miun.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
The relationship between soil solution pH and Al3+ concentrations in a range of South Island (New Zealand) soils
University of Canterbury, New Zealand.
University of Canterbury, New Zealand.
University of Canterbury, New Zealand.
University of Canterbury, New Zealand.
2000 (Engelska)Ingår i: Australian Journal of Soil Research, ISSN 0004-9573, E-ISSN 1446-568X, Vol. 38, nr 1, s. 141-153Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Concentrations of Al3+ were calculated in soil solutions from concentrations of the monomeric ‘reactive Al’ species ([Al3+] + [Al(OH)2+] + [Al(OH)2+] + [AlF2+]) obtained using a recently reported flow injection analysis (FIA) chelating resin technique. Soil solution samples came from 7 sites encompassing a range of New Zealand soils (Brown, Gley, Pallic, Podzol, and Recent Soils) and vegetation types (pasture, shrub lands, and indigenous and exotic forest). Previously published data from a further 7 sites, obtained using a rapid (7 s) FIA technique, were transformed to give compatible results. The resultant data (n = 85) covered the pH range 2.7–7.6, and showed a single curvilinear relationship for log [Al3+] v. soil solution pH, regardless of vegetation or soil type. At pH >5.6, the data had a slope of –2.98 and fell between the amorphous Al(OH)3 and gibbsite solubility lines. At pH <5.0, the data had a slope of –0.46; further, the soil solutions were under-saturated with respect to both minerals. These results are interpreted as indicating control of Al solubility by Al(OH)3(s) (at pH >5.6) and soil organic matter (at pH <5.0), respectively. This interpretation is supported by data from a pH-dependent Al–fulvic acid binding curve, for which calculated values of [Al3+] follow the same curvilinear relationship determined from the soil solution samples.

Ort, förlag, år, upplaga, sidor
2000. Vol. 38, nr 1, s. 141-153
Nyckelord [en]
flow injection analysis, solubility, speciation
Nationell ämneskategori
Miljövetenskap
Identifikatorer
URN: urn:nbn:se:miun:diva-34489DOI: 10.1071/SR98095OAI: oai:DiVA.org:miun-34489DiVA, id: diva2:1250824
Tillgänglig från: 2018-09-25 Skapad: 2018-09-25 Senast uppdaterad: 2018-09-25Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Personposter BETA

Nilsson, Nils

Sök vidare i DiVA

Av författaren/redaktören
Nilsson, Nils
I samma tidskrift
Australian Journal of Soil Research
Miljövetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 336 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf