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首页> 外文期刊>Acta Agronomica >A coupled model of stomatal conductance, photosynthesis and transpiration for passionfruit (Passiflora edulis) cultivars
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A coupled model of stomatal conductance, photosynthesis and transpiration for passionfruit (Passiflora edulis) cultivars

机译：西番莲（Sassiflora edulis）品种气孔导度，光合作用和蒸腾作用的耦合模型

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摘要

At present, crop behavior due to climate change is not well known, in particular those responses related to water and energy balances. The aim of this work was to propose and implement a model aimed to evaluate interactions among photosynthesis, stomatal conductance and transpiration phenomenon under both crop growing process and tropic climate conditions. A passion fruit crop located in Colombia (Huila Department) is taken as a study case. The actual transpiration estimated by the model was evaluated using a gravimetric type lysimeter. The results indicated that the proposed model was able to estimate the passion fruit crop transpiration under conditions in the tropic climate with a good validation of 0.30. The mean daily transpiration rate under wet weather conditions during the study period was 1.36 mm d-1.Sensitivity analysis indicated that the parameter m is identified and is highly sensitive for the case study, however, VM25, KC25, JM25, Ko25, f, B parameters showed poor sensitivity and identification.
机译：目前，由于气候变化而导致的农作物行为尚不为人所知，尤其是那些与水和能量平衡有关的反应。这项工作的目的是提出并实施一个模型，以评估在作物生长过程和热带气候条件下光合作用，气孔导度和蒸腾现象之间的相互作用。以哥伦比亚（韦拉省）的百香果作物为研究案例。使用重力式溶渗仪评估由模型估算的实际蒸腾量。结果表明，所提出的模型能够估计热带气候条件下的百香果作物的蒸腾量，验证度为0.30。研究期间在潮湿天气条件下的日平均蒸腾速率为1.36 mm d-1。敏感性分析表明参数m已确定并且对案例研究高度敏感，但是VM25，KC25，JM25，Ko25，f， B参数显示较差的敏感性和识别性。

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