Forms and profile distribution of soil phosphorus in alpine Inceptisols and Spodosols (Pyrenees, France)

Cassagne, Nathalie; Remaury, M.; Gauquelin, Thierry; Fabre, André

doi:10.1016/s0016-7061(99)00093-2

Cited by 59 publications

(36 citation statements)

References 29 publications

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“…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: 84%

“…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: 84%

Section: Patterns In Stream Total Phosphorusmentioning

confidence: 99%

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

2015

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“…The data of NaOH 0.5M-Po fraction did not adjust regression equations even with the significant effect of P fertilizer rates. The NaOH 0.1M-Po fraction predominates organic P fractions, in accordance with Cassagne and Remaury (2000). Before or after common bean cultivation, the Po decreased with the increase in P fertilizer rates ( Figure 2).…”

Section: Soil Organic P Fractionssupporting

confidence: 71%

Phosphorus and silicon fertilizer rates effects on dynamics of soil phosphorus fractions in oxisol under common bean cultivation

Alovisi¹,

Neto²,

Serra³

et al. 2016

Afr. J. Agric. Res.

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The purpose of this research was to evaluate the effects of P and Si fertilizer rates in dynamic of P fractions in clay soil under greenhouse. The research was carried out in a Dystroferric Red Latosol of a very loamy texture from Lavras city, Minas Gerais State, Brazil. The experimental design was entirely randomized, arranged in 4 × 3 factorial design, with four repetitions. The treatments included four inorganic fertilizer P rates (0, 110, 330 and 560 mg dm ). The preview application of Si fertilizer did not contribute to decrease P desorption. Possibly, the silicate has lower affinity with the bound sites of adsorption than phosphates. The effects of inorganic fertilizer P were higher in increasing the moderately labile and labile P inorganic fractions. Among the organic P fractions, the NaHCO 3 -Po fraction was the only one that contributes to plant nutrition. The Hedley sequential phosphorus fractionation promoted information about different pools where P was accumulated in the soil after common bean cultivation. The highest amount of P was obtained in stable P fraction, followed by moderately labile and labile P fraction. The moderately labile P fraction decreased after common bean cultivation possibly due to the time of P contact in the soil and redistribution to stable P fraction. The labile form was the lowest P pool in soil; nevertheless the increase in fertilizer P rates increases the amount of P content in labile fraction.

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“…and 1117 μg P g −1 in the Pyrenees, France (Cassagne et al, 2000), and 746 and 1009 μg P g −1 in the Minshan Mountains of southwestern China (Zhang et al, 2011). Differences in soil P concentrations between sites may be due to differences in age and physical characteristics that affect pedogenic processes and P retention (Parton et al, 2005).…”

Section: Phosphorus In High-elevation Sierra Nevada Soilsmentioning

confidence: 99%

Pools, transformations, and sources of P in high-elevation soils: Implications for nutrient transfer to Sierra Nevada lakes

2014

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In high-elevation lakes of the Sierra Nevada (California), increases in P supply have been inferred from shifts in P to N limitation. To examine factors possibly leading to changes in P supply, we measured pools and transformations in soil P, and developed a long-term mass balance to estimate the contribution of parent material weathering to soil P stocks. Common Sierra Nevada soils were found to not be P-deficient and to be retentive of P due to the influence of Fe-and Al-oxides. Total P averaged 867 μg P g −1 in the top 10 cm of soil (O and A horizons) and 597 μg P g −1 in the 10-60 cm depth (B horizons), of which 70% in A horizons and 60% in B horizons was freely exchangeable or associated with Fe and Al. Weathering of parent material explained 69% of the P found in soils and lost from the catchment since deglaciation, implying that long-term atmospheric P deposition (0.02 kg ha) represented the balance of P inputs (31%) during the past 10,000 years of soil development. During spring snowmelt~27% of the total soil P was transferred between organic and inorganic pools; average inorganic P pools decreased by 232 μg P g −1 , while organic P pools increased by 242 μg P g −1 .Microbial biomass P was highest during winter and decreased six-fold to a minimum in the fall. Interactions between hydrology and biological processes strongly influence the rate of P transfer from catchment soils to lakes.

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Forms and profile distribution of soil phosphorus in alpine Inceptisols and Spodosols (Pyrenees, France)

Cited by 59 publications

References 29 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 and silicon fertilizer rates effects on dynamics of soil phosphorus fractions in oxisol under common bean cultivation

Pools, transformations, and sources of P in high-elevation soils: Implications for nutrient transfer to Sierra Nevada lakes

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