干旱区生态环境知识资源中心(Arid): Simulating and monitoring water flow, salinity distribution and yield production under buried diffuser irrigation for date palm tree in Saharan Jemna oasis (North Africa)

Arid

DOI	10.1016/j.agee.2021.107772
	Simulating and monitoring water flow, salinity distribution and yield production under buried diffuser irrigation for date palm tree in Saharan Jemna oasis (North Africa)
	Zemni, Nessrine; Slama, Fairouz; Bouksila, Fethi; Bouhlila, Rachida
通讯作者	Zemni, N (corresponding author), Univ Carthage, Natl Inst Res Rural Engn Water & Forestry INRGREF, LR20INRGREF04 Lab Rural Engn, BP 10, Ariana 2080, Tunisia. ; Zemni, N (corresponding author), Univ Tunis El Manar, Natl Engn Sch Tunis ENIT, LR99ES19 Lab Modelling Hydraul & Environm LMHE, BP 37, Tunis 1002, Tunisia.
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2022
卷号	325
英文摘要	Irrigation in traditional oases in the Mena region was possible in the past via traditional techniques (foggaras, tabia) and a relative availability of water resources. To promote the development of sustainable oases, in the context of global changes and water resources scarcity and degradation, an assessment of an innovative subsurface irrigation system (Chahbani) was conducted in Saharan Jemna oasis (South of Tunisia). Irrigation water salinity (ECw) was classified brackish (ECw ranged between 3.2 dSm(-1) and 4.5 dSm(-)(1)). Field investigations were conducted during two crop years (2018, 2019) for palm trees. Capacitance sensors (Decagon 5TE) were installed at six soil depths (0.15 m, 0.40 m, 0.60 m, 0.80, 1 m and 1.20 m) for real time monitoring of soil water moisture (theta) and pore electrical conductivity (ECp). A numerical model (HYDRUS (2D/3D)) was calibrated then applied to investigate the effect of different filed irrigation amounts ((T1(F) (73% crop evapotranspiration (ETc); T2(F) (120% ETc)) and different buried diffuser optimization (opt) positions from the trunk of the palm tree (X) and soil depths (Z): (T1(opt) (X = 1.5 m and Z 0.3 m); T2(O)(pt) (X = 0.5 m and Z = 0.3 m); T3(opt) (X = 1.5 m and Z = 0.6 m); T4(opt) (X = 0.5 m and Z = 0.6 m)) on mot water uptake, yield production and soil salinity distribution. Simulation results for both field treatments T1(F) and T2(F) showed that the amount of root water uptake was always lower than 100%(ETc) with observed yield equal to 45% and 50% for T1(F) and T2(F), respectively. According to buried diffuser position scenarios, installation of the buried diffuser at the canopy of the date palm T1(opt) (X = 1.5 m) as used in Jemna oasis, showed the least calculated relative yield (37%). However, for lateral distance, X = 0.5 m, root water uptake was equal to 649 mm for T2(Opt) (Z = 0.3 m) and 855 mm for T4(Opt) (Z = 0.6 m) with relative yield equal to 54% and 71%, respectively. According to simulation results, all position scenarios showed salt accumulation on the top soil layers and leaching requirement fraction (LR) application failed to decrease salinity for 0-0.4 m soil depth. Supplemental leaching using surface irrigation is thus recommended. Further studies for irrigation with buried diffuser under arid climate and brackish water need to focus on its impact on oasis sustainability especially when used for traditional oases as irrigation system.
英文关键词	HYDRUS (2D/3D) Subsurface irrigation Buried diffuser Salinity Oasis Date palm
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000724259300007
WOS关键词	SUBSURFACE DRIP IRRIGATION ; SOIL-WATER ; HYDRAULIC CONDUCTIVITY ; BRACKISH-WATER ; MODEL ; GROUNDWATER ; SYSTEMS ; SALINIZATION ; FERTIGATION ; PREDICTION
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374557
作者单位	[Zemni, Nessrine; Bouksila, Fethi] Univ Carthage, Natl Inst Res Rural Engn Water & Forestry INRGREF, LR20INRGREF04 Lab Rural Engn, BP 10, Ariana 2080, Tunisia; [Zemni, Nessrine; Slama, Fairouz; Bouhlila, Rachida] Univ Tunis El Manar, Natl Engn Sch Tunis ENIT, LR99ES19 Lab Modelling Hydraul & Environm LMHE, BP 37, Tunis 1002, Tunisia
推荐引用方式 GB/T 7714	Zemni, Nessrine,Slama, Fairouz,Bouksila, Fethi,et al. Simulating and monitoring water flow, salinity distribution and yield production under buried diffuser irrigation for date palm tree in Saharan Jemna oasis (North Africa)[J],2022,325.
APA	Zemni, Nessrine,Slama, Fairouz,Bouksila, Fethi,&Bouhlila, Rachida.(2022).Simulating and monitoring water flow, salinity distribution and yield production under buried diffuser irrigation for date palm tree in Saharan Jemna oasis (North Africa).AGRICULTURE ECOSYSTEMS & ENVIRONMENT,325.
MLA	Zemni, Nessrine,et al."Simulating and monitoring water flow, salinity distribution and yield production under buried diffuser irrigation for date palm tree in Saharan Jemna oasis (North Africa)".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 325(2022).