Plant distribution is investigated with regard to geologic, geomorphic, and pedologic influences. Little is known about the soil-plant relationship of native species. This study attempts to develop a basic concept that the native plant zonation can be described in terms of the above three factors simply on the basis of routine field investigations. Further studies may then be designed to bring about a more quantitative understanding of the actual nutrient and moisture regimes under which certain native species will be most commonly found
