The Influence of Land Roughness to Irrigation Efficiency Based on SIRMOD Model of Border Irrigation of Wheat

Abstract:

Land roughness is an important parameter of border irrigation in the surface water flow movement, it affects of the water movement process and affects irrigation efficiency, so it’s necessary combined with field surface other parameters to study irrigation field roughness to the irrigation efficiency. Agreement is good between simulated by SIRMOD model and measured values​​ through field trials the measured data of water flow advance and regression process, and indicating with SIRMOD model can simulate border irrigation process. Four kinds of typical field surface roughness of irrigation simulation by SIRMOD model and analysis of the results obtained: land roughness difference of water flow advance and regression process influence significantly, the water flow advance and regression process is better with the small land roughness, and the curve of water flow advance and regression becomes uneven, so irrigation efficiency significant reduction with the field surface roughness increases.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 3640-3644
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.3640
• Online since: June 2014
• Authors: He Xiang Zheng*, Xue Song Cao, Jia Bin Wu, Jian Cheng Zhang
• Keywords: Border Irrigation, Irrigation Efficiency, Land Roughness, SIRMOD Model

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