对比环境下用STICS土壤作物模型模拟多年生甘蔗生长:准确性和稳健性评估

IF 6.4 1区 农林科学 Q1 AGRONOMY
Lelenda Florent Kebalo , Antoine Versini , Jean-Christophe Soulie , Marion Ramos , Léa Chevalier , Maxime Chaput , Mathias Christina
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引用次数: 0

摘要

由于其在世界范围内生物能源和糖生产中的作用,甘蔗具有重要的经济意义。然而,随着全球需求的增加,需要研究确定可持续提高产量的最佳管理实践,而建模方法可能会有所帮助。我们的研究旨在参数化和验证在广泛的环境中甘蔗生长的STICS土壤-作物模型。该模型不是甘蔗特有的,但可以模拟碳和氮循环的所有组成部分,对许多研究都很有用。参数化数据集包括留尼旺岛品种(主要为R570)的20个作物周期,验证数据集包括R570品种的62个作物周期和30个国际品种的158个作物周期。模型的参数化包括地下变量(根长、生物量和多年生储量)和地上变量(叶面积指数、截获辐射和生物量成分(茎、叶))。对地上变量进行验证。除叶面积和质量外,该模型对地上各变量的模拟均较好。尽管只在留尼汪岛品种上进行了参数化,但该模型足够强大,可以模拟许多国际品种收获时的一些地上生物量。此外,对模型的气候域有效性进行了评估,收获时生物量的误差在高产量和低产量环境(高或低水分可用性和温度)下都有所增加,表明未来的改进可以在补充工作中进行。该模型具有良好的鲁棒性,可用于模拟类似品种和气候条件下的甘蔗生长,从而探索在保持种植系统可持续性的同时提高生产力的管理策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling perennial sugarcane growth with the STICS soil-crop model in contrasted environments: Assessment of accuracy and robustness
Sugarcane holds significant economic importance due to its role in bioenergy and sugar production worldwide. However, as global demand increases, research is needed to identify the best management practices for sustainable yield improvement, and modeling approaches can be helpful. Our study aimed to parameterize and validate the STICS soil-crop model for sugarcane growth in an extensive range of environments. This model is not sugarcane specific but allows for the simulation of all the components of the carbon and nitrogen cycles and is useful for many research studies. The parameterization dataset included 20 crop cycles with Reunion Island varieties (mainly R570), and the validation dataset included 62 crop cycles with R570 variety and 158 crop cycles with 30 international varieties. The model was parameterized with belowground (root length, biomass, and perennial reserve) and aboveground variables, including leaf area index, intercepted radiation, and biomass components (stem, leaves). Validation was performed on aboveground variables. The model satisfactorily simulated all aboveground variables except for leaf area and mass, which were less accurately simulated. Despite being parameterized only on Reunion Island varieties, the model was robust enough to simulate some aboveground biomass at harvest for many international varieties. Additionally, the climatic domain of validity of the model was evaluated, and error on biomass at harvest increased for both high and low-yielded environments (high or low water availability and temperature), indicating that future improvements could be carried out in a complementary work. The STICS model can be used with good robustness to simulate sugarcane growth under similar varieties and pedoclimatic conditions, allowing exploration of management strategies that can boost productivity while maintaining the sustainability of cropping systems.
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来源期刊
Field Crops Research
Field Crops Research 农林科学-农艺学
CiteScore
9.60
自引率
12.10%
发文量
307
审稿时长
46 days
期刊介绍: Field Crops Research is an international journal publishing scientific articles on: √ experimental and modelling research at field, farm and landscape levels on temperate and tropical crops and cropping systems, with a focus on crop ecology and physiology, agronomy, and plant genetics and breeding.
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