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当前位置: 首页 > 文章 > 不同气候区参考作物需水量计算方法对比研究 节水灌溉 2018 (8)
Position: Home > Articles > 不同气候区参考作物需水量计算方法对比研究 Water Saving Irrigation 2018 (8)

不同气候区参考作物需水量计算方法对比研究

作  者：
崔伟敏;宋妮;申孝军;粱悦萍;黄仲冬;宁慧峰;陈新国
关键词：
参考作物需水量;气候区;作物
摘  要：
为探索不同气候区适宜的参考作物需水量计算方法,基于全国不同气候区典型区域9个气象站多年日气象资料,分别利用8种常用计算方法计算参考作物需水量,并以Penman-Monteith公式计算结果为标准,对不同计算方法计算结果进行评价,结果表明,Hargreaves公式在各气候区的精度表现均比较理想,Mc Clound公式和Brockamp and Wenner公式在温度大陆气候区和温带季风气候区表现较为理想,根据不同气候区典型气象站60年(2013年以前)的实测气象资料,率定了不同气候区Hargreaves公式及Mc Clound公式的适宜参数,2014年实测资料验证结果表明,与PM公式计算结果相比,中国不同气候区Hargreaves公式计算结果的RMSE、PE和R2值分别为0.42~0.95 mm/d、0.81%~10.69%和0.66~0.94,在温带大陆气候区和温带季风气候区Mc Clound公式计算的RMSE、PE和R2值分别介于0.80~1.23 mm/d、1.36%~14.52%和0.60~0.87,在温带大陆气候区Brockamp and Wenner公式计算结果的PE值普遍偏高,而在温带季风区(TMZ)Brockamp and Wenner公式计算结果的RMSE、PE和R2值分别为0.95~1.29 mm/d、1.14%~7.87%和0.59~0.81.
作  者：
CUI Wei-min;SONG Ni;SHEN Xiao-jun;LIANG Yue-ping;HUANG Zhong-dong;NING Hui-feng;CHEN Xin-guo;Key Lab for Crop Water Requirement and Regulation,Ministry of Agriculture/Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences;Water Conservancy and Hydropower Survey Design Institute of Shijiazhuang;
单  位：
CUI Wei-min%SONG Ni%SHEN Xiao-jun%LIANG Yue-ping%HUANG Zhong-dong%NING Hui-feng%CHEN Xin-guo%Key Lab for Crop Water Requirement and Regulation,Ministry of Agriculture/Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences%Water Conservancy and Hydropower Survey Design Institute of Shijiazhuang
关键词：
reference crop water requirement;;climatic zone;;crop
摘  要：
In order to choose appropriate methods for the reference crop water requirements,8 models were used to calculate the reference crop water requirements based on the meteorological data of 9 stations in different climatic regions,and the calculation result of PenmanMonteith formula was used as the standard. The result shows that compared with the result of PM formula,the Hargreaves formula,the Mc Clound formula and the Brockamp-Wenner formula are appropriate calculation methods in TCZ and TMZ; the Hargreaves formula and the Romanenko formula are appropriate calculation methods in PMZ; the Hargreaves formula is an appropriate calculation method in SMZ and TRMZ. The suitable model parameters in different climate zones are obtained based on the weather data of 60 years of 9 stations in different climate zones in China. Another source of data( 2014) is used for models accuracy verification. The results shows that,compared with the PM formula,the accuracy of Hargreaves formula is better( the value of RMSE,PE and R2 is 0.42 ~ 0.95 mm/d,0.81% ~ 10.69%,and 0.66~ 0.94,respectively) in different climate zones; the accuracy of Mc Clound formula is better( the value of RMSE,PE and R2 is 0.80 ~ 1.23 mm/d,1.36% ~ 14.52% and 0.60 ~ 0.87,respectively) in TCZ and in TMZ; the accuracy of Brockamp and Wenner formula is better( the value of RMSE,PE and R2 is 0.95 ~ 1.29 mm/d,1.17% ~ 7.87% and 0.59 ~ 0.81,respectively) in TMZ.

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