Effect of infiltration head on soil water movement of small-diameter tube outflow furrow irrigation under mulch film
ISSN: 1708-5284
Article publication date: 30 April 2019
Issue publication date: 20 May 2019
Abstract
Purpose
The purpose of this study is to investigate the effect of different infiltration heads on soil water movement using a free infiltration test for small-diameter tube outflow furrow irrigation under mulch film.
Design/methodology/approach
The test consisted of small-diameter tube outflow furrow irrigation under mulch film with three different infiltration heads (3, 4 and 5 cm) and furrow drip irrigation under mulch film using an infiltration head of 4 cm (CK).
Findings
During irrigation, the accumulated infiltration and migration distance of the wetting front increased with time. During the same infiltration time, both the accumulated infiltration and horizontal migration distance of the wetting front increased with the larger infiltration head, whereas the vertical migration distance of the wetting front gradually decreased. With increasing distance from the furrow center, soil moisture content declined, but the uniformity of its distribution increased as the infiltration head increased.
Originality/value
This study can provide scientific basis for the use of small-diameter tube outflow furrow irrigation under mulch film.
Keywords
Acknowledgements
This study was sponsored by National Key Research and Development program of China (Number 2017YFD0300905-04), the Natural Science Foundation of Hebei (Number E2016402169, Number E2015402128), Ministry of Water Resources' special funds for scientific research on public causes of China (Number 201401030) and Youth Foundation Project of Hebei Provincial Department of Education China (Number QN2017039).
Citation
Wu, H.X., Zhang, Y., Wang, L., Chen, D. and Ma, C. (2019), "Effect of infiltration head on soil water movement of small-diameter tube outflow furrow irrigation under mulch film", World Journal of Engineering, Vol. 16 No. 2, pp. 232-237. https://doi.org/10.1108/WJE-10-2017-0332
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited