| 词汇 | humus |
| 释义 | humus noun[ U ] uk /ˈhjuː.məs/ us /ˈhjuː.məs/ dark earth made of organic material such as decayed leaves and plants腐殖质 Soil alluvial boulder clay clay clayey cover crop earthiness frozen lime loam ooze peat moss sandy sedimentation silt soil solarization solarize topsoil unploughed worm cast Examples of humushumus The soil is continually moist and covered with a thick layer of leaves and decaying humus. These results indicate that humus depth has a larger effect in determining local spatial distribution of tree species in heath forests than relative elevation. Nutrient release from litter and humus in coniferous forest soils - a mini review. The degree of influence on the spatial distribution of species, however, appears to be different between humus depth and relative elevation. The results on bryophyte cover and thickness of humus-bryophyte layer supported the expectations. Pitch a bit of humus to produce this? Spatial associations with soil nutrients were weak for necromass thickness, but clear for humus. Drainage disturbances were deeper most likely because the thicker layer of humus and loose soil at these sites made digging easier. The carbon input to the soil has a decisive influence on humus level, biological activities and soil structure, thus considerably controlling the biomass yield. Differences in moisture stress are thought to have a minor role in the distribution of humus in the plot. The accumulation of epiphytic dead organic matter (humus and semi-humus) is influenced by opposing processes. Bryophytes, together with low decomposition rates, are the best candidates to cause the high humus accumulation in montane forests. Bryophytes and humus together usually formed a rather distinct layer on the branches. The three binary variables (permanent water, humus depth, fallen canopy tree) were inherently non-normally distributed. Generally, thick and more or less horizontal branches in the centre of the crowns had the highest epiphyte cover and the thickest humus-bryophyte layer. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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