快速城市化进程中景观格局时空分异特征及影响因素  

Spatial-Temporal Variation of Landscape Patterns in the Rapid Urbanization Case of Liangjiang New Area in Chongqing

作　　者：李玉华[1] 章明 

机构地区：[1]重庆市国土资源和房屋勘测规划院,重庆400020 [2]重庆欣荣土地房屋勘测技术研究所,重庆400020

出　　处：《国土资源科技管理》2015年第4期141-150,共10页Scientific and Technological Management of Land and Resources

基　　金：国家"十二五"科技支撑计划(2012BAJ22B06)

摘　　要：以重庆市两江新区为研究对象,利用2000,2004,2009和2012年4期TM遥感影像,研究近10年来重庆两江新区景观格局时空分异特征,探讨景观格局时空变化与城市化之间的联系。研究结果表明:12000—2012年期间,两江新区呈现出以水田、旱地景观类型为主,城镇村及工矿用地、林地景观分布集中;研究时段内,该区域水田、旱地面积急剧下降,城镇村及工矿用地面积快速增加;2城镇村及工矿用单一动态度绝对值最大,2009—2012年所有土地利用类型单一动态度值显著增加,且在2009年土地利用综合动态度由慢速变化型转换为快速变化型;3景观尺度指数在2004年变化趋势均出现转折,在2009—2012年间各景观指数值显著增加,受两江新区快速城市化高强度的人类活动影响显著,且变化速度远超过一般城市化速度;4利用CA-Markov模型预测研究区2020年新增建设用地主要分布在东南以及西北,且都朝东北方向进行延伸;5城市化进程加快,人口增加以及两江新区实施的优惠经济政策是景观格局变化的主要驱动力,并会在未来一段时间对研究区的景观格局产生持续影响。Using 3S technique,surveying and statistical analysis,this study took the landscape pattern changes of Liangjiang New Area as a case study.The study discussed the characteristic of spatial-temporal of landscape,and examined the relationship between the process of a typical rapid urbanization and landscape spatial-temporal patterns during the period from2000 to 2012.The results show that① during the 2000 to 2012 year,the main landscape types was paddy field and dry landscape in Liangjiang New Area,distribution of urban village and industrial land and woodland was concentrated.During the time of research,the area of paddy field and dry landscape sharply declined,and the area of urban villages,industrial land and woodland skyrocketed;②the maximum absolute value of single dynamic degree was urban village and industrial land use,while the value of single dynamic degree of all land use had increased from2009 to 2012,and the dynamic degree of comprehensive land use suggests that change of land use has convert to rapid one;③variation tendency of Index of landscape scale in study area has changed in 2004,including the edge density,landscape fragmentation,degree of aggregation;landscape index significantly increased from2009 to 2012,indicating that landscape was obvious influenced by high intensity of human activity;④the land use of study area of 2020 was predicted based on CA_Markov module,with the prediction that newly increased urban village and industrial land are mainly distributed in the southeast and northwest of research area,extending northeastward;5）rapid urbanization,increasing population and economic policy of Liangjiang New area was the main driving force of landscape pattern change in the study area,and will have a sustained impact on land use change in research region in the future.

关 键 词：快速城市化 景观格局 时空分异 两江新区 

分 类 号：P271[天文地球—测绘科学与技术]