摘要
为定量评价波涌灌间歇入渗中灌水技术参数及交互作用对间歇入渗减渗作用的影响,通过室内土柱入渗试验,进行地下水浅埋下间歇入渗试验,以累积入渗量和减渗率作为试验指标,通过两种方法(偏最小二乘法和逐步选择法)对循环率、周期供水时间以及周期数3因素进行回归分析,并建立线性回归方程,对方程及其各因素进行方差分析。采用响应优化分析法对回归模型进行指标优化。试验结果表明:所建回归方程线性相关性较好,其决定系数R2大于0.97,误差平方和SSE小于1.1,较好地反应各单因素及其交互作用下的入渗指标。与偏最小二乘法相比,逐步选择法可满足较高精度要求,当周期数为3、周期供水时间为30 min、间歇入渗循环率为1/4时,入渗量为6.29 cm,减渗率为19.15%,标准误差值均小于0.01,合意值均达0.8以上。为波涌灌灌水技术进一步研究奠定科学基础。
In order to quantitatively evaluate the influence of the irrigation technology parameters and their related interactive factors on the reduced infiltration effect of the intermittent infiltration,intermittent infiltration tests were carried out in shallow groundwater through the indoor soil infiltration tests.The accumulated infiltration amount and the reduced infiltration rate were taken as the experimental indices.At the same time,two methods(Partial Least Square method and stepwise selection method)were applied by the software of Minitab to take the regression analysis of three factors,which included the cycle rate,the cycle time of water and the number of cycles,the linear regression equation was established,and the variance analysis was conducted to the equations and the factors.The experimental results showed that the linear correlation of the regression equation was good,the coefficient of determination R 2 was greater than 0.97,and the sum of error squares SSE was less than 1.1,which reflected the infiltration index of each single factor and its interaction well.Compared with PLSR,the stepwise selection method can meet the requirements of high precision.When the number of cycles is 3,the periodic water supply time is 30 min,and the intermittent infiltration cycle rate is 1/4,the infiltration volume is 6.29 cm,the seepage reduction rate is 19.15%,the standard error values are less than 0.01,and the consensus values are above 0.8.It lays a scientific foundation for the further study of surge irrigation water technology.
作者
薛桦
张晓斌
傅渝亮
何振嘉
Xue Hua;Zhang Xiaobin;Fu Yuliang;He Zhenjia(Shanxi Water Conservancy Vocational and Technical College,Yuncheng,044000,China;Yuncheng University,Yuncheng,044000,China;School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou,450045;Shaanxi Provincial Land Engineering Construction Group Co.,Ltd.,Xi an,710075,China)
出处
《中国农机化学报》
北大核心
2023年第11期184-191,共8页
Journal of Chinese Agricultural Mechanization
基金
国家自然科学基金项目(52079105)
运城学院博士科研项目(YQ—2022005)
运城学院学科经费资助项目(2022113)
山西省运城市科技计划项目(YCKJ—2021032)
河南省重点研发与推广专项(科技攻关)(212102110031)
河南省科技计划项目(162102110130)。
关键词
波涌灌间歇入渗
入渗特性
多因素分析
偏最小二乘法
逐步选择法
intermittent surge irrigation infiltration
infiltration characteristics
multi-factor analysis
PLSR
stepwise selection method
作者简介
第一作者:薛桦,女,1976年生,山西运城人,硕士,副教授,研究方向为水利工程施工技术、节水灌溉。E-mail:403536491@qq.com;通讯作者:张晓斌,男,1977年生,山西运城人,博士,教授,研究方向为流域生态修复、环境模拟及污染控制。E-mail:sxzxb88@126.com。
