Distribution and cycling of sulphur in the vegetation of two forest ecosystems in an acid rain environment

Meiwes, K. J.; Khanna, P.

doi:10.1007/bf02149633

Cited by 42 publications

(8 citation statements)

References 15 publications

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“…This value is slightly less than that measured for a small bog in western Ontario (60-8 1%) which is being artificially acidified (Behr 1985Bayley & Schindler 1987) and close to the range reported for bogs throughout northeastern North America (60-90%; Urban et al 1987). Bogs are efficient sinks for SO; compared to many terrestrial systems (Likens et al 1977;Shriner & Henderson 1978;Turner et al 1980;Meiwes & Khanna Urban et al (1987) suggested that the extent of sulfate retention is hydrologically controlled. Systems that are flushed more rapidly have lower retention efficiencies.…”

Section: Concentrationssupporting

confidence: 54%

Sulfur cycling in a forested Sphagnum bog in northern Minnesota

1989

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Abstract.The mass balance and internal cycle of sulfur within a small forested, Sphagnum bog in northern Minnesota are presented here based on a 4-year record of hydrologic inputs and outputs (precipitation, throughfall, streamflow, upland runoff) and a 3-year measurement of plant growth and sulfur uptake. Concentrations and accumulation rates of inorganic and organic sulfur species were measured in porewater. The bog is a large sink for sulfur, retaining 37% of the total sulfur input. Because of the relatively large export of organic S (21% of inputs), retention efficiency for total-S (organic S + SO:; 37%) is less than that for SOT (58%). There is a dynamic cycle of oxidation and reduction within the bog. Annual oxidation and recycling of S is equal to total inputs in the center of the bog. Plants receive 47% of their uptake requirement from atmospheric deposition, 5% from retranslocation from foliage, and the remainder from sulfur remineralized from peat. Mineralization is most intense in the aerobic zone above the water table. Inorganic sulfur species comprise < 5% of the total sulfur burden within the peat.

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Section: Concentrationssupporting

confidence: 54%

Sulfur cycling in a forested Sphagnum bog in northern Minnesota

1989

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“…The contribution of S04-S to total S in litterfall (10.6 and 7%) is comparable to that found by David et al (1987) for a hardwood site; it is, however, low compared to other sites where S0 4 -S concentrations in litterfall represent 39, 74 and 70% of total S respectively Tuner et al 1980;Meiwes & Khanna 1981). Homann & Cole (1990) recently reported that Douglas-fir needle litter has an important initial soluble SO 4 concentration (36-50% of total S) whereas SO 4 represents around 10% of total S in red alder leaf litter.…”

Section: Sulfur Partition In Litterfall and Tree Componentsmentioning

confidence: 49%

“…4. Relations between organic S () and S04-S () on an areal basis and S input at Lake Laflamme Watershed (LLW), Quebec, Canada (this study); Huntington Forest (HF), New York, USA (David et al 1987); Red Alder (TR) and Douglas Fir (TD) stands at Thompson site, Washington, USA (Johnson et al 1986); Hubbard Brook Forest (HB), New Hampshire, USA (Likens et al 1977;Mitchell et al 1989); Camp Branch Watershed (CB), Tennessee, USA (Johnson et al 1986); Yellow Poplar (WBY) and Chestnut Oak (WBC) stands at Walker Branch Watershed, Tennessee, USA (Johnson et al 1986); Beech (SB) and Spruce (SS) stands at Solling, West Germany (Meiwes and Khanna 1981).…”

Section: Relationships Between Soil and Sulfur Status And So 4 Loadingmentioning

confidence: 99%

Sulfur speciation and distribution in soils and aboveground biomass of a boreal coniferous forest

Houle

Carignan

1992

Biogeochemistry

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Abstract. Major sulfur pools are quantified in soils and aboveground biomass of a coniferous boreal forest. Total ecosystem S averages 1395 kg-ha-' of which 98% is found in the soil, with 89% being in the mineral horizons. Organic S dominates in soil, tree parts (trunks, branches + foliage, roots) and litterfall, ranging from 77 to 99% of total S concentration. Carbon-bonded S, ester sulfate and S0 4 -S in soil profiles range respectively from 51-68%, 29-37% and 1-14% of total S concentrations and account respectively for 57, 33 and 10% of total S on an areal basis. Adsorbed SO 4 accounts for 82% of total SO 4 , and can be predicted from Al bound to organic matter, amorphous Al and pH (r 2 = 0.81). There is a strong relationship between % carbon and carbon-bonded S in 4 of the 5 soil horizons studied which represent over 95% of the total soil organic matter, whereas ester sulfate is related to % carbon in 3 soil horizons representing only 37% of the soil organic matter. An analysis of atmospheric S loading and S data for 10 forested sites in Europe and North America suggests that the size of the organic S pool in forested systems is independent of atmospheric loading.

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“…Nitrogen additions to forest ecosystems have been shown to increase the amount of carbon-bonded sulfur compounds, including sulfur-containing amino acids, in plant foliage (Meiwes and Khanna, 1981;Margolis and Waring, 1986).…”

Section: Resultsmentioning

confidence: 99%

The effect of nitrogen fertilization on the COS and CS2 emissions from temperature forest soils

Melillo

Steudler

1989

J Atmos Chem

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The net fluxes of carbonyl sulfide (COS) and carbon disulfide (CS2) to the atmosphere from nitrogen amended and unamended deciduous and coniferous forest soils were measured during the spring of 1986. We found that emissions of these gases from acidic forest soils were substantially increased after nitrogen fertilization. The total (COS + CS 2) emissions were increased by nearly a factor of three in the hardwood stand and were more than doubled in the pine stand. Furthermore, vegetation type appeared to have an influence on which was the dominant sulfur gas released from the forest soils. The added nitrogen caused a dramatic increase in COS emissions from the hardwood stand (a factor of three increase), while CS 2 emissions from this site were not affected. We observed the opposite response in the pine stand; that is, the nitrogen fertilization had no affect on COS emissions, but did stimulate CS 2 emissions (a factor of more than nine increase).

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Distribution and cycling of sulphur in the vegetation of two forest ecosystems in an acid rain environment

Cited by 42 publications

References 15 publications

Sulfur cycling in a forested Sphagnum bog in northern Minnesota

Sulfur cycling in a forested Sphagnum bog in northern Minnesota

Sulfur speciation and distribution in soils and aboveground biomass of a boreal coniferous forest

The effect of nitrogen fertilization on the COS and CS2 emissions from temperature forest soils

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