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Intensive development of the steppe communities of Kulunda, located in the southern part of the West Siberian lowland in the XX century led to a significant anthropogenic transformation of all steppe ecosystems. Representatives of the legume family, which is the most important component of steppe grasses, have almost disappeared from the grasslands. The research was conducted on the territory of the Mikhailovsky district of the Altai territory, on the lands of LLC KKH «Partner» in the environs of Poluyamki village scince 2013-till present days climatic conditions of dry steppe zone of Western Kulunda. The aim of the work was to evaluate representatives of the legume family for ecological reclamation of Kulunda steppe pastures. The experiment was performed on 2 degraded fenced steppe areas (10 x 10 m) corresponding to the third stage of pasture digression. Winter sowing of legumes was carried out: cicer milk vetch (Astragalus cicer L.), sainfoin milk vetch (A. onobrychis L.), furrowed milk vetch (A. sulcatus L.), bird’s foot trefoil (Lotus corniculatus L.), sickle alfalfa (Medicago falcata L.), hop alfalfa (M. lupulina L.) and late spring sowing: cicer milk vetch and sainfoin, bird’s foot trefoil by tapping into the sod. Monthly growth dynamics of sown plants (number of shoots per m2, height, phenology) was recorded, and the feed value of aboveground biomass was established. It was found that the drought-resistant species of alfalfa sickle has a significant biomass, is short-lived in the grass stand and requires re-sowing every 4 years. Hop alfalfa is recommended for improving degraded pastures, but due to its short ontogeny, it needs to be re-sown every three years. Among milk vetches, sainfoil milk vetch is the most promising – a long-rooted, rod-rooted polycarpic that increases its area due to numerous underground rhizomes. The greatest nutritional and energy value was possessed by the phytomass of bird’s foot trefoil and sickle alfalfa.

USE OF LEGUMES FOR ECOLOGICAL RECLAMATION OF STEPPE DEGRADED PASTURES OF KULUNDA