首页|云贵地区参考作物蒸散量模型适用性评价

云贵地区参考作物蒸散量模型适用性评价

扫码查看
原文链接
  • 万方数据
  • 维普
根据地貌特征及行政区划将云贵两省分为5个区域，使用当地15个气象站点共56 a的逐日气象资料计算了 18种参考作物蒸散量模型的模拟值，并以FAO56 Penman-Monteith法为标准对各模型模拟值进行了精度对比及误差成因分析。结果表明:同一模型在不同云贵分区间的模拟效果差异不大，R2的平均变异系数为8。81％，模型精度主要影响因素为辐射能量项，次要因素为空气动力项;综合法模型模拟精度最高，R2为0。81～0。99，辐射法次之，R2为0。84～0。98，温度法和水汽压法较差，R2为0。24～0。83;这4种方法中，各类型最优模型分别为FAO 24 Penman(全区整体评价指标 GPI 为 0。506，排位 1)，Inmark(GPI 为 0。142，排位 4)，Hargreaves-Samani(GPI 为-0。022，排位 12)和 Romanenko(GPI 为-0。072，排位 13)。综上，经验模型 FAO 24 Penman 和Inmark模型适用于亚热带季风气候云贵地区参考作物蒸散量的简化计算。
Applicability evaluation of reference crop evapotranspiration models in Yun-Gui region
The Yun-Gui region was divided into 5 regions based on topographic features and adminis-trative divisions.The simulated values of 18 reference crop evapotranspiration models were calculated using daily meteorological data from 15 local meteorological stations over 56 years.The accuracy of the model simulations was compared,and the causes of errors were analyzed with a benchmark calculated by the FAO56 Penman-Monteith method.The results show that the same ET0 model performs guite similar among different zones in Yun-Gui regions.The average coefficient of variation of R2 is 8.81％,and the main factor affecting model accuracy is the radiation energy term,with the secondary factor being the aerodynamic term.The comprehensive method model has the highest simulation accuracy with a R2 of 0.81-0.99,followed by the radiation method with a R2 of 0.84-0.98.The temperature method and water vapor pressure method perform relatively poorly simulation accuracy with a R2 of 0.24-0.83.Among these four methods,the optimal models for each method are FAO 24 Penman(comprehensive score GPI is 0.506,ranking 1st),Inmark(GPI is 0.142,ranking 4th),Hargreaves-Samani(GPI is-0.022,ranking 12th),and Romanenko(GPI is-0.072,ranking 13th).In conclusion,the empirical models FAO 24 Penman and Inmark models are suitable for simplified the calculation of reference crop evapotranspiration in the Yun-Gui region with a subtropical monsoon climate.

reference crop evapotranspiration(ET0)modelPenman-Monteith modelYun-Gui regioninverse distance weighting interpolationapplicability evaluation

范梦颖、吴宗俊、崔宁博、王智慧、毛华艳、胡静仪

展开 >

四川大学水利水电学院,四川成都 610041

简阳新天府农业科技有限公司,四川简阳 641400

仁寿铧锐农业投资有限责任公司,四川眉山 620500

参考作物蒸散量模型 Penman-Monteith模型 云贵地区 反距离插值 适用性评价

四川省科技计划项目/农业科技成果转化资金资助项目国家重点研发计划项目四川省科技计划项目/农业农村领域重点研发计划项目

2023NZZJ00152022YFD19008052023YFN0024

2024

10.3969/j.issn.1674-8530.23.0178

排灌机械工程学报
中国农业机械学会排灌机械分会,江苏大学流体机械工程技术研究中心

排灌机械工程学报

CSTPCD北大核心
影响因子：1.055
ISSN：1674-8530
年,卷(期)：2024.42(9)