基于GIS与RS的城市绿地动态变化及驱动力分析  

Analysis of the Urban Green Dynamic Change and the Driving Force Based on GIS and RS

作　　者：李江平[1] 许捍卫[1] 顾祖新 

机构地区：[1]河海大学地球科学与工程学院,江苏南京211100 [2]安徽大学资源与环境工程学院,安徽合肥230601

出　　处：《地理空间信息》2017年第8期53-56,共4页Geospatial Information

基　　金：国家自然科学基金资助项目(41101374);水利部公益性行业科研经费专项(201201025)

摘　　要：基于景观生态学原理与方法,运用RS与GIS技术对合肥市近20 a的城市绿地景观格局动态变化及驱动因素进行分析。结果表明,1995~2014年间,合肥市土地利用结构发生巨大变化,其中城市绿地面积连续增加,所占比例由12.3%上升至25.8%。城市绿地景观格局也有着明显变化,城市绿地斑块数和斑块密度有所增加,破碎化程度加强;而2002~2014年,城市绿地斑块数和斑块密度均表现为下降趋势,表明城市绿地斑块分布趋于聚集。Based on the principle and method of landscape ecology,this paper used RS and GIS technologies to analysis the dynamic changes and driving factors of urban green space landscape pattern of Hefei City in recent 20 years.The result shows the land use in the study area changed dramatically from 1995 to 2014.Among them,the urban green space area is continuously increasing,accounting for the proportion of the study area increased from 12.3% in 1995 to 25.8% in 2014.At the same time,the landscape pattern of urban green in Hefei City changes obviously.From 1995 to 2002,the number and the density of urban green patch were increased,which indicated that the fragmentation was worsened,and from 2002 to 2014,the number and the density of urban green patch showed a downward trend,which indicated that urban green space pattern became aggregation in the study area.The main factors of the urban green dynamic changes are human factors,including urban population growth,rapid economic development and related forestation policy execution,etc.

关 键 词：城市绿地 景观格局 遥感 地理信息系统 

分 类 号：P208[天文地球—地图制图学与地理信息工程]