Carrion Effects on Belowground Communities and Consequences for Soil Processes

2015 ◽  
pp. 93-106 ◽  
Author(s):  
Michael Strickland ◽  
Kyle Wickings
Keyword(s):  
Soil Processes

Understanding long-term soil processes using meteoric 10Be: A first attempt on loessic deposits

2015 ◽  
Vol 27 ◽  
pp. 11-21 ◽  
Author(s):  
M. Jagercikova ◽  
S. Cornu ◽  
D. Bourlès ◽  
P. Antoine ◽  
M. Mayor ◽  
...  
Keyword(s):  
Soil Processes

Systemic soil modelling and the evaluation of functions

2021 ◽  
Author(s):  
Ulrich Weller ◽  
Sara König ◽  
Bibiana Betancur-Corredor ◽  
Birgit Lang ◽  
Mareike Ließ ◽  
...  
Keyword(s):  
Travel Time ◽  
Soil Structure ◽  
Field Experiments ◽  
Current Knowledge ◽  
Agricultural Management ◽  
Water Dynamics ◽  
Plant Production ◽  
Soil Processes ◽  
State Variables ◽  
Soil Functions

<p><span>We developed an integrated model of soil processes – the Bodium – that enables us to predict possible changes in soil functions under varying agricultural management and climatic change.</span></p><p><span>The model combines current knowledge on soil processes by integrating state-of-the-art modules on plant growth, root development, soil carbon and matter turnover with new concepts with respect to soil hydrology and soil structure dynamics. The model domain is at profile scale, with 1D nodes of variable thickness and weight. It is tested with long-term field experiments to ensure a consistent output of the combined modules. The model is site-specific and works with different soil types and climates (weather scenarios).</span></p><p><span>The output can be interpreted towards a broad spectrum of soil functions. Plant production and nutrient balances can be determined directly. The same is possible for water dynamics, with potential surface runoff (as infiltration surplus), storage and percolation together with travel time and groundwater recharge. In addition, nitrate losses are calculated, and the travel time distribution can help with the evaluation of pesticide percolation risk. To evaluate the habitat for biological activity, the activity is calculated in terms of carbon turnover, and the state variables carbon availability, water, air and temperature for the are accessible. Also, for macrofauna the earthworm activity is included. The comparison of scenario runs can be evaluated quantitatively in terms of potential developments of soil functions.</span></p><p><span>The model is work in progress. Further modules that will be implemented are pH dynamics, more explicit microbial activity, and a more complete set of effects of agricultural management on soil structure are integrated.</span></p>

scholarly journals Erratum to: Modeling organic carbon and carbon-mediated soil processes in DSSAT v4.5

2014 ◽  
Vol 14 (3) ◽  
pp. 471-471
Author(s):  
Cheryl H. Porter ◽  
J. W. Jones ◽  
S. Adiku ◽  
A. J. Gijsman ◽  
O. Gargiulo ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Processes

scholarly journals Nitrous oxide emissions in soils fertilized with pig manure: soil processes and strategies of control and mitigation

2021 ◽  
Vol 10 (2) ◽  
pp. e23910212427
Author(s):  
Vilmar Muller Júnior ◽  
Jucinei José Comin ◽  
Guilherme Wilbert Ferreira ◽  
Jorge Manuel Rodrigues Tavares ◽  
Rafael da Rosa Couto ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Swine Manure ◽  
Nitrous Oxide Emissions ◽  
Management Systems ◽  
Pig Manure ◽  
Anthropogenic Emissions ◽  
N2o Emissions ◽  
Soil Processes ◽  
Carbon Dioxide Co2 ◽  
Denitrification Process

Nitrous oxide (N2O) is one of the main gases that contributes to the greenhouse effect. With a Global Warming Potential (GWP) 265 times greater than that of carbon dioxide (CO2), over a 100-year horizon, N2O also has the potential for the depreciation of the ozone layer. The activities related to agriculture and livestock are responsible for approximately 60% of the global anthropogenic emissions of this gas to the atmosphere. In Brazil, the sector corresponds to 37% of total emissions. The objectives of this review article were: (i) To verify which are the main processes involved in N2O emissions in soils fertilized with swine manure; (ii) What are the direct emissions on these soils under different management systems, and; (iii) What are the possible strategies for controlling and mitigating N2O emissions. Therefore, an exploratory and qualitative research of articles was carried out using the following keywords: óxido nitroso’, ‘nitrous oxide’, ‘N2O’, ‘nitrogênio’, ‘nitrogen’, ‘suínos, ‘pig, ‘swine’, ‘dejetos’, ‘manure’ and ‘slurry’. Effects of pig diet, manure treatment systems, presence of heavy metals in the soil and moisture content of manure on N2O emissions were verified. Therefore, we recommend integrated studies of the quantitative and qualitative impacts of the levels and sources of nitrogen in the animals' diets on N2O emissions after the application of these wastes to the soil. We also recommend studies related to the effects of copper and zinc contents added to the soil via swine manure on enzymes that catalyze the biotic denitrification process in the soil.

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