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COMPARISON OF THE RESULTS OBTAINED BY THE PROPOSED METHODOLOGY FOR ENVIRONMENTAL RUNOFF WITH THOSE CALCULATED UNDER THE CURRENT REGULATION
Abstract
In climate change, drought, and water scarcity, the natural functioning of river systems largely depends on the proper distribution of water resources. Accurate determination of hydrological characteristics is essential for the sustainable management of water resources and provides information on the status and potential of water systems. Water management must be implemented in such a way as to meet the needs of man and the economy. At the same time, measures are taken to protect the quantitative characteristics of the aquatic environment. This means that water consumption must not exceed a particular limit value of the river flow - the ecological river flow. The development set determines the hydrological characteristics according to the methodology developed for determining the environmental flow for Bulgarian conditions and comparing it with the value according to the current regulation. The results obtained make it possible to make adequate management decisions, guaranteeing the maintenance of sufficient water in rivers and water ecosystems. The current regulation uses average annual and minimum average monthly water quantities. In our presented Methodology, the estimates are based on average monthly values grouped by three types of water content. It is recommended to work with a hydrological approach and standard statistical methods for calculating ecological flow, which requires a minimum of hydro-ecological information and enables the development of a national strategy.
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References8
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