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Soil water movement estimated from isotope tracers

Bengtsson, Lars LU ; Saxena, R. K. and Dressie, Z. (1987) In Hydrological Sciences Journal 32(4). p.497-520
Abstract
The natural isotope oxygen-18 and artificially injected tritium are used for studying the percolation of soil water. Particle velocity, progression rate and soil moisture flux are distinguished from each other. Water particle velocities and seasonal groundwater recharge are determined in glacio-fluvial deposits and in till soils. In the glacio-fluvial deposits of the Uppsala Esker it is found that the groundwater recharge is distributed rather uniformly over the year, although high soil moisture flux near the ground surface is caused by single episodes. The travel time of a water particle from the ground surface to the groundwater level at about 4 m depth is two to three years. In the more heterogeneous moraine areas, the dispersion of the... (More)
The natural isotope oxygen-18 and artificially injected tritium are used for studying the percolation of soil water. Particle velocity, progression rate and soil moisture flux are distinguished from each other. Water particle velocities and seasonal groundwater recharge are determined in glacio-fluvial deposits and in till soils. In the glacio-fluvial deposits of the Uppsala Esker it is found that the groundwater recharge is distributed rather uniformly over the year, although high soil moisture flux near the ground surface is caused by single episodes. The travel time of a water particle from the ground surface to the groundwater level at about 4 m depth is two to three years. In the more heterogeneous moraine areas, the dispersion of the marked water is considerable. However, the origin of water recharging the groundwater can be determined. The vertical distance travelled by the fastest moving water particles in one year does not exceed 10 m. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Hydrological Sciences Journal
volume
32
issue
4
pages
497 - 520
publisher
IAHS Press
external identifiers
  • scopus:0023600570
ISSN
0262-6667
DOI
10.1080/02626668709491208
language
English
LU publication?
no
id
8d1fa557-37e4-4032-82e7-26c6ffb3fda6 (old id 2595255)
date added to LUP
2012-05-30 17:20:30
date last changed
2017-01-01 07:08:36
@article{8d1fa557-37e4-4032-82e7-26c6ffb3fda6,
  abstract     = {The natural isotope oxygen-18 and artificially injected tritium are used for studying the percolation of soil water. Particle velocity, progression rate and soil moisture flux are distinguished from each other. Water particle velocities and seasonal groundwater recharge are determined in glacio-fluvial deposits and in till soils. In the glacio-fluvial deposits of the Uppsala Esker it is found that the groundwater recharge is distributed rather uniformly over the year, although high soil moisture flux near the ground surface is caused by single episodes. The travel time of a water particle from the ground surface to the groundwater level at about 4 m depth is two to three years. In the more heterogeneous moraine areas, the dispersion of the marked water is considerable. However, the origin of water recharging the groundwater can be determined. The vertical distance travelled by the fastest moving water particles in one year does not exceed 10 m.},
  author       = {Bengtsson, Lars and Saxena, R. K. and Dressie, Z.},
  issn         = {0262-6667},
  language     = {eng},
  number       = {4},
  pages        = {497--520},
  publisher    = {IAHS Press},
  series       = {Hydrological Sciences Journal},
  title        = {Soil water movement estimated from isotope tracers},
  url          = {http://dx.doi.org/10.1080/02626668709491208},
  volume       = {32},
  year         = {1987},
}