城镇化过程土地利用变化及效应研究进展

Research progress on urban land use/cover change and its eco-environmental effects in urbanization process

城镇化最显著的特征之一是土地利用变化,并引起了各类生态环境效应。从城市土地利用变化的压力驱动机制与模型,水环境效应、土壤环境效应、景观格局效应、碳排放效应及生态系统服务效应等方面进行了分析与讨论。发现现有研究对城镇化压力及驱动机制探讨、个案分析较多,内在机理分析不足。土地利用变化导致的状态效应研究较多,但尺度单一;也存在具体案例分析多,内在机理规律总结少的问题;长时间序列、多因素、多尺度耦合研究相当缺乏。文章最后提出在"时-空-量-序-构"各层面与城市区域独有特性相结合的以远程耦合(Tele-coupling)方法开展可持续性的城市土地变化科学(URB-LCS)研究。

One of the most significant features of urbanization is land use/cover change, which can cause a series of eco-environment effects. We analyzed pressures of land use/cover, water environmental effects, soil environmental effects, landscape pattern effects, carbon emissions effects and ecosystem services effects. These results show that current studies always just explore urbanization pressures and driving forces based on case studies, while analysis on internal mechanisms is inadequate. In addition, most current studies focused on effects of land use/cover change with single scale, and are lack of multi-scales coupling researches with long time series and multi-factors. Finally, we propose that sustainable urban land change sciences （URB-LCS） should be developed based on the tele-coupling combing ＂Temporal-Spatial-Quantity- Order-Structure＂ with the special urban characteristics.