Abstract

Natural grasslands that are used as pastures have great importance for animal husbandry. Unfortunately, because of various reasons, the productivity of natural pastures can decline with time. The methodology to predict possible long-term change of the basic properties of natural pastures depending on the pasture load is considered in the present paper. The simulation models and the results of their application for the conditions of use of natural pastures in the steppe zone of Russia are presented. The models take into account the following aspects: biodiversity of plant species in the grassland, capacity of ecological niche, vegetation productivity of grassland, climatic conditions, soil fertility, pasture load, surface slope, intensity of water and wind soil erosion, projective surface coverage, and ecological sustainability of the grassland. The analysis resulted from the proposed models in the examples of practical application showed that the described methodology could be used to develop the necessary measures for sustainable and intensive use of natural grasslands.

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