Comparison of humic acids from charred residues of Susuki (Eulalia, Miscanthus sinensis A.) and from the A horizons of volcanic ash soils.
Comparison of humic acids from charred residues of Susuki (Eulalia, Miscanthus sinensis A.) and from the A horizons of volcanic ash soils.
复制标题
Susuki(Eulalia、Miscanthus sinensis A.)烧焦残留物和火山灰土壤 A 层中腐植酸的比较。
DOI:
10.1080/00380768.1986.10557539
复制
发表时间:
1986
影响因子:
2
通讯作者:
Y. Matsui
中科院分区:
文献类型:
--
作者:
H. Shindo;T. Higashi;Y. Matsui
The physico-chemical and spectroscopic properties of humic acids from the charred residues of Susuki (Eulalia, Miscanthus sinensis A.) and from the A horizons of volcanic ash soils were compared. The humic acid (M-HA) of charred Susuki residues belonged to Type A. The elementary composition (C: 61.0%. H: 3.1%. N: 1.5%.0: 34.4%), δlog K (0.57), and RF (97) values of M-HA, except for N content, fell Within the ranges of those of the Type A humic acids in the A horizons of volcanic ash soils. The UV, visible, and IR absorption spectra of M-HA were similar to those of the Type A soil humic acids. Like the Type A soil humic acids, the X-ray diffraction pattern of the M-HA revealed the presence of two peaks at d=3.5 and 2.1A, corresponding to the (002)- and (10)-bands of graphite, respectively. The Fourier transformation method of (002)-band enabled to show that the M-HA mainly consisted of stacked fractions of two and three layers, as in the case of the Type A soil humic acids.