Assessment of water quality ions in brackish water on drip irrigation system performance applied in saline areas
dc.contributor.author
dc.date.accessioned
2023-10-11T09:43:35Z
dc.date.available
2023-10-11T09:43:36Z
dc.date.issued
2023-11-01
dc.identifier.issn
0378-3774
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dc.description.abstract
Utilizing brackish water with drip irrigation technology, due to its precise water control alleviates the secondary soil salinization, and improves crop yield and quality, which offers sustainable agricultural development opportunities in saline areas. However, the complex characteristics of brackish water increase the risk of drip irrigation emitter clogging, which inhibit its promotion and adoption. It is necessary to find out the dominant water quality ions that lead to emitter clogging under multiple ion interactions when using brackish water under multiple ion coexistence conditions. Thus, the in-situ pilot research was conducted to study the emitter clogging mechanism using brackish water collected from 16 different salt-alkaline regions. A comprehensive evaluation with the consideration of 11 water quality ions on emitter clogging were conducted. Results showed that the degree of emitter clogging gradually increased in the first 40 days of irrigation, hereafter started an accelerated reduction until the days 64 of brackish water application. Spearman correlation and structural equation modelling were used to identify the main factors contribute to emitter clogging. And results indicated that calcium fouling (CF) and silica fouling (SF) were the major fouling minerals in the emitter flow channels. Ca2+, CO32-+HCO3-, pH, total hardness (TH), and zeta potential (ZP) were the key water characteristics leading to emitter clogging. These factors directly affected CF and SF, while also affecting the Mg2+, Mn2+, Cu2+, and other water quality factors which indirectly enhanced the CF and SF. Thereafter a few water quality control strategies were proposed based on emitter clogging and soil salinization mitigation. This study identified the key water quality ions that induce drip irrigation emitter clogging when using brackish water, provided solid support for solving the clogging issue, and promoted the high-efficient utilization of brackish water in saline areas
dc.description.sponsorship
This work was supported by the National Natural Science Foundation of China (51790531), Bingtuan Science and Technology Program (2022DB024), Special Research Project of Kashgar River in Xinjiang (XJKGKY001).
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application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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Reproducció digital del document publicat a: https://doi.org/10.1016/j.agwat.2023.108544
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Agricultural Water Management, 2023, vol. 289, art.núm.108544
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Articles publicats (D-EQATA)
dc.rights
Reconeixement-NoComercial 4.0 Internacional
dc.source
Wang, Yayu Xiao, Yang Puig Bargués, Jaume Zhou, Bo Liu, Zeyuan Muhammad, Tahir Liang, Hongbang Maitusong, Memetmin Wang, Zhenhua Li, Yunkai 2023 Assessment of water quality ions in brackish water on drip irrigation system performance applied in saline areas Agricultural Water Management 289 art.núm.108544
dc.subject
dc.title
Assessment of water quality ions in brackish water on drip irrigation system performance applied in saline areas
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
037344
dc.type.peerreviewed
peer-reviewed
dc.identifier.eissn
1873-2283