Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island

Abstract Background Phosphorus (P) is the limiting nutrient in many mature tropical forests. The ecological significance of declining P stocks as soils age is exacerbated by much of the remaining P being progressively sequestered. However, the details of how and where P is sequestered during the age...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Chih-Yu Chiu, Ian Baillie, Shih-Hao Jien, Liam Hallett, Stephen Hallett
Formato: article
Lenguaje:EN
Publicado: SpringerOpen 2021
Materias:
Acceso en línea:https://doaj.org/article/04bac7d8620d4c37b270e51b30df2a96
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:04bac7d8620d4c37b270e51b30df2a96
record_format dspace
spelling oai:doaj.org-article:04bac7d8620d4c37b270e51b30df2a962021-12-05T12:23:20ZSequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island10.1186/s40529-021-00326-51999-3110https://doaj.org/article/04bac7d8620d4c37b270e51b30df2a962021-12-01T00:00:00Zhttps://doi.org/10.1186/s40529-021-00326-5https://doaj.org/toc/1999-3110Abstract Background Phosphorus (P) is the limiting nutrient in many mature tropical forests. The ecological significance of declining P stocks as soils age is exacerbated by much of the remaining P being progressively sequestered. However, the details of how and where P is sequestered during the ageing in tropical forest soils remains unclear. Results We examined the relationships between various forms of the Fe and Al sesquioxides and the Hedley fractions of P in soils of an incipient ferralitic chronosequence on an altitudinal series of gently sloping benches on Green Island, off the southeastern coast of Taiwan. These soils contain limited amounts of easily exchangeable P. Of the sesquioxide variables, only Fe and Al crystallinities increased significantly with bench altitude/soil age, indicating that the ferralisation trend is weak. The bulk of the soil P was in the NaOH and residual extractable fractions, and of low lability. The P fractions that correlated best with the sesquioxides were the organic components of the NaHCO3 and NaOH extracts. Conclusions The amorphous sesquioxides, Feo and Alo, were the forms that correlated best with the P fractions. A substantial proportion of the labile P appears to be organic and to be associated with Alo in organic-aluminium complexes. The progression of P sequestration appears to be slightly slower than the chemical and mineralogical indicators of ferralisation.Chih-Yu ChiuIan BaillieShih-Hao JienLiam HallettStephen HallettSpringerOpenarticleSoil PHedley fractionsSesquioxidesChronosequenceTaiwanBotanyQK1-989ENBotanical Studies, Vol 62, Iss 1, Pp 1-13 (2021)
institution DOAJ
collection DOAJ
language EN
topic Soil P
Hedley fractions
Sesquioxides
Chronosequence
Taiwan
Botany
QK1-989
spellingShingle Soil P
Hedley fractions
Sesquioxides
Chronosequence
Taiwan
Botany
QK1-989
Chih-Yu Chiu
Ian Baillie
Shih-Hao Jien
Liam Hallett
Stephen Hallett
Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
description Abstract Background Phosphorus (P) is the limiting nutrient in many mature tropical forests. The ecological significance of declining P stocks as soils age is exacerbated by much of the remaining P being progressively sequestered. However, the details of how and where P is sequestered during the ageing in tropical forest soils remains unclear. Results We examined the relationships between various forms of the Fe and Al sesquioxides and the Hedley fractions of P in soils of an incipient ferralitic chronosequence on an altitudinal series of gently sloping benches on Green Island, off the southeastern coast of Taiwan. These soils contain limited amounts of easily exchangeable P. Of the sesquioxide variables, only Fe and Al crystallinities increased significantly with bench altitude/soil age, indicating that the ferralisation trend is weak. The bulk of the soil P was in the NaOH and residual extractable fractions, and of low lability. The P fractions that correlated best with the sesquioxides were the organic components of the NaHCO3 and NaOH extracts. Conclusions The amorphous sesquioxides, Feo and Alo, were the forms that correlated best with the P fractions. A substantial proportion of the labile P appears to be organic and to be associated with Alo in organic-aluminium complexes. The progression of P sequestration appears to be slightly slower than the chemical and mineralogical indicators of ferralisation.
format article
author Chih-Yu Chiu
Ian Baillie
Shih-Hao Jien
Liam Hallett
Stephen Hallett
author_facet Chih-Yu Chiu
Ian Baillie
Shih-Hao Jien
Liam Hallett
Stephen Hallett
author_sort Chih-Yu Chiu
title Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
title_short Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
title_full Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
title_fullStr Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
title_full_unstemmed Sequestration of P fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
title_sort sequestration of p fractions in the soils of an incipient ferralisation chronosequence on a humid tropical volcanic island
publisher SpringerOpen
publishDate 2021
url https://doaj.org/article/04bac7d8620d4c37b270e51b30df2a96
work_keys_str_mv AT chihyuchiu sequestrationofpfractionsinthesoilsofanincipientferralisationchronosequenceonahumidtropicalvolcanicisland
AT ianbaillie sequestrationofpfractionsinthesoilsofanincipientferralisationchronosequenceonahumidtropicalvolcanicisland
AT shihhaojien sequestrationofpfractionsinthesoilsofanincipientferralisationchronosequenceonahumidtropicalvolcanicisland
AT liamhallett sequestrationofpfractionsinthesoilsofanincipientferralisationchronosequenceonahumidtropicalvolcanicisland
AT stephenhallett sequestrationofpfractionsinthesoilsofanincipientferralisationchronosequenceonahumidtropicalvolcanicisland
_version_ 1718371938802335744