A5004916503- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Peatlands and Wetlands Ecology
- Soil Geostatistics and Mapping
- Bioenergy crop production and management
- Forest Management and Policy
- Soil and Unsaturated Flow
- Rangeland Management and Livestock Ecology
- Atmospheric and Environmental Gas Dynamics
- Soil erosion and sediment transport
- Agriculture Sustainability and Environmental Impact
- Isotope Analysis in Ecology
- Plant Ecology and Soil Science
- Soil Management and Crop Yield
- Microtubule and mitosis dynamics
- Conservation, Biodiversity, and Resource Management
- HER2/EGFR in Cancer Research
- Ecology and Vegetation Dynamics Studies
- Climate variability and models
- Anaerobic Digestion and Biogas Production
- Geochemistry and Geologic Mapping
- Land Use and Ecosystem Services
- Plant Water Relations and Carbon Dynamics
- Crop Yield and Soil Fertility
- Hungarian Social, Economic and Educational Studies
Rothamsted Research
2016-2025
GlaxoSmithKline (United States)
2023
The Ohio State University
2017
University of Reading
2008
University of Aberdeen
2000
Biotechnology and Biological Sciences Research Council
1995
Field Crops Research Institute
1994
Experimental Station
1990
Abstract Enhanced release of CO 2 to the atmosphere from soil organic carbon as a result increased temperatures may lead positive feedback between climate change and cycle, resulting in much higher levels accelerated global warming. However, magnitude this effect is uncertain critically dependent on how decomposition C (heterotrophic respiration) responds changes climate. Previous studies with Hadley Centre's coupled climate–carbon cycle general circulation model (GCM) (HadCM3LC) used...
Summary Under the Kyoto Protocol, European Union is committed to a reduction in CO 2 emissions 92% of baseline (1990) levels during first commitment period (2008–2012). The Protocol allows carbon be offset by demonstrable removal from atmosphere. Thus, land‐use/land‐management change and forestry activities that are shown reduce atmospheric can included targets. These include afforestation, reforestation deforestation (article 3.3 Protocol) improved management agricultural soils 3.4). In...
Summary A new model, RothPC‐1, is described for the turnover of organic C in top metre soil. RothPC‐1 a version RothC‐26.3, an earlier model topsoils. In two extra parameters are used to soil: one, p , which moves down profile by advective process, and other, s slows decomposition with depth. parameterized tested using measurements (described Part 1, this issue) total radiocarbon on soil profiles from Rothamsted long‐term field experiments, collected over period more than 100 years. gives...
Bioenergy developments could lead to large‐scale removal of cereal straw from fields, with consequences for soil organic carbon (SOC) and related properties. In 25 experiments 6 56 yr duration there was a trend SOC total N content increase where incorporated annually. However the increases were only significant in six <10% majority cases. Increases microbial biomass C or always proportionately greater than N. simulations annual incorporation using RothC model, 90% 100 reached within 20 as...
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 45:179-192 (2010) - DOI: https://doi.org/10.3354/cr00899 Estimating changes in Scottish soil carbon stocks using ECOSSE. I. Model description and uncertainties Jo Smith1,*, Pia Gottschalk1, Jessica Bellarby1, Stephen Chapman2, Allan Lilly2, Willie Towers2, John Bell2, Kevin Coleman3, Dali Nayak1, Mark Richards1, Jon Hillier1,...
Abstract Changes in the extractability and uptake by crops of sludge metals a long‐term field experiment, started 1942, were measured to assess whether Zn Cd are either fixed sludge/soil constituents or released as organic matter (OM) decomposes. Total 0.1 M CaCl 2 ‐extractable concentrations soil total on archived crop samples. Extractability proportion ranged from 0.5 3% that 4 18%, higher sludge‐amended than farmyard manure fertilizer‐amended soils. Over 23‐yr period after 1961, when was...
Context.—As the managed care environment demands lower prices and a greater focus on primary care, high cost of teaching hospitals may adversely affect their ability to carry out academic missions.Objective.—To develop national estimate total inpatient hospital costs related graduate medical education (GME).Design.—Using Medicare report data for fiscal year 1993, we developed series regression models analyze relationship between per case explanatory variables, such as mix, wage levels, local...
Conversion of tropical forest to agricultural management has important implications for C storage in soils and global climate change. The Nova Vida Ranch the Western Brazilian Amazon basin provided a unique opportunity study conversion forests pastures established 1989, 1987, 1983, 1979, 1972, 1951, 1911, comparison with uncleared forest. Soils were analyzed organic C, bulk density, total N, pH, clay content, biomass C. soil contained 34 Mg ha −1 0‐ 30‐cm layer: modeling clearance pasture...
Abstract The Askov field experiment (Denmark), established in 1894, provides a unique opportunity to examine long‐term effects of animal manure and mineral fertilizer on soil organic matter quality turnover. This sandy loam is classified as Alfisol (Typic Hapludalf). Soil C, N, S, 13 15 34 S 14 C contents were measured selection archived samples (1923, 1938, 1945, 1953, 1964, 1976, 1985, 1996 2000) from unfertilized (O), (1 AM) NPK) treatments. These treatments are imbedded four‐course crop...
Summary Measurements of total organic C, δ 13 C and 14 are given for topsoils taken from six experimental sites in southern England. At each site, some the samples were collected before after thermonuclear tests early 1960s, so that pre‐ post‐bomb could be compared radiocarbon content. The current Rothamsted model turnover soil gave an acceptable fit to data five sites, apart one aberrant measurement. annual input topsoil was calculated these fits; values obtained were: 0.15 t ha −1 a −l...