Soil depth as a driver of microbial and carbon dynamics in a planted forest (<italic>Pinus radiata</italic>) pumice soil

Abstract δ 13 14 C) C analyses were performed to assess depth-driven changes in the stability and age of soil C. Our research identified large declines in microbial diversity and abundance with soil depth, alongside significant structural shifts in community membership. Importantly, we conservatively estimate that more than 35 % of soil C stocks are present in subsoil layers below 30 cm. Although the age of soil C steadily increased with depth, reaching a mean radiocarbon age of 1571 yr BP (years before present) in the deepest soil layers, the stability of soil C varied between different subsoil depth increments. These research findings highlight the importance of quantifying subsoil C stocks for accurate C accounting. By performing a broad range of analytical measures, this research has comprehensively characterised the abiotic and biotic properties of a subsoil environment – a frequently understudied but significant component of forest ecosystems.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Soil depth as a driver of microbial and carbon dynamics in a planted forest (Pinus radiata) pumice soil ; volume:9 ; number:1 ; year:2023 ; pages:55-70 ; extent:16
Soil ; 9, Heft 1 (2023), 55-70 (gesamt 16)

Urheber
Byers, Alexa K.
Garrett, Loretta G.
Armstrong, Charlotte
Dean, Fiona
Wakelin, Steve A.

DOI
10.5194/soil-9-55-2023
URN
urn:nbn:de:101:1-2023011905044023607454
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:27 MESZ

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Beteiligte

  • Byers, Alexa K.
  • Garrett, Loretta G.
  • Armstrong, Charlotte
  • Dean, Fiona
  • Wakelin, Steve A.

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