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	新疆旱区草地参考作物腾发量随机模拟及其应用
其他题名	Application of stochastic model to simulation of reference crop evapotranspiration in grassland of arid region
	赵旭; 李毅; 刘俊民
ISSN	0559-9350
出版年	2008
卷号	39 期号:11 页码:1267-1272,1278
中文摘要	本文根据新疆地区乌鲁木齐、吐鲁番、伊宁3个气象站40年逐日观测资料,应用FAO 1998 Penman-Monteith公式,计算乌鲁木齐站（1959～2000年）、吐鲁番站（1961～2000年）和伊宁站（1961～2000年）的历年逐日ET_0。在此基础上,对各站多年平均ET_0序列进行了随机模拟。结果表明：3个站ET_0年内变化趋势大体一致,都具有很强的季节性,总体上吐鲁番站的ET_0最高,伊宁站最低;年际变化呈现递减的趋势。通过预测值和Penman-Monteith法计算值对比,说明随机模型的预测结果良好,相对误差范围在实用范围之内,可为计算灌区作物需水量和优化灌溉制度提供一定的依据。
英文摘要	The Penman-Monteith formula was used to calculate the daily reference crop evaportranspiration ET_0 according to the daily meteorological data observed at Urumqi Station, Tulufan Station and Yining Station, located at Xinjiang Autonomous Region, in the period from 1961 to 2000. The mean annual series of ET_0 for these stations were simulated by stochastic method. The results indicate that the variation trends of ET_0 in these station in a year are almost the same and have obvious seasonal characteristics. The magnitude of ET_0 at Tulufan is the highest and that at Yiling is the lowest. Generally, the ET_0 at these stations tends to decrease year by year. It is found that the predicted ET_0 by using the stochastic model is approximately agree with that calculated from Penman-Monteith formula, the relative error of the predicted ET_0 is in the practical range. It demonstrates that the stochastic simulation model can be used to calculate the water requirement in irrigation district and provides the data for optimization of irrigation practice.
中文关键词	成分 ; 随机模型 ; 谱分析 ; Penman-Monteith法
英文关键词	ET0 reference crop evaportranspiration ET0 stochastic model spectral analysis Penman- Monteith formula
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3474741
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222756
作者单位	西北农林科技大学水利与建筑工程学院, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	赵旭,李毅,刘俊民. 新疆旱区草地参考作物腾发量随机模拟及其应用[J]. 西北农林科技大学,2008,39(11):1267-1272,1278.
APA	赵旭,李毅,&刘俊民.(2008).新疆旱区草地参考作物腾发量随机模拟及其应用.,39(11),1267-1272,1278.
MLA	赵旭,et al."新疆旱区草地参考作物腾发量随机模拟及其应用".39.11(2008):1267-1272,1278.