Relationship between distribution of charred plant residues and humus composition in chernozemic soils
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- NISHIMURA Syusaku
- Faculty of Agriculture, Yamaguchi University
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- TANI Masayuki
- Department of Agro-environmental science, Obihiro University of Agriculture and Veterinary Medicine
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- FUJITAKE Nobuhide
- Faculty of Agriculture, Kobe University
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- SHINDO Haruo
- Faculty of Agriculture, Yamaguchi University
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To gain a fundamental understanding about the relationship between the distribution of charred plant residues and the humus composition in chernozemic soils, 15 soil samples were collected from Kazakhstan, Ukraine, and Hungry. Total organic C (TOC) content of whole soil ranged from 16.2 to 61.4g C kg^<-1> whole soil, and the organic C content of the fraction (mainly charred plant residues) of less than specific gravity 1.6g cm^<-3> (CPC) varied from 0.657 to 3.96g C kg^<-1> whole soil, except for 2 samples. The percentage contribution of the CPC to the TOC ranged from 2.16 to 9.29% and was 4% or more in 7 out of 15 soil samples. In all soils, the amounts of Type A humic acids exceeded greatly those of fulvic acids. The CPC was highly correlated (r>0.770) with the TOC, amounts of humic and fulvic acids, and the color coefficient of humic acid. The ^<13>C nuclear magnetic resonance spectra of selected humic acids showed that the relative contents of the aromatic-C were the highest among carbon species and that the aromaticity values ranged from 0.464 to 0.742. It is assumed that in the chernozemic soils, charred plant residues contribute to the formation of Type A humic acid and fulvic acid as one of the constituents of soil organic matter, as in the case of Japanese Andosols.
収録刊行物
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- ペドロジスト
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ペドロジスト 53 (2), 86-93, 2009-12-31
日本ペドロジー学会
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詳細情報 詳細情報について
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- CRID
- 1390001288040329472
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- NII論文ID
- 110008800043
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- NII書誌ID
- AN00223512
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- ISSN
- 21897336
- 00314064
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- NDL書誌ID
- 10580909
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
- Crossref
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- 抄録ライセンスフラグ
- 使用不可