Arid
DOI10.1002/ird.1699
NUMERICAL SIMULATIONS AND VALIDATION OF WATER FLOW AND HEAT TRANSPORT IN A SUBSURFACE DRIP IRRIGATION SYSTEM USING HYDRUS-2D
Wang, Jiandong1,2; Gong, Shihong1,2; Xu, Di1,2; Juan, Sui1,2; Mu, Jianxin1,2
通讯作者Gong, Shihong
来源期刊IRRIGATION AND DRAINAGE
ISSN1531-0353
出版年2013
卷号62期号:1页码:97-106
英文摘要

Subsurface drip irrigation (SDI) systems are often recommended to overcome water scarcity in arid and semi-arid regions. To properly manage SDI systems, precise prediction of distribution and transport of soil water content and temperature (important soil physical factors for plant growth) around the emitters must be known. In this paper, the computer software package HYDRUS-2D was used to evaluate the distribution and transport of soil water content and temperature around an emitter in a silt loam soil. The model was validated by comparison with measured data from field experiments involving SDI with emitters installed at 25-cm soil depths. Model performance in simulating soil moisture and temperature was evaluated by comparing measured and predicted values using three parameters: model efficiency (ME), root mean square deviation (RMSE) and mean bias error (MBE). Values of ME, RMSE and MBE between measured and simulated soil moisture ranged from 0.71 to 0.84, 0.013 to 0.019 and 0.004 to 0.007 and between measured and simulated soil temperature ranged from 0.81 to 0.86, 0.97 to 1.33 and 0.13 to 0.28, respectively. Based on these values, it can be concluded that there was good correspondence between simulations and observations and the HYDRUS-2D can be commendably used to describe soil water and heat transport properties involving SDI and also for investigating and designing drip irrigation management practices. Copyright (c) 2013 John Wiley & Sons, Ltd.


英文关键词subsurface drip irrigation numerical simulation water and heat transport HYDRUS-2D validation
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000315196200011
WOS关键词TRICKLE SOURCE ; POINT SOURCES ; SOIL ; SURFACE ; INFILTRATION ; TEMPERATURE ; PERFORMANCE ; PATTERNS ; SOLUTE ; MODEL
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/177834
作者单位1.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100048, Peoples R China;
2.China Inst Water Resources & Hydropower Res, Natl Ctr Efficient Irrigat Engn & Technol Res, Beijing 100048, Peoples R China
推荐引用方式
GB/T 7714
Wang, Jiandong,Gong, Shihong,Xu, Di,et al. NUMERICAL SIMULATIONS AND VALIDATION OF WATER FLOW AND HEAT TRANSPORT IN A SUBSURFACE DRIP IRRIGATION SYSTEM USING HYDRUS-2D[J],2013,62(1):97-106.
APA Wang, Jiandong,Gong, Shihong,Xu, Di,Juan, Sui,&Mu, Jianxin.(2013).NUMERICAL SIMULATIONS AND VALIDATION OF WATER FLOW AND HEAT TRANSPORT IN A SUBSURFACE DRIP IRRIGATION SYSTEM USING HYDRUS-2D.IRRIGATION AND DRAINAGE,62(1),97-106.
MLA Wang, Jiandong,et al."NUMERICAL SIMULATIONS AND VALIDATION OF WATER FLOW AND HEAT TRANSPORT IN A SUBSURFACE DRIP IRRIGATION SYSTEM USING HYDRUS-2D".IRRIGATION AND DRAINAGE 62.1(2013):97-106.
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