Biogeochemical cycles of soil phosphorus in southern Alpine spodosols

Beck, Michel A.; Elsenbeer, Helmut

doi:10.1016/s0016-7061(99)00026-9

Cited by 22 publications

(21 citation statements)

References 16 publications

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“…In addition, vertical patterns in P concentrations in Podzols in the Swiss Alps observed by Beck and Elsenbeer (1999) are consistent with the present study, such that the proportion of P Resin 'P NaHCO 3 i decreased with soil depth, the proportion of P NaOHi increased with depth, and the ratio of inorganic to organically bound P increased with depth. While there is clearly more organic P in the upper soil horizons, it is unclear whether organic P is currently accumulating in upper soil horizons and (0) 95 (0) whether this is contributing to lower surface water TP.…”

Section: Patterns In Stream Total Phosphorussupporting

confidence: 92%

“…Soil Chemistry at HP3A, HP3 and PC1-08 Concentrations of different P fractions liberated using the Hedley fractionation in the present study were generally similar to or lower than concentrations reported in other studies, which also used the Hedley fractionation procedure on Podzols (Sanborn 1987;Beck and Elsenbeer 1999;Cassagne et al 2000). In addition, vertical patterns in P concentrations in Podzols in the Swiss Alps observed by Beck and Elsenbeer (1999) are consistent with the present study, such that the proportion of P Resin 'P NaHCO 3 i decreased with soil depth, the proportion of P NaOHi increased with depth, and the ratio of inorganic to organically bound P increased with depth.…”

Section: Patterns In Stream Total Phosphorussupporting

confidence: 85%

“…These authors also report similar increases in apatite with depth in Podzols at the HBEF (Nezat et al 2004(Nezat et al , 2007. Studies of other Podzols have found that P HCl increases with soil depth by at least a multiple of four between the surface A-horizon and the B-horizon (Sanborn 1987;Beck and Elsenbeer 1999;Cassagne et al 2000). Lower levels of apatite near the surface of Podzols have been attributed to weathering by the acids responsible for podzolization (Nezat et al 2004).…”

Section: Patterns In Stream Total Phosphorusmentioning

confidence: 99%

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Phosphorus forms and response to changes in pH in acid-sensitive soils on the Precambrian Shield

2015

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Baker, S. R., Watmough, S. A. and Eimers, M. C. 2015. Phosphorus forms and response to changes in pH in acid-sensitive soils on the Precambrian Shield. Can. J. Soil Sci. 95: 95Á108. Soil acidification may explain declines in total phosphorus (TP) levels that have been observed in surface waters in central Ontario, Canada, but much of the research on phosphorus (P) mobility in pH manipulated soils has been performed at high P concentrations (i.e., !500 mM). This study investigated P fractionation in acidic (pH 54.6) soils in south-central Ontario and relationships between soil pH and P sorption at relatively low P concentrations to test whether long-term declines in soil pH could have increased soil P sorption. Soils from three forested catchments that vary naturally in soil pH and outlet stream [TP] (0.1Á0.4 mM in 2008) had very similar soil P concentrations and distributions (Hedley fractionation). Only hydrochloric-acid extractable P (i.e., apatite) differed amongst catchments and was greatest at the catchment with the highest stream [TP]. The fraction of P present as labile/ soluble P did not decline with pH as expected and experiments indicated that P sorption at P concentrations between 4.52 and 452.1 mM was insensitive to manipulated solution pH. Soils were, however, able to sorb!90% of P added in sorption experiments at [P] 5452.1 mM. These results suggest that acidification-induced P sorption in upland soils has not contributed to observed decreases in surface water TP concentrations.Key words: Phosphorus, acidification (soil), Hedley fractionation, sorption, Podzols, Ontario (central) Baker, S. R., Watmough, S. A. et Eimers, M. C. 2015. Types de phosphore et re´action de cet e´le´ment aux variations du pH dans les sols du bouclier pre´cambrien sensibles a`l'acidification. Can. J. Soil Sci. 95: 95Á108. L'acidification du sol pourrait expliquer la concentration de phosphore total (PT) plus faible observe´e dans les eaux superficielles du centre de l'Ontario, mais une bonne partie des recherches sur la mobilite´du phosphore (P) dans les sols dont le pH avait e´te´modifie´ont e´teé ffectue´es a`une concentration de P e´leve´e (a`savoir, supe´rieure a`500 mM). La pre´sente e´tude portait sur le fractionnement du P dans les sols acides (pH 54,6) du centre-sud de l'Ontario et sur les liens existant entre le pH du sol et la sorption du P aux concentrations de P relativement faibles. Elle devait e´tablir si l'acidification a`long terme du sol pouvait avoir accru la sorption du P dans le sol. Trois bassins hydrographiques forestiers dont le pH et la de´charge variaient naturellement [PT] (0,1Á0,4 mM en 2008) pre´sentaient une concentration et une distribution tre`s semblables du P dans leur sol (me´thode de fractionnement de Hedley). Seule la concentration de P extractible a`l'acide chlorhydrique (a`savoir, l'apatite) diffe´rait d'un bassin a`l'autre et atteignait un maximum dans le bassin a`la de´charge la plus importante [PT]. La fraction du P correspondant au P labile/soluble ne diminue pas avec le pH comme ...

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Section: Patterns In Stream Total Phosphorussupporting

confidence: 92%

Section: Patterns In Stream Total Phosphorussupporting

confidence: 85%

Section: Patterns In Stream Total Phosphorusmentioning

confidence: 99%

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Phosphorus forms and response to changes in pH in acid-sensitive soils on the Precambrian Shield

2015

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“…Due to the high P fixation capacity of these soils, it is important to study the soil P transformation during soil development to assess temporal P distribution and dynamics. Possible changes in soil P forms in the course of pedogenesis have been predicted by some scientists (Lekwa and Whiteside 1986;Crews et aI, 1995;Beck and Elsenbeer, 1999). Much work to investigate P forms present in soils of Oban Hills have not been done except the "Land Evaluation and Agricultural Recommendations" carried out by Holland et al (1989) for Cross River National Park, Oban Division.…”

Section: Introductionmentioning

confidence: 99%

“…Much work to investigate P forms present in soils of Oban Hills have not been done except the "Land Evaluation and Agricultural Recommendations" carried out by Holland et al (1989) for Cross River National Park, Oban Division. Phosphorus sequential fractionation methods have been considered as a useful tool in providing information regarding the link between biogeochemical cycle and forms of soil P. Although a relative increase in organic P pools with increased weathering sequences has been observed, such a relationship has not been observed with labile soil P forms (Beck and Elsenbeer, 1999). In many Hills derived soils, fixation of P by interaction with Fe and Al oxides has been a major factor governing P availability to plants (Olander and Vitousek, 2005).…”

Section: Introductionmentioning

confidence: 99%

Phosphorus forms in soils of Oban Hills, Akamkpa, Cross River State, Nigeria

Ubi¹,

Ubi²,

Ibor³

et al. 2015

Global Journal of Agricultural Sciences

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Oban Hills is located at Akamkpa in the Southern Senatorial District of Cross River, State, Nigeria. Phosphorus (P)-rich soil from the Hills is expected to have an effect on retention and distribution in the highly acidic soils surrounding the area inundated for several years. Phosphorus forms in the soils of the Hills varied with the year of deposition with the highest fraction being Ca-P. The low soil pH in the Oban Hills soils suggests that Ca-P may exist in a partially dissolved form and will be the primary source of P for vegetations around the area. The cation exchange capacity and pH of surface material from the Hills suggest a dominance of primary minerals. Based on the amount of P available it seems that the Hills soils play a role in the overall P availability to the surrounding vegetation. A significant (P

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Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems

Wang

Yan

2017

Ecology and Evolution

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Soil nutrients strongly influence biomass allocation. However, few studies have examined patterns induced by soil C:N:P stoichiometry in alpine and arid ecosystems. Samples were collected from 44 sites with similar elevation along the 220‐km transect at spatial intervals of 5 km along the northern Tibetan Plateau. Aboveground biomass (AGB) levels were measured by cutting a sward in each plot. Belowground biomass (BGB) levels were collected from soil pits in a block of 1 m × 1 m in actual root depth. We observed significant decreases in AGB and BGB levels but increases in the BGB:AGB ratio with increases in latitude. Although soil is characterized by structural complexity and spatial heterogeneity, we observed remarkably consistent C:N:P ratios within the cryic aridisols. We observed significant nonlinear relationships between the soil N:P and BGB:AGB ratios. The critical N:P ratio in soils was measured at approximately 2.0, above which the probability of BGB:AGB response to nutrient availability is small. These findings serve as interesting contributions to the global data pool on arid plant stoichiometry, given the previously limited knowledge regarding high‐altitude regions.

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Biogeochemical cycles of soil phosphorus in southern Alpine spodosols

Cited by 22 publications

References 16 publications

Phosphorus forms and response to changes in pH in acid-sensitive soils on the Precambrian Shield

Phosphorus forms and response to changes in pH in acid-sensitive soils on the Precambrian Shield

Phosphorus forms in soils of Oban Hills, Akamkpa, Cross River State, Nigeria

Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems

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