Soil dispersion tests combined with topographical information can describe field-scale sediment and phosphorus losses

2014 ◽  
Vol 30 (3) ◽  
pp. 342-350 ◽  
Author(s):  
A. Villa ◽  
F. Djodjic ◽  
L. Bergström
Keyword(s):  
Field Scale ◽  
Soil Dispersion ◽  
Phosphorus Losses

Field‐Scale Nitrogen and Phosphorus Losses from Hayfields Receiving Fresh and Composted Broiler Litter

1998 ◽  
Vol 27 (5) ◽  
pp. 1246-1254 ◽  
Author(s):  
R. W. Vervoort ◽  
D. E. Radcliffe ◽  
M. L. Cabrera ◽  
M. Latimore
Keyword(s):  
Field Scale ◽  
Nitrogen And Phosphorus ◽  
Broiler Litter ◽  
Phosphorus Losses

scholarly journals Soil parameter variability affecting simulated fieldscale water balance, erosion and phosphorus losses

2009 ◽  
Vol 18 (3-4) ◽  
pp. 402-416 ◽  
Author(s):  
I. BÄRLUND ◽  
S. TATTARI ◽  
M. PUUSTINEN
Keyword(s):  
Water Balance ◽  
Management Practices ◽  
Agricultural Land ◽  
Expert Knowledge ◽  
Agricultural Soils ◽  
Data Sets ◽  
Field Scale ◽  
Lack Of Information ◽  
Scale Modelling ◽  
Phosphorus Losses

Field-scale modelling is widely used as a means to look into interdependencies of processes and to assess potential effects of agricultural management practices as well as of climate and socio-economic scenarios. Generalisation from field-scale results to cover all agricultural land in a catchment by using typical soilcrop- slope combinations has been restricted by a lack of information for the systematic parameterisation of soils. Data from single experimental fields are seldom representative for the whole respective catchment. In this study typical soil profiles for mineral agricultural soils in Finland are defined. Key parameters describing e.g. the texture and water holding capacity of soils, were generated from existing soil data using expert knowledge and are aimed to be used for field-scale modelling when the target is not to model a particular field but soils of certain type in general. Estimates for water balance and phosphorus losses, obtained with the ICECREAM model by applying these data sets, were realistic and compatible with experimental results measured in Finland.;

Review of the Annual Phosphorus Loss Estimator tool - a new model for estimating phosphorus losses at the field scale

2014 ◽  
Vol 30 (3) ◽  
pp. 337-341 ◽  
Author(s):  
C. McW. H. Benskin ◽  
W. M. Roberts ◽  
Y. Wang ◽  
P. M. Haygarth
Keyword(s):  
Field Scale ◽  
Phosphorus Loss ◽  
New Model ◽  
Phosphorus Losses ◽  
Loss Estimator

Temperature Influence on Performance of Oxidation Ponds

1991 ◽  
Vol 24 (5) ◽  
pp. 85-96 ◽  
Author(s):  
Qingliang Zhao ◽  
Zijie Zhang
Keyword(s):  
Mathematical Model ◽  
Temperature Influence ◽  
Field Scale ◽  
Experiment Data ◽  
Computer Technique ◽  
Oxidation Pond ◽  
Optimum Model ◽  
Oxidation Ponds ◽  
The Mathematical Model ◽  
The Relationship

By means of simulated tests of a laboratory–scale oxidation pond model, the relationship between BOD5 and temperature fluctuation was researched. Mathematical modelling for the pond's performance and K1determination were systematically described. The calculation of T–K1–CeCe/Ci) was complex but the problem was solved by utilizing computer technique in the paper, and the mathematical model which could best simulate experiment data was developed. On the basis of experiment results,the concept of plug–ratio–coefficient is also presented. Finally the optimum model recommended here was verified with the field–scale pond data.

Innovations in Measuring Field Scale Biological Methane Oxidation at Two Soil-Covered Closed Landfills

2016 ◽  
Vol 3 (2) ◽  
pp. 118-130
Author(s):  
Tarek Abichou ◽  
Haykel Melaouhia ◽  
Bentley Higgs ◽  
Jeff Chanton ◽  
Roger Green
Keyword(s):  
Methane Oxidation ◽  
Field Scale ◽  
Measuring Field
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