Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12517-017-3374-5 |
Surface irrigation performance of date palms under water scarcity in arid irrigated lands | |
Haj-Amor, Zied1; Ritzema, Henk2; Hashemi, Hossein3,4; Bouri, Salem1 | |
通讯作者 | Haj-Amor, Zied |
来源期刊 | ARABIAN JOURNAL OF GEOSCIENCES |
ISSN | 1866-7511 |
EISSN | 1866-7538 |
出版年 | 2018 |
卷号 | 11期号:2 |
英文摘要 | In this paper, a study on the performance of surface irrigation of date palms in a Tunisian arid area (Douz oasis) is presented. The study is conducted in 16 plots with various sizes and soil textures over a 4-year period (2012-2015). In the first step, an assessment of total water requirements of the date palms is carried out. Then, the surface irrigation performance is analyzed using three indicators, i.e., the relative water supply (RWS) indicator, the uniformity index of water distribution (D-U), and the water application efficiency (E-a). Finally, the irrigation management problems are identified. The results indicate that in the arid Tunisian Saharan oases, the soil texture, plot size, and farmers’ practices (especially irrigation duration) have significant effects on surface irrigation performance. The average annual net irrigation requirements of date palms are about 2400 mm. The RWS increases from 1.8 in the smaller plots (0.5 ha) to 3.6 in the largest plots (2.5 ha), implying that the increase in the plot size requires an excessive water supply. D-U decreases from 80.7 in the 0.5 ha plots to 65.4 in the 2.5 ha plots; however, no significant difference in the E-a is observed. The results show that the soil texture has no influence on the RWS and D-U, but the E-a is significantly higher in the loamy-sand soils (46.7%) compared to the sandy soils (36.3%). Overall, RWSindicator is higher than 1 (RWS=2.6) implying excessive irrigation supply to the system. Although D-U is relatively uniform (>60%), E-a is relatively low (<50%) indicating that the current irrigation management is inefficient. These findings have a paramount importance for improving irrigation water management in the Tunisian Saharan oases. |
英文关键词 | Arid area Irrigation Performance Plot size Soil texture Water supply |
类型 | Article |
语种 | 英语 |
国家 | Tunisia ; Netherlands ; Sweden |
收录类别 | SCI-E |
WOS记录号 | WOS:000423618000021 |
WOS关键词 | MANAGEMENT ; TUNISIA ; SPAIN ; BASIN ; SALINIZATION ; EFFICIENCY ; SALINITY ; DISTRICT ; REGION ; OASIS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207698 |
作者单位 | 1.Natl Engn Sch Sfax, Water Energy & Environm Lab, Sfax 3038, Tunisia; 2.Wageningen Univ, Water Resources Management Grp, POB 46, NL-6700 AA Wageningen, Netherlands; 3.Lund Univ, Ctr Middle Eastern Studies, Box 118, SE-22100 Lund, Sweden; 4.Lund Univ, Dept Water Resources Engn, Box 118, SE-22100 Lund, Sweden |
推荐引用方式 GB/T 7714 | Haj-Amor, Zied,Ritzema, Henk,Hashemi, Hossein,et al. Surface irrigation performance of date palms under water scarcity in arid irrigated lands[J],2018,11(2). |
APA | Haj-Amor, Zied,Ritzema, Henk,Hashemi, Hossein,&Bouri, Salem.(2018).Surface irrigation performance of date palms under water scarcity in arid irrigated lands.ARABIAN JOURNAL OF GEOSCIENCES,11(2). |
MLA | Haj-Amor, Zied,et al."Surface irrigation performance of date palms under water scarcity in arid irrigated lands".ARABIAN JOURNAL OF GEOSCIENCES 11.2(2018). |
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