基于遥感的合肥市土地利用动态变化及其成因分析
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摘要
为促进城市土地资源的可持续利用,需对历史土地利用格局进行准确评估。笔者以合肥市近30年4期的高分辨陆地卫星遥感影像为主要数据源,在RS和GIS的支持下,分析合肥市土地利用格局的动态演变,探讨了合肥市土地利用变化的驱动因子。结果表明,20世纪70年代到80年代末,合肥市土地利用相对变化较为平缓;而90年代到2007年,土地利用变化最为显著,以耕地为主的土地资源严重减少,城镇、工交用地显著增加;城市工业现代化进步的同时,人增地减的现象日趋严重。合肥市土地利用类型变化主要表现为非城市土地利用类型向城市土地利用类型转变,其土地格局演变主要受人口、经济、政策、交通等诸多因子的影响。
Precisely evaluating the historical land use is of great importance to promote sustainable usage of urban land resources.Based on nearly 30 years 4 periods high-resolution landsat satellite remote sensing data,and supported by RS and GIS,the spatio-temporal characteristics of land use change in Hefei area were analyzed,also the drive factors of land use change were discussed.The results showed that between 1970s and 1980s,the land use change was relatively slow,while after 1990s,the change became more apparent: the area of cropland was seriously reduced,and the areas of urban,industry and traffic significantly increased.Accompanying with rapid progress on urban industrial modernization,the problems about land use area reduction and population increase became more and more severe.Over all,the transformation from non-urban land use to urban land use was the major characteristic of land use change in Hefei city,and it was affected mainly by the population,economy,politics,transportation and many other factors.
Precisely evaluating the historical land use is of great importance to promote sustainable usage of urban land resources.Based on nearly 30 years 4 periods high-resolution landsat satellite remote sensing data,and supported by RS and GIS,the spatio-temporal characteristics of land use change in Hefei area were analyzed,also the drive factors of land use change were discussed.The results showed that between 1970s and 1980s,the land use change was relatively slow,while after 1990s,the change became more apparent: the area of cropland was seriously reduced,and the areas of urban,industry and traffic significantly increased.Accompanying with rapid progress on urban industrial modernization,the problems about land use area reduction and population increase became more and more severe.Over all,the transformation from non-urban land use to urban land use was the major characteristic of land use change in Hefei city,and it was affected mainly by the population,economy,politics,transportation and many other factors.
引文
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[3]Gregorio A,Jansen L.Land Cover Classification System[M].Rome:FAO,2000:113-118.
[4]张新长,梁金成.城市土地利用动态变化及预测模型研究[J].中山大学学报:自然科学版,2004,43(2):121-125.
[5]摆万奇,赵士洞.土地利用变化驱动力系统分析[J].资源科学,2001,23(3):39-41.
[6]陈文惠.福州土地利用变化及其驱动力多元综合分析[J].地球信息科学,2005,7(3):45-50.
[7]王三,赵伟,黄春芳.基于遥感的重庆市土地利用动态变化研究[J].中国农学通报,2010,26(2):250-256
[8]白晓娟,赵雨森.基于RS与GIS的哈尔滨市土地利用格局演变及其预测研究[J].林业资源管理,2010,4(2):102-106
[9]谢宏全,胡振琪.论基于遥感的矿区土地利用/覆盖分类体系[J].辽宁工程技术大学学报,2004,23(6):751-753.
[10]赵伟,谢德体,刘洪斌.基于PSR的重庆市“一小时经济圈”生态环境综合评价[J].长江流域资源与环境,2009,18(6):568-573.
[11]肖靖,于伟,魏娜,等.基于RS和GIS技术的常熟市土地利用动态变化研究[J].安徽农业科学,2007,35(31):10150-10154.
[12]潘洪义,门明新,许皞,等.基于RS与GIS的城市化进程中唐山市土地利用动态变化研究[J].安徽农业科学,2007,35(6):1676-1678.
[13]池建,宁镇亚.常熟市土地利用变化及其驱动力分析[J],资源环境与发展,2008(4):8-11
[14]邵全琴,孙朝阳,刘继远,等.中国城市扩展对气温观测的影响及其高估程度[J].地理学报,2009,64(11):1292-1302.
[15]高红燕,蔡新玲,贺皓,等.西安城市化对气温变化趋势的影响[J].地理学报,2009,64(9):1093-1102.
[16]安徽省统计局.安徽统计年鉴(1962—2009)[M].北京:中国统计出版社,1970—2009.
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