Little is known about how elevated atmospheric [CO2] will impact the dynamics of soil organic matter (SOM) in arid ecosystems. Evans et al. (2014) reported greater ecosystem carbon (C) and nitrogen (N) concentrations following 10 years exposure to elevated atmospheric [CO2] at the Nevada Desert Free-Air Carbon dioxide Enrichment (FACE) Facility (NDFF). In this study, we investigated potential mechanisms of SOC and total N accumulation and potential SOM stabilization using high resolution mass...
Topics: Mass spectrometry, Soil organic matter
— Soil natural carbon is the base for soil richness. SOC is the piece of common carbon cycle, which releases supplements for plant development, helps for auxiliary, organic and physical soundness of the soil and for the most part goes about as a cradle against hurtful substances. Soil natural carbon levels are affected by soil sustenance, atmosphere, cultivating techniques, temperature, precipitation, arrive administration, and soil compose. SOC includes around 5% of mass of upper soil layer,...
Topics: soil organic matter, global warming, climate change
Mendeley Climate Change Library
30
30
Jul 6, 2019
07/19
by
Markku Yli-Halla; Karoliina Rimhanen; Johanna Muurinen; Janne Kaseva; Helena Kahiluoto
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Soil carbon (C) represents the largest terrestrial carbon stock and is key for soil productivity. Major fractions of soil C consist of organic C, carbonates and black C. The turnover rate of black C is lower than that of organic C, and black C abundance decreases the vulnerablility of soil C stock to decomposition under climate change. The aim of this study was to determine the distribution of soil C in different pools and impact of agricultural management on the abundance of different species....
Topics: Biochar, Black carbon, Carbonates, Ethiopia, Soil organic matter
Mendeley Climate Change Library
45
45
Jul 6, 2019
07/19
by
Christopher Poeplau; Pierre Barré; Lauric Cécillon; François Baudin; Bjarni D. Sigurdsson
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Soil warming can increase soil organic carbon (SOC) mineralization, triggering a positive climate‑carbon cycle feedback loop. Globally, many soil warming experiments have examined losses of bulk SOC, but few have assessed changes in quality. Accurate knowledge of the latter is required for an in-depth understanding and improved prediction of SOC feedback to climate change. In this study, we used Rock-Eval thermal analysis (RE6) to characterize shifts in SOC thermal stability and bulk...
Topics: Global change, H2O2, NaOCl, Soil organic matter, Thermal analysis
Mendeley Climate Change Library
48
48
Jul 6, 2019
07/19
by
Gabriel Y.K. Moinet; Andrew J. Midwood; Peter Millard; John E. Hunt; David Whitehead; Kirsten D. Hannam; Meaghan Jenkins; Mark J. Brewer; Mark A. Adams
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Laboratory studies have shown that priming effects, caused by inputs of carbon into the rhizosphere, can change the rate of soil organic matter (SOM) decomposition and could have significant impacts on soil carbon cycling. However, there have been few studies in field conditions because of experimental constraints but field data are needed to improve models that forecast the effects of climate change on SOM decomposition rates and the impact of these changing rates on atmospheric CO2...
Topics: Decomposition, Priming effect, Rhizosphere, Soil organic matter, Stable carbon isotopes
Mendeley Climate Change Library
54
54
Jul 5, 2019
07/19
by
Iris Lochon; Pascal Carrère; Sandrine Revaillot; Juliette M.G. Bloor
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Grassland management has the potential to modify soil carbon (C) mineralization, but the relative importance of combined soil improvers or fertilizers and land use intensity on C mineralization remains unclear. We used laboratory incubations to examine the interactive effects of lime addition, mineral N inputs and grassland management intensity on soil C mineralization potential over 84 days. Monitoring of CO2 production and O2 consumption was coupled with measurements of soil pH and microbial...
Topics: Acidic soils, CO2 emissions, Calcium carbonate, Grassland management, Soil organic matter
Mendeley Climate Change Library
49
49
Jul 6, 2019
07/19
by
Valeria Cardelli; Mauro De Feudis; Giuseppe Corti; Flavio Fornasier; Luisa Massaccesi; Stefania Cocco; Alberto Agnelli; David C. Weindorf
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This study evaluated soil properties along a small transect in the Apennines chain (central Italy). Using latitude and altitude as surrogates for temperature differences, three locations at different latitudes were selected for the study. At each location, two altitudes were selected (800 and 1000 m). The study was conducted by contrasting chemical and biochemical parameters [microbial biomass-C content, amount of CO 2 evolved during basal respiration (ΣCO 2 –C), and potential enzyme...
Topics: Climate change, Enzyme activity, Forest soils, Organic horizons, Soil organic matter
Mendeley Climate Change Library
71
71
Jul 5, 2019
07/19
by
Shibin Liu; Kazem Zamanian; Per Marten Schleuss; Mohsen Zarebanadkouki; Yakov Kuzyakov
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The Tibetan Plateau hosts the world's largest alpine pastoral ecosystems, dominated by the endemic sedges Kobresia pygmaea and Kobresia humilis. Owing to the very harsh environment and also to soil nitrogen (N) and phosphorus (P) limitations, these pastoral ecosystems are very sensitive to disturbances (e.g. anthropogenic activities and climate change) and recover extremely slowly. Overgrazing on the Tibetan Plateau has caused severe degradation of vegetation and soils in the last 30–50...
Topics: Carbon sequestration, Pasture degradation, Soil nutrients, Soil organic matter, Tibetan plateau
Mendeley Climate Change Library
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57
Jul 6, 2019
07/19
by
Marcel van der Perk; Maria Stergiadi; Ton C.M. de Nijs; Rob N.J. Comans; Marc F.P. Bierkens
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Changes in soil hydrology as a result of climate change or changes in land management may affect metal release and leaching from soils. The aim of this study is to assess the cascading response of SOM and DOC levels and metal leaching to climate change in the medium-sized lowland Dommel catchment in the southern part of the Netherlands. We implemented the CENTURY model in a spatial setting to simulate SOM, DOC, and water dynamics in topsoils of the Dutch portion of the Dommel catchment under...
Topics: CENTURY model, Climate change, Heavy metals, Leaching, Soil organic matter, Spatial modelling
Hydrolysis of cellulose to glucose is a key reaction in renewable energy from biomass and in mineralization of soil organic matter to CO2. Conditional thermodynamic parameters, ΔhydG’ ΔhydH’ and ΔhydS’ and equilibrium glucose concentrations are reported for the reaction C6H10O5(cellulose) + H2O(l) ⇄ C6H12O6(aq) as functions of temperature from 0 to 100 °C. Activity coefficients of aqueous glucose solution were determined as a function of temperature. The reaction free energy...
Topics: Biomass, Global warming, Glucose activity coefficient, Lignocellulose, Renewable energy, Soil...
Recent evidence suggests that oxygen limitations are a critical regulator of soil organic matter mineralization rates, even within seemingly well-drained upland soils. Oxygen limitations may arise in otherwise well-aerated soils when oxygen consumption (via microbial respiration) in soil microsites outpaces oxygen supply (through diffusion). Due to analytical limitations, attempts to parameterize oxygen limitations in models have so far been limited to measures of bulk oxygen concentrations or...
Topics: Climate change, Metabolic diversity, Redox gradients, Soil carbon stabilization, Soil organic...
Mendeley Climate Change Library
47
47
Jul 6, 2019
07/19
by
Lijian Leng; Xinwei Xu; Liang Wei; Liangliang Fan; Huajun Huang; Jianan Li; Qian Lu; Jun Li; Wenguang Zhou
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Biochar produced from pyrolysis of biomass is a candidate with great potential for climate change mitigation by carbon sequestration and reduction of greenhouse gases (GHG) emission in soil. Its potential depends considerably on biochar properties. Biochar stability or biochar C recalcitrance is decisive to its carbon storage/sequestration potential in soil. Three groups of methods including: I) biochar C structure or composition analyses, II) biochar oxidation resistance determination, and...
Topics: Bio-char, Carbon dioxide, Charcoal, Mean residence time, Pyrogenic organic carbon, Soil organic...
Soil samples from three (3) mapping units in Mvumi and four (4) mapping units in Mbogo Komtonga representing two irrigation schemes in Kilosa and Mvomero Districts in eastern Tanzania were collected and analyzed for different mineral elements. Using zigzag sampling techniques, 9 composite samples with three replicates were collected at depth 0 – 30 cm from the delineated pedogeomorphic units at a radius of 20 m around the soil pits. Soil samples from each soil type were bulked, thoroughly...
Topics: Calcium, cation exchange capacity, paddy production, fertility constraints, management practices,...
Mendeley Climate Change Library
43
43
Jul 6, 2019
07/19
by
Jérémy Puissant; Konstantin Gavazov; Sebastien De Danieli; Thomas Spiegelberger; Robert Griffiths; Alexandre Buttler; Jean Jacques Brun; Lauric Cécillon
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In mountain ecosystems with marked seasonality, climate change can affect various processes in soils, potentially modifying long-term key soil services via change in soil organic carbon (C) storage. Based on a four-year soil transplantation experiment in Swiss subalpine grasslands, we investigated how imposed climate warming and reduced precipitation modified the drivers of soil carbon enzyme potential activities across winter and summer seasons. Specifically, we used structural equation models...
Topics: Climate manipulation, Path analysis, Recalcitrance, Soil microbial communities, Soil organic matter...
Mendeley Climate Change Library
79
79
Jul 5, 2019
07/19
by
Rachelle S. Meyer; Brendan R. Cullen; Penny H. Whetton; Fiona A. Robertson; Richard J. Eckard
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Increasing soil organic carbon (SOC) stocks is an often-mentioned option to mitigate greenhouse gas emissions. However, increasing carbon stocks in agricultural soils is difficult and the ability of soils to store carbon as the climate changes is uncertain. This is due to many interacting factors, including those that vary spatially, contributing to organic matter inputs and decomposition rates. We used two models, the Sustainable Grazing Systems whole-farm system model (SGS) and the RothC soil...
Topics: Climate change impacts, Grazing, Pasture production, RothC, Soil organic matter, Stocking,...
Mendeley Climate Change Library
54
54
Jul 6, 2019
07/19
by
Daniela F. Cusack; William Hockaday; Lee H. Dietterich; Benjamin L. Turner
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Climate change and rising atmospheric carbon dioxide (CO 2 ) concentrations are likely to alter tropical forest net primary productivity (NPP), potentially affecting soil C storage. We examined biochemical and physical changes in soil C fractions in a humid tropical forest where experimental litter manipulation changed total soil C stocks. We hypothesized that: (1.) low-density soil organic C (SOC) fractions are more responsive to altered litter inputs than mineral-associated SOC, because they...
Topics: 13 C NMR, Density fractionation, Dissolved organic carbon (DOC), Nitrogen, Radiocarbon 14 C, Soil...
— The uptake of silver from silver nanoparticles in soil was investigated in the presence of increasing concentrations of soil organic matter. Especially, the effect of Humus component of soil organic matter on the uptake of Ag from silver nanoparticles was studied. Two insect species, Acheta domesticus and Tenebrio molitor, and two plant species, Helianthus annuus and Sorghum vulgare, were exposed to silver nanoparticles(25 ppm in the presence of increasing concentrations of Humus (0, 1, 5,...
Topics: Silver nanoparticles, Acheta domesticus, Tenebrio molitor, Helianthus annus, Sorghum vulgare,...
Cover title
Topics: Crops and soils, Soil conservation, Soil management, soil quality, soil degradation, soil organic...
23 pages : 23 cm
Topics: Soil erosion, Soil conservation, wind erosion, soil erosion, erosion control, soil conservation,...
16 pages ; 23 cm
Topics: Soil management, Soil productivity, soil, soil amendments, soil degradation, soil conservation,...
Farmers' bulletin (United States. Dept. of Agriculture)
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189
Experiment station work, XIX : maintenance of soil fertility, condimental and medicinal cattle and poultry foods, Thomas slag, rotation of crops, feeding rice meal to pigs, gardening under glass, dressing and packing poultry, winter irrigation of orchards, the curing of cheese, improvement of American grapes, an improved cow stall
May 7, 2014
05/14
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Cover title
Topics: Agriculture United States, industrial byproducts, slags, soil fertility, soil organic matter, crop...
24 p. : 23 cm
Topics: Dry farming Northwest, Pacific, Wheat Northwest, Pacific, dryland farming, small grains, grain...
59 pages : 23 cm
Topics: Soil conservation Middle West, corn, soil erosion, nutrient offtake, soil organic matter, rain,...
30 pages : 23 cm
Topics: water content, Soil moisture, Soil management, soil water movement, tilth, tillage, subsoiling,...
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55
Jan 25, 2020
01/20
by
Helmut Janssen
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Visual Soil Assessment
Topics: Soil Humus type recognition p. 21-22 Mull, Moder, Rawhumus, Podzol, Nutrient extraction, Soil...
