【摘要】 该文基于水-碳-生态足迹和IPAT-LMDI扩展模型，探究了京津冀城市群水资源-能源-土地资源系统的物质代谢强度及驱动因子，并结合DEA-SBM模型和Malmquist指数剖析了城市群物质代谢效率的演变特征。研究结果表明：城市群水资源代谢强度有所放缓，能源代谢强度在2013年出现拐点后逐渐降低，而土地资源代谢强度则在2007年后逐渐增加；城市群及不同功能区的整体物质代谢压力指数均值超过50，基本处于不可持续状态。经济富裕程度与人口规模是物质代谢压力指数增加的主要原因，科技发展水平则具有反向抑制作用，生态环境缓解效应的影响具有空间差异性。城市群物质代谢效率增幅不显著，具有较大提升空间，中部核心区的代谢效率水平明显高于西北部生态涵养区。更多还原

【Abstract】 Based on the water-carbon-ecological footprints and IPAT-LMDI extended model, this study explores the material metabolism intensity and its driving factors of water-energy-land resources system in Beijing-Tianjin-Hebei urban agglomeration(BTHUA). Spatial-temporal evolution characteristic of material metabolism efficiency in BTHUA is then analyzed by combination of DEA-SBM model with Malmquist index. Results disclose that water resources metabolism in BTHUA slows down; energy metabolism intensity gradually decreases after the year of 2013 that is an inflection point;while land resource metabolism intensity gradually increases after the year of 2007. The comprehensive stress index of material metabolism(RPI) in urban agglomeration and different functional zones is higher than 50, which is basically in an unsustainable condition. The major reasons for the increase in RPI are economic affluence and population size; technological level has a reverse obstruction effect, and spatial differences could be found in the impact of ecological mitigation effect.The increase in material metabolism efficiency of BTHUA is insignificant, and there is significant room for improvement.The metabolic efficiency level of the central core areas is significantly higher than that of the northwest ecological conservation areas.更多还原