Stable carbon isotopes of carbonate pendants from Chernozemic soils of Saskatchewan, Canada

Wang, Dunling; Anderson, Daniel W.

doi:10.1016/s0016-7061(98)00011-1

Cited by 23 publications

(24 citation statements)

References 27 publications

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“…The δ 13 C values of organic C in Dark Brown and Black Chernozomic soils are -24.8‰ and -25.3‰, which are similar to the values of -24.5‰ for Dark Brown and -25.5‰ for Black soils reported by Wang and Anderson (1998b), and Anderson (1995), but more negative than the values of -23.2‰ for Dark Brown and -21.8‰ for Brown soils reported by Anderson and Paul (1984). The δ 13 C values of organic C from Ah horizons indicate that the soil organic matter was derived from a vegetation association similar to the current cover.…”

Section: Organic Carbon Storagesupporting

confidence: 84%

Organic carbon storage and stable isotope composition of soils along a grassland to forest environmental gradient in Saskatchewan

Landi¹,

Anderson²,

Mermut³

2003

Can. J. Soil. Sci.

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. 2003. Organic carbon storage and stable isotope composition of soils along a grassland to forest environmental gradient in Saskatchewan. Can. J. Soil Sci. 83: 405-414. Limited information is available about soil organic carbon accumulation rates and stable isotope composition in the boreal region of the Canadian prairies. The objectives of the study were to document soil development, measure carbon storage and accumulation rates, and determine the 13 C/ 12 C ratio of organic matter in native prairie soils in the major soil-climatic zones of Saskatchewan. The mean thickness of the Ah horizon increases from 5 cm in the Brown Chernozems to 14 cm in Black Chernozems, and this horizon is absent in Gray Luvisols. The thickness and degree of development of B horizons increase from Brown to Gray soils. Total organic C storage to 1.2 m depth in Brown, Dark Brown, Black Chernozems, and Gray Luvisols is 9. 08, 11.72, 14.88, 9.63 kg C m -2 , respectively. The long-term mean annual accumulation rates of organic C for Brown, Dark Brown, Black, and Gray soils are 0.57, 0.90, 1.18, and 0.84 g m -2 yr -1 , respectively. For a Rego Black Chernozem the rate is 1.83 g m -2 yr -1 . All these values are higher than those reported for temperate grasslands in the United States of America. The δ 13 C values of organic C (an average of all profiles in each soil zone to 1.2-m depth) range from -22.9 ‰ for Dry Brown soils, -24.3‰ for Brown soils, -24.8‰ for Dark Brown soils, -25.3‰ for Black soils, and -26.8‰ for Gray soils. The relative contribution of C4 plants to soil organic C decreases from the warm semiarid grassland to the moist Boreal region, where C4 plants have not influenced organic C at all. Considering the net primary production (NPP) estimated for the soil zones, average aboveground carbon sequestration is estimated to be about 0.46% of NPP. These data provides a realistic assessment of C balances in native prairie soils of Saskatchewan. 13 C/ 12 C de la matière organique dans le sol des prairies naturelles des principales zones pédologiques et climatiques de la Saskatchewan. L'épaisseur moyenne de l'horizon Ah passe de 5 cm dans les tchernozioms bruns à 14 cm dans les tchernozioms noirs, mais cet horizon manque dans les luvisols gris. L'épaisseur et le développement des horizons B vont en s'accroissant lorsqu'on passe des sols bruns aux sols gris. La quantité totale de C organique stockée à 1,2 m de profondeur dans les tchernozioms bruns, brun foncé et noirs et dans les luvisols gris s'établit respectivement à 9,08, 11,72, 14,88 et 9,63 kg par m 2 . Le taux d'accumulation moyen annuel à long terme du C organique se chiffre à 0,57, 0,90, 1,18 et 0,84 g par m 2 dans les sols bruns, brun foncé, noirs et gris, respectivement. Ce taux s'élève à 1,83 g par m 2 pour les tchernozioms noirs Rego. Toutes ces valeurs dépassent celles des prairies des zones tempérées aux États-Unis. La valeur δ 13 C du C organique (moyenne de tous les profils à 1,2 m de profondeur) s'établit à -22,9 % pour les sols bruns arides, -24,3 % pour les sol...

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Section: Organic Carbon Storagesupporting

confidence: 84%

Organic carbon storage and stable isotope composition of soils along a grassland to forest environmental gradient in Saskatchewan

Landi¹,

Anderson²,

Mermut³

2003

Can. J. Soil. Sci.

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“…The δ 13 C and δ 18 O values of carbonates separated from chernozems or saltaffected soils (Table 7) were in, or close to, the range of recent (modern) soil carbonates (Cerling 1984). The latter range includes carbonate pedofeatures from Canadian (Wang and Anderson 1998) and Russian (Mikhailova and Post 2006) chernozems, from Natrargids in California (Amundson and Lund 1987), and from three profiles of chernozem from Hatvan-József major, Hungary (Bajnóczi 2007). Thus they may represent pedogenic carbonate accumulations.…”

Section: Stable Isotope Compositionmentioning

confidence: 83%

The mineralogical composition of calcium and calcium-magnesium carbonate pedofeatures of calcareous soils in the European prairie ecodivision in Hungary

Szendrei¹,

Kovács-Pálffy²,

Földvári³

et al. 2012

Central European Geology

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There is little data on the mineralogy of carbonate pedofeatures in the calcareous soils in Hungary which belong to the European prairie ecodivision. The aim of the present study is to enrich these data.The mineralogical composition of the carbonate pedofeatures from characteristic profiles of the calcareous soils in Hungary was studied by X-ray diffractometry, thermal analysis, SEM combined with microanalysis, and stable isotope determination.Regarding carbonate minerals only aragonite, calcite (+magnesian calcite) and dolomite (+proto -dolomite) were identified in carbonate grains, skeletons and pedofeatures.The values relating, respectively, to stable isotope compositions (C 13 , O 18 ) of carbonates in chernozems and in salt-affected soils were in the same range as those for recent soils (latter data reported earlier). There were no considerable differences between the values for the carbonate nodules and tubules from the same horizons, nor were there significant variations between the values of the same pedofeatures from different horizons (BC-C) of the same profile. Thus it can be assumed that there were no considerable changes in conditions of formation.Tendencies were recognized in the changes of (i) carbonate mineral associations, (ii) the MgCO 3 content of calcites, (iii) the corrected decomposition temperatures, and (iv) the activation energies of carbonate thermal decompositions among the various substance-regimes of soils.Differences were found in substance-regimes types of soils rather than in soil types.

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“…A δ 13 C value of -26.0‰ for soil organic matter was determined for similar soils adjacent to the study area (Wang and Anderson 1998).…”

Section: Methodsmentioning

confidence: 99%

“…More recent studies have shown that fractionation can result in a 13.5 to 16.5‰ higher δ 13 C value for pedogenic carbonate relative to soil organic matter in the temperature range of 0 to 25°C (Cerling and Quade 1993). The isotopic methods show promise as a means to quantify pedogenic carbonates in soils of Western Canada (Wang and Anderson 1998).…”

mentioning

confidence: 99%

Evidence for solum recarbonation following forest invasion of a grassland soil

Fuller¹,

Wang²,

Anderson³

1999

Can. J. Soil. Sci.

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. 1999. Evidence for solum recarbonation following forest invasion of a grassland soil. Can. J. Soil Sci. 79: 443-448. Calcareous organic-matter-rich Black Chernozemic soils often persist under poplar forests in Saskatchewan, not acquiring the Ae horizons and related properties more characteristic of Gray Luvisol soils. These are Rego Black Chernozems, locally termed "Wooded Calcareous" because of the occurrence of a dark, calcareous horizon (AC) at depths of 10 to 30 cm. We hypothesize that dark, calcareous horizons are former Bm horizons that have been recarbonated because of intense biocycling of Ca by aspen (Populus tremuloides). The comparatively small amounts of carbonate occur mainly in the fine silt and clay fractions, and are dominantly calcite, indicating secondary origin, in comparison to the carbonate minerals of the Ck horizons where both calcite and dolomite occur, the latter more common in coarse fractions. The δ 13 C values of the carbonate minerals indicate that virtually all the carbonate in fine fractions of the upper horizons of the Wooded Calcareous soil is pedogenic. The dominance of pedogenic carbonate in the Ahk and AC horizons of the Wooded Calcareous soil is consistent with a secondary enrichment, a probable result of increased biocycling of Ca where aspen grows on sites with large amounts of soluble Ca in the subsoil. High concentrations of soluble Ca 2+ and SO 4 2-in the LFH of the Wooded Calcareous are consistent with increasing biocycling of these ions, from a gypsum-rich subsoil. [443][444][445][446][447][448]. Les sols noirs, calcaires, riches en matière organique persistent souvent sous forêt de peupliers en Saskatchewan (Canada) et n'aquièrent pas les horizons Ae et les propriétés correspondantes plus typiques des luvisols gris. Ce sont des sols noirs Rego, appelés ici "sols calcaires boisés" à cause de la présence d'un horizon calcaire foncé (AC) à la profondeur de 10 à 30 cm. Notre hypothèse est que cet horizon calcaire et un ancien horizon BM qui a été recarbonaté à cause des intenses biotransformations du Ca par le peuplier faux-tremble (Populus tremuloides). Les relativement petites quantités de carbonate que l'on retrouve surtout dans la fraction limon et la fraction argile consistent essentiellement en calcite, signe d'une origine secondaire, par comparaison avec les carbonates minéraux associés aux horizons Ck qui comprennent à la fois le calcite et la dolomite, cette dernière étant plus fréquente dans les fractions grossières. Les valeurs δ 13 C des minéraux carbonatés montrent que tous les carbonates trouvés dans les fractions fines des horizons supérieurs des sols calcaires boisés sont d'origine pédogéné-tique. La prédominance de carbonate pédogénétique dans les horizons Ahk et AC des sols calcaires boisés s'accorde avec l'hypothèse d'un enrichissement secondaire, résultat probable d'une transformation biologique intense de Ca, là où le tremble pousse sur des emplacements à sous-sol riche en Ca soluble. Les fortes concentrations de Ca 2+ et de SO 4 2-dans l'horizon L...

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Stable carbon isotopes of carbonate pendants from Chernozemic soils of Saskatchewan, Canada

Cited by 23 publications

References 27 publications

Organic carbon storage and stable isotope composition of soils along a grassland to forest environmental gradient in Saskatchewan

Organic carbon storage and stable isotope composition of soils along a grassland to forest environmental gradient in Saskatchewan

The mineralogical composition of calcium and calcium-magnesium carbonate pedofeatures of calcareous soils in the European prairie ecodivision in Hungary

Evidence for solum recarbonation following forest invasion of a grassland soil

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