2010—2020年江西省都昌县土地利用及景观格局演变研究  

Evolution of Land Use and Landscape Pattern in Duchang County,Jiangxi Province,20102020

作　　者：多玲花 张明[2] 赵昱茜 江会楷 DUO Ling-hua;ZHANG Ming;ZHAO Yu-xi;JIANG Hui-kai(Jiangxi Ecological Civilization Construction System Research Center,East China University of Technology,Nanchang 330013,China;School of Geomatics,East China University of Technology,Nanchang 330013,China;Key Laboratory of Mine Environmental Monitoring and Improving around Poyang Lake,Ministry of Natural Resources,Nanchang 330013,China)

机构地区：[1]东华理工大学江西生态文明建设制度研究中心,江西南昌330013 [2]东华理工大学测绘工程学院,江西南昌330013 [3]自然资源部环鄱阳湖区域矿山环境监测与治理重点实验室,江西南昌330013

出　　处：《东华理工大学学报（自然科学版）》2022年第5期485-493,共9页Journal of East China University of Technology(Natural Science)

基　　金：东华理工大学江西生态文明建设制度研究中心项目(JXST2103);江西省研究生创新项目(YC2022-s606);江西省社科基金“十四五”(2021年)地区项目(21DQ44);江西省教育厅科学技术研究项目(GJJ210723)。

摘　　要：探讨土地利用与景观格局的演变规律,有利于深层次揭示人地关系,对区域的协调发展具有重要的指导意义。基于2010、2015和2020年遥感数据和GIS技术,利用土地利用变化模型和景观格局指数法,从土地利用结构、间隔层次、转移矩阵三个层次和景观破碎化、多样化、类型指数三个角度出发,对都昌县土地利用及景观格局演变特征进行系统的多维度分析。结果表明,2010-2020年都昌县耕地和草地呈现缩减态势,其中耕地面积减少248.36 km^(2),未利用地和建设用地呈现增长趋势,其中建设用地增加84.05 km^(2)。景观多样性指数呈上升趋势,林地、建设用地和水域的斑块密度保持稳定增速,耕地最大斑块指数连续下降的同时斑块个数整体上升,表明耕地景观破碎化程度增高,耕地存在被侵占问题。因此,都昌县在未来国土空间规划中需确保耕地占补平衡,控制建设用地扩张并提高其集约利用率,以促进土地开发利用和生态文明建设的和谐发展。Exploring the evolution pattern of land use and landscape pattern is conducive to revealing the human-land relationship at a deep level and has important guiding significance for coordinated regional development.Based on the remote sensing data and GIS technology in 2010,2015 and 2020,a systematic multidimensional analysis of the evolution characteristics of land use and landscape pattern in Duchang county was carried out from three levels of land use structure,interval level and transfer matrix and three perspectives of landscape fragmentation,diversification and type index by using the land use change model and landscape pattern index method.The results showed that between 2010 and 2020,the arable land and grassland in Duchang county showed a reduction trend,with the arable land area decreasing by 248.36 km^(2).The unused land and construction land showed an increasing trend,with construction land increasing by 84.05 km^(2).The landscape diversity index showed an increasing trend.The patch density of forest land,construction land and watershed maintained a steady growth rate.While the maximum patch index of cultivated land decreased continuously,the number of patches increased as a whole,indicating that the degree of landscape fragmentation increased and cultivated land was occupied.Therefore,Duchang county needs to ensure a balance between arable land occupation and replenishment in future territorial spatial planning,to control the expansion of construction land,and to improve its intensive utilization rate,so as to promote the harmonious development of land development and utilization and ecological civilization construction.

关 键 词：土地利用变化 景观格局指数 都昌县 

分 类 号：F301.2[经济管理—产业经济]