Abstract

In abandoned south-taiga hayfields overgrowing with forest species, the biomass of the grass layer decreases even before the formation of a closed tree stand. Actual acidity increases in the upper part of the soil profile, which is adequately reflected in the species composition of the living ground cover. This trend is manifested more clearly in light soils. In soils of a hayfield meadow affected for many years by grazing prior to mowing, the content and reserves of organic carbon are significantly higher in comparison with hayfields not affected by grazing. After the termination of haymaking activities, the content and reserves of organic carbon in the upper part of the soil profile go down. Overall, long-term grazing slows down the postagrogenic dynamics of organic matter in soils of dry meadows.

中文翻译：

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干草（科斯特罗马州）自然生长后过度生长过程中与植被相结合的土壤特性动态

摘要

在森林物种过度生长的废弃南针叶林干草场中，草层的生物量甚至在封闭的林分形成之前就已经下降。土壤剖面上部的实际酸度增加，这充分反映在活地覆盖物的物种组成中。这种趋势在轻质土壤中表现得更明显。与未受放牧影响的干草场相比，在割草前多年受放牧影响的干草草地土壤中，有机碳的含量和储量显着更高。干草活动结束后，土壤剖面上部有机碳含量和储量下降。总体而言，长期放牧减缓了干旱草地土壤中有机质的后农业动态。