(2002) extend that scope in proposing that a fertile soil “provides essential nutrients for crop plant growth, supports a diverse and active biotic community, exhibits a typical soil structure and allows for an undisturbed decomposition”. Nevertheless, the concept of soil fertility is generally ...
diffusion through the soil profile. In deep layers, soil temperature may be also strongly modulated by belowground geological characteristics (e.g., groundwater table, depth of bedrock). The consequence of such discrepancy between air and soil temperature changes on the estimation of whole-soil SOC...
the net on-farm cost of different soil compaction mitigation options is negative. Thus, avoiding soil compaction to be more cost-effective than alleviating, particularly true for subsoil compaction (Hallett et al.,2012). However, there is a need to summarize the published studies on the...
Coal mining restoration reclamation soil biota pedogenesis vegetation composition plant–soil interactions trees microbial community carbon sequestration Chapter Outline 24.1. Introduction Although soil clearly is a dependent variable of four state factors (climate, parent material, topography, and time), the...
buthavenegligiblecolloidalfractionfinerthan2μm.Fig.1.Typicalgrainsizedistributioncurvesforhydraulicfills,cementedhydraulicfillsandpastefills.2.HydraulicbackfillsHydraulicfillsaresimplysiltysandsorsandysiltswithoutclayfraction,andareclassifiedasMLorSMundertheUnifiedSoilClassificationSystem.Theclayfractionisremovedthrougha...
spectrum of typical ecological ranges—C:N 5-200, temperature 12°–33 °C, water potential −0.49 to −1.91 MPa. Thus, the niche breadth was defined as ≥25% of maximum growth of each isolate under respective fundamental niche gradients (Fig.1)89. Optima and niche breadth were ...
(oxides) is key to performance of the process concept, presented in Fig.6C. However, a molten layer on a solid material poses several practical problems, such as corrosion of the reactor wall and additional complexity of using fluidised bed reactors, which are typical for operations requiring a...
In accordance with the quantitative relationships between soil properties and crop IWP and irrigation water requirement, as well as the regional spatial distribution of soil properties, crop IWP, irrigation water requirement and their spatial distributions in a typical oasis irrigation district were ...
PurposeSoil water overconsumption is threatening the sustainability of regional vegetation rehabilitation in the Loess Plateau of China. In this study, two typical natural and artificial grasslands under different precipitation regimes were selected and the spatial variations in and the factors that impact...
This study tried to achieve the comprehensive research of human activities and environmental factors on soil properties through the study of the functions on soil properties from the environment factors under different land use types in the Beijing-Tianjin-Hebei region, which is a typical area with ...