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1980-2005年太湖地区土地利用变化及驱动因素分析
引用本文:肖思思,吴春笃,储金宇.1980-2005年太湖地区土地利用变化及驱动因素分析[J].农业工程学报,2012,28(23):1-11.
作者姓名:肖思思  吴春笃  储金宇
作者单位:江苏大学环境学院,镇江 212013
基金项目:国家自然科学基金(41101160);国土资源部公益性行业科研专项经费项目:土地利用规划的碳排放效应与调控研究(200811033);江苏省国土资源厅"江苏省环太湖地区国土资源承载力及调控措施研究"项目;江苏大学高级专业人才科研启动基金项目(08JDG042)
摘    要:为了定量化研究土地利用变化特征及其驱动因素,该文应用遥感和GIS技术,分析江苏省环太湖地区1980-1990年、1990-2000年、2000-2005年3个不同时段土地利用的数量变化特征及土地利用类型的空间转换特征,并对研究区各时段土地利用变化的驱动因素进行探讨。结果表明:25a江苏省环太湖地区土地利用类型发生了复杂变化,3个不同时段土地利用变化特征各不相同且具有明显的区域差异性;区域土地利用程度持续增加,土地利用仍处于发展期;从土地利用类型转移变化看,建设用地转入的速度远大于转出的速度,有规模增加的趋势,而水田、旱地、林地的转入速度小于转出速度,存在规模减少的趋势。人口数量的增加、工业化、城市化带来的经济发展与土地管理政策等人类活动是江苏省环太湖地区土地利用类型转换的主要驱动因素。尽管近年来江苏省环太湖地区的土地开发利用取得了巨大的经济收益,但部分人类经济活动给区域农业的发展及土地资源的可持续利用带来巨大压力,甚至导致以水田为主的区域耕地资源质量的进一步退化。该研究为江苏省环太湖地区土地资源的可持续利用及人-地关系的协调发展提供科学依据。

关 键 词:土地利用  遥感  地理信息系统  驱动因素  太湖地区
收稿时间:6/8/2012 12:00:00 AM
修稿时间:2012/11/12 0:00:00

Land use changes and driving forces in Tai Lake regionfrom 1980 to 2005
Xiao Sisi,Wu Chundu and Chu Jinyu.Land use changes and driving forces in Tai Lake regionfrom 1980 to 2005[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(23):1-11.
Authors:Xiao Sisi  Wu Chundu and Chu Jinyu
Institution:(School of the Environment,Jiangsu University,Zhenjiang 212013,China)
Abstract:Studies on land use changes are one of the current research hotspots in man-land relationship. In order to promote coordinate development of man-land relationship between regions around Tai Lake in Jiangsu Province (RTLJP), land use change information of RTLJP in 1980, 1990, 2000 and 2005 were extracted by integrating Landsat-TM/CBERS images with remote sense software. Based on statistic method in conjunction with GIS, characteristics of land utilization quantity changes and that of land use conversion in three periods (1980-1990, 1990-2000, 2000-2005) of RTLJP were revealed. Furthermore, driving forces of land use changes in three periods were discussed. The results showed that lots of land use types took place complicated changes and converted between each others for 25 years. Meanwhile, the spatial- temporal characteristics of land use changes were different in three different periods. From 1980 to 1990, paddy field, water area and forest land were the main land use types, and the conversion from paddy field, forest land to construction land, and from forest land, dry land to paddy field were the main types and accounted for 87.21% of all land use types conversion. From 1990 to 2000, paddy field, water area and construction land were the main land use types, and the conversion from paddy field to construction land, dry land, water land, and from forest land, water land to paddy field were the main types and accounted for 80.18% of all land use types conversion. From 2000 to 2005, construction land and paddy field were the main land use types, and the conversion from paddy field to construction land, water area, grass land, forest land, from water area to construction land, and from water area, forest land to paddy field were the main types and accounted for 87.00% of all land use types conversion Regional land use degree was enhanced year by year, and finally was increased from 265.1 of 1980 to 299.9 of 2005. Land use was still in developing period. According to the changes of land use types conversion from 1985 to 2005, the entering speed of construction land was much greater than the exiting speed, which had the trend of a scale increasing. In the meanwhile, the entering speed of paddy field, dry land and forest land were less than the exiting speed, and presented a scale reducing trend. Human activities including population growth, economic development produced by industrialization and urbanization and land management policy were the main driving forces of land use changes of RTLJP. From the above, we can see that although RTLJP obtained great economic benefit because of land development, it faced degradation of the cultivated land resources, which challenged its coordinative and sustainable development of man- land relationship. This study quantitative defined the characteristics of land use change and their driving forces, and finally put forward a scientific reference for sustainable utilization of land resource and harmonious development of man-land relationship.
Keywords:land use  remote sensing  geographic information systems  driving forces  Tai Lake region
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