Abstract: Samples of three types soil （mountain red soil, mountain yellow soil, mountain brown soil） at different altitude in Mountain Lu was collected, and organic matter, total N, available P and available K of different levels soil were analyzed in order to understand the factors affecting soil nutrient content. The results show that the soil nutrient content in Mountain Lu is mainly affected by climate, water, temperature and vegetation, and has obvious vertical distribution. As the altitude rose, organic matter content increased. The content of soil organic matter was positively correlated with the contents of total nitrogen and available potassium, but had no significant correlation with the content of available phosphorus. The total contents of soil nutrients except available phosphorus were high.

Key words: soil type, soil organic content, nutrient content, Mountain Lu