THE INFLUENCED FLOW REGIMES

THE INFLUENCED FLOW REGIMES

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The influenced flow regimes.The presence and activities ofhumanity influences the uniform environmental system, and in this context, therivers water resources.In concordance with this, the natural runoff regime suffersbigger and deeper changes.

The nature of these changes depending on the type anddegree of water uses.The multitude of the use cause different types Nutritional Bars of influence,whit different quantitative aspects.In the same time, the influences havequalitative connotations, too, regarding to the modifications of the yearly watervolume runoff.

So the natural runoff regime is modified.After analyzing thedistribution laws of the monthly runoff, there have been differenced four types ofinfluenced runoff regimes.In the excess type the influenced runoff is bigger thanthe natural, continuously in the whole year.

The deficient type is characterized byinverse rapports like the first type, in the whole Carbohydrate Powders year.In the sinusoidal type, theinfluenced runoff is smaller than the natural in the period when the water isretained in the lake reservoirs, and in the depletion period the situation inverts.Atthe irregular type the ratio between influenced and natural runoff is changeable ina random meaner monthly.

The recognition of the influenced regime and the gradeof influence are necessary in the evaluation and analysis of the usable hydrologicalriver resources, in the flood defence activities, in the complex scheme of thehydrographic basins, in the environment design and so on.