2024-03-28T12:56:19Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00019806
2022-12-14T04:16:18Z
1169:1170
Changes in phosphorus fractions caused by increased microbial activity in forest soil in a short-term incubation study
Kunito, Takashi
Hiruta, Naomi
Miyagishi, Yasunori
Sumi, Hirotaka
Moro, Hitoshi
© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. / This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Phosphorus
acid phosphatase
nitrogen
forest soil
larch leaf litter
The effects of adding larch (Larix kaempferi) leaf litter and nitrogen (N) on microbial activity and phosphorus (P) fractions in forest soil were examined in a short-term (28-d) laboratory incubation study. The soil was analyzed using a modified Hedley sequential extraction procedure and an acid phosphatase assay. The addition of larch litter and N increased the acid phosphatase activity and decreased the labile P (H2O-P+NaHCO3-P) concentration. Compared with addition of larch litter only, addition of both inputs decreased the proportion of inorganic P (Pi) and increased that of organic P (Po) in the NaOH fraction, bound to aluminum and iron oxides. The results of nutrient (carbon, N, or P) addition indicated that acid phosphatase was synthesized to acquire P. This study suggests that, in this forest soil, P in the H2O-P+NaHCO3-P and in the NaOH-Pi fractions was available for soil microorganisms to decompose leaf litter and that increase in microbial activity eventually translated in an increase in the proportion of Po found in the NaOH fraction in this forest soil.
Article
CHEMICAL SPECIATION AND BIOAVAILABILITY. 30(1):9-13 (2018)
TAYLOR & FRANCIS LTD
2018-01-31
eng
journal article
VoR
http://hdl.handle.net/10091/00020567
https://soar-ir.repo.nii.ac.jp/records/19806
https://doi.org/10.1080/09542299.2018.1433555
10.1080/09542299.2018.1433555
0954-2299
AA1185644X
CHEMICAL SPECIATION AND BIOAVAILABILITY
30
1
9
13
https://soar-ir.repo.nii.ac.jp/record/19806/files/09542299.2018.1433555.pdf
application/pdf
1.1 MB
2018-05-01