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Titolo:
Parent material influence on sulfate sorption in forest soils from northwestern Spain
Autore:
Arbestain, MC; Barreal, ME; Macias, F;
Indirizzi:
Univ Santiago Compostela, Fac Biol, Dept Edafol & Quim Agr, Santiago De Compostela 15706, Spain Univ Santiago Compostela Santiago De Compostela Spain 15706 15706, Spain
Titolo Testata:
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
fascicolo: 6, volume: 63, anno: 1999,
pagine: 1906 - 1914
SICI:
0361-5995(199911/12)63:6<1906:PMIOSS>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
GALICIA NW SPAIN; PODZOLIC SOILS; NORTHEASTERN JAPAN; CLAY MINERALOGY; ANDO SOILS; ADSORPTION; CHEMISTRY; CHARGE; IRON; PRECIPITATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Macias, F Univ Santiago Compostela, Fac Biol, Dept Edafol & Quim Agr, Santiago De Compostela 15706, Spain Univ Santiago Compostela Santiago De Compostela Spain 15706 in
Citazione:
M.C. Arbestain et al., "Parent material influence on sulfate sorption in forest soils from northwestern Spain", SOIL SCI SO, 63(6), 1999, pp. 1906-1914

Abstract

Sulfate sorption by forest soils decreases the potential detrimental effect of S deposition on cation leaching. Twenty-four soils from the 3416-km(2)area surrounding two lignite-fueled power-generating plants in NW Spain were studied to relate SO42- sorption to soil properties and ultimately to the parent material. The area contains a variety of parent materials, and hasa wide range of acidic soils (Haplumbrepts, Fulvudands, and Kanhaplohumults). Total annual precipitation ranges from 1100 to 1900 mm yr(-1) and mean annual temperature is 12 degrees C. Sulfate sorption was studied by adding either 0.4 or 1.6 mM SO42- solutions to soils. Sorption decreased in the following order: amphibolite > biotitic schist > granite > phyllite and was positively related to Al extractable with sodium hydroxide, oxalate, and pyrophosphate, and to Fe extractable with dithionite-citrate and oxalate, which were high in soils derived from basic materials. Organic matter apparently had counteracting effects on SO42- sorption. First, sorption was important in surface horizons with pH-NaF greater than or equal to 9.7, mainly due to the presence of Al-humus complexes, which often give these soils an andic character. Second, sorption was specially low in surface horizons of soils derived from acidic materials with pH-NaF < 8.0, which may be attributed to competition between SO42- and organic acids for sorption sites, in addition to the low content of reactive surfaces. Sorption was positively related to soil pH due to the positive relation between Fe and Al oxy-hdroxides and basic materials. These results suggest the need to take into account theinfluence of parent material on SO42- sorption in assessing the sensitivity of soils to S deposition.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 20:41:59