Abstract:The method of wavelet decomposition can be used to analyse approximations and details of one dimension soil signal. It is an effective tool for soil factors analysis. The study on decomposition of Haar wavelet for three main soil factors in belt transect of Liaotunggensis forest in Dongling Mountain area, Beijing, was done by this method. The research results showed: along hillslope from under to upper, soil moisture decreased obviously step-by-step; pH of soil displayed relative stabilization and changed ...