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作 者:邓升 温毓繁 彭遥 张杰 谭淋露 DENG Sheng;WEN Yufan;PENG Yao;ZHANG Jie;TAN Linlu(Institute of Rural Water,Jiangxi Institute of Hydraulic Research,Nanchang,Jiangxi 330029,China)
机构地区:[1]江西省水利科学院农村水利研究所,江西南昌330029
出 处:《天津农业科学》2022年第3期85-90,共6页Tianjin Agricultural Sciences
基 金:国家自然科学基金项目(51879072);江西省水利厅科技项目(KT201804)。
摘 要:为了实现避雨栽培旱渍胁迫下番茄蒸腾量的高精度计算,在考虑气象、作物、土壤水分等变量因子对蒸腾量影响的基础上,建立了番茄蒸腾过程因素模型;为了验证模型在不同灌溉下模拟值的精确度,采用正常灌水(CK)及苗期不同干旱花后不同渍水的12个水分处理的数据进行验证分析。结果表明:模拟番茄日蒸腾量模型的检测精度达到85%以上,能较好地反映番茄日蒸腾量;CK及不同水分状况的12个处理数据的验证结果表明,模型的标准误差介于0.22~0.33 mm之间,相对误差介于10.2%~17.9%之间。综合而言,番茄蒸腾量模型模拟精确度较高,能够较好地反映番茄日蒸腾量。In order to realize the highly precise calculation of tomato transpiration under rain shelter and drought-waterlogging,a factor model of tomato transpiration process was established based on effects of meteorological,crop,soil moisture and other variables on transpiration.In order to verify the accuracy of simulation values of the model under different irrigation conditions,the data of normal irrigation(CK)and 12 different water treatments of drought at seedling stage and waterlogging at post-flowering were used for verification and analysis.The results showed that all the detection accuracy of factor model of tomato transpiration process wer more than 85%,indicating that the model could reflect the daily transpiration of tomato.The validation results of CK and 12 processed data of different water conditions showed that the standard error of the model were between 0.22 mm and 0.33 mm,and the relative error ranged from 10.2%to 17.9%.In general,the factor model of tomato transpiration process had relative high accuracy,and it could reflect tomato daily transpiration well.
分 类 号:S161.4[农业科学—农业气象学] S275[农业科学—农业基础科学]
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