The use of innovative technologies to improve treated wastewater irrigation of olive trees in the Souss-Massa region, Morocco

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-08-09 DOI:10.2166/wrd.2024.018

I. Mansir, Yassine Naji, A. Scardigno, G. Dragonetti, Mohamed El Otmani, L. Bouchaou, R. Choukr-allah

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Abstract

Treated wastewater (TWW) use represents a strategic prospect for sustainable agricultural development in water-scarce countries. The objective of this study was to evaluate the feasibility of adopting an innovative nozzle and irrigation management support (SIM) to promote the cultivation of olive trees under TWW in Morocco. The study involved 4-year-old olive trees irrigated according to the water requirement estimated by both the SIM model and the FAO56 method. The results showed that neither agronomic and physiological parameters nor leaves were affected by irrigation with TWW. However, the soil reacted differently as its alkalinity but witnessed a decrease in the fresh water (FW) treatments. The soil solution electrical conductivity was generally higher for TWW than FW. The savings on water and fertilizer costs generated by the TWW and TWW + SIM treatments are 570€ and 585€/ha, respectively, and the adoption of the two innovations generates additional net benefits equal to 45,000€, while to the nozzle with TWW alone, additional net benefits were observed that is 42,000€. A minimum increase in return of only 0.6% is needed to cover investment costs over the 30-year life of the project and the investment could be profitable even with a decrease in return of 48%.

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利用创新技术改善摩洛哥 Souss-Massa 地区橄榄树的废水处理灌溉系统

废水处理（TWW）是缺水国家农业可持续发展的战略前景。本研究的目的是评估采用创新喷头和灌溉管理支持（SIM）促进摩洛哥在废水处理下种植橄榄树的可行性。研究涉及根据 SIM 模型和 FAO56 方法估算的需水量灌溉的 4 年生橄榄树。结果表明，农艺和生理参数以及叶片均未受到 TWW 灌溉的影响。不过，土壤碱度的反应不同，但在淡水（FW）处理中有所下降。土壤溶液电导率一般来说 TWW 比 FW 高。TWW 处理和 TWW + SIM 处理节省的水肥成本分别为 570 欧元/公顷和 585 欧元/公顷，采用这两种创新方法产生的额外净收益为 45,000 欧元，而仅采用 TWW 的喷嘴产生的额外净收益为 42,000 欧元。在项目的 30 年生命周期内，最低只需增加 0.6% 的回报率即可收回投资成本，即使回报率下降 48%，投资也是有利可图的。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.