交通要素驱动下的长春市土地利用时空变化

Changchun Land Use Spatio-Temporal Variation under the Transportation Elements' Driving

利用长春市1995、2005和2009年遥感影像图及相关统计数据,通过GIS空间分析及SPSS统计分析方法,总结14年长春市交通演变规律以及三个时间段内土地利用类型变化特征,并进一步分析长春市交通与土地利用时空变化关系。研究认为:11995—2009年交通对城市土地扩展具有一定的制约作用,便利的交通条件为生产要素的外迁以及建设用地的扩张提供良好的基础环境;2沿交通干线建设用地与耕地扩张呈现明显的廊道效应,城市建设用地的扩张和耕地的流失与交通线的距离关系越来越密切,距交通沿线距离越近,建设用地所占比重逐渐增加,反之建设用地所占比重逐渐减少;3长春市建设用地的扩张主要沿对外交通和城市主干道发展,交通干线成为建设用地的主要扩展轴。交通要素成为城市土地利用变化的一个重要驱动因子。交通干线不断延伸,造成建设用地盲目扩张,耕地逐渐流失。因此,长春市未来发展中应适当优化城市交通建设格局,稳定土地利用时空变化速率,以推动城市实现可持续发展。

According to1995, 2005 and 2009 remote sensing image and relevant statistical data of Changchun, summarize14 years of traffic evolution and land use change characteristics of three period, and further analysisthe relationship between the transportation and land use spatio- Temporal variation in Changchun. studies suggest that：（1）1995- 2009 Transportation has some restraining effect on urban land expansion,convenient traffic conditions provide a good foundation environment for therelocation of production factors and the expansion of construction land;（2）expansion of construction land and arable land along traffic arteriesshowed significantcorridor effect, the relationship between transit and expansion of construction land and the loss of arable land are getting closer, closer distance along the traffic, the proportion of construction land increasing, Conversely the proportion of construction land reduce gradually;（3）expansion of construction land in Changchun major development alongoutbound traffic and urban roads, transportation routes become a major expansion shaft of the construction land. Transportation elementsbecome an important driving factor of urban land use change. traffic arteries continue to extend, causing the blind expansion of construction land,arable land loss gradually. therefore, the future development of Changchun city transportation construction should be optimized structure properly, stable the rate of land use change, to promote urban achieve sustainable development.