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。
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.
本文对生态建设规划进行了有益的探讨，设计理论以近自然林业理论为主结合生态学、景观生态学的要求，追求符合演替理论；
Based on the theory of close nature forestry and the requirement of ecology and landscape ecology the paper studies the ecological management plan that is suitable for succession theory.
本文对生态建设规划进行了有益的探讨，设计理论以近自然林业理论为主结合生态学、景观生态学的要求，追求符合演替理论；
Based on the theory of close nature forestry and the requirement of ecology and landscape ecology the paper studies the ecological management plan that is suitable for succession theory.
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