Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model

Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model

Trabajo desarrollado bajo la financiación del proyecto “Soil Hydrology research platform underpinning innovation to manage water scarcity in European and Chinese cropping Systems” (773903), coordinado por José Alfonso Gómez Calero, investigador del Instituto de Agricultura Sostenible (IAS).

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Bibliographic Details
Main Authors: Wu, Xun, Zuo, Qiang, Shi, Jianchu, Wang, Lichun, Xue, Xuzhang, Ben-Gal, Alon
Other Authors: National Natural Science Foundation of China
Format: artículo biblioteca
Language:English
Published: Elsevier 2020-10-01
Subjects:Root water uptake, Relative transpiration, Hysteresis effect, Water stress, Recovery,
Online Access:http://hdl.handle.net/10261/252555
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100001809
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spelling dig-ias-es-10261-2525552022-10-01T04:31:10Z Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model Wu, Xun Zuo, Qiang Shi, Jianchu Wang, Lichun Xue, Xuzhang Ben-Gal, Alon National Natural Science Foundation of China National Key Research and Development Program (China) European Commission Root water uptake Relative transpiration Hysteresis effect Water stress Recovery Trabajo desarrollado bajo la financiación del proyecto “Soil Hydrology research platform underpinning innovation to manage water scarcity in European and Chinese cropping Systems” (773903), coordinado por José Alfonso Gómez Calero, investigador del Instituto de Agricultura Sostenible (IAS). During wetting-drying cycles, divergence is often found between the immediately improved soil water conditions after re-watering and the recovery of plant water status from stress, which ensues only gradually. Such an apparent hysteresis effect of water stress (HEWS) is usually neglected in simulating root-water-uptake (RWU) by empirical models. To consider HEWS in the empirical macroscopic RWU model of Feddes, a water stress recovery coefficient (δ) was introduced based on two lysimetric experiments under greenhouse and field conditions for winter wheat. The integrated effects of historical water stress events were investigated by assuming that the normalized influence weight of each past stress event declines with the increase of time interval before simulation as an exponential function of attenuation rate. Although δ could be described by an exponential function of an integrative index representing the general historical stress extent (R2 = 0.65, P < 0.001), with an attenuation rate smaller than 0.13, it is challenging to establish such a function practically. An attenuation rate close to zero means HEWS is mainly dominated by the water stress on the previous day, validated by a significant relationship between the relative transpiration or stomatal conductance on the day after irrigation and the water stress extent on the day before irrigation. Therefore, a simplification, substituting the integrative index in the exponential function with the stress extent on the previous day, was proposed for estimating δ. Compared to the traditional RWU model, the revised model considering HEWS was more successful in simulating relative transpiration and soil water dynamics. Root mean square error of relative transpiration was reduced by 65.9 % and of soil water by 30 % in the greenhouse experiment and by 7.4 % and 12.5 %, respectively, in the field experiment. This research was supported partly by National Natural Science Foundation of China (U1706211), National Key Research and Development Plan (2016YFD0200303) and National Natural Science Foundation of China (51790532, 51479199). This project has also received support from the European Union’s Horizon 2020 research and innovation programme under Project SHui, grant agreement No 773903. Peer reviewed 2021-10-19T08:06:39Z 2021-10-19T08:06:39Z 2020-10-01 artículo http://purl.org/coar/resource_type/c_6501 Agricultural Water Management 240: 106293 (2020) 0378-3774 http://hdl.handle.net/10261/252555 10.1016/j.agwat.2020.106293 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100001809 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/773903 Postprint https://doi.org/10.1016/j.agwat.2020.106293 No open application/pdf Elsevier
institution IAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-ias-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IAS España
language English
topic Root water uptake
Relative transpiration
Hysteresis effect
Water stress
Recovery
Root water uptake
Relative transpiration
Hysteresis effect
Water stress
Recovery
spellingShingle Root water uptake
Relative transpiration
Hysteresis effect
Water stress
Recovery
Root water uptake
Relative transpiration
Hysteresis effect
Water stress
Recovery
Wu, Xun
Zuo, Qiang
Shi, Jianchu
Wang, Lichun
Xue, Xuzhang
Ben-Gal, Alon
Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model
description Trabajo desarrollado bajo la financiación del proyecto “Soil Hydrology research platform underpinning innovation to manage water scarcity in European and Chinese cropping Systems” (773903), coordinado por José Alfonso Gómez Calero, investigador del Instituto de Agricultura Sostenible (IAS).
author2 National Natural Science Foundation of China
author_facet National Natural Science Foundation of China
Wu, Xun
Zuo, Qiang
Shi, Jianchu
Wang, Lichun
Xue, Xuzhang
Ben-Gal, Alon
format artículo
topic_facet Root water uptake
Relative transpiration
Hysteresis effect
Water stress
Recovery
author Wu, Xun
Zuo, Qiang
Shi, Jianchu
Wang, Lichun
Xue, Xuzhang
Ben-Gal, Alon
author_sort Wu, Xun
title Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model
title_short Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model
title_full Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model
title_fullStr Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model
title_full_unstemmed Introducing water stress hysteresis to the Feddes empirical macroscopic root water uptake model
title_sort introducing water stress hysteresis to the feddes empirical macroscopic root water uptake model
publisher Elsevier
publishDate 2020-10-01
url http://hdl.handle.net/10261/252555
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100001809
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