Frozen soils
; Groundwater
; Meteorology
; Rain
; Soil moisture
; Water levels
; Wetlands
; Chemical compositions
; Climate variability
; Climatic variability
; Conceptual understanding
; Environmental conditions
; High salt concentration
; Hydrological process
; Meteorological data
; Lakes
; chemical composition
; climate variation
; concentration (composition)
; drainage basin
; environmental conditions
; prairie
; rainfall
; salinization
; salt
; snowmelt
; terrain
; wetland
; Mascarene Islands
; North America
; Reunion
; Saint Denis
英文摘要:
The glaciated plains of the North American continent, also known as the "prairies", are a complex hydrological system characterized by hummocky terrain, where wetlands, containing seasonal or semi-permanent ponds, occupy the numerous topographic depressions. The prairie subsoil and many of its water bodies contain high salt concentrations, in particular sulfate salts, which are continuously cycled within the closed drainage basins. The period between 2000 and 2012 was characterized by an unusual degree of climatic variability, including severe floods and droughts, and this had a marked effect on the spatial distribution, water levels and chemical composition of wetland ponds. Understanding the geochemical and hydrological processes under changing environmental conditions is needed in order to better understand the risk and mitigate the impacts of future soil and water salinization.
School of Environment and Sustainability and the Global Institute for Water Security, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, Saskatchewan, S7N 3H5, Canada; Environment Canada, 11 Innovation Boulevard, Saskatoon, Saskatchewan, S7N 3H5, Canada; Imperial College London, Department of Civil and Environmental Engineering, London, United Kingdom
Recommended Citation:
Nachshon U,, Ireson A,, Van Der Kamp G,et al. Impacts of climate variability on wetland salinization in the North American prairies[J]. Hydrology and Earth System Sciences,2014-01-01,18(4)