Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.17221/17/2011-SWR |
Simulation of Water and Salts Dynamics in Bouhajla (Central Tunisia): Exceptional Rainfall Effect | |
Kanzari, Sabri1,2; Hachicha, Mohamed1; Bouhlila, Rachida2; Battle-Sales, Jorge3 | |
通讯作者 | Kanzari, Sabri |
来源期刊 | SOIL AND WATER RESEARCH |
ISSN | 1801-5395 |
EISSN | 1805-9384 |
出版年 | 2012 |
卷号 | 7期号:1页码:36-44 |
英文摘要 | Arid and semi-arid regions face the risk of soils and aquifers salinization. Rainy events are rare which is characteristic of these regions. They play a significant role in the leaching of salts from topsoil to deeper layers, which increases the risk of aquifers salinization. For this reason, a plot was selected in the semi-arid region of Bou Hajla (Central Tunisia). The simulation of water and salts dynamics was carried out by Hydrus-1D. Model calibration was realised on a flood irrigation experiment during 10 days and in a depth of 4 m. The hydrodynamic parameters were determined by inverse modelling. Model validation was performed successfully during 577 days. The simulation of water and salts dynamics has allowed the analysis of two scenarios: (1) the effect of a very rainy event (> 50mm/day) on the dynamics of salts. This type of event allows leaching of the accumulated salts in the topsoil which promotes their burial in the depth; (ii) the long-term evolution of the saline profile in 20 years showed the cyclical nature of salts leaching in the topsoil, the permanent accumulation of salts in the depth of around 2 m, and a continuous leaching in the deeper layers (around 4 m), which may increase groundwater contamination risk. |
英文关键词 | aquifer Central Tunisia Hydrus-1D rainfall salinization soil |
类型 | Article |
语种 | 英语 |
国家 | Tunisia ; Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000310182000005 |
WOS关键词 | SOLUTE TRANSPORT ; SOIL ; FLOW ; GROUNDWATER ; PARAMETERS |
WOS类目 | Soil Science ; Water Resources |
WOS研究方向 | Agriculture ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/175045 |
作者单位 | 1.Natl Inst Res Rural Engn Waters & Forests Tunis, Lab Environm Risk Management Irrigated Agr, Tunis, Tunisia; 2.Natl Engn Sch Tunis, Lab Hydraul & Environm Modelling, Tunis, Tunisia; 3.Univ Valencia, Dept Plant Biol, Valencia, Spain |
推荐引用方式 GB/T 7714 | Kanzari, Sabri,Hachicha, Mohamed,Bouhlila, Rachida,et al. Simulation of Water and Salts Dynamics in Bouhajla (Central Tunisia): Exceptional Rainfall Effect[J],2012,7(1):36-44. |
APA | Kanzari, Sabri,Hachicha, Mohamed,Bouhlila, Rachida,&Battle-Sales, Jorge.(2012).Simulation of Water and Salts Dynamics in Bouhajla (Central Tunisia): Exceptional Rainfall Effect.SOIL AND WATER RESEARCH,7(1),36-44. |
MLA | Kanzari, Sabri,et al."Simulation of Water and Salts Dynamics in Bouhajla (Central Tunisia): Exceptional Rainfall Effect".SOIL AND WATER RESEARCH 7.1(2012):36-44. |
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