中文摘要：

通过构建城市用地扩张的生态环境效应综合评价模型“EU-P-S-R”,深入分析2001-2013年松花江流域城市用地扩张的生态环境效应,并揭示二者之间相互作用的驱动机制。结果表明：1研究期内,松花江流域城市经济社会发展迅速,但空间分布不均衡;土地利用状态趋于恶化,空间差异扩大;生态环境质量发展趋势各异,空间格局变化较大。2城市用地扩张的生态环境效应综合指数呈递增趋势,空间差异不明显。3松花江流域城市扩张与生态环境之间的因果关系符合“EU-P-S-R”模型的作用机理,即用地扩张压力大的城市土地利用状态相对较差,相应地,生态环境质量也偏低。4城市用地扩张系统与生态环境系统各要素间均存在较强的相互作用关系,各要素作用力大小略有差异。

英文摘要：

Increasing evidence indicates that blind expansion of urban area has caused significant ecological environment problems. Therefore, it is important to explore the complex interaction between urban expansion and ecological environment change. Here, we built a comprehensive evaluation index system, ＂The P-S-R model for the Eco-environment Effect of Urban Expansion （EU-P-S-R）＂, to evaluate eco-environment effect of urban expansion in the Songhua River Basin from 2001 to 2013, and then explored the driving mechanism of interaction between the urban expansion system and the eco-environment system. This evaluation index system was built based on the ＂Pressure-State-Response （P-S-R）＂ function, considering the expansion pressure, expansion state and the eco-environment response for expansion. The results showed that： Firstly, these cities achieved rapidly economic and social development, but spatially unbalanced. Most of them experienced the deterioration of land use status, and their spatial difference enlarged. Besides, their eco-environment quality showed different variation trends, and the spatial pattern changed dramatically. Secondly, the comprehensive eco-environment effect index of urban expansion increased, but the spatial difference was not remarkable due to combined benefits of economic and social pressures, land use status, and eco-environmental response. Thirdly, the casual relationship between urban expansion and eco-environment of the study area accorded with the mechanism of ＂EU-P-S-R＂ model, namely, the greater the socio-economic pressure, the worse the land use condition, thus the worse the eco-environmental quality. Fourthly, all factors in the urban expansion system have strong stress effect on the eco-environment system. There was no obvious difference between the influence of the four functional groups： economic development, social development, space expansion status and intensive land use, and the stress dwindled during the research period. In the same way, each functional g