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...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/40281 |
| _version_ | 1855518773714354176 |
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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. |
| format | Journal Article |
| id | CGSpace40281 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| record_format | dspace |
| 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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