Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1097/SS.0b013e318221f132 |
Coupled Liquid Water, Water Vapor, and Heat Transport Simulations in an Unsaturated Zone of a Sandy Loam Field | |
Deb, Sanjit K.; Shukla, Manoj K.; Sharma, Parmodh; Mexal, John G. | |
通讯作者 | Deb, Sanjit K. |
来源期刊 | SOIL SCIENCE
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ISSN | 0038-075X |
出版年 | 2011 |
卷号 | 176期号:8页码:387-398 |
英文摘要 | Information on the coupled liquid water, water vapor, and heat transport under arable field conditions is still limited, particularly for unsaturated soils of semi-arid and arid regions such as New Mexico. HYDRUS-1D model was applied to evaluate various transport mechanisms associated with temporal variations in water content and soil temperature in the unsaturated zone of a sandy loam furrow-irrigated field located at Leyendecker Plant Science Research Center, Las Cruces, New Mexico. The model was calibrated using measured soil water content and soil temperature at 5-, 10-, 20-, and 50-cm depths during a 19-day period (day of the year [DOY] 85 to DOY 103, 2009) and validated for a 31-day period (DOY 104 to DOY 134, 2009). Measured and optimized soil hydraulic and thermal properties and hourly meteorological data were used in model simulations. HYDRUS-1D simulated water contents and soil temperatures correlated well with the measured data at each depth. The total liquid water flux, composed of isothermal and thermal liquid water flux, dominated the soil water movement during early periods after irrigation, whereas the contribution of total water vapor flux, composed of primarily thermal and much smaller isothermal water vapor flux, increased with increasing soil drying. During the soil drying process, the total liquid flux within 15-cm depth eventually changed to water vapor flux near the surface. The upward total liquid and vapor fluxes decreased from 5 cm, indicating that vapor flux was much higher in the layer near the soil surface. The total vapor flux in this unsaturated soil layer was approximately 10.4% of the total liquid and vapor fluxes during the simulation period. |
英文关键词 | Unsaturated zone water content heat transport liquid water and water vapor fluxes HYDRUS-1D model |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000293445600001 |
WOS关键词 | FURROW-IRRIGATED SOIL ; PARTIAL SURFACE MULCH ; POROUS-MEDIA ; THEORETICAL DEVELOPMENT ; HYDRAULIC CONDUCTIVITY ; 2-DIMENSIONAL MODEL ; SOLUTE TRANSPORT ; SEMIARID REGIONS ; NUMERICAL-MODEL ; DESERT SOILS |
WOS类目 | Soil Science |
WOS研究方向 | Agriculture |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/170585 |
作者单位 | New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA |
推荐引用方式 GB/T 7714 | Deb, Sanjit K.,Shukla, Manoj K.,Sharma, Parmodh,et al. Coupled Liquid Water, Water Vapor, and Heat Transport Simulations in an Unsaturated Zone of a Sandy Loam Field[J]. New Mexico State University,2011,176(8):387-398. |
APA | Deb, Sanjit K.,Shukla, Manoj K.,Sharma, Parmodh,&Mexal, John G..(2011).Coupled Liquid Water, Water Vapor, and Heat Transport Simulations in an Unsaturated Zone of a Sandy Loam Field.SOIL SCIENCE,176(8),387-398. |
MLA | Deb, Sanjit K.,et al."Coupled Liquid Water, Water Vapor, and Heat Transport Simulations in an Unsaturated Zone of a Sandy Loam Field".SOIL SCIENCE 176.8(2011):387-398. |
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