Dynamics of Sulfate Retention by Acid Forest Soils in an Acidic Deposition Environment1

Khanna, P.; Prenzel, J.; Meiwes, K. J.; Ulrich, B.; Matzner, Egbert

doi:10.2136/sssaj1987.03615995005100020035x

Cited by 74 publications

(29 citation statements)

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“…Although the estuary samples fit well with the solubility of jurbanite in the whole range of pH studied, it is known that jurbanite forms at acid pH (e.g., Nordstrom, 1982). Jurbanite has been suggested to precipitate and control the Al solubility in AMD and soil leachates (pH < 4.6) in natural and laboratory conditions (Nordstrom, 1982;Nordstrom et al, 1984;Gundersen and Beier, 1987;Khanna et al, 1987;Courchesne and Hendershot, 1990;Stollenwerk, 1991;Nordstrom and Alpers, 1999;Bigham and Nordstrom, 2000;Johnson et al, 2000;Cravotta, 2008;Pu et al, 2010). Amorphous Al(OH) 3 has been reported to control the Al solubility at pH > 5 when neutralizing acid drainages (Nordstrom et al, 1984;Nordstrom and Ball, 1986;Lee et al, 2002;Cravotta, 2008;Pu et al, 2010) and in column experiments performed with acid water (Stollenwerk, 1991).…”

Section: Geochemical Modeling: Speciation-solubility and Reaction-patmentioning

confidence: 51%

Major hydrogeochemical processes in an Acid Mine Drainage affected estuary

Asta

Calleja

Pérez‐López

et al. 2015

Marine Pollution Bulletin

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Section: Geochemical Modeling: Speciation-solubility and Reaction-patmentioning

confidence: 51%

Major hydrogeochemical processes in an Acid Mine Drainage affected estuary

Asta

Calleja

Pérez‐López

et al. 2015

Marine Pollution Bulletin

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“…Table 2). This difference is mainly due to dry deposition scavenged by the spruce canopy (Khanna et al, 1987;Miller et al, 1991). In the beech forest stand, interception is also smaller since there is no canopy in winter.…”

Section: Sulphate Input To the Floormentioning

confidence: 99%

Distribution of sulphur forms in soils from beech and spruce forests of Mont Loz�re (France)

et al. 1993

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From a quantitative inventory of sulphur forms and sulphur budget, the relation between the distribution of the various sulphur forms and the sulphate fluxes in three soil profiles has been addressed. These profiles are located in two forested watersheds at Mont Loz6re. One has been sampled in a beech forest and the other two in a spruce forest and in a harvested plot of this spruce forest, respectively. The mean annual input-output budgets showed a sulphur immobilization in the soil cover of the three plots. In the preserved spruce forest plot, because of larger dry depositions, the sulphur immobilization is much greater than in other plots and occurs essentially in the B horizons. In the other two profiles, the dominant immobilization occurs in the parent material.The total sulphur content is very high in the forest floor reaching 2065 txg S g-1 in the litter of one of the soils under spruce. In the organo-mineral horizons of soils under spruce, the total sulphur content decreases with depth and ranges from 310 to 520/xg S g-I in the A horizons to 100-200/xg S g ~ in the parent material. In the profile under beech, the total sulphur content is lower except in the parent material. In all cases, the organic sulphur is the major part of sulphur often representing more than 90% of total sulphur. In organo-mineral soil horizons of the spruce forest, the part of the sulphateesters is more important than in the soil of the beech forest, probably related to the different nature of the microbial activity in the spruce forest. In contrast, the humification processes are more efficient in the soil under beech, which can be due to the greater input of organic sulphur by litterfall. It appears that the dominant organic sulphur form varies as a function of microbial ecology and sulphate flux. The maximum of the inorganic sulphate is located at the base of the B horizons in the soil of the spruce forest and in the parent material of the soil under beech. In these horizons, the high content of inorganic sulphate can be related to the higher amounts of amorphous Fe and AI phases.

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“…The precipitation and dissolution of SO 4 2-minerals do not generally dominate inorganic SO 4 2-dynamics (e.g., Johnson et al 1982;Courchesne and Hendershot 1990;Faseth et al 1991;Alewell et al 1996;Lükewille et al 1996) except for some sites in Europe with extremely high soil solution SO 4 2-and aluminum concentrations that may result in jurbanite formation (Nordstrom 1982;Khana et al 1987). For many well-studied watersheds the results suggest that the weathering of S minerals is not the major source of S (Likens et al 2002;Mitchell and Alewell 2007).…”

Section: Introductionmentioning

confidence: 96%