Liudina i dovkillia Problemi neoekologiyi最新文献

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Method for analyzing the vulnerability of water resources in an unstable environment based on the entropy approach 基于熵法的不稳定环境下水资源脆弱性分析方法

Liudina i dovkillia Problemi neoekologiyi

Pub Date : 2023-06-26 DOI: 10.26565/1992-4224-2023-39-06

V. L. Bezsonnyi

Purpose. The synthesis of the method of analyzing the vulnerability of water resources based on the entropy of the connection based on the determination of the factors of the water system, considering the relationship between the anthropogenic socio-economic system and the "man-environment" system and the analysis of the transformation processes of the water system in a changing environment. Results. The mechanism of vulnerability of water resources in a changing environment is analyzed. The structure of the vulnerability of water resources is established based on sensitivity, natural resistance and artificial adaptation by analyzing the four states of the water system: the sensitive state, the impaired state, the recovery state and the equilibrium state, and accompanying transformation processes. A method for analyzing the vulnerability of water resources based on contact entropy is proposed, which extends the concept of contact entropy. The degree of vulnerability of water resources to the changing environment can be divided into five levels with 11 indices: low (I), insignificant (II), moderate (III), high (IV) and extreme (V). Calculation of the contact entropy shows an approximate value of the contact entropy S with a range of (–1.314; 1.314). This interval is divided into five parts: [0.877; 1.314), [0.292; 0.877), [−0.292; 0.292), [−0.877; −0.292), (−1.314; − 0.877), indicating low (I), insignificant (II), moderate (III), high (IV) and excessive (V) degrees of vulnerability of water resources, respectively. Conclusions. The state of a water system usually changes from impaired to restored due to natural factors, followed by a transition from a state of restoration to a state of equilibrium mainly due to artificial factors. The first is defined as natural resilience, and the second as artificial adaptation. The results of this mechanism offer a necessary understanding of the vulnerability of water resources in a changing environment, the mechanism of the transformation process between the four states is the focus of further research.

目的。在确定水系统影响因素的基础上，综合考虑人为社会经济系统与“人-环境”系统的关系，分析环境变化中水系统的转型过程，提出了基于连接熵的水资源脆弱性分析方法。结果。分析了变化环境下水资源脆弱性的机理。通过分析水系统的敏感状态、受损状态、恢复状态和平衡状态，以及相应的转变过程，建立了基于敏感性、自然抵抗和人工适应的水资源脆弱性结构。在接触熵概念的基础上，提出了一种基于接触熵的水资源脆弱性分析方法。水资源对环境变化的脆弱性可分为低(I)、不显著(II)、中等(III)、高(IV)和极端(V) 5个等级，共11个指标。通过接触熵的计算，得到了接触熵S的近似值，其取值范围为(-1.314;1.314)。这个区间分为五个部分:[0.877;1.314), (0.292;0.877),[−0.292;0.292),[−0.877;−0.292),(−1.314;−0.877)，分别表示水资源脆弱性低(I)度、不显著(II)度、中等(III)度、高(IV)度和过高(V)度。结论。由于自然因素的影响，水系统的状态通常从受损状态转变为恢复状态，然后主要由于人为因素的影响，从恢复状态过渡到平衡状态。前者被定义为自然恢复力，后者被定义为人工适应。这一机制的研究结果为认识变化环境下水资源脆弱性提供了必要的依据，四种状态之间转化过程的机制是今后研究的重点。

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