Примеры использования Humus layer на Английском языке и их переводы на Русский язык
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Mercury(Hg) showed no sign of decrease, even in the humus layer.
C/N ratios are mostly lower in the humus layer than in the mineral soil.
Therefore, the highest amounts in forest soils were found in the humus layer.
Humus layers were at risk in southern Sweden due to current Hg deposition.
Further work was necessary on transfer functions for humus layers and calcareous soils.
The contents are higher in humus layers as compared to the mineral soil layers, with the exception of Ni table 7.
Inversely, the base saturation is generally much higher in the humus layer compared to the mineral soil.
In one natural zone the humus layer is stronger than in the other, resulting in a different number of harvested crops.
Heavy metals: no critical limit exceedance of Pb,Cd and Hg in humus layer; no CL exceedance.
Measured values of the pH(CaCl2) in the humus layer are generally 0.5 pH unit lower than in the mineral topsoil.
Percentage of sites in the classes‘low',‘medium' and‘high' of the C/N andC/P ratio in the humus layer.
Total concentration in humus layer in view of effects on soil micro organisms and invertebrates Aquatic Freshwaters.
Percentage of observations in the classes‘low',‘normal' and‘high' of the heavy metal contents in the humus layer.
C/N ratios in the humus layer below 20, which might indicate enhanced N accumulation, occurred at 10% of the sites.
He suggested that effects-based critical limit criteria might be characteristic for specific humus layers.
He emphasized that accumulation of Hg in forest humus layers would place soil micro-organisms and microbial processes at risk.
There was a highly significant relationship between the base cation contents in the foliage and in the humus layer.
Low carbon-nitrogen ratio(C/N) in the humus layer leading to unfavourable N concentrations in the foliage;
Humus layers would improve faster than catchments and negative mass balances of those layers are now observed in some investigations.
Nitrogen deposition, decreasing the C/N ratio of the humus layer, may disturb organic matter and nutrient cycling.
The results that are presented focus on the major nutrient ratios(C/N and C/P), the acidity status(pHCaCl2 and base saturation) and the heavy metal contents(Pb, Cd,Cu and Zn) of the humus layer and mineral soil.
Heavy metal contents(ug/g) in the humus layer and in the mineral soil in the 30-40 cm layer of ICP Integrated Monitoring sites.
Unlike N and S, the influence of base cation(Ca, Mg, K)deposition on the base cation contents in foliage and in the humus layer was mostly insignificant or slightly significant.
Hg accumulation in forest humus layers was directly influenced by recent deposition levels and has placed soil microbiota at risk.
It took note of the results in heavy metals concentrations and fluxes,in particular that accumulation of mercury in forest humus layers would place soil micro-organisms and microbial processes at risk.
Acid topsoil conditions, i.e. a pH(CaCl2)below 3.5 in the humus layer and below 4.0 in the mineral topsoil, and a base saturation below 25% in the mineral soil, occurs at approximately 40-50% of the sites.
Mr. Lundin introduced the updated calculations from catchment budgets at ICP Integrated Monitoring sites,which showed that mercury concentrations in the soil humus layer were higher than pre-industrial values.
A comparison of output with the fairly mobile store that has been accumulating in the humus layer(O)(see RW/ O ratio in table 1) shows that recovery is a matter of centuries on the catchment scale, even if a portion of the store is natural background.
Budget calculations on heavy metal fluxes and budgets at ICP Integrated Monitoring sites indicated sharply decreasing lead(Pb)concentrations in the biologically important humus layers, and cadmium(Cd) seemed to decrease.
Concentrations of certain heavy metals, particularly lead and zinc, in the humus layer show regional gradients reflecting atmospheric deposition patterns.