开发政策视角下武汉1973—2018年湖泊时空演变研究  

Temporal-Spatial Evolution of Lakes in Wuhan from 1973 to 2018 from the Perspective of Development Policy

作　　者：詹庆明[1,2] 李荣 詹萌[1,2] 高思航 ZHAN Qingming;LI Rong;ZHAN Meng;GAO Sihang(School of Urban Design,Wuhan University,Wuhan 430072,China;Research Centre for Digital City,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学城市设计学院,湖北武汉430072 [2]武汉大学数字城市研究中心,湖北武汉430072

出　　处：《测绘地理信息》2022年第6期1-6,共6页Journal of Geomatics

基　　金：广东省重点领域研发计划(2020B0202010002);国家自然科学基金(52078389,51878515)。

摘　　要：选取武汉市1973—2018年的遥感影像,提取湖泊水体及土地利用信息,探讨武汉市湖泊时空演变特征及其受到城市开发建设影响的作用规律。研究结果表明:(1)45年间,武汉市湖泊面积整体呈现下降趋势,并可分为1973—1990年面积锐减阶段、1991—2005年持续减少阶段、2006—2018波动向好阶段。(2)武汉市湖泊面积变化规律呈现明显的空间异质性,都市发展区和远城区水体面积下降幅度远大于中心城区;不同圈层湖泊面积快速萎缩的发生时期差异明显,和城市发展阶段相适应。(3)典型湖泊水体面积的减少与周边建设用地的增多在时间上呈现同步性,且与所在区域城市发展定位和相应的政策支持关系紧密。(4)城市湖泊面积变化的时空异质特征和城市开发的不同阶段相适应。城市不同发展阶段对城市土地制度的要求不同,进一步影响了城市用地开发的模式,最终体现在城市湖泊水体面积时空变化上。The paper selects the remote sensing image of Wuhan from 1973 to 2018 to extract the information of lake water body and land use,and discusses the spatial and temporal evolution characteristics of Wuhan lakes and the law of its influence on urban development and construction.The main findings are as follows:(1)In the 45 years,the lake area of Wuhan has a downward trend,which can be divided into the sharp reduction stage from 1973 to 1990,the continuous decrease stage from 1991 to 2005 and the good stage of fluctuation from 2006 to 2018.(2)The change law of lake area in Wuhan shows obvious spatial heterogeneity,and the decline of water area in urban development area and far urban area is much larger than that of central city;The rapid shrinking of lake area in different circles has obvious difference,which is suitable for the development of cities.(3)The decrease of water area of typical lakes is in synchronization with the increase of surrounding construction land in time,and is closely related to the development orientation of the city and the corresponding policy support in the region.(4)The spatial and temporal heterogeneity of the change of urban lake area is suitable for different stages of urban development.The different requirements of urban land system in different stages of urban development further affect the mode of urban land development,which is reflected in the spatial and temporal changes of urban lake water area.

关 键 词：城市开发模式 政策视角 城市湖泊 时空演变 

分 类 号：P208[天文地球—地图制图学与地理信息工程]