2种滴灌带灌水均匀度对铺设长度和进水压力的响应

【目的】探究滴灌带进水压力和铺设长度对灌水均匀度的影响.【方法】以内嵌式滴灌带和薄壁式滴灌带为研究对象，比较了4种滴灌带铺设长度和4种进水压力交互作用下的灌水均匀度。【结果】内嵌式滴灌带的灌水均匀度较薄壁式滴灌带表现更好，且更适合于较长距离铺设使用。建立了2种滴灌带灌水均匀度与滴灌带铺设长度和进水压力的数学回归模型，并利用回归方程寻优发现内嵌式滴灌带滴灌均匀度达到0．95以上的优化铺设长度和进水压力的组合为：铺设长度60．02～109．94m，进水压力0．09～0．2MPa；薄壁式滴灌带的优化铺设长度和进水压力的组合为：铺设长度60．05～92．67m，进水压力0．05～0．2MPa。【结论】...

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Published inGuanʻgai paishui xuebao Vol. 37; no. 3; pp. 78 - 83
Main Author 席奇亮;葛国锋;周方;邢雪霞;赵科;卫宣志;薛刚;杨铁钊
Format Journal Article
LanguageChinese
Published Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 2018
Subjects
Drip irrigation
Inlet pressure
Irrigation
Irrigation systems
Irrigation water
Mathematical models
Regression analysis
Water pressure
滴灌;铺设长度;进水压力;滴灌均匀度
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ISSN1672-3317
DOI10.13522/j.cnki.ggps.2017.0337

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Summary:【目的】探究滴灌带进水压力和铺设长度对灌水均匀度的影响.【方法】以内嵌式滴灌带和薄壁式滴灌带为研究对象，比较了4种滴灌带铺设长度和4种进水压力交互作用下的灌水均匀度。【结果】内嵌式滴灌带的灌水均匀度较薄壁式滴灌带表现更好，且更适合于较长距离铺设使用。建立了2种滴灌带灌水均匀度与滴灌带铺设长度和进水压力的数学回归模型，并利用回归方程寻优发现内嵌式滴灌带滴灌均匀度达到0．95以上的优化铺设长度和进水压力的组合为：铺设长度60．02～109．94m，进水压力0．09～0．2MPa；薄壁式滴灌带的优化铺设长度和进水压力的组合为：铺设长度60．05～92．67m，进水压力0．05～0．2MPa。【结论】在设计田间滴灌系统时2种滴灌带的铺设长度和进水压力应在上述范围内选取。以保证灌水均匀度满足要求。
Bibliography:XI Qiliang1, GE Guofeng2, ZHOU Fang1, X1NG Xuexia1, ZHAO Ke1, WEI Xuanzhi1, XUE Gang1, YANG Tiezha1（1. College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China; 2. Luoyang Municipal Tobacco Company in Henan Province, Luoyang 471000, China）
drip irrigation; laying length; inlet pressure; irrigation uniformity
41-1337/S
[Objective] Investigate the influence of inlet pressure and laying length on the drip irrigation uniformity. [Method] The embedded drip irrigation belt and the thin-wall drip irrigation belt were used as the research objects, and the uniformity of drip irrigation under 4 kinds of inlet water pressure and 4 kinds of laying length was compared. [Result] The uniformity of drip irrigation of embedded drip irrigation was better than thin-wall drip irrigation, and the embedded drip irrigation was suitable for long distance. The mathematical models of the rela- tionship between the irrigation uniformity and the laying length and the inlet water pressure of the two types of drip i
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ISSN:1672-3317
DOI:10.13522/j.cnki.ggps.2017.0337