Capacity of AquaCrop model in simulating performance variables and water use efficiency of spring rapeseed

被引:0
|
作者
Aboodeh, Hana [1 ]
Bakhshandeh, Abdolmehdi [1 ]
Moradi-Telavat, Mohammad Reza [1 ]
Siadat, Seyyed-Ataollah [1 ]
Moosavi, Seyyed-Amir [1 ]
Alamisaeid, Khalil [1 ]
机构
[1] Univ Khuzestan, Dept Plant Prod & Genet, Agr Sci & Nat Resources, Ahwaz, Khuzestan, Iran
关键词
Biomass; crop modeling; transpiration; vegetation; water use efficiency; Biomasse; mod & eacute; lisation des plantes; v & eacute; g & eacute; tation; efficience d'utilisation de l'eau; DEFICIT IRRIGATION; YIELD; MAIZE; FULL; CROP; WHEAT;
D O I
10.1051/ocl/2024016
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A study was conducted to simulate the performance of rapeseed using the AquaCrop model at Khuzestan University of Agricultural Sciences and Natural Resources (Iran), over two crop years, 2021-2022 and 2022-2023. The results of the first year were used to calibrate the model, while the results of the second year were used to validate it. The research showed that the highest grain yield (1.572-1.415 tons/hectare) and water use efficiency (0.50-0.45 kg/m3) were obtained the first year from the control treatment, with a density of 110 plants m-2, and the Hayola 4815 cultivar, and the second year, with a density of 140 plants m-2. The normalized root mean square error (NRMSE) values were 1.82%, 15.36%, and 14.15% for grain yield, biomass, and water use efficiency, respectively, after the calibration phase and 15.4%, 19.99%, and 6.22%, after the validation phase. The model efficiency factor (EF) always resulted in values above 95%. According to the average relative error (RE), grain yield was overestimated both after calibration and validation steps, while biomass and water use efficiency were both underestimated. These results suggest that the simulations with AquaCrop model can be considered reliable for simulating spring rapeseed. Une & eacute;tude a & eacute;t & eacute; men & eacute;e pour simuler le rendement du colza & agrave; l'aide du mod & egrave;le AquaCrop & agrave; l'Universit & eacute; des Sciences Agricoles et des Ressources Naturelles du Khuzestan (Iran) au cours de deux campagnes agricoles, 2021-2022 et 2022-2023. Les r & eacute;sultats de la premi & egrave;re ann & eacute;e ont & eacute;t & eacute; utilis & eacute;s pour calibrer le mod & egrave;le, et ceux de la deuxi & egrave;me ann & eacute;e pour le valider. Cette recherche a montr & eacute; que le rendement en grains le plus & eacute;lev & eacute; (1,572-1,415 tonnes/hectare) et la meilleure efficience de l'eau (0,50-0,45 kg/m3) ont & eacute;t & eacute; obtenus pour le traitement t & eacute;moin, avec une densit & eacute; de 110 plantes.m-2, et le cultivar Hayola 4815. Lors de la deuxi & egrave;me ann & eacute;e, ces m & ecirc;mes variables ont & eacute;t & eacute; maximis & eacute;es pour une densit & eacute; de 140 plantes.m-2. Les valeurs de l'erreur quadratique moyenne normalis & eacute;e (NRMSE) pour le rendement en grains, la biomasse et l'efficience de l'eau & eacute;taient de 1,82%, 15,36% et 14,15% apr & egrave;s calibration, et de 15,4%, 19,99% et 6,22 % & agrave; l'issue de la validation. Les valeurs d'efficience du mod & egrave;le(EF) & eacute;taient sup & eacute;rieures & agrave; 95 %. L'erreur relative moyenne (ER) indiquait une surestimation du rendement en grains simul & eacute; aussi bien & agrave; l'issue de la calibration que de la validation. Pour la biomasse et l'efficience de l'eau, les valeurs simul & eacute;es & eacute;taient sous-estim & eacute;es aussi bien en phase de calibration que de validation. Ces r & eacute;sultats sugg & egrave;rent que la pr & eacute;cision du mod & egrave;le AquaCrop peut & ecirc;tre consid & eacute;r & eacute;e comme acceptable pour la simulation du colza de printemps.
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页数:13
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