Assessment and simulation of water and nitrogen transfer under furrow irrigation

Autor: Pierre Ruelle, Zornitsa Popova, D. Crevoisier, Jean-Claude Mailhol
Přispěvatelé: Department of Nutritional Physiology, University of Tokushima Graduate School, Institute of Soil Science and Agroecology, Agricultural Academy
Rok vydání: 2008
Předmět:
Irrigation
ALTERNATIVE FURROW IRRIGATION
Water flow
[SDE.MCG]Environmental Sciences/Global Changes
[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy
0207 environmental engineering
Soil Science
02 engineering and technology
[SDV.SA.STA]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of agriculture
medicine
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology
Drainage
Leaching (agriculture)
020701 environmental engineering
Surface irrigation
Earth-Surface Processes
Water Science and Technology
2. Zero hunger
Hydrology
FURROW IRRIGATION
WATER AND SOLUTE TRANSFER PARAMETERS
04 agricultural and veterinary sciences
15. Life on land
[INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation
6. Clean water
Water retention
HYDRUS-2D MODEL CALIBRATION AND VALIDATION
Lysimeter
[SDE]Environmental Sciences
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
Environmental science
LYSIMETER EXPERIMENTS
Distribution uniformity
DRAINAGE AND NITROGEN LEACHING
medicine.symptom
Agronomy and Crop Science
Zdroj: Agricultural Water Management
Agricultural Water Management, Elsevier Masson, 2008, 95 (4), p. 354-p. 366. ⟨10.1016/j.agwat.2007.10.021⟩
ISSN: 0378-3774
DOI: 10.1016/j.agwat.2007.10.021
Popis: The objective of this study is to simulate water and nitrogen transfers under two furrow irrigation technologies (every furrow irrigation (EFI) and alternative furrow irrigation (AFI)) on Chromic Luvisol in Sofia region, Bulgaria. A bi-dimensional water and solutes transport modeling approach, HYDRUS-2D model [Simunek, J., Sejna, M., Van Genuchten, M.T., 1999. The HYDRUS-1D and HYDRUS-2D codes for estimating unsaturated soil hydraulic and solutes transport parameters. Agron Abstr. 357] is adopted in order to consider the technology of irrigation and fertilization. The model is calibrated in six steps using detailed data observed in two cropped lysimeters. The data consist of water and nitrogen (N) profiles below ridge and furrow bed, precipitation, drainage and water/N uptake by plant. Hydrological components of the soil are derived from laboratory: water retention data (step (i)) and adjusted to field conditions when EFI is approximated by one-dimensional (step (ii)). Then a two-dimensional water flow is adopted in model simulations for parameter calibration and verification, under EFI (step (iii)) and under AFI technology (step (iv)). This model calibration and validation is then used to calibrate the solute transport parameters, that is the aim of step (v) and step (vi). EFI and particularly AFI technologies points out the necessary 2D model using for the N transfer simulation under specific fertilizer applications. Thus, this calibrated model allows predicting the impact of furrow irrigation practices and distribution uniformity on drainage and nitrogen leaching under the studied conditions.
Databáze: OpenAIRE
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