Podzol formation in sandy soils of Finland

Mokma, D. L.; Yli‐Halla, Markku; Lindqvist, Kristian

doi:10.1016/j.geoderma.2003.09.008

Cited by 75 publications

(58 citation statements)

References 19 publications

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“…In this chronosequence, juvenile Spodosols are found within 1500Á1700 yr of soil development, while well-developed Spodosols with widespread ortstein cementation appear after 2400Á3400 yr. Mokma et al (2004) found that Spodosols formed on a forested frigid Finnish chronosequence in 1520 yr (colour criteria) to 4780 yr (soil chemical criteria), which is in line with the results from this study, despite the differences in vegetation and climate. A very humid chronosequence in British Columbia contained 350-yr-old podzols (Singleton and Lavkulich 1987), while Spodosols on lake terraces in Michigan, USA, formed in 6000Á11000 yr (Barrett and Schaetzl 1993).…”

Section: Podzolic Horizon Developmentsupporting

confidence: 91%

“…The maximal extractable iron and aluminium concentrations from this study are comparable with very young (B550 yr), but well-developed Podzols in British Columbia (Singleton and Lavkulich 1987) and younger (B2000 yr) Finnish Spodosols. However, the maximal concentrations of extractable iron and aluminium are two to three times higher in the older parts (8300Á11300 yr old) of the same Finnish chronosequence (Mokma et al 2004) and up to five times higher in weathered Swiss Podzols (Egli et al 2004). These differences can be explained by a parent material poor in iron-bearing primary minerals, given that the extractable iron concentration levels are low and the decreasing trends in iron and aluminium stocks.…”

Section: Osl Age (Years)mentioning

confidence: 94%

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Soil development rates from an optically stimulated luminescence-dated beach ridge sequence in Northern Jutland, Denmark

Nielsen¹,

Elberling²,

Pejrup³

2010

Can. J. Soil. Sci.

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M. 2010. Soil development rates from an optically stimulated luminescence-dated beach ridge sequence in Northern Jutland, Denmark. Can. J. Soil Sci. 90: 295Á307. Rates of podzolic soil development in sandy, temperate soils were quantified based on 14 soil pedons with five substrata from a beach ridge chronosequence near Jerup, Northern Denmark (578N). Soil pH, organic carbon (C) as well as extractable iron (Fe) and aluminium (Al) were measured. The age of each pedon and soil stratum was measured by optically stimulated luminescence (OSL) dating and used to estimate soil development rates. Soils were divided into five groups from Typic Haplorthods and Entic Alorthods with a mean OSL age of 29659294 yr to Typic Quartzipsamments with a mean OSL age of 22911 yr. Acidification rates during the first 200 yr were Â1.9 pH units per 100 yr in the A horizons and C-sequestration rates wereÂ25 g C m (2 yr(1 (excluding litter accumulation). After Â1500 yr, the mineral soil C stocks stabilised around 13.092.0 kg C m (2 . Translocation rates of Al into B horizons were Â0.3 kg Al m (2 per 1000 yr, while translocation rates for Fe were scattered. Our study illustrates the potential of OSL dating in chronosequence studies to quantify soil development rates.Key words: Soil development rates, chronosequence, OSL-dating, C-sequestration rates and translocation rates Nielsen, A. H., Elberling, B. et Pejrup, M. 2010. Taux de de´veloppement du sol dans une se´quence de ride de plage date´e par luminescence stimule´e optiquement dans le nord du Jutland, au Danemark. Can. J. Soil Sci. 90: 295Á307. Les auteurs ont quantifie´le taux de de´veloppement des podzols dans un sol tempe´re´sablonneux a`partir de 14 pe´dons incluant 5 sousstrates issues d'une chronose´quence pre`s de Jerup, dans le nord du Danemark (578N). Ils ont mesure´le pH du sol, la concentration de carbone organique (C) ainsi que la proportion de fer (Fe) et d'aluminium (Al) extractible. L'aˆge de chaque pe´don et strate a e´te´e´tabli par luminescence stimule´e optiquement (LSO) ce qui a permis d'estimer le taux de de´veloppement du sol. Les sols ont e´te´re´partis en cinq groupes, de l'haplorthod typique a`l'alorthod entique, dont la LSO moyenne est de 2 9659294 ans, aux quartzipsamments typiques, dont la LSO moyenne se chiffre a`22911 ans. Le taux d'acidification au cours des 200 premie`res anne´es e´tait deÂ1,9 unite´pH par sie`cle pour les horizons A, tandis que le taux de se´questration du C s'e´tablissait a`Â25 g par m 2 et par anne´e (sans la couverture de´tritique). Apre`s Â1500 ans, la re´serve de C du sol se stabilise autour de 13,092,0 kg par m 2 . La translocation de l'Al dans les horizons B se situe a`Â0,3 kg par m 2 par 1 000 ans alors que celle du Fe varie. L'e´tude re´ve`le le potentiel de la me´thode de datation par LSO dans l'e´tude des chronose´quences pour mesurer le taux de de´veloppement du sol.

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Section: Podzolic Horizon Developmentsupporting

confidence: 91%

Section: Osl Age (Years)mentioning

confidence: 94%

Soil development rates from an optically stimulated luminescence-dated beach ridge sequence in Northern Jutland, Denmark

Nielsen¹,

Elberling²,

Pejrup³

2010

Can. J. Soil. Sci.

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“…The transition between the spodic and the overlying horizon ranged from flat to undulating and abrupt to clear, suggesting variations in the soil water flow (Mokma et al, 2004). The transition of profile P7 to the E horizon for Bhs was wavy and abrupt, which is probably due to the incipient pedogenesis, in other words, the time of formation of this soil was insufficient for the homogenization of the morphological properties.…”

Section: Morphological Propertiesmentioning

confidence: 97%

Spodosols pedogenesis under barreiras formation and sandbank environments in the south of Bahia

Oliveira¹,

Ker²,

Silva³

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYMorphologically differentiated Spodosols usually occur in the Coastal Plain of the South of Bahia and North of Espírito Santo. They are found in profiles known as "muçungas", i.e. sandy soils that accumulate water. In these areas, two kinds of Spodosols, different from those in the Restinga area, can be found: Spodosols with E albic horizon (white muçunungas) and without this horizon (black muçunungas). Eight soil profiles with spodic characteristics were collected and described in order to evaluate differences in the formation process of Barreiras and Restinga Spodosols in the South of Bahia. The soil profiles were also characterized chemically, physically and mineralogically. Additionally, texture and chemical analysis, Fe and Al extraction by sodium dithionite-citrate-bicarbonate (DBC), acid ammonium oxalate and sodium pyrophosphate, ammonium oxalate extract optic density (DOox), sulphuric acid attack, and X ray difractometry of the clay fraction were performed. In the Spodosols of the Barreiras area, fragipan was found the spodic layers. Cemented B spodic horizon were observed in the white muçunungas, and granular structure and dark color from the surface in the black muçunungas. There was no fragipan or hard spodic horizon in the Restinga Spodosol. This soil is acid, dystrophic and alic, with sandy texture and high clay percentages in the spodic horizons. The CEC, based on H + Al, is predominantly represented by the organic matter. The most representative components of the mineral phase of the clay fraction are kaolinite and possibly vermiculite traces with interlayered hydroxy.

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“…From late October to April precipitation usually falls as snow and the depth of the snow cover may reach one meter. According to the USDA soil taxonomy, the most common soil type in the Hyytiälä area is Typic Haplocryod (Mokma et al 2004).…”

Section: Site Descriptionmentioning

confidence: 99%

Coarse root architecture of three boreal tree species growing in mixed stands

Kalliokoski¹,

Nygren²,

Sievänen³

2008

Silva Fenn.

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Root system architecture determines many of the vital functions of a tree, e.g. stability of anchorage and resource uptake. The shoot:root ratio is determined through the allocation of resources. Studies on below-ground architectural elements in boreal mixed forests are relatively scarce despite the fact that knowledge on below-ground interactions and allocation changes in relation to stand developmental stage and soil fertility is needed both in ecological and silvicultural research. In this study, sixty tree root systems of three different tree species, Betula pendula, Picea abies and Pinus sylvestris, were excavated in five mixed forest stands in order to quantify differences between the species and sites in terms of rooting behaviour. Root architecture differed greatly between the species, implying different solutions for the functions of root systems. Half of the P. sylvestris had developed a taproot as a response to anchorage needs, while P. abies correspondingly had pronounced secondary growth of proximal roots. Betula pendula had the most extensive root system, illustrating the greater demand of deciduous trees for water. Betula pendula was also the most sensitive to soil fertility: it favoured exploration on the poorest site, as illustrated by the high total root length, whereas on the most fertile site its strategy was to efficiently exploit soil resources through increased branching intensity. The results obtained in this study provide basic knowledge on the architectural characteristics of boreal tree root systems for use by forestry professionals and modellers.

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Podzol formation in sandy soils of Finland

Cited by 75 publications

References 19 publications

Soil development rates from an optically stimulated luminescence-dated beach ridge sequence in Northern Jutland, Denmark

Soil development rates from an optically stimulated luminescence-dated beach ridge sequence in Northern Jutland, Denmark

Spodosols pedogenesis under barreiras formation and sandbank environments in the south of Bahia

Coarse root architecture of three boreal tree species growing in mixed stands

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