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在APSIM中模拟料草的生长和脱叶

Rogerio Cichota¹, Xiumei Yang¹

¹The New Zealand Institute for Plant & Food Research Limited, Lincoln, New Zealand.

|August 8, 2025

概括

一个新的作物模型在农业生产系统模拟器 (APSIM) 中模拟了草 (Plantago lanceolata L.) 的生长和脱叶. 虽然它能很好地预测季节性生物质和,但对于单个脱叶事件需要改进.

科学领域:

农业科学农业科学
农业学是一种农业学.
植物科学植物科学

背景情况:

草原料 (Plantago lanceolata L.) 是放牧系统的重要组成部分.
准确的模拟模型对于优化料管理和生产率至关重要.
现有的模型可能无法完全捕捉植物在脱叶过程中的生长动态.

研究的目的:

开发和测试一种作物系统模型,用于模拟草原料生长和脱叶管理.
将该模型集成到农业生产系统模拟器 (APSIM) 框架中.
评估该模型在不同地区的适用性以及扩展到新品种的可能性.

主要方法:

来自文学和现场试验的数据被用来参数化模型.
该模型是为了模拟脱叶后的植物生长和再生而开发的.
验证的重点是新西兰的纯菜种群,使用生物质积累和含量作为指标.

主要成果:

该模型在预测纯木兰种群的季节性生物质积累和含量 (纳什-苏特克利夫效率>0.8) 方面表现良好.
预测单个脱叶事件的准确性较低 (NSE在-1.0和0.6之间).
该模型能够在APSIM中模拟单种植和混合剑.

结论:

开发的与APSIM兼容的模型为模拟草料提供了一个有价值的工具.
需要进一步的数据来提高模型在预测生物质分割和对环境因素和脱叶反应的准确性.
该模型支持改善牧场系统管理的努力,以减少环境影响和持续提高生产力.

关键词:

作物系统建模作物系统建模放牧系统的放牧系统混合剑的混合剑.新西兰新西兰新西兰新西兰牧场牧场牧场牧场牧场兰塞罗拉达的植物

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