| 京郊平原参考作物腾发量及其与气象因子相关性研究 |
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| 引用本文： | 宋振伟,唐衡,孔箐锌,张海林,陈阜. 京郊平原参考作物腾发量及其与气象因子相关性研究[J]. 灌溉排水学报, 2009, 28(6) |
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| 作者姓名： | 宋振伟 唐衡 孔箐锌 张海林 陈阜 |
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| 作者单位： | 中国农业大学农学与生物技术学院/农业部作物栽培与耕作学重点实验室,北京,100094;中国农业大学农学与生物技术学院/农业部作物栽培与耕作学重点实验室,北京,100094;中国农业大学农学与生物技术学院/农业部作物栽培与耕作学重点实验室,北京,100094;中国农业大学农学与生物技术学院/农业部作物栽培与耕作学重点实验室,北京,100094;中国农业大学农学与生物技术学院/农业部作物栽培与耕作学重点实验室,北京,100094 |
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| 基金项目： | 农业部948项目(2006-G52A-Q0) |
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| 摘 要： | 利用FAO56 Penman-Montieth公式和京郊平原区代表性气象站点的长系列、短时序气象资料计算了该地区的逐日ET0,对ET0及其各分项的时间变异特征进行了分析,采用相关分析法研究了ET0与主要气象影响因子间的关系。结果表明,研究区域近50年来ET0呈不显著的增加趋势,就其各分项来说,辐射项的年际变化幅度较小,而空气动力学项的年际波动较大,且与ET0的年际波动较为符合;ET0的年内变化呈"单峰形"分布,一年内的最大值出现在6月份,为162.6 mm,最小值则出现在12月份,为32.3 mm。从ET0的分项来看,5~9月份ETrad>ETaero,而其余月份ETrad
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| 关 键 词： | 参考作物腾发量 Penman-Monteith公式 气象影响因子 相关分析 |
Crop Reference Evapotranspiration and Its Correlation with the Meteorological Factors in Beijing Plain |
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| SONG Zhen-wei,TANG Heng,KONG Qing-xin,ZHANG Hai-lin,CHEN Fu. Crop Reference Evapotranspiration and Its Correlation with the Meteorological Factors in Beijing Plain[J]. Journal of Irrigation and Drainage, 2009, 28(6) |
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| Authors: | SONG Zhen-wei TANG Heng KONG Qing-xin ZHANG Hai-lin CHEN Fu |
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| Affiliation: | SONG Zhen-wei,TANG Heng,KONG Qing-xin,ZHANG Hai-lin,CHEN Fu (College of Agronomy and Biotechnology,China Agricultural University/Key Laboratory of Crop Cultivation and Farming System,Ministry of Agriculture,Beijing 100094,China) |
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| Abstract: | Crop reference evapotranspiration(ET0) is an important factor for determining the crop water requirements.In this study,daily ET0 was calculated using FAO56 Penman-Montieth equation based on the 50 year daily meteorological data of Beijing Plain.The characteristics of the long-term annual and monthly ET0 were analyzed.By means of the dependence analysis of ET0,the coefficients of correlation of ET0.With the four main weather meteorological variables were also analyzed.According to characteristics of ET0 and... |
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| Keywords: | crop evapotranspiration Penman-Monteith equation meteorological correlation dependence analysis |
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