Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin)
In this study, to investigate the effects of land use changes on hydrological components of the Doroudzan Dam basin for the three periods of 1979 to 1990, from 1987 to 1999, and from 1997 to 2006, three land use maps for the years 1986, 1996 and 2005 were prepared. Then, using the semi-distributed S...
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Shahid Chamran University of Ahvaz
2022-06-01
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| Series: | علوم و مهندسی آبیاری |
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| Online Access: | https://jise.scu.ac.ir/article_16675_6d077dcca9148a99365f4bcab6db9ee8.pdf |
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| author | Yasaman Shokouhifar Heidar Zarei Ali Mohammad Akhondali Amin Khoramian |
| author_facet | Yasaman Shokouhifar Heidar Zarei Ali Mohammad Akhondali Amin Khoramian |
| author_sort | Yasaman Shokouhifar |
| collection | DOAJ |
| description | In this study, to investigate the effects of land use changes on hydrological components of the Doroudzan Dam basin for the three periods of 1979 to 1990, from 1987 to 1999, and from 1997 to 2006, three land use maps for the years 1986, 1996 and 2005 were prepared. Then, using the semi-distributed SWAT model, the basin hydrology processes were simulated. After calibration to validate the model, validation was performed for each period. The Nash-Sutcliffe coefficient in calibration and validation of the first period was 0.74 and 0.52, in the second period was 0.88 and 0.61, and in the third period was 0.83 and 0.8, respectively. Also, three scenarios were defined to determine the effect of each land use management application in the study time step (1979 to 2006). All the scenarios were simulated under the same conditions for rainfall and temperature and different land use maps. The impact of land use change under these scenarios is well observed, with the latter having a 27.7% decrease in surface runoff compared to the control scenario, as rangeland, forest, agricultural cover increased, wasteland decreased. Has found. In the third scenario, surface runoff decreased by 13.5% compared to the control scenario, but increased compared to the second scenario, as rangeland cover decreased and wasteland increased. |
| first_indexed | 2024-04-11T11:34:18Z |
| format | Article |
| id | doaj.art-22d621150bfc473eb5bf2481ac71b41a |
| institution | Directory Open Access Journal |
| issn | 2588-5952 2588-5960 |
| language | fas |
| last_indexed | 2024-04-11T11:34:18Z |
| publishDate | 2022-06-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | علوم و مهندسی آبیاری |
| spelling | doaj.art-22d621150bfc473eb5bf2481ac71b41a2022-12-22T04:26:01ZfasShahid Chamran University of Ahvazعلوم و مهندسی آبیاری2588-59522588-59602022-06-0145213915010.22055/jise.2021.36431.195216675Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin)Yasaman Shokouhifar0Heidar Zarei1Ali Mohammad Akhondali2Amin Khoramian3MSc Graduate in Department of Hydrology and Water Resources, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz. Iran.Associate Professor, Department of Hydrology and Water Resources, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz. Iran.Professor, Department of Hydrology and Water Resources, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz. Iran.PhD Graduate in Water Resources Management, Faculty of Civil Engineering, Khajeh Nasir al-Din Tusi University of TechnologyIn this study, to investigate the effects of land use changes on hydrological components of the Doroudzan Dam basin for the three periods of 1979 to 1990, from 1987 to 1999, and from 1997 to 2006, three land use maps for the years 1986, 1996 and 2005 were prepared. Then, using the semi-distributed SWAT model, the basin hydrology processes were simulated. After calibration to validate the model, validation was performed for each period. The Nash-Sutcliffe coefficient in calibration and validation of the first period was 0.74 and 0.52, in the second period was 0.88 and 0.61, and in the third period was 0.83 and 0.8, respectively. Also, three scenarios were defined to determine the effect of each land use management application in the study time step (1979 to 2006). All the scenarios were simulated under the same conditions for rainfall and temperature and different land use maps. The impact of land use change under these scenarios is well observed, with the latter having a 27.7% decrease in surface runoff compared to the control scenario, as rangeland, forest, agricultural cover increased, wasteland decreased. Has found. In the third scenario, surface runoff decreased by 13.5% compared to the control scenario, but increased compared to the second scenario, as rangeland cover decreased and wasteland increased.https://jise.scu.ac.ir/article_16675_6d077dcca9148a99365f4bcab6db9ee8.pdfdoroudzan basinland usewater balanceswat |
| spellingShingle | Yasaman Shokouhifar Heidar Zarei Ali Mohammad Akhondali Amin Khoramian Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin) علوم و مهندسی آبیاری doroudzan basin land use water balance swat |
| title | Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin) |
| title_full | Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin) |
| title_fullStr | Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin) |
| title_full_unstemmed | Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin) |
| title_short | Assessment of effects of changes in landuse on the water balance components using SWAT (Case study: Doroudzan dam basin) |
| title_sort | assessment of effects of changes in landuse on the water balance components using swat case study doroudzan dam basin |
| topic | doroudzan basin land use water balance swat |
| url | https://jise.scu.ac.ir/article_16675_6d077dcca9148a99365f4bcab6db9ee8.pdf |
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