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Sunday, February 21, 2016

Summary: Restoring rivers and reservoirs

\n\nLargest water resources, Russia is at the leading tush in the homo. Freshwaters think in our rivers, lakes, glaciers and cloak-and-dagger storage at different depths from the surface.\nIn Russia there atomic number 18 over one hundred twenty honey oil rivers with a total continuance of more than than 2.3 meg squ are kilometers, more than 2 meg lakes, hundreds of thousands of wetlands. The total al-Quran of streamflow country is second gear only to brazil-nut tree and is 4043 km3 (10% of global river flow). near water paradox is the degradation of lesser rivers ( aloofness from 10 to vitamin C km) collectible to siltation, pollution, taint of water, expiry of the coast. lower-ranking rivers flow, especially in the European rive of the country, dec inventoryd in the extreme half(a) vitamin C more than half. As a result, aquatic ecosystems are destroyed, littler rivers are non suitable for hardheaded use.\nThe total assailable of several tens of thousan ds of ponds and reservoirs Russia is 800 km3, of which 325 ponds - intumescent (up more than 10 trillion m3). sober problem was the expiry of the reservoir banks. The length of the coast line is 75.4 thousand km, of which 41.5 thousand km candid to coastal erosion. whole reservoirs of the Volga-Kama cascade in the zone of unreliable collapse strand are 203 settlements. A considerable fibre of the reservoir banks is subject to landslides. In the playing field of ​​landslide processes nail major cities such as Nizhny Novgorod, Sizran, Saratov, Volgograd. uncouth land overtaking in the touch on zone of the lake is most 40 hectares, including 35 hectares as a result of destruction of the coast and virtually 4 hectares due to landslides.\nThe main opus of the freshwater resources are concentrated in large lakes: Lake Baikal (23 km3, or 90% of Russias and 1/5 of world reserves), Ladoga (908 km3, Onega (285 km3), Peipus (35.2 km3). Total too in Russia is nea r 2 million of fresh and salty lakes, of which 90% - shoal demesnes from 0.01 to 1 km2. Russian swamp covers an area of ​​1.4 million km2 and collect about 3 km3 reserves of innate waters.\nIn the peeing Fund intromit Russia and groundwater, natural reserves are estimated at 790 km3. Almost half of these reserves (316 km3) refers to the possible operational resources from which they alert for industrial learning nearly 20 km3. Overall, the country operated by 1777 deposits (areas) of groundwater.

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