近30a来福州盆地中心的城市扩展进程  

Urban Expansion Process in the Center of the Fuzhou Basin,Southeast China in 1976-2006

作　　者：徐涵秋[1] 

机构地区：[1]福州大学环境与资源学院,福州大学遥感信息工程研究所,福建福州350108

出　　处：《地理科学》2011年第3期351-357,共7页Scientia Geographica Sinica

基　　金：国家自然科学基金项目(40371107);福建省教育厅重点项目(JK2009004)资助

摘　　要：位于福州盆地中心的福州市在城市化进程的推动下,城市空间快速扩展。利用多时相遥感影像和IBI建筑用地指数获得的建筑用地信息表明,福州市建成区在1976～2006年的30 a间面积增加了105 km2,增幅达到3.2倍。由于金山、快安等新城区的形成和马尾区的扩展,整个福州城区从西到东几乎连成一片,城市扩展经历了先慢后快,先北、后东、西的扩展历程。研究发现,福州城市的空间扩展并不属于工业主导型,而是第三产业推动型。城市空间的快速扩展已给福州带来了一定的环境资源问题,其中最突出的就是城市热岛效应与城市建筑用地总量控制问题。Urban expansion in which non-urban land use converted to urban land use is an important aspect of urbanization.With the progress of urbanization,Fuzhou City,located in the center of the Fuzhou Basin,Southeast China,has witnessed a rapid urban expansion process.To reveal the dynamics of urban expansion,remote sensing technique was employed.The use of the index-based built-up index（IBI） and a supervised classification has extracted urban built-up land information of the city from multi-temporal Landsat MSS/TM images of 1976,1986,1996 and 2006.The results show that during the 30-year study period the urban built-up area of Fuzhou has increased from 33 km2 in 1976 to 138 km2 in 2006,a net increase of 105 km2.Due to the formation of the new urban areas such as Jinshan in the west and Kuai＇an in the southeast,and the fast growth of Mawei,the previously-dispersed urban areas of Fuzhou are almost connected with each other from west to east.The study also reveals that massive urban expansion took place mainly in the late 20 years after 1986.The urban growth has been slow in the first 10 years and fast in the late 20 years.The urban expanded to the north first,then to the east,and finally to the west,and was sprawled in a planar way rather than a linear way.Driving force analysis indicates that fast economic development,population increase,government decisions and terrain conditions are all factors contributing to the urban expansion of Fuzhou.Unlike many other rapid growing cities in the country,Fuzhou＇s urban expansion was mainly driven by the tertiary industry rather than the secondary industry based on the increase rate.The rapid urban growth of Fuzhou City has brought about environment and resources repercussions to the city.Among them,the most serious problem is the urban heat island phenomenon.The considerable increase in built-up land areas in the Fuzhou Basin has significantly altered the landscapes of the basin and the thermal environment of the city.As a result,the whole basin in 2006 was almost in a hea

关 键 词：城市扩展 遥感信息提取 IBI指数 驱动力 福州 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置] X16[自动化与计算机技术—控制科学与工程]