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Relationships between the Amount of Microbial Biomass and the Physicochemical properties of soil : comparison between volcanic and non-volcanic ash soils

Journal of the science of soil and manure, Japan Volume 68 Issue 6 Page 614-621
published_at 1997-12-05
2007020018.pdf
[fulltext] 3.33 MB
Title
土壌中の微生物バイオマス量と理化学性の関係 : 火山灰土壌と非火山灰土壌の比較
Relationships between the Amount of Microbial Biomass and the Physicochemical properties of soil : comparison between volcanic and non-volcanic ash soils
Creators Guan Gang
Creators Marumoto Takuya
Creators Shindo Haruo
Creators Nishiyama Masaya
Creator Keywords
火山灰土壌 土壌の理化学性 バイオマスC量 バイオマスN量 非火山灰土壌 microbial biomass-C microbial biomass-N non-volcanic ash soils physicochemical characteristics volcanic ash soils
We measured the amount of microbial biomass and some physicochemical properties of 9 volcanic ash soils and 7 non-volcanic ash soils in Japan and analyzed their relationships. The results obtained are as follows : 1) The amounts of biomass C and N did not significantly differ between the volcanic (58-1504 mgC kg^<-1>, 10-180 mgN kg^<-1>) and non-volcanic ash soils (11-1118 mgC kg^<-1>, 2-124 mgN kg^<-1>). 2) Both in volcanic and non-volcanic ash soils, the amounts of biomass C and N showed significant relationships (r≧0.826^*, n=7) with organic C content, total N content, total humus content, NaOH-extracted humic acid content, NaOH-extracted fulvic acid content and Al_2O_3 content. The relationships between the amounts of biomass C and N and the CEC and phosphate absorption coefficient were significant (r≧0.809^<**>, n=9) only in volcanic ash soils, and the relationship between the amount of biomass and clay content was significant (r≧0.839^*, n=7) in non-volcanic ash soils. The soil characteristics having significant relationships (r≧0.902^<**>, n=9) with the amount of biomass also showed significant relationships (r≧0.827^*, n=7) with fulvic acids, total humus, humic acids or organic C contents. 3) The relationships between the amounts of biomass C and N and several soil characteristics such as organic C, total N, total humus, fulvic acids, humic acid content, CEC, phosphate absorption coefficient and Al_O_3 content can be separated into two groups: volcanic ash soil group and non-volcanic ash soil group.
Subjects
農学 ( Other)
Languages jpn
Resource Type journal article
Publishers 日本土壌肥料学会
Date Issued 1997-12-05
File Version Version of Record
Access Rights open access
Relations
[ISSN]0029-0610
[NCID]AN00195767
[isVersionOf] [NAID]http://ci.nii.ac.jp/naid/110001751826/
Schools 農学部