seasonal soil frozen

The existence of the seasonal frozen soil layer provides a favorable environment for the formation of the artificially frozen wall; also it changes the wall's configuration.

季节冻土层中的地温呈非线性分布，改变了冻土墙形成时的初始温度条件以及形成后的结构形式。

In this paper, a theory of non-equilibrium thermodynamics is applied to the ecologic system offorest in zone of deep seasonal frozen soil on Mt. Maxian.

本文采用非平衡态热力学理论，研究兰州马衔山深季节冻土区的森林生态系统，从研究森林演替入手得出生态环境演变的规律。

The results are of practical meaning to improve soil thermal regime and guide agricultural production in seasonal frozen districts.

研究结果对于改善季节性冻土区土壤热状况，指导农业生产具有实际意义。