Losses of the atmospheric precipitation from unprotected fields in steppe droughty subregion, their essential decrease and stabilization of hydroresources potential of agriculture by creation the forest meliorated (agro forest) basin agroecolandscapes

Work is devoted to resolution the problem of water deficit in steppe cross-border subregion of the Russian Federation. Technogenic agrarian environmental management uses water resources not effectively and wasteful. The year water balance loses on a drain, physical evaporation and sublimation on arable land from summer grain more than 55-60% of all water. Biological cluster-synergy moisture saving agroenvironmental management with forest hydromelioration has big hydrological effect. It can give on receipt the additional grain 120-180 mm to basic 170-220 mm that will allow to raise average productivity by 12-18 c/hectare.