2009
DOI: 10.2136/sssaj2008.0087
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Plant‐Available Calcium Varies Widely in Soils on Serpentinite Landscapes

Abstract: Serpentinitic landscapes are characterized by unusual plant species composition and vegetation patchiness. We hypothesized that soil extractable Ca content is correlated with vegetation Ca concentration and may contribute to the unusual vegetation characteristics. Eleven pedons from California were sampled within soil survey mapping polygons containing the modal location for a classic “serpentine soil.” Soil NH4OAc‐extractable Ca/Mg ratio varied from 0.1 to 1.5 and total elemental Ca/Mg ratio varied from <0… Show more

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Cited by 23 publications
(16 citation statements)
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“…Topographic differences create variation at a local scale (Rajakaruna and Bohm 1999;Alexander et al 2007). At multiple scales, differences in parent material (e.g., degree of serpentinization, mineral composition, presence of accessory minerals) influence soil chemistry, erosion resistance, and weathering rates (Alexander et al 2007;McGahan et al 2008McGahan et al , 2009). The New Idria serpentine mass (San Benito and Fresno Counties, California, USA) shows striking within-site variation, with dense chaparral giving way to barrens that are nearly devoid of vegetation except for scattered shrub and tree islands.…”
Section: Introductionmentioning
confidence: 99%
“…Topographic differences create variation at a local scale (Rajakaruna and Bohm 1999;Alexander et al 2007). At multiple scales, differences in parent material (e.g., degree of serpentinization, mineral composition, presence of accessory minerals) influence soil chemistry, erosion resistance, and weathering rates (Alexander et al 2007;McGahan et al 2008McGahan et al , 2009). The New Idria serpentine mass (San Benito and Fresno Counties, California, USA) shows striking within-site variation, with dense chaparral giving way to barrens that are nearly devoid of vegetation except for scattered shrub and tree islands.…”
Section: Introductionmentioning
confidence: 99%
“…Produktivnost peridotitsko-serpentinitskih zemljišta je uglavnom niska i u velikoj mjeri zavisi od karaktera klime i reljefa (Walker, 1954;Whittaker, 1954). Takođe, stepen serpentinizacije stijene, sadržaj pojedinih minerala i prisustvo akcesornih minerala utiče na hemizam zemljišta, rezistentnost prema eroziji i brzinu razlaganja (McGahan et al, 2008(McGahan et al, , 2009. Dakle, uticaj jednog pedogenetičkog faktora se treba posmatrati kroz prizmu uticaja ostalih faktora, a ne posebno.…”
unclassified
“…A wide variability in the concentration of Ca and Mg is typical of soils of serpentinite landscapes and depends on the type of parent material and on the presence of Ca-bearing accessory minerals (McGaham et al 2009). In the serpentinitic landscape of the "calcschists and greenstones" complex of the Susa valley, we considered both sites were ophiolites prevailed and others where micaceous and calcareous schists are more abundant, thus both Ca-poor and Ca-rich situations were expected.…”
Section: Discussionmentioning
confidence: 99%