干旱区生态环境知识资源中心(Arid): 半干旱地区不同水文年Hargreaves和P-M公式的对比分析

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	半干旱地区不同水文年Hargreaves和P-M公式的对比分析
其他题名	Comparison and analysis of Hargreaves equation and Penman-Monteith equation during the different hydrological years in the semi-arid region
	王声锋; 段爱旺; 张展羽
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2008
卷号	24 期号:7 页码:29-33
中文摘要	该文运用P-M和Hargreaves公式,对河南新乡市4个典型水文年参考作物蒸散量进行了计算,并以P-M公式的计算结果为标准,对Hargreaves公式计算结果进行分析.研究结果表明:Hargreaves公式计算的年值偏差随降水量的增加而增大,但在各典型年的第1～12旬和31～36旬,两公式旬值计算结果没有显著差别;偏差出现在第13～30旬,各典型年Hargreaves公式的计算值均大于P-M公式的计算值.另外,该文建立了各典型年两公式在第13～30旬的回归关系,修正后的Hargreaves公式能很好的在新乡市应用,并且为其他类似的半干旱地区准确运用Hargrcaves公式计算ET_0提供参考.
英文摘要	The reference crop evapotranspiration of four typical hydrological years was calculated by Hargreaves equation and Penman-monteith equation in Xinxiang city in Henan Province. The results of Hargreaves equation were analyzed by using the results of Penman-monteith equation as standard. The results show that the error of Hargreaves equation is increased with the increase of annual precipitation. While the ET_0 values of ten day by two equations are no remarkable difference during the 1st ～12th and the 31st～36th 10-day. During the 13th～30th ten day of four typical hydrological years, the ET_0 values calculated by Hargreaves equation are greater than that calculated by Penman-Monteith equations, the regression relation between two equations was established during the 13th～30th ten day. The result shows that Hargreaves equation can be applied in Xinxiang City. The researches results provide the reference for reference crop evapotranspiration calculated by Hargreaves equation in the sililar semi-arid region.
中文关键词	Hargreaves公式 ; Penman-Monteith公式 ; 不同水文年 ; 参考作物蒸散量
英文关键词	Hargreaves equation Penman-Monteith equation different hydrological year reference crop evapotranspiration
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:3341516
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222604
作者单位	王声锋, 河海大学水利水电工程学院, 南京, 江苏 210098, 中国.; 张展羽, 河海大学水利水电工程学院, 南京, 江苏 210098, 中国.; 段爱旺, 中国农业科学院农田灌溉研究所, 新乡, 河南 453003, 中国.
推荐引用方式 GB/T 7714	王声锋,段爱旺,张展羽. 半干旱地区不同水文年Hargreaves和P-M公式的对比分析[J],2008,24(7):29-33.
APA	王声锋,段爱旺,&张展羽.(2008).半干旱地区不同水文年Hargreaves和P-M公式的对比分析.农业工程学报,24(7),29-33.
MLA	王声锋,et al."半干旱地区不同水文年Hargreaves和P-M公式的对比分析".农业工程学报 24.7(2008):29-33.