Coherent structure

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Coherent structure

The coherent structure (Latin cohaerere : to be connected) or shell structure is a structure of the soil with a tightly connected, compact structure.

The coherent structure arises from larger mineral grains in connection with dense coatings of calcium carbonate , colloids from silica , iron oxides, aluminum oxides and hydroxides, strongly decomposed humus substances, clay substance, in enrichment horizons, also with the formation of local stone. Fine pores <0.2 µm predominate in the coherent structure.

Because this coherent soil mass is not favorable for rooting, air and water flow in the soil, plant growth and soil fertility , biological activity, aggregation or segregation processes, as well as soil improvement measures - humusification , mixing in sand, liming , tillage a more favorable crumb structure of the soil can be achieved.

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