In this paper, we give the theorems of dynamic system as well as applications in the ecosystem and the management system by the qualitative analysis for the state equations.
本文通过对状态方程的定性分析，给出关于离散动态系统的若干定理，以及在生态系统与管理系统中的应用。
The vulnerability assessment of water resources is comprehensive analysis of water resources ecosystem, including the supply and demand of water resources.
气候变化下水资源脆弱性评估是水资源系统的综合评估，主要包括水资源供给与需求平衡的评估。
Based on detailed analysis of the advance for ecosystem service function and its value assessment, the connotation and definition of Marine ecosystem is discussed.
本文在系统分析生态系统服务功能及价值评估的研究进展基础上，探讨了海洋生态系统服务功能的内涵。
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