| 锡林郭勒草原饲草料作物需水量计算方法比较及相关性分析 |
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| 引用本文： | 郑和祥,郭克贞,史海滨,杨茂功.锡林郭勒草原饲草料作物需水量计算方法比较及相关性分析[J].干旱地区农业研究,2010,28(6):51-57. |
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| 作者姓名： | 郑和祥 郭克贞 史海滨 杨茂功 |
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| 作者单位： | 水利部牧区水利科学研究所,内蒙古 呼和浩特 010020;内蒙古农业大学水利与土木建筑工程学院,内蒙古 呼和浩特 010018;鄂尔多斯市水利工程局,内蒙古 鄂尔多斯 017000 |
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| 基金项目： | 中国水利水电科学研究院科研专项 |
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| 摘 要： | 根据2004~2005年锡林郭勒典型草原区节水灌溉基地的试验资料和气象资料,通过水量平衡法直接计算作物需水量及根据作物系数Kc和Penman-Monteith公式、Penman修正式、Blaney-Criddle公式、Hargreaves公式、Priestley-Taylor公式、Markkink公式计算参考作物蒸发蒸腾量等间接求解作物需水量。以逐旬需水量的结果进行了相关分析,对以上各种方法计算苜蓿、披碱草和青贮玉米需水量的结果进行了适用性评价;以PM方法的计算结果对常用的6种计算饲草料作物需水量方法进行了评价,根据建立的回归方程实现了PM方法与其它6种方法的相互转换,并用2006年的实测资料对回归方程进行了检验,精度较高。
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| 关 键 词： | 需水量 饲草料作物 水量平衡法 Penman-Monteith 公式 Penman 修正式 |
Comparison of calculating methods of forage crop water requirement and correlation analysis in the grassland of Xilinguole |
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| ZHENG Hexiang,GUO Kezhen,SHI Haibin,YANG Maogong.Comparison of calculating methods of forage crop water requirement and correlation analysis in the grassland of Xilinguole[J].Agricultural Research in the Arid Areas,2010,28(6):51-57. |
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| Authors: | ZHENG Hexiang GUO Kezhen SHI Haibin YANG Maogong |
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| Abstract: | According to the observation data and weather data in typical grassland in Xilinguole of Inner Mongolia
from 2004~2005, crop water requirement was calculated directly by water balance method. Also, crop water require-
ment was calculated indirectly by crop coefficient Kc and Penman- Monteith equation, Modified Penman, Blaney-Criddle, Hargreaves, Priestley-Taylor and Markkink. Applying several methods to calculate crop water requirement, the results of
every ten days were evaluated by correlation analysis, the results of six kinds method of forage crop water requirement were evaluated by Penman-Monteith method and mutual conversion was carried out by Penman-Monteith method and other six methods according to the regression equation, and the accuracy of the results of regression equation was proved high with the data measured in 2006. |
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| Keywords: | crop water requirement forage crop water balance method Penman-Monteith equation Mdified Pen-man equation |
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