摘要
城市边缘区是城市建成区和农村地域之间的过渡区域,其特征是城市建设用地侵入农业用地而形成的土地利用犬牙交错状态和用地景观的破碎化。基于2015年西安城区及其邻近区域的Landsat TM影像,参考同时期的Google Earth影像,分类、解译得到该地区土地利用数据;作者结合西安城市化空间发展态势,参考西安市各街道建设用地面积比重、耕地面积比重和景观破碎度指数,确定了西安城市边缘区的界线,得到西安城市边缘区土地利用数据集(2015)。数据结果表明,西安市城市边缘区包括隶属于灞桥区、长安区、雁塔区、未央区和沣东新城的25个街道,土地利用类型以建设用地、耕地、林地及其他用地为主。该数据集存储为.shp格式,由14个数据文件组成,数据量为8.11 MB(压缩为1个文件,4.78 MB)。基于该数据集的研究论文发表在《地理学报》2018年第73卷第6期。
The urban fringe is a transitional area between the urban built-up and rural areas.It is characterized by an interlaced state of land use and a fragmented landscape caused by the invasion of urban construction land into agricultural land.This dataset classified and interpreted Landsat Thematic Mapper(TM)images of the Xi’an urban area and its adjacent areas in 2015,referring to the Google Earth images in the same period to obtain the land use data.In combination with the spatial development trend of urbanization in Xi’an,we selected the proportions of construction land and farmland,and a landscape fragmentation index of each block in Xi’an to determine the boundary of the urban fringe(sub-urban area),and obtained a land use dataset of the urban fringe in Xi’an(2015).The results showed that the urban fringe of Xi’an included 25 blocks,belonging to the Baqiao,Chang’an,Yanta,and Weiyang districts and Fengdong New Town,and the land use types were mainly construction land,farmland,forest land,and other land uses.This dataset is archived in.shp format and consists of 14 data files,with a data size of 8.11 MB(compressed to one file,4.78 MB).The research paper based on the dataset was published in Acta Geographica Sinica(Vol.73,No.6,2018).
作者
王博
黄晓军
王晨
胡凯丽
Wang,B.;Huang,X.J.;Wang,C.1 Hu,K.L.(College of Urban and Environmental Sciences,Northwest University,Xi’an 710127,China;Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity,Xi’an 710127,China;Shaanxi Xi’an Urban Forest Ecosystem Research Station,Xi’an 710127,China)
出处
《全球变化数据学报（中英文）》
CSCD
2019年第4期382-386,489-493,共10页
Journal of Global Change Data & Discovery
基金
国家自然科学基金(41971178,41401138)
陕西省(SKLESS201807).
