Multi-temporal remote sensing of land cover change and urban sprawl in the coastal city of Yantai, China

作     者：Xinyang Yu Anding Zhang Xiyong Hou Mingjie Li Yingxiao Xia 

作者机构：Department of Geography and PlanningLudong UniversityYantaiP.R.China Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantaiP.R.China Optical Remote Sensing DepartmentInstitute for Coastal Research of Helmholtz-Zentrum GeesthachtCenter for Materials and Coastal ResearchGeesthachtGermany Branch of Yantai Land and Resource BureauMupingP.R.China 

出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)

年 卷 期：2013年第6卷第S2期

页      面：137-154页

核心收录：

学科分类：02[经济学] 0202[经济学-应用经济学] 0708[理学-地球物理学] 0835[工学-软件工程] 0704[理学-天文学] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This study was supported by the Knowledge Innovation Program of the Chinese Academy of Sciences(No.kzcx2-yw-224) the National Natural Science Foundation of China(No.40801016) the Natural Science Foundation of Shandong Province(No.ZR2009EM005). 

主　　题：land cover change urban sprawl multi-temporal remote sensing coastal city 

摘      要：The importance of accurately mapping and monitoring land cover changes over time is increasing,especially in rapidly growing coastal cities.In this study,three pairs of Landsat images of Yantai,a representative coastal city in China,from 1989,1999,and 2009 were selected to monitor land cover changes and urban sprawl dynamics.To improve the classification accuracy,three classification methods together with the minimum noise fraction(MNF)and pixel purity index(PPI)calculations were performed on the images.The classification results showed that the overall five-class classification accuracies averaged 91.38%for the 20-year period,which produced an accuracy of 83.78%for change maps.The analysis of change maps indicated that from 1989 to 2009,the percentage of urban area increased from 31.41%to 50.28%of the total area,and the newly urbanized area was mainly located in residential areas and the reclaimed harbor region.Analysis of the relationships between urban area and its driving forces obtained from statistical data found that the urban sprawl of Yantai before 2000 was relatively extensive,which is consistent with the conclusion drawn by using remote sensing techniques.The research results could be used as inputs for sustainable urban management and establishing Digital Earth database.