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.
See also
literature
- Karl Heinrich Hartge: Introduction to Soil Physics , p. 33, Stuttgart 1978 ISBN 3-432-89681-6
- D. Schroeder: Soil Science in Key Words , Unterägeri 1984, p. 60, ISBN 3-266-00192-3