コンテンツメニュー

Marumoto Takuya

Affiliate Master Yamaguchi University

Influence of iron and aluminium oxide on the amount of microbial biomass and decomposition of rice straw in H_2O_2-treated soil

Journal of the science of soil and manure, Japan Volume 70 Issue 2 Page 171-176
published_at 1999-04-05
2007020021.pdf
[fulltext] 2.41 MB
Title
過酸化水素処理した土壌中のバイオマス量および稲わら分解 : 微生物バイオマスにおよぼす火山灰土壌の鉄およびアルミニウム酸化物の影響(第2報)
Influence of iron and aluminium oxide on the amount of microbial biomass and decomposition of rice straw in H_2O_2-treated soil
Creators Guan Gang
Creators Marumoto Takuya
Creators Nishiyama Masaya
Creator Keywords
火山灰土壌 バイオマスC量 バイオマスN量 鉄酸化物 アルミニウム酸化物 aluminium oxide iron oxide microbial biomass-C microbial biomass-N volcanic ash soils
In order to investigate the influence of iron and aluminium oxide on microbial biomass in volcanic ash soils, we examined the relationships between the amounts of soil microbial biomass, evolved carbon dioxides and free iron and aluminium oxides. Eight soils were treated with H_2O_2 to remove organic matter, sterilized, inoculated with nonsterile soil, and incubated for 98 days with or without the addition of rice straw. The results obtained are as follows. The amount of soil organic C was decreased, while the amounts of free iron and aluminium oxides were increased by treatment with H_2O_2. The amount of ”stable” microbial biomass held in the soil at the latter period of incubation was also decreased. Therefore, it was suggested that soil organic matter could increase the amount of stable microbial biomass. Furthermore, within H_2O_2-treated soils, a negative correlation was obtained between the amount of evolved carbon dioxide and the amount of stable microbial biomass and the amount of free aluminium oxides, suggesting that free aluminium oxides retard the decomposition of organic matter by soil microorganisms and reduce the amount of stable microbial biomass.
Subjects
農学 ( Other)
Languages jpn
Resource Type journal article
Publishers 日本土壌肥料学会
Date Issued 1999-04-05
File Version Version of Record
Access Rights open access
Relations
[ISSN]0029-0610
[NCID]AN00195767
[isVersionOf] [NAID]http://ci.nii.ac.jp/naid/110001747116/
Schools 農学部