Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam

In this study, a spatial dynamic model was developed, to simulate nitrogen dynamics in Van Hoi commune, Tam Duong district, Vietnam, for different soil and land use types, under different irrigation and fertilizer regimes. The model has been calibrated using measured nitrogen concentrations in soil...

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Autores principales: Mai, V.T., Hoanh, Chu Thai, Keulen, H. van, Hessel, R.
Formato: Journal Article
Lenguaje:Inglés
Publicado: 2013
Materias:
Acceso en línea:https://hdl.handle.net/10568/40281
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author Mai, V.T.
Hoanh, Chu Thai
Keulen, H. van
Hessel, R.
author_browse Hessel, R.
Hoanh, Chu Thai
Keulen, H. van
Mai, V.T.
author_facet Mai, V.T.
Hoanh, Chu Thai
Keulen, H. van
Hessel, R.
author_sort Mai, V.T.
collection Repository of Agricultural Research Outputs (CGSpace)
description In this study, a spatial dynamic model was developed, to simulate nitrogen dynamics in Van Hoi commune, Tam Duong district, Vietnam, for different soil and land use types, under different irrigation and fertilizer regimes. The model has been calibrated using measured nitrogen concentrations in soil solution in March and August 2004 and validated for data from March and August 2005. Lateral flow was low in this level area. Percolation was the main process leading to high nitrogen leaching losses to ground water. Calculated annual leaching losses varied from 88 to 122 kg N ha-1 in flowers, 64 to 82 in vegetables of the cabbage group, 51 to 76 in chili, 56 to 75 in vegetables of the squash group, and 36 to 55 in rice.
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spelling CGSpace402812025-03-11T09:50:20Z Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam Mai, V.T. Hoanh, Chu Thai Keulen, H. van Hessel, R. intensive farming nitrogen leaching rivers deltas irrigation land use soil water content vegetables crop production fertilizers weather models calibration In this study, a spatial dynamic model was developed, to simulate nitrogen dynamics in Van Hoi commune, Tam Duong district, Vietnam, for different soil and land use types, under different irrigation and fertilizer regimes. The model has been calibrated using measured nitrogen concentrations in soil solution in March and August 2004 and validated for data from March and August 2005. Lateral flow was low in this level area. Percolation was the main process leading to high nitrogen leaching losses to ground water. Calculated annual leaching losses varied from 88 to 122 kg N ha-1 in flowers, 64 to 82 in vegetables of the cabbage group, 51 to 76 in chili, 56 to 75 in vegetables of the squash group, and 36 to 55 in rice. 2013 2014-06-13T14:47:18Z 2014-06-13T14:47:18Z Journal Article https://hdl.handle.net/10568/40281 en Limited Access Mai, V. T.; Hoanh, Chu Thai; Van Keulen, H.; Hessel, R. 2013. Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam. Asian Journal of Water, Environment and Pollution, 10(3):51-61.
spellingShingle intensive farming
nitrogen
leaching
rivers
deltas
irrigation
land use
soil water content
vegetables
crop production
fertilizers
weather
models
calibration
Mai, V.T.
Hoanh, Chu Thai
Keulen, H. van
Hessel, R.
Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam
title Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam
title_full Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam
title_fullStr Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam
title_full_unstemmed Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam
title_short Spatial modelling for nitrogen leaching from intensive farming in Red River Delta of Vietnam
title_sort spatial modelling for nitrogen leaching from intensive farming in red river delta of vietnam
topic intensive farming
nitrogen
leaching
rivers
deltas
irrigation
land use
soil water content
vegetables
crop production
fertilizers
weather
models
calibration
url https://hdl.handle.net/10568/40281
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