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Authors: M. Yu 1 ; Z. Hu 2 ; B. Liu 1 and K. Zhang 3

Affiliations: 1 College of Civil Engineering and Architecture and Zhejiang University, China ; 2 Design and Research Institute of Environmental Protection Sciences of Zhejiang Province, China ; 3 Ningbo Institute of Technology and Zhejiang University, China

Keyword(s): agricultural water management;soil water movement;drip irrigation;modelling

Abstract: Irrigated agriculture plays a crucially important role in food production worldwide. Micro-irrigation has proved an effective approach to optimise and potentially save water use in agriculture. In this study, numerical simulations using HYDRUS-2D were performed to investigate soil water dynamics after surface drip irrigation on a clay loam soil. Two emitter radii of 5 cm and 10 cm for drip irrigation were assumed. The initial soil water content was set at the point that trigged irrigation, and the soil at the water discharge surface remained saturated during irrigation. Results showed that the irrigated amount of water for the emitter radius of 10 cm was 1.07, 1.97 and 2.86 L for the irrigation durations of 1, 2 and 3 h, respectively, about 1.55, 1.66 and 1.48 times higher than those for the emitter radius of 5 cm. Correspondingly, the soil wetting depth for the emitter radius of 10 cm was 13.5, 18.4 and 21.0 cm, respectively, about 20.1%, 35.8% and 22.5% higher than those for the em itter radius of 5 cm. (More)

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Paper citation in several formats:
Yu, M.; Hu, Z.; Liu, B. and Zhang, K. (2018). Numerical Simulations of Soil Water Dynamics under Surface Drip Irrigation Using HYDRUS-2D. In Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE; ISBN 978-989-758-344-5, SciTePress, pages 260-265. DOI: 10.5220/0007559602600265

@conference{iwemse18,
author={M. Yu. and Z. Hu. and B. Liu. and K. Zhang.},
title={Numerical Simulations of Soil Water Dynamics under Surface Drip Irrigation Using HYDRUS-2D},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE},
year={2018},
pages={260-265},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007559602600265},
isbn={978-989-758-344-5},
}

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - IWEMSE
TI - Numerical Simulations of Soil Water Dynamics under Surface Drip Irrigation Using HYDRUS-2D
SN - 978-989-758-344-5
AU - Yu, M.
AU - Hu, Z.
AU - Liu, B.
AU - Zhang, K.
PY - 2018
SP - 260
EP - 265
DO - 10.5220/0007559602600265
PB - SciTePress

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