In order to explore sustainability of Tianjin, according the theory of resource productivity, through establishing decomposition efficiency of resource mode, we gave the relationship between environment stresses. The result showed that the overall resource productivity was rising; 493 Yuan/t in 2011, 614 Yuan/t in 2009, but the growth rate of resource productivity (RP) is less in GDP, indicating that the.direct material consumption knock-on effects are greater than the rate of resource production increase caused by reduction effect of Tianjin between 2000 to 2009, Tianjin experienced the process of "Expansive Re-linking" ," Weak De-linking" ,"Expansive Re-linking" indicating that Tianjin is not in the state of sustainable development.%为了探讨天津市可持续发展能力,依据资源生产率理论,通过建立资源利用效率分解模型,给出了经济增长与环境压力之间的相互关系,结果显示天津市的资源生产率总体呈上升趋势,由2001年的493元/吨上升到2008年的614元/吨,但是资源生产率(RP)的增长率小于GDP的增长率,表明2000 - 2009年天津市经济增长所带来直接物质消耗的反弹效应均大于资源生产提高率所带来的减量效应,经历了扩张性“复钩”——弱“脱钩”——扩张性“复钩”3个阶段,说明天津市发展处于不可持续状态.
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