微小区土壤侵蚀试验中田口方法代替全因子设计的可行性分析

doi:10.11975/j.issn.1002-6819.2015.13.001

ISWC OpenIR > 水保所科研产出（EI） > 2015年EI

	微小区土壤侵蚀试验中田口方法代替全因子设计的可行性分析
其他题名	Feasibility analysis of replacing full factorial design with Taguchi method in mini-plot soil erosion experiments
	张风宝 1,2; 杨明义 1,2; 李占斌 1,2,3
文章类型	article
	2015-07-01
发表期刊	Transactions of the Chinese Society of Agricultural Engineering(农业工程学报)
通讯作者邮箱	ymyzly@163.com
卷号	31 期号:13 页码:1-9
其他摘要	田口方法是一种低成本、高效率的试验设计和数据处理方法，目前在土壤侵蚀研究中应用甚少。该文通过对比全因子设计、正交设计和田口方法的微小区土壤侵蚀试验结果，分析利用田口方法研究土壤侵蚀的可行性。结果显示，田口方法试验量仅占全因子设计的 6.3%，但其确定的发生最大坡面侵蚀速率的试验条件与实测最大值的试验条件相同，预测的坡面径流速率和侵蚀速率与实测值比较吻合，预测值和实测值的 Nash-Sutcliffe 效率系数都在 0.84 以上；两种设计分析的各因子对坡面径流速率和侵蚀速率的主效应趋势一致，估算的各因子对坡面径流速率和侵蚀速率变化的贡献率比较接近。与正交设计的分析结果相比，田口方法的分析结果更接近全因子设计的分析结果，基本与全因子设计的结果相同。说明在微小区土壤侵蚀研究中田口方法可代替全因子设计，不仅能有效减少试验量，节省试验成本，提高试验效率，而且能获得比较可靠的试验结果。 ; During plot experiments with full factorial designs in order to understand the effects of factors such as soil type,slope gradient, slope length, rainfall characteristics, hydraulic factors, vegetation cover and human activities on soil erosion processes, the number of tests increases with the increasing number of factors and their levels, often leading to time, cost and labor consuming. Taguchi method has been evidenced as a simple, economical and efficient experiment design method in fields of engineering, environment and others, but not in soil erosion studies. This study investigated the feasibility of using Taguchi design method in studies on soil erosion under different conditions. To achieve this objective, a published dataset of mini-plot soil erosion by Meyer and Harmon in 1989 was used. This dataset included four factors and four levels of soil type (Brooksville, Dubbs, Atwood and Loring), slope gradient (5%, 10%, 20 and 30%), slope length (0.15, 0.3, 0.45 and 0.6 m) and rainfall intensity (13.6-14、 26.4-27、 74.3-76.3 and 112-115 mm/h). Results from Taguchi method, orthogonal design and full factorial design were compared. For comparison, the results from full factorial design were considered as measured values. Results showed that the test numbers used for Taguchi method/orthogonal design were only 6.3% of that for full factorial design, but there was no significant difference in mean of runoff and erosion rate between Taguchi method and the other methods. The maximum, minimum and variation coefficient and standard deviation for the erosion and runoff rates between the methods were slightly different. The main effect of each factor on the erosion and runoff rates obtained from Taguchi method followed the same trends with those obtained from full factorial design, but different from the orthogonal design sometimes. The three methods all could identify that rain intensity was the main contributor to slope erosion. However, the contribution rates from the three methods were different with higher value from Taguchi method than the others, probably because the Taguchi method could effectively reduce contribution of uncontrollable factors such as noise. In general, the contribution of each factor to the variation of erosion and runoff rate from Taguchi method was much closer to full factorial design method. The optimum condition obtained from Taguchi method to produce the maximum erosion was the same with that from the measured results. The determination coefficients (R2) of the predicted values by Taguchi design and the measured values were 0.993 (P < 0.001, N = 254) and 0.929 (P < 0.001, N = 254) for the runoff and erosion rates, respectively. The Nash-Sutcliffe Efficiency index between the predicted values by Taguchi design and measured values were 0.992 and 0.841 for the runoff and erosion rates, respectively. All above results indicate that the Taguchi method can replace full factorial designs in mini-plot erosion studies to produce the credible results and decrease the test numbers and the costs.
关键词	径流（runoff）土壤( Soils) 侵蚀( Erosion) 田口方法(Taguchi Method) 全因子设计(Full Factorial Design) 微小区(Mini-plot)
DOI	10.11975/j.issn.1002-6819.2015.13.001
URL	查看原文
收录类别	EI
语种	中文
资助项目	国家自然科学基金 ; 国家自然科学基金重点项目 ; 中国科学院重点部署项目
所属项目编号	41171228、 41371283 ; 41330858 ; KZZD-EW-04-03
分类号	S157
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7727
专题	水保所科研产出（EI）_2015年EI
通讯作者	杨明义
作者单位	1.西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室，杨凌 712100 2.中国科学院水利部水土保持研究所，杨凌 712100 3.西安理工大学水利水电学院，西安 710048
推荐引用方式 GB/T 7714	张风宝,杨明义,李占斌. 微小区土壤侵蚀试验中田口方法代替全因子设计的可行性分析[J]. Transactions of the Chinese Society of Agricultural Engineering(农业工程学报),2015,31(13):1-9.
APA	张风宝,杨明义,&李占斌.(2015).微小区土壤侵蚀试验中田口方法代替全因子设计的可行性分析.Transactions of the Chinese Society of Agricultural Engineering(农业工程学报),31(13),1-9.
MLA	张风宝,et al."微小区土壤侵蚀试验中田口方法代替全因子设计的可行性分析".Transactions of the Chinese Society of Agricultural Engineering(农业工程学报) 31.13(2015):1-9.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
7-----微小区土壤侵蚀试验中田口方法（1148KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载