In:
Water Resources Research, American Geophysical Union (AGU), Vol. 26, No. 4 ( 1990-04), p. 611-622
Abstract:
At Birkenes, a small forested catchment with acidic soils in southernmost Norway, acid rain has resulted in high stream water H + , Al, and SO 4 concentrations. Recent studies have revealed the complexity of the Al chemistry in Birkenes stream water, as inorganic Al is not regulated by one single solubility control. It has been hypothesized that this is due to the dynamic nature of water flow paths and the different Al solubilities in surface soils and subsoils. In this study we tested the flow path hypothesis as well as cation solubility controls, using soil solution lysimetry, before and after a storm event, exceptionally high in sea salts. Results indicate that considerable lateral flow through the organic surface layers to the stream did occur during rainstorms on nearly water‐saturated soils. In the organic surface horizons, Al concentrations were reduced and controlled by cation exchange, whereas in the mineral B horizons, Al was more soluble and close to equilibrium with gibbsite ( p Ks = −9.0 at 10°C).
Type of Medium:
Online Resource
ISSN:
0043-1397
,
1944-7973
DOI:
10.1029/WR026i004p00611
Language:
English
Publisher:
American Geophysical Union (AGU)
Publication Date:
1990
detail.hit.zdb_id:
2029553-4
detail.hit.zdb_id:
5564-5
SSG:
13
SSG:
14
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