Forest vegetation and soil conditions on small Sabo-dam in Mts.Rokko, Hyogo Prefecture, Japan
2009
Kodate, S.(University of Hyogo, Sanda (Japan). Inst. of Natural and Environmental Sciences)
The purpose of this study is to clarify the correlation forest vegetation and soil on two type environments (sediment deposit and colluvial slope) at small sabo-dam in Mts. Rokko, Hyogo Prefecture, Japan. These forests were dominated by Salix sieboldiana, Alnus sieboldiana etc., and had different species composition compared with neighborhood secondary forest. The soil C (0.75%) and N (0.01%) content at surface soil (0-10, 10-20 cm) of these forest were less than that of neighborhood secondary forest. The soil volume weight (116-172 g/100 ml) at surface soil was higher than that of neighborhood secondary forest. Total basal area at sediment deposit stands more closely correlated with soil volume weight. In contrast, total basal area at colluvial slope stands more closely correlated with electrical conductivity.
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