Abstract
We analyzed the physicochemical and spectroscopic properties of three charred plant fragments (CPF) that were isolated from three volcanic ash soils in Japan. Values of δC showed that the CPF originated from C3 and C4 plants. The contribution ratio of C4 plants to the CPF was much higher in Soils 1 and 3 than in Soil 2. Values of δN of the CPF were higher in Soil 3 isolated from the deeper soil horizons. Light reflectance values suggested that part of the CPF experienced combustion temperatures higher than 400 C in Soil 2 and less than 400 C in the other soils, respectively. Atomic [H]/[C] and [O]/[C] ratios suggested that the CPF were subjected to weathering (oxidative degradation and hydrolysis) in soil for a long period after burning. The degree of weathering was considered to be larger in Soils 1 and 3. Spectra of C-NMR of the CPF, except the area of alkyl-C, were similar. Infrared (IR) spectra of three CPF, except aliphatic C-H stretching, were also similar to each other. The X-ray diffraction patterns of the CPF in Soil 2 clearly revealed the presence of graphite-like structure. From these findings, it was assumed that the physicochemical and spectroscopic characteristics of the CPF were strongly influenced by the type of burnt vegetation.Copyrigh
| Original language | English |
|---|---|
| Pages (from-to) | 695-700 |
| Number of pages | 6 |
| Journal | Soil Science |
| Volume | 177 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Dec 1 2012 |
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All Science Journal Classification (ASJC) codes
- Soil Science
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Physicochemical and spectroscopic characteristics of charred plant fragments in japanese volcanic ash soils. / Nishimura, Syusaku; Fujitake, Nobuhide; Hiradate, Syuntaro; Shindo, Haruo.
In: Soil Science, Vol. 177, No. 12, 01.12.2012, p. 695-700.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Physicochemical and spectroscopic characteristics of charred plant fragments in japanese volcanic ash soils
AU - Nishimura, Syusaku
AU - Fujitake, Nobuhide
AU - Hiradate, Syuntaro
AU - Shindo, Haruo
PY - 2012/12/1
Y1 - 2012/12/1
N2 - We analyzed the physicochemical and spectroscopic properties of three charred plant fragments (CPF) that were isolated from three volcanic ash soils in Japan. Values of δC showed that the CPF originated from C3 and C4 plants. The contribution ratio of C4 plants to the CPF was much higher in Soils 1 and 3 than in Soil 2. Values of δN of the CPF were higher in Soil 3 isolated from the deeper soil horizons. Light reflectance values suggested that part of the CPF experienced combustion temperatures higher than 400 C in Soil 2 and less than 400 C in the other soils, respectively. Atomic [H]/[C] and [O]/[C] ratios suggested that the CPF were subjected to weathering (oxidative degradation and hydrolysis) in soil for a long period after burning. The degree of weathering was considered to be larger in Soils 1 and 3. Spectra of C-NMR of the CPF, except the area of alkyl-C, were similar. Infrared (IR) spectra of three CPF, except aliphatic C-H stretching, were also similar to each other. The X-ray diffraction patterns of the CPF in Soil 2 clearly revealed the presence of graphite-like structure. From these findings, it was assumed that the physicochemical and spectroscopic characteristics of the CPF were strongly influenced by the type of burnt vegetation.Copyrigh
AB - We analyzed the physicochemical and spectroscopic properties of three charred plant fragments (CPF) that were isolated from three volcanic ash soils in Japan. Values of δC showed that the CPF originated from C3 and C4 plants. The contribution ratio of C4 plants to the CPF was much higher in Soils 1 and 3 than in Soil 2. Values of δN of the CPF were higher in Soil 3 isolated from the deeper soil horizons. Light reflectance values suggested that part of the CPF experienced combustion temperatures higher than 400 C in Soil 2 and less than 400 C in the other soils, respectively. Atomic [H]/[C] and [O]/[C] ratios suggested that the CPF were subjected to weathering (oxidative degradation and hydrolysis) in soil for a long period after burning. The degree of weathering was considered to be larger in Soils 1 and 3. Spectra of C-NMR of the CPF, except the area of alkyl-C, were similar. Infrared (IR) spectra of three CPF, except aliphatic C-H stretching, were also similar to each other. The X-ray diffraction patterns of the CPF in Soil 2 clearly revealed the presence of graphite-like structure. From these findings, it was assumed that the physicochemical and spectroscopic characteristics of the CPF were strongly influenced by the type of burnt vegetation.Copyrigh
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U2 - 10.1097/SS.0b013e31828047ab
DO - 10.1097/SS.0b013e31828047ab
M3 - Article
AN - SCOPUS:84873407091
VL - 177
SP - 695
EP - 700
JO - Soil Science
JF - Soil Science
SN - 0038-075X
IS - 12
ER -