| 微喷带不同结构参数的出流特性研究 |
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| 引用本文： | 张明智,路振广,尹卿芳,李元,邱新强,杨浩晨,张玉顺,尹玉清. 微喷带不同结构参数的出流特性研究[J]. 中国农学通报, 2021, 37(17): 112-119. DOI: 10.11924/j.issn.1000-6850.casb2020-0075 |
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| 作者姓名： | 张明智 路振广 尹卿芳 李元 邱新强 杨浩晨 张玉顺 尹玉清 |
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| 作者单位： | 1.河南省水利科学研究院,郑州 450000;2.河南省节水灌溉工程技术研究中心,郑州 450000;3.河南省灌溉试验中心站,郑州 450000;4.北京京水建设集团有限公司,北京 100038;5.陕西师范大学西北国土资源中心,西安 710048 |
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| 基金项目： | 国家自然科学基金青年科学基金项目“土壤气体调控对土壤有机碳周转的影响及其驱动机制”(41807041);河南省水利科技攻关计划项目“井灌区农业灌溉用水限额研究及应用”(GG201931);“河南省主要蔬菜需水量特征及其作物系数分析”(GG202043);广东省自然科学基金“土壤气体成分对土壤有机碳组分的影响及其驱动机制”(2018A0303130149);西安市科技计划项目“加气灌溉加速土壤养分循环机理研究及其技术开发与示范”(20193052YF040NS040);广州市科技计划项目“南亚热带森林土壤有机碳周转过程中土壤气体的调控作用及驱动机制”(20181002SF0530) |
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| 摘 要： | 微喷带作为一种高效节水灌溉技术,在冬小麦、夏玉米已广泛应用,为探明影响微喷带单组流量的主要结构参数.本试验采用完全随机试验探究微喷带下单组微孔不同微孔数量(X1,1、2、3、5孔)、微孔夹角(X2,0、30、60、90°)与微孔间距(X3,0.2、0.4、0.8、1.2 cm)对微喷带单组流量(Q)的影响.微孔数量对单...
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| 关 键 词： | 微喷带 水量分布 单组流量 多元线性回归分析 |
| 收稿时间： | 2020-05-08 |
Study on the Flow Characteristics of Micro-sprinkler Hose with Different Structural Parameters |
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| Zhang Mingzhi,Lu Zhenguang,Yin Qingfang,Li Yuan,Qiu Xinqiang,Yang Haochen,Zhang Yushun,Yin Yuqing. Study on the Flow Characteristics of Micro-sprinkler Hose with Different Structural Parameters[J]. Chinese Agricultural Science Bulletin, 2021, 37(17): 112-119. DOI: 10.11924/j.issn.1000-6850.casb2020-0075 |
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| Authors: | Zhang Mingzhi Lu Zhenguang Yin Qingfang Li Yuan Qiu Xinqiang Yang Haochen Zhang Yushun Yin Yuqing |
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| Affiliation: | 1.Henan Provincial Water Conservancy Research Institute, Zhengzhou 450000;2.Center of Efficient Irrigation Engineering and Technology Research of Henan Province, Zhengzhou 450000;3.Central Irrigation Experimental Station of Henan, Zhengzhou 450000;4.Jingshui Construction Group, Beijing 100038;5.Shaanxi Normal University Northwest Land and Resources Research Center, Xi'an 710048 |
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| Abstract: | Micro-sprinkler hose, as a high-efficiency and water-saving irrigation technology, has been widely used in winter wheat and summer maize production, this paper aims to find out the main structural parameters that affect the single group flow of micro-sprinkler hose. A completely randomized experiment was conducted to study the effects of different number of micropores (X1, 1, 2, 3, 5), angle for micropores (X2, 0, 30, 60, 90o) and spacing between of micropores (X3, 0.2, 0.4, 0.8, 1.2cm) on the flow (Q) of the micro-sprinkler hose. The results showed that the number of micropores played a leading role in influencing the single group flow, followed by the angle of micropores, and the spacing between of micropores had the smallest influence. When the number of micropores was increased from 1 to 5 micropores, the peak value of wetting area, wetting rate, flow and irrigation intensity were increased by 89.11%, 13.73%, 339.38% and 25.06%, respectively. With the spacing increase between the micropores and angle for micropores, the wetting area and single group flow increased at first and then decreased, the wetting rate showed a decreasing trend, and the peak irrigation intensity did not change significantly. The multiple linear regression equation was Q=22071.74 X1+11247.09 X2-7.34 X3-34430.54. The model can explain more than 80.00% of the single group flow, and can be used to predict the single group flow. This study can provide theoretical reference for the parameter design of micro-sprinkler hose. |
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| Keywords: | micro-sprinkler hose water distribution single group flow multiple linear regression analysis |
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