Soil horizon
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Root distribution by depth for temperate agricultural crops Open
Root distribution pattern plays an important role in understanding and estimating of soil C allocation and the effect of crop roots C input on soil carbon balance in agroecosystems. A database of 96 profiles was compiled and root distribut…
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Standardised soil profile data to support global mapping and modelling (WoSIS snapshot 2019) Open
The World Soil Information Service (WoSIS) provides quality-assessed and standardised soil profile data to support digital soil mapping and environmental applications at broadscale levels. Since the release of the first “WoSIS snapshot”, i…
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Deep soil inventories reveal that impacts of cover crops and compost on soil carbon sequestration differ in surface and subsurface soils Open
Increasing soil organic carbon (SOC) via organic inputs is a key strategy for increasing long‐term soil C storage and improving the climate change mitigation and adaptation potential of agricultural systems. A long‐term trial in California…
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Soil water stable isotopes reveal evaporation dynamics at the soil–plant–atmosphere interface of the critical zone Open
Understanding the influence of vegetation on water storage and flux in the upper soil is crucial in assessing the consequences of climate and land use change. We sampled the upper 20 cm of podzolic soils at 5 cm intervals in four sites dif…
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Testing plant use of mobile vs immobile soil water sources using stable isotope experiments Open
Summary We tested for isotope exchange between bound (immobile) and mobile soil water, and whether there is isotope fractionation during plant water uptake. These are critical assumptions to the formulation of the ‘two water worlds’ hypoth…
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The Effect of Harvest on Forest Soil Carbon: A Meta-Analysis Open
Forest soils represent a substantial portion of the terrestrial carbon (C) pool, and changes to soil C cycling are globally significant not only for C sequestration but also for sustaining forest productivity and ecosystem services. To qua…
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Soil water content in southern England derived from a cosmic‐ray soil moisture observing system – COSMOS‐UK Open
Cosmic‐ray soil moisture sensors have the advantage of a large measurement footprint (approximately 700 m in diameter) and are able to operate continuously to provide area‐averaged near‐surface (top 10–20 cm) volumetric soil moisture conte…
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Impacts of snow and organic soils parameterization on northern Eurasian soil temperature profiles simulated by the ISBA land surface model Open
In this study we analyzed how an improved representation of snowpack processes and soil properties in the multilayer snow and soil schemes of the Interaction Soil-Biosphere-Atmosphere (ISBA) land surface model impacts the simulation of soi…
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Drought reduces water uptake in beech from the drying topsoil, but no compensatory uptake occurs from deeper soil layers Open
Summary The intensity and frequency of droughts events are projected to increase in future with expected adverse effects for forests. Thus, information on the dynamics of tree water uptake from different soil layers during and after drough…
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Global patterns and drivers of soil total phosphorus concentration Open
Soil represents the largest phosphorus (P) stock in terrestrial ecosystems. Determining the amount of soil P is a critical first step in identifying sites where ecosystem functioning is potentially limited by soil P availability. However, …
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Factors affecting variations of soil pH in different horizons in hilly regions Open
Soil pH is a key factor that controls soil nutrient availability, soil microbial activities, and crop growth and development. However, studies on the soil pH variations of cultivated lands in different horizons at the regional scale remain…
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Depth matters: effects of precipitation regime on soil microbial activity upon rewetting of a plant-soil system Open
Changes in frequency and amplitude of rain events, that is, precipitation patterns, result in different water conditions with soil depth, and likely affect plant growth and shape plant and soil microbial activity. Here, we used 18O stable …
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In situ monitoring of H and O stable isotopes in soil water reveals ecohydrologic dynamics in managed soil systems Open
The water cycle in urban and hydrologically managed settings is subject to perturbations that are dynamic on small spatial and temporal scales; the effects of which may be especially profound in soils. We deploy a membrane inlet‐based lase…
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Stocks of organic carbon in German agricultural soils—Key results of the first comprehensive inventory Open
Background: There is considerable uncertainty about the actual size of the global soil organic carbon (SOC) pool and its spatial distribution due to insufficient and heterogeneous data coverage. Aims: We aimed to assess the size of the Ger…
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Root hydraulic phenotypes impacting water uptake in drying soils Open
Soil drying is a limiting factor for crop production worldwide. Yet, it is not clear how soil drying impacts water uptake across different soils, species, and root phenotypes. Here we ask (1) what root phenotypes improve the water use from…
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Soil compaction impacts soybean root growth in an Oxisol from subtropical Brazil Open
Made available in DSpace on 2021-01-28T20:32:54Z (GMT). No. of bitstreams: 1\nOxisol.pdf: 5997744 bytes, checksum: fc2f2038a283f946efb7652cb60e7159 (MD5)\n Previous issue date: 2020
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Parameterization of Root Water Uptake Models Considering Dynamic Root Distributions and Water Uptake Compensation Open
Core Ideas Parameters of different RWU models were optimized using data from a rhizotron facility. The same soil hydraulic properties were obtained for models considering RWU compensation. Feddes–Jarvis and Couvreur models predicted simila…
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Nitrogen pools and C:N ratios in well-drained Nordic forest soils related to climate and soil texture Open
Relationships between soil nitrogen (N) pools, climate, and soil-texture class in well-drained Nordic forest soils may be used for upscaling of regional N budgets. Total soil N pools and C:N ratios were studied in forest soils in Fennoscan…
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Root hairs aid soil penetration by anchoring the root surface to pore walls Open
The physical role of root hairs in anchoring the root tip during soil penetration was examined. Experiments using a hairless maize mutant (Zea mays: rth3-3) and its wild-type counterpart measured the anchorage force between the primary roo…
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Dissolved organic carbon and nitrogen release from boreal Holocene permafrost and seasonally frozen soils of Alaska Open
Permafrost (perennially frozen) soils store vast amounts of organic carbon (C) and nitrogen (N) that are vulnerable to mobilization as dissolved organic carbon (DOC) and dissolved organic and inorganic nitrogen (DON, DIN) upon thaw. Such r…
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Microbial Community and Functional Structure Significantly Varied among Distinct Types of Paddy Soils But Responded Differently along Gradients of Soil Depth Layers Open
Paddy rice fields occupy broad agricultural area in China and cover diverse soil types. Microbial community in paddy soils is of great interest since many microorganisms are involved in soil functional processes. In the present study, Illu…
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Evaporation, infiltration and storage of soil water in different vegetation zones in the Qilian Mountains: a stable isotope perspective Open
The processes of water storage have not been fully understood in different vegetation zones of mountainous areas, which is the main obstacle to further understanding hydrological processes and improving water resource assessments. To furth…
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A vertical representation of soil carbon in the JULES land surface scheme (vn4.3_permafrost) with a focus on permafrost regions Open
An improved representation of the carbon cycle in permafrost regions will enable more realistic projections of the future climate–carbon system. Currently JULES (the Joint UK Land Environment Simulator) – the land surface model of the UK E…
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Functional root trait‐based classification of cover crops to improve soil physical properties Open
Cover crop use is a well‐established soil conservation technique and has been proven effective for erosion control and soil remediation in many arable systems. Whereas the obvious protection mechanism of cover crops occurs through the cano…
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Rising Temperature May Trigger Deep Soil Carbon Loss Across Forest Ecosystems Open
Significantly more carbon (C) is stored in deep soil than in shallow horizons, yet how the decomposition of deep soil organic C (SOC) will respond to rising temperature remains unexplored on large scales, leading to considerable uncertaint…
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ORCHIDEE-SOM: modeling soil organic carbon (SOC) and dissolved organic carbon (DOC) dynamics along vertical soil profiles in Europe Open
Current land surface models (LSMs) typically represent soils in a very simplistic way, assuming soil organic carbon (SOC) as a bulk, and thus impeding a correct representation of deep soil carbon dynamics. Moreover, LSMs generally neglect …
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The presence of mercury and other trace metals in surface soils in the Norwegian Arctic Open
Svalbard is an important study area for investigating the long-range transport of mercury (Hg) and other trace elements to the Arctic. Few studies have focused on their concentrations in Arctic soils. With ongoing climate change leading to…
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Spatial Variation in Soil Fungal Communities across Paddy Fields in Subtropical China Open
In this work, Illumina MiSeq amplicon sequencing of the ITS region was used to investigate the spatial variation and assembly mechanisms of fungal communities from different soil layers across paddy fields in subtropical China, and the res…
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Root growth, water uptake, and sap flow of winter wheat in response to different soil water conditions Open
How much water can be taken up by roots and how this depends on the root and water distributions in the root zone are important questions that need to be answered to describe water fluxes in the soil–plant–atmosphere system. Physically bas…
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Analysis of soil hydraulic and thermal properties for land surface modeling over the Tibetan Plateau Open
Soil information (e.g., soil texture and porosity) from existing soil datasets over the Tibetan Plateau (TP) is claimed to be inadequate and even inaccurate for determining soil hydraulic properties (SHP) and soil thermal properties (STP),…