Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants

Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants

Abstract We investigated whether leaching fraction (LF) is able to modify the effects of irrigation water salinity (ECiw) on evapotranspiration (ET). We conducted an experiment with a completely randomized block design using five levels of ECiw and two LFs. Results showed that the electrical conduct...

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Autores principales: Rangjian Qiu, Chunwei Liu, Zhenchang Wang, Zaiqiang Yang, Yuanshu Jing
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Science
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Acceso en línea:https://doaj.org/article/eb125d2c62194cb59de87e5d4ff74c49
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spelling oai:doaj.org-article:eb125d2c62194cb59de87e5d4ff74c492021-12-02T16:08:08ZEffects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants10.1038/s41598-017-07743-22045-2322https://doaj.org/article/eb125d2c62194cb59de87e5d4ff74c492017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07743-2https://doaj.org/toc/2045-2322Abstract We investigated whether leaching fraction (LF) is able to modify the effects of irrigation water salinity (ECiw) on evapotranspiration (ET). We conducted an experiment with a completely randomized block design using five levels of ECiw and two LFs. Results showed that the electrical conductivity of drainage water (ECdw) in an LF of 0.29 was considerably higher during the 21–36 days after transplanting (DAT), and considerably lower after 50 DAT than in an LF of 0.17. The hourly, nighttime, daily, cumulative and seasonal ET all decreased considerably as a result of an increase in the ECiw. The daily ET started to be considerably higher in the LF of 0.29 than in the LF of 0.17 from 65 DAT. Compared with the LF of 0.17, the seasonal ET in the LF of 0.29 under various ECiw levels increased by 4.8%–8.7%. The Maas and Hoffman and van Genuchten and Hoffman models both corresponded well with the measured relative seasonal ET and the LF had no marked effects on these model parameters. Collectively, an increase in the level of ECiw always decreased the ET substantially. An increase in the LF increased the ET considerably, but there was a time lag.Rangjian QiuChunwei LiuZhenchang WangZaiqiang YangYuanshu JingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Rangjian Qiu
Chunwei Liu
Zhenchang Wang
Zaiqiang Yang
Yuanshu Jing
Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
description Abstract We investigated whether leaching fraction (LF) is able to modify the effects of irrigation water salinity (ECiw) on evapotranspiration (ET). We conducted an experiment with a completely randomized block design using five levels of ECiw and two LFs. Results showed that the electrical conductivity of drainage water (ECdw) in an LF of 0.29 was considerably higher during the 21–36 days after transplanting (DAT), and considerably lower after 50 DAT than in an LF of 0.17. The hourly, nighttime, daily, cumulative and seasonal ET all decreased considerably as a result of an increase in the ECiw. The daily ET started to be considerably higher in the LF of 0.29 than in the LF of 0.17 from 65 DAT. Compared with the LF of 0.17, the seasonal ET in the LF of 0.29 under various ECiw levels increased by 4.8%–8.7%. The Maas and Hoffman and van Genuchten and Hoffman models both corresponded well with the measured relative seasonal ET and the LF had no marked effects on these model parameters. Collectively, an increase in the level of ECiw always decreased the ET substantially. An increase in the LF increased the ET considerably, but there was a time lag.
format article
author Rangjian Qiu
Chunwei Liu
Zhenchang Wang
Zaiqiang Yang
Yuanshu Jing
author_facet Rangjian Qiu
Chunwei Liu
Zhenchang Wang
Zaiqiang Yang
Yuanshu Jing
author_sort Rangjian Qiu
title Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
title_short Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
title_full Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
title_fullStr Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
title_full_unstemmed Effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
title_sort effects of irrigation water salinity on evapotranspiration modified by leaching fractions in hot pepper plants
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/eb125d2c62194cb59de87e5d4ff74c49
work_keys_str_mv AT rangjianqiu effectsofirrigationwatersalinityonevapotranspirationmodifiedbyleachingfractionsinhotpepperplants
AT chunweiliu effectsofirrigationwatersalinityonevapotranspirationmodifiedbyleachingfractionsinhotpepperplants
AT zhenchangwang effectsofirrigationwatersalinityonevapotranspirationmodifiedbyleachingfractionsinhotpepperplants
AT zaiqiangyang effectsofirrigationwatersalinityonevapotranspirationmodifiedbyleachingfractionsinhotpepperplants
AT yuanshujing effectsofirrigationwatersalinityonevapotranspirationmodifiedbyleachingfractionsinhotpepperplants
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