Nährstoffgehalte von lössboden-toposequenzen in südniedersachsen und franken unter dem einfluss der bodenerosion

This paper deals with the effects of soil erosion on the horizontal and vertical distribution of nutrients in loess soil topo-sequences in southern Lower Saxony and Frankonia (W. Germany). Each topo-sequence consists of three parts: an upper plateau (or edge of a piedmont plain) with little soil erosion up to now, a slope which as a whole has been eroded very much, and a slope foot which is covered with colluvial sediments. Compared to the pure loess the soils contain more K, Na, and P, and less Ca. The distribution of the nutrients within the investigated topo-sequences is caracterized by high contents of potassium on the slopes, provided that the A₁-horizon is eroded, so that the B¹-horizon has come to the surface. Finally it is considered whether the erosion-made differentiation of nutrients has negative or positive consequences on the productiveness of the arable soils.     

Meffung des Expofitionsklimas II

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