
Abstract
Small urban and towns in the South China Red Soil Hilly Basin has develoPed raPidly in the Past decades. Based on Landsat TM,ETM+,OLI data and historical aerial image,we maPPed the urban lands of Wannian County in 1955,1989,2000,2010 and 2015 using ArcGIS and ENVI. We investigated the dynamic Pattern and sPatial evolution of urban exPansion in Wannian County for the Past five decades,using the urban exPansion rate index and land conversion analysis. The results show that the built-uP area has increased from 68. 04 hm2 to 2 985. 21 hm2 between 1955 and 2015, and the total urban area has extended 43. 87 times over Past 50 years. We found that temPo-sPatial Patterns of urban exPansion in Wannian County Presented different characteristics from 1955 to 2015 ,and suggest that Wannian County went through 4 distinct stages:the early stage of rural settle-ment( 1955 -1989 ),the formation of towns and the stagnation stage of develoPment( 1989 -2000),the raPid develoPment of towns(2000-2010),and the raPid aggregated highly-Primate de-veloPment of towns and cities(2010-2015). Because of geograPhical sPace constraints of the hilly basin,in the Plain area the urban exPanded raPidly with the ProPortion of urban area increased from 1 . 01% in 1955 to 33 . 52% in 2015 ,but cultivated land decreased from 85 . 87% to 42 . 97% during Past 50 years. Overall,Wannian County has exPerienced a fast exPansion with towns,industrial and mining land sPrawl in the Plain area of the Wannian Basin. With the raPid economic develoPment and urbanization,the Paradox between urban exPansion and cultivated land will be more serious. More measures should be taken to slow down the urban growth rate and cultivated land loss,and the economic benefits of land use need imProving.关键词
城镇扩展/土地利用转换/丘陵盆地/遥感/万年县Key words
urban exPansion/land conversation/hilly basin area/remote sensing/Wannian County分类
天文与地球科学引用本文复制引用
张杰,杨春燕,吴永明,郭海芳,邓觅,游海林..基于RS和GIS的江西省万年县城镇扩展及其发展演变特征研究[J].江西科学,2015,(6):829-835,7.基金项目
江西省自然科学基金资助项目（20132BAB213024）；全国科学院联盟建设专项（2012-5）；江西省科学院普惠制项目（2013-XTPH1-28）；江西省科学院博士基金（2010-YYB-05）资助。 （）
