This theis studies the organic matter accumulation type
compostion and nature of the zonal soils humus in Xinjiailg and their distributional regularity. is different from E4 in all the soil irces. The infra-rca
spectrogram make clear difference between the chemical composition and functional group in the different soil tryes humus. and E4 are good related between two. r= 0. 80 and E4 are conditioned by environment condition. It has obvious zonality law.