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Dieffenbach, Antje; Matzner, Egbert

doi:10.1023/a:1004755404412

Cited by 56 publications

(11 citation statements)

References 33 publications

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“…In addition, the accumulation of nutrients in the rhizosphere solution has already been observed in other forest sites under Douglas-fir [24] [45] and Norway spruce [20]. However, a depletion of cations (such as K, Mg and Ca) in the rhizosphere solutions was also observed during tree growth [21] [22] [46]. These authors suggest that nutrient uptake by plants can lead to a decrease of nutrients in the rhizosphere.…”

Section: Rhizosphere Effect On Major Element Availabilitymentioning

confidence: 79%

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (Picea abies Karst) and Beech (Fagus sylvatica) in an Acidic Forest Soil

Calvaruso¹,

Collignon²,

Kies³

et al. 2014

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In low-nutrient ecosystems such as forests developed on acidic soil, the main limiting factor for plant growth is the availability of soil nutrients. The aim of this study was to investigate in a temperate forest: 1) the influence of the rhizosphere processes on the availability of nutrients and trace elements during one year period and 2) the seasonal evolution of this rhizosphere effect. Bulk soil and rhizosphere were collected in organo-mineral and mineral horizons of an acidic soil during autumn, winter, and spring under Norway spruce (Picea abies Karst) and beech (Fagus sylvatica). Soil solutions were extracted by soil centrifugation. Rhizosphere solutions were enriched in K, and in Ca, Mg, and Na (principally in spring) compared to those of the bulk soil. Our study reveals seasonal variations of the rhizosphere effect for Ca, Mg, and Na under both species, i.e., higher enrichment of the rhizosphere solution in spring as compared with that in autumn and winter. An enrichment of the rhizosphere solutions was also observed for trace elements regardless of the season under both species in the mineral horizon, only. In contrast, seasonal variations of the rhizosphere effect for the trace elements were observed in the solutions of the organo-* Corresponding author. C. Calvaruso et al. 324 mineral horizon under beech, i.e., enrichment in autumn and depletion in winter. This study demonstrates that rhizosphere biological activities significantly increase nutrient bioavailability during the growth period. These complex interactions between roots, microbial communities and soils are a key-process that supports tree nutrition in nutrient-poor forest soils. This research also reveals that rhizosphere processes a) occur throughout the year, even in winter, and b) influence differently the dynamics of nutrients and trace elements in the root vicinity of the organo-mineral horizon.

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Section: Rhizosphere Effect On Major Element Availabilitymentioning

confidence: 79%

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (Picea abies Karst) and Beech (Fagus sylvatica) in an Acidic Forest Soil

Calvaruso¹,

Collignon²,

Kies³

et al. 2014

OJSS

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“…The most common type consists of glass-or plexiglass plates pressed onto a soil profile and can be combined with sampling and observation methods similar to microcosms of the "flat box" type (Dieffenbach and Matzner 2000).…”

Section: Field Systemsmentioning

confidence: 99%

Sampling, defining, characterising and modeling the rhizosphere—the soil science tool box

et al. 2008

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“…Data on the solid-phase of the rhizosphere of forest soils reveal that Al and Zn fractions, whether extracted with water, salts or acids or determined by mX-ray fluorescence, were generally higher in the rhizosphere than in the bulk soil. [18][19][20][21][22] Depletion of total dissolved Al was, however, reported in the rhizosphere of Norway and red spruces. 18,23 In comparison, few data are available on the speciation of dissolved Al and Zn in the rhizosphere of forest soils.…”

Section: Environmental Impactmentioning

confidence: 99%

“…[18][19][20][21][22] Depletion of total dissolved Al was, however, reported in the rhizosphere of Norway and red spruces. 18,23 In comparison, few data are available on the speciation of dissolved Al and Zn in the rhizosphere of forest soils. For example, the free Al ion (Al 3+ ), often viewed as the more reactive Al species, was higher in the ectomycorrhizosphere of Norway spruce 18 as well as in the rhizosphere of Douglas fir 22 and oak seedlings 24 compared to their companion bulk soils.…”

Section: Environmental Impactmentioning

confidence: 99%

“…18,23 In comparison, few data are available on the speciation of dissolved Al and Zn in the rhizosphere of forest soils. For example, the free Al ion (Al 3+ ), often viewed as the more reactive Al species, was higher in the ectomycorrhizosphere of Norway spruce 18 as well as in the rhizosphere of Douglas fir 22 and oak seedlings 24 compared to their companion bulk soils. This Al 3+ trend was associated to the acidification gradient existing from the bulk to the rhizosphere soil.…”

Section: Environmental Impactmentioning

confidence: 99%

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The speciation of water-soluble Al and Zn in the rhizosphere of forest soils

et al. 2010

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This study focuses on the relationships of dissolved Al and Zn speciation with microbial and chemical soil properties in the bulk and rhizosphere of forest soils. The soil components were sampled under Populus tremuloides Michx. at six sites located close to industrial facilities. Total water-soluble (Al(WS), Zn(WS)) and reactive (Al(R), Zn(R)) Al and Zn concentrations measured in soil water extracts, speciation data modeled by WHAM 6, chemical properties (pH, DOC, major cations and anions) and microbial properties (microbial biomass and enzyme activities) were measured on all soils. Enrichment in Al(R) and Zn(R) was observed in the rhizosphere compared to bulk soils. In a given soil material, the speciation of Al and Zn varied according to solution pH and Al-organic as well as Zn-organic complexes or Zn(2+) were generally the dominant species. The factors controlling the Al(WS), Zn(WS), Al(R) and Zn(R) concentrations differed between soil components, shifting from strictly chemical in the bulk (78%) to interactions among microbial and chemical variables in the rhizosphere (87%). Results further indicate that organic matter and pH were significantly linked to these response variables in the rhizosphere. Involvement of rhizospheric microorganisms occurred via pH changes induced by either the microbial assimilation of nitrogen or through the release of metals during the mineralization of roots. Our results therefore suggest that microbial activity is an important component of the biogeochemistry of Al and Zn in the rhizosphere. The study further provides key information to improve the assessment of ecological risk associated to Al and Zn in forest soils.

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Cited by 56 publications

References 33 publications

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (<i>Picea abies Karst</i>) and Beech (<i>Fagus sylvatica</i>) in an Acidic Forest Soil

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (<i>Picea abies Karst</i>) and Beech (<i>Fagus sylvatica</i>) in an Acidic Forest Soil

Sampling, defining, characterising and modeling the rhizosphere—the soil science tool box

The speciation of water-soluble Al and Zn in the rhizosphere of forest soils

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Untitled

Cited by 56 publications

References 33 publications

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (&lt;i&gt;Picea abies Karst&lt;/i&gt;) and Beech (&lt;i&gt;Fagus sylvatica&lt;/i&gt;) in an Acidic Forest Soil

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (&lt;i&gt;Picea abies Karst&lt;/i&gt;) and Beech (&lt;i&gt;Fagus sylvatica&lt;/i&gt;) in an Acidic Forest Soil

Sampling, defining, characterising and modeling the rhizosphere—the soil science tool box

The speciation of water-soluble Al and Zn in the rhizosphere of forest soils

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Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (<i>Picea abies Karst</i>) and Beech (<i>Fagus sylvatica</i>) in an Acidic Forest Soil

Seasonal Evolution of the Rhizosphere Effect on Major and Trace Elements in Soil Solutions of Norway Spruce (<i>Picea abies Karst</i>) and Beech (<i>Fagus sylvatica</i>) in an Acidic Forest Soil