中文摘要：

为了研究信访在我国环境保护制度构建中的作用，应用逻辑推理方法，研究中国实行环境公益诉讼的条件，结论认为：信访的固有特征使其成为解决环境争议的一种有效机制。将信访适用于环境保护领域，可以缓解中国环境法制不健全所带来的压力，而公民的环境权理论、公众参与原则、行政信访的宪法基础为信访在中国环境保护中的适用提供了理论依据。中国还需要从制度上建立和完善环境信访制度。

英文摘要：

Since the system of environmental public welfare suits has not been established in China, it is necessary to build and strengthen the system of letters and visits of environment. Because of its features, this system becomes one of solutions to environmental disputes. Its use in the environmental protection may reduce the stress of the incompleteness of environment＇s legal system in China. The theory of public environmental rights, the principle of public participation and the constitutional basis of the administrative letters and visits provide the theoretical principle for our environmental orotection. Besides, it is necessary to build and improve the system of environmental letters and visits.