四个模型的参数化,以估计在太阳能温室中的作物蒸发透气
Shikai Gao1,2, Yu Li1,2, Xuewen Gong1,2
1School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.
Plants (Basel, Switzerland)
|June 19, 2024
概括
简化作物蒸发透气 (ET) 模型对于温室园艺至关重要. 在太阳能温室中,PA-PT模型在所有生长阶段的番茄ET估计中表现出卓越的准确性.
科学领域:
- 农业工程 农业工程
- 园艺科学 园艺科学
- 水资源管理 水资源管理
背景情况:
- 准确估计作物蒸发转化 (ET) 对于优化温室种植至关重要.
- 对ET估计的机械模型需要简化,以便用于实际园艺应用.
- 在ET模型中的电阻参数可以显著影响其可靠性.
研究的目的:
- 简化和评估温室番茄种植的四种机械 ET 模型.
- 评估不同生长阶段和整个生长季节的模型性能.
- 确定最可靠的模型来估计太阳能温室中的番茄ET.
主要方法:
- 四个ET模型 (Penman-Monteith,Priestley-Taylor,Shuttleworth-Wallace,Crop Coefficient) 进行了参数化,考虑了阻力效应 (PA-PM,PA-PT,PA-CC,PA-SW) 的情况.
- 在2016-2017年和2019-2021年期间,在太阳能温室中使用权重溶解仪测量了番茄ET.
- 模型参数使用2016年数据进行调整,并与其他年份的数据进行验证.
主要成果:
- 在所有四个增长阶段,PA-PT和PA-CC模型表现良好.
- PA-PM和PA-SW模型仅在开发和中期增长阶段准确.
- 在整个赛季中,PA-PT模型表现出最低的根平均平方误差和最高的一致指数.
结论:
- 在太阳能温室中估计番茄蒸发转化时,最推的就是PA-PT模型.
- 简化的机械模型,特别是PA-PT,为园艺水资源管理提供了可靠的解决方案.
- 精确的ET估计有助于在受控环境中有效灌和资源管理.
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