2005 年 55 巻 1 号 p. 91-97
Mt. Apoi in Hokkaido is a massif in which olivine is the bedrock. There are many endemic plant species on this mountain, and alpine plants grow at a comparatively low altitude of 810 m. For these reasons, the characteristic soil environment is of considerable interest. In this study, metal ion exchange in the soil environment and plant distribution were investigated. The results showed that the environment has a high nickel and magnesium concentration and a low calcium concentration in areas where characteristic plant species are distributed, alpine plants growing mainly in olivine soil.