干旱区生态环境知识资源中心(Arid): 双作物系数法计算华北地区桃树蒸散量的可靠性评价

Arid

	双作物系数法计算华北地区桃树蒸散量的可靠性评价
其他题名	Reliability Evaluation of Dual Crop Coefficient Approach on Evapotranspiration Calculation of Peach Tree in North China
	仝国栋; 刘洪禄; 李法虎; 杨胜利; 范海燕
来源期刊	农业机械学报
ISSN	1000-1298
出版年	2016
卷号	47 期号:6 页码:154-162
中文摘要	为评估双作物系数法计算华北地区果树蒸散量和作物系数的可靠性,采用液流法和水量平衡法在2012-2013年对桃树蒸散量和作物系数进行了大田小区试验测定。结果表明,双作物系数法计算的蒸散强度与液流法和水量平衡法测定的蒸散强度在果树生育期内均随时间呈先增大后减小的趋势,计算值与2种实测法测定结果之间均显著相关。全生育期蒸散量计算值与实测值的相对误差小于4.5%,但土壤蒸发量计算值比测定值小59.5% ~ 64.8%,而蒸腾量计算值则比测定值大25.6%~26.0%。双作物系数法计算的作物系数与液流法和水量平衡法测定的作物系数也均随生育期呈先增大后减小的趋势,3种方法获得的整个生育期平均作物系数分别为0.90、0.89和0.95。通过对均方根-实测值标准偏差比(RSR)和纳什效率系数(NES)的分析,认为双作物系数法是估算充分灌溉条件下干旱-半干旱地区桃树蒸散量和作物系数的一种有效方法。
英文摘要	In order to evaluate the reliability and applicability of dual crop coefficient approach on calculating actual evapotranspiration and crop coefficient of fruit tree in the North China Plain, the evapotranspiration and crop coefficient of peach tree were measured by sap flow and water balance methods in an orchard of Beijing, China in 2012 and 2013, and the corresponding values were also calculated by dual crop coefficient approach. Experimental results showed that daily evapotranspiration rates calculated by dual crop coefficient approach and measured by sap flow and water balance methods were increased firstly and then decreased with time during peach tree growth period, and the calculated values had significantly positive correlation with those obtained by the twp measurement methods (R~2>0.77~() and R~2>0.76~()). The relative error of total actual evapotranspiration in the whole growth period calculated by dual crop coefficient approach was less than 4.5% compared with the measured values by sap flow and water balance methods, but the calculated soil evaporation was 59.5%~64.8% smaller than that measured by micro-lysimeter, and the calculated transpiration was 25.6%~26.0% greater than that measured by sap flow method. The crop coefficients obtained by dual crop coefficient approach, sap flow and water balance methods also showed a increasing trend firstly and then they were decreased with time during the growth period of peach tree, and the average values during the whole growth period were 0.90, 0.89, and 0.95, respectively, for dual crop coefficient approach, sap flow and water balance methods. By calculation and analyses on the ratio of root mean square error to the standard deviation of measured data (RSR) and the Nash-Sutcliffe efficiency (NSE), it can be concluded that dual crop coefficient approach is an effective method to calculate actual evapotranspiration and crop coefficient of peach tree under full irrigation in arid and semi-arid areas.
中文关键词	桃树 ; 作物系数 ; 水量平衡法 ; 土壤蒸发量 ; 液流法 ; 一致性评价 ; 作物蒸腾量
英文关键词	peach tree crop coefficient water balance method soil evaporation sap flow method consistency evaluation crop transpiration
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:5731023
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234659
作者单位	仝国栋, 中国农业大学水利与土木工程学院, 北京 100083, 中国.; 李法虎, 中国农业大学水利与土木工程学院, 北京 100083, 中国.; 刘洪禄, 北京市水科学技术研究院, 北京 100044, 中国.; 杨胜利, 北京市水科学技术研究院, 北京 100044, 中国.; 范海燕, 北京市水科学技术研究院, 北京 100044, 中国.
推荐引用方式 GB/T 7714	仝国栋,刘洪禄,李法虎,等. 双作物系数法计算华北地区桃树蒸散量的可靠性评价[J]. 中国农业大学,2016,47(6):154-162.
APA	仝国栋,刘洪禄,李法虎,杨胜利,&范海燕.(2016).双作物系数法计算华北地区桃树蒸散量的可靠性评价.农业机械学报,47(6),154-162.
MLA	仝国栋,et al."双作物系数法计算华北地区桃树蒸散量的可靠性评价".农业机械学报 47.6(2016):154-162.