摘要
作物需水量的多少是农业灌溉过程中决定灌溉效率和质量的关键。以Penman-Monteith方程为主要研究对象,采用2018年3月10日至4月10日的气象数据以及2018年的月均值数据将P-M修正式方程与基于茶树的蒸腾蒸发模型进行数据对比分析。结果表明,基于茶树的蒸腾蒸发模型计算出的ET0精确度更高,与实测值吻合度较好,理论上可以作为茶园灌溉的依据。
The amount of crop water requirement is the key to determine irrigation efficiency and quality in agricultural irrigation.Therefore,studying crop evapotranspiration is of great significance for water-saving irrigation.In this paper,the Penman-Monteith equation is used as the main research object.The meteorological data from March 10,2018 to April 10,2018 and the monthly average data from 2018 are used to compare the PM modified equation with the tea tree-based transpiration evaporation model.The analysis proves that the ET0 calculated based on the transpiration evaporation model of tea tree is more accurate and agrees well with the measured value,which can theoretically serve as the basis for tea garden irrigation.
作者
韩沙
马德新
HAN Sha;MA De-xin(College of Animation and Media,Qingdao Agricultural University,Qingdao 266109,Shandong,China;Computing Center,Shandong Academy of Sciences,Jinan 250101,China;School of Computer Science and Technology,Shandong University,Jinan 250101,China)
出处
《湖北农业科学》
2019年第16期121-124,138,共5页
Hubei Agricultural Sciences
基金
青岛市民生科技计划项目（18-6-1-112-nsh）
山东省高等学校科技计划项目（J17KA154）
关键词
作物需水量
灌溉
茶树
蒸发蒸腾量
crop water requirement
irrigation
tea tree
evapotranspiration
