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Перевод: compaction

компактность

Тезаурус:

1. Soil compaction by vehicle tyres in recreation areas of the Californian Desert has caused a reduction in the population of annual ephemerals by reducing water penetration that is essential to remove germination inhibitors from the soil seed bank (Webb 1982).
2. caused by normal settlement or shrinkage or to solid floors caused by compaction of infill
3. The porosity of the uppermost unit of the Hauptdolomit in eastern Drenthe has been severely reduced by a combination of vadose compaction and early cementation (Figs. 1 6c and d).
4. Any remaining intergranular porosity that escaped vadose compaction appears to have been occluded by early cementation (Fig. 16d).
5. As a result, vadose compaction of unconsolidated grains took place, which consisted of the preferential leaching of grains at their points of contact until all intergranular porosity had been destroyed and a tight polygonal texture had been created (Fig. 16c; Clark 1980a).
6. Field studies suggest that there is a yield benefit, too, as reduced tractor wheelslip and soil compaction should lead to less damage to soil and crop.
7. The former brings subsoil with a high aluminium content to the surface and this, in tandem with soil compaction and inadequate fertiliser use, has often resulted in poor harvests.
8. An example of this can be seen in the upper part of the Hauptdolomit in Schoonebeek-447, where the porosity has been completely destroyed by vadose compaction and the sonic log as a typically serrated character (Fig. 18).
9. Both vadose compaction and early cementation only appear to have operated locally, however, as porosity has survived in the uppermost Hauptdolomit in Exloo-2 nearby (Fig. 18).
10. "That brings in another advantage - the period when you can inject is increased, as soil damage and compaction are greatly reduced.
11. Thermal conductivity was estimated from compaction data to derive a temperature profile which was constrained by known present-day geothermal gradients (see Oxburgh and Andrews-Speed 1981).
12. Compaction of shales and clays has resulted in dewatering and solution recrystallisation of minerals.
13. In all cases, soil compaction, changes in infiltration rates, soil organic matter, litter and soil moisture content as well as vegetation cover were recorded.