摘要
以五常市2005、2010、2015年LandsatTM影像为主要数据源,在RS和GIS支持下,借助土地利用时空演变模型,探讨研究区域10a间土地利用格局时空演化规律和特征,基于CA-Markov模型模拟研究区域2020年土地利用空间格局,以期为其土地资源合理利用和可持续发展提供理论依据和技术参考。结果表明:①2005—2015年耕地增加394.91km^2,居民建筑用地增加74.81km^2,林地减少517.49km^2,林地→耕地是主要土地利用转变类型;②耕地保留率高,林地次之;③2015年土地利用模拟结果和实际解译数据十分吻合,Kappa系数为0.9006。
The study took the LandsatTM images of 2005, 2010 and 2015 in Wuchang City as the main data sources, with the support of RS and GIS technique, using the spatial and temporal evolution model, the temporal and spatial evolution law and characteristics of land use pattern in the study area were analyzed, on this basis, the CA-Markov model was applied to simulate the spatial pattern of land use in 2020 in this paper ,which provided theoretical basis and technical supports for the rational use and sustainable development in the study area. The results showed that:①During 2005-2015, the cultivated land and residential land increased to 394.91 km^2 and 74.81 km^2 ,respectively, the area of the forest land decreaed to 517.49 km^2. The transformation from forest land to cultivated land was the major land use change of the study area;②Retention rate of cultivated land was higher than that of other land use, followed by forest land;③Land use simulation in 2015 were in good agreement with the actual interpretation data with the kappa coefficient of 0.900 6.
作者
龚文峰
王鑫鑫
曹凯华
周莹
吴娟
GONG Wen-Feng;WANG Xin-Xin;CAO Kai-Hua;ZHOU Ying;WU Juan(College of Hydraulic and Electric Power, Heilongjiang University,Harbin 150080,China;Heilongjiang Institute of National Deference Science and Technology, Harbin 150040,China)
出处
《黑龙江大学工程学报》
2019年第2期15-22,共8页
Journal of Engineering of Heilongjiang University
基金
黑龙江省自然科学基金资助项目(QC2017036)
