Xinjiang Agricultural Sciences ›› 2021, Vol. 58 ›› Issue (9): 1704-1711.DOI: 10.6048/j.issn.1001-4330.2021.09.017

• Horticultural Special Local Products·Microbes·Animal Husbandry Veterinarian·Agricultural Eeconomy • Previous Articles     Next Articles

Study on Significant Meteorological Factors of Evapotranspiration of Jujube Orchard under Drip Irrigation

LI Xu, YUE Chunfang, ZHANG Mengli   

  1. College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2020-06-10 Online:2021-09-20 Published:2021-09-29
  • Correspondence author: YUE Chunfang(1972-), female, associate professor, doctor, mainly engaged in water resource management research, (E-mail)mycf12@sina.com
  • Supported by:
    Supported by Research and Innovation Team of Jujube Water Saving and Quality Control Technology and Intelligent Decision-Making System in Arid Area of Education Department of Xinjiang Uygur Autonomous Region (XJEDU2017T004)

滴灌条件下枣园蒸散量的显著气象因子分析

李徐, 岳春芳, 张梦丽   

  1. 新疆农业大学水利与土木工程学院,乌鲁木齐 830052
  • 通讯作者: 岳春芳(1972-),女,陕西人,教授,博士,博士生导师,研究方向为水资源管理,(E-mail)mycf12@sina.com
  • 作者简介:李徐(1993-),女,重庆人,硕士研究生,研究方向为水利工程管理,(E-mail)1182855315@qq.com
  • 基金资助:
    新疆维吾尔自治区教育厅“干旱区枣树节水调质技术及智能决策系统研发创新团队”(XJEDU2017T004)

Abstract: 【Objective】 To study the correlation between evapotranspiration (ET0) of different reference crops and significant meteorological factors, and the contribution rate of each significant meteorological factor to the actual evapotranspiration (ETc) of jujube orchard under drip irrigation. 【Methods】 Based on the drip irrigation experiments of jujube trees in Aksu area, penman-Monteith (PM), Hargreaves Samani (HS) and Priestley-Taylo (PT) models were chosen to analyze the significant meteorological factors of different ET0 and the contribution rate of each significant meteorological factor to ETc in jujube orchard. 【Results】 Mean relative humidity (RH) was negatively correlated with ET0, while solar radiation (Rn), zenithal radiation (Ra), maximum temperature (Tmax), minimum temperature (Tmin), average temperature (T) and wind speed (U) were positively correlated with ET0. The significant meteorological factors contributed to ETc of each model were PM-Rn (62.6%), U (19.9%), T (11.8%) and RH (5.7%).HS-Tmax (55.1%), Tmin (30.1%), Ra (11.6%) and T (3.2%), PT-Rn (84.1%), T (12%), and Tmin (3.9%). 【Conclusion】 Tmax and Rn contributed the most to ETc in drip irrigation jujube orchard.

Key words: reference crop evapotranspiration; significant meteorological factor; drip irrigation jujube orchard; actual evapotranspiration; contribution rate

摘要: 【目的】研究不同参考作物蒸散量(ET0)与显著气象因子的相关性,分析各显著气象因子对滴灌枣园实际蒸散量(ETc)的贡献率。【方法】在阿克苏地区枣树滴灌试验,选取Penman-Monteith(PM)、Hargreaves-Samani(HS)、Priestley-Taylo(PT)模型,采用多元线性回归分析不同ET0的显著气象因子,以及各显著气象因子对枣园ETc的贡献率。【结果】平均相对湿度(RH)与ET0呈负相关,太阳辐射(Rn)、天顶辐射(Ra)、最高温度(Tmax)、最低温度(Tmin)、平均温度(T)、风速(U)与ET0呈正相关;各模型的显著气象因子对ETc贡献率为:PM-Rn(62.6%)、U(19.9%)、T(11.8%)和RH(5.7%);HS-Tmax(55.1%)、Tmin(30.1%)、Ra(11.6%)和T(3.2%);PT-Rn(84.1%)、T(12%)和Tmin(3.9%)。【结论】TmaxRn对滴灌枣园ETc贡献率最大。

关键词: 参考作物蒸散量, 显著气象因子, 滴灌枣园, 实际蒸散量, 贡献率

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