The environmental water demand is considered for scientific disposition and management and ecologicequilibrium.
必须合理预留生态环境需水，以实现水资源的科学配置和有效管理，维持生态平衡。
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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.
The paper discusses the water demand volume for ecologic system equilibrium including the minimum water demand volume for water living things in lake and river;