生态与农村环境学报2017，Vol.33Issue(7)：592-599,8.DOI:10.11934/j.issn.1673-4831.2017.07.003
徐州市区土地利用格局变化分析及其空间扩张模拟
Analysis of Changes in Land Use Pattern in Xuzhou City and Simulation of Its Spatial Expansion.
摘要
Abstract
Urbanization is an important stage in the process of social development.However, with rapid development of the urbanization, urban land use has undergone tremendous changes in pattern, and consequently problems gradually emerge in urban land use.In order to solve the problems of disbalance of urban land-use in pattern and uncontrolled spatial expansion of cities and towns, the land use pattern was analyzed and spatial expansion of the urban area of Xuzhou was simulated and predicted by means of interpretation of remote sensing images, spatial analysis and model simulation, in the hope that the prediction may provide some scientific bases for rational utilization of the land resources and government decision-making in future.Results show that: (1) Land use in various districts of Xuzhou City tends to be on a trend of agglomeration in pattern with urban spatial expansion and structural readjustment going on in parallel and taking the lead in growth of the total amount of GDP.As for the landscape pattern, patches will decline in fragmentation degree and get more concentrated in distribution;and the landscape is getting less in complexity and in number of types of internal plaques adjoining to other types.As regards to land use or land cover, cultivated farmlands, woodlands and unused lands around the urban area of Xuzhou City will keep on alienating into construction land, and the expansion of construction land tends to be heading toward northeast and east.(2) The spatial simulation shows that the spatial expansion of construction land around the urban area of Xuzhou City will be oriented towards northeast and east in 2016-2020, which is consistent with the direction of the existing land use and urban planning.Predicted scale of the spatial expansion varies from area to area, showing a decreasing order of 4 126.23 hm2 in the northeast > 3 203.01 hm2 in the east > 2 723.22 hm2 in the northwest > 2 600.91 hm2 in the south > 2 203.11 hm2 in the southeast > 2 150.64 hm2 in the southwest > 1 834.83 hm2 in the west > 1 565.91 hm2 in the north.It is suggested that in future (at least in the five years to come), Xuzhou City should keep on accomplishing its key construction projects in the eastern and northeastern parts of the urban areas as predicted in order to achieve regional high-efficient sustainable development.关键词
遥感应用/景观格局/土地利用/CA-Markov模型Key words
remote sensing application/landscape pattern/land use/CA-Markov model分类
农业科技引用本文复制引用
郎文婧,李效顺,卞正富,曲福田..徐州市区土地利用格局变化分析及其空间扩张模拟[J].生态与农村环境学报,2017,33(7):592-599,8.基金项目
国家自然科学基金面上项目(71473249) （71473249）
国家自然科学基金重点项目(U1361214) （U1361214）
国家科技基础性工作专项重点项目(2014FY110800) （2014FY110800）
江苏省社会科学基金重点项目(15EYA002) （15EYA002）
