中文摘要：

在环境控制技术与环境政策既定的情况下，环境政策的执行情况决定了环境监管的效果。本文使用弹簧模型研究并证实了政治关联缓冲的存在，研究结论认为政治关联缓冲导致中央政府环境政策具体执行效果不佳。为了阻断地方政府与部分被规制企业之间的政治缓冲作用，本文采用建立地方政府环境业绩评价机制从长远的角度解决环境规制的软约束问题。

英文摘要：

With the given environmental control technology and environmental policy, the implementing of environmental policy determines the effect of environmental regulation. The spring theory model is used to prove existence of the political connection buffer, and the conclusion is that the political connection buffer leads to a bad effect of environmental policy. In order to break political connection buffer effect between the local government and some regulated firms, the environmental performance appraisal system towards local governments is implemented to resolve the soft constraints of environmental regulation in the long run.