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在分析河南省不同经纬度的9个县市(安阳、三门峡、郑州、卢氏、西华、南阳、驻马店、信阳和固始)1961～2002年的气象数据的基础上,对参考作物腾发量旬值的变化特征进行分析,并用时间序列法建立了相应的随机模拟模型。结果表明:各地区ET0的变化呈非增加趋势,周期项可用6阶傅里叶基数很好地描述,随机项可建立AR或者ARMA模型进行描述。本研究为河南省的各个地区的农田灌溉工作提供科学的依据。
Abstract：Based on the analysis on the meteorological data from 1961～2002 of 9 cities(Anyang;Sanmenxia;Zhengzhou;Lushi;Xihua;Nanyang;Zhumadian;Xinyang and Gushi) located at various longitudes and latitudes in Henan Province,the variation features of the ten days-values of the reference crop evapotranspiration are analyzed herein,and then the relevant stochastic simulation model is established with the time series analysis method.The result shows that the variation of ET0 in all the regions concerned presents an unincreased tendency;of which the periodic items can be expressed with Fourier series,while the stochastic items can be described by establishing the AR or ARMA models as well.The study can provide a scientific basis for the farmland irrigation of all the regions in Henan Province.
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基本信息:
DOI：10.13928/j.cnki.wrahe.2010.10.023
中图分类号:S161.4
引用信息:
[1]王声锋,张亮,徐建新,等.河南省参考作物腾发量的随机模拟模型[J].水利水电技术,2010,41(10):65-69.DOI:10.13928/j.cnki.wrahe.2010.10.023.
基金信息:
农业部作物需水与调控重点开放实验室基金(CWRR200908);; 重大水专项(008ZX07209-002)资助;; 华北水利水电学院高层次人才科研启动项目(200918)