DOI: 10.5194/hess-23-3155-2019
论文题名: A salinity module for SWAT to simulate salt ion fate and transport at the watershed scale
作者: Bailey R.T. ; Tavakoli-Kivi S. ; Wei X.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2019
卷: 23, 期: 7 起始页码: 3155
结束页码: 3174
语种: 英语
Scopus关键词: Aquifers
; Groundwater resources
; Ions
; Rivers
; Runoff
; Soil moisture
; Solvents
; Water quality
; Best management practices
; Equilibrium chemistry
; Fate and transport
; Ion concentrations
; Modelling codes
; Salt transport
; Surface runoffs
; Watershed scale
; Watersheds
; environmental fate
; groundwater resource
; hydrogeochemistry
; ion
; rhizosphere
; runoff
; soil and water assessment tool
; water quality
; watershed
; Arkansas Valley
; Colorado
; United States
英文摘要: Salinity is one of the most common water quality threats in river basins and irrigated regions worldwide. However, no available numerical models simulate all major processes affecting salt ion fate and transport at the watershed scale. This study presents a new salinity module for the SWAT model that simulates the fate and transport of eight major salt ions (SO2-4, Ca2+, Mg2+, Na+, K+, Cl-, CO2-3, HCO-3) in a watershed system. The module accounts for salt transport in surface runoff, soil percolation, lateral flow, groundwater, and streams, and equilibrium chemistry reactions in soil layers and the aquifer. The module consists of several new subroutines that are imbedded within the SWAT modelling code and one input file containing soil salinity and aquifer salinity data for the watershed. The model is applied to a 732 km2 salinity-impaired irrigated region within the Arkansas River Valley in southeastern Colorado and tested against root zone soil salinity, groundwater salt ion concentration, groundwater salt loadings to the river network, and in-stream salt ion concentration. The model can be a useful tool in simulating baseline salinity transport and investigating salinity best management practices in watersheds of varying spatial scales. © 2019 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162927
Appears in Collections: 气候变化与战略
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作者单位: Bailey, R.T., Department of Civil and Environmental Engineering, Colorado State University, 1372 Campus Delivery, Fort Collins, CO 80523-1372, United States; Tavakoli-Kivi, S., Department of Civil and Environmental Engineering, Colorado State University, 1372 Campus Delivery, Fort Collins, CO 80523-1372, United States; Wei, X., Department of Civil and Environmental Engineering, Colorado State University, 1372 Campus Delivery, Fort Collins, CO 80523-1372, United States
Recommended Citation:
Bailey R.T.,Tavakoli-Kivi S.,Wei X.. A salinity module for SWAT to simulate salt ion fate and transport at the watershed scale[J]. Hydrology and Earth System Sciences,2019-01-01,23(7)