秋田地方のスギ林土壤及び黒色土に関する研究(第I報) : 土壤型と化学的性質との関係(その1)

概要

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This study was made to get some information on the japanese ceder forest soils in Akita district and black soils (ando soils). Auother object of the study was the clarification of differences in the chemical properties among the soil types classified by Ohmasa and now being applied in the national forest soil survey.Site conditions of the profiles are shown in Table 1 and chemical properties of them are in Table 2.The following results were obtained : On japanese ceder forest soils, the wet-type soils (BE and BD) showed lower C-N ratios, smaller exchangeable acidity, higher pH value, more base exchangeable capacity and more exchangeable calcium content than the dry-type soils (BA and BB type) and podsol soil (PD_I type) at the same horizon of the tested profiles.The soil acidity and leaching of the bases were more remarkable in BA type (steep slope type) than BB type (gentle slope type) in the dry brown forest soil.In black soils, BlD' type showed intermediate values between the wet- and dry-type of the japanese ceder forest soils, but in (Bl)C type the increase of the soil acidity and the increase of the soil acidity and the leaching of the bases were greater than BlD' type.
一般社団法人日本森林学会の論文
1954-08-25