摘要 Two-factor analysis of variance and redundancy analysis were used to analyze the characte-ristics of soil organic carbon and total nitrogen storage in garden land, forestland, grassland, farmland, and bare land in the Dachunhe watershed of Jinning District, Kunming City, Yunnan Province, China. The effects of the soil organic carbon and total nitrogen stratification ratio and soil physical and chemical factors on the storage characteristics of organic carbon and total nitrogen of different land-use types were analyzed. The results showed that the rates of carbon and nitrogen stratification in soil from 0-20 cm and 40-60 cm of the same land-use types differed were statistically significant(P& lt; 0.05). The organic carbon and total nitrogen stratification ratio SR1 of garden land soil was 38.5% and 25.3%, respectively, higher than SR2. The soil organic carbon and total nitrogen stratification ratio SR2 of diffe-rent land-use types are greater than SR1. There were statistically significant differences in the SR2 soil organic carbon and total nitrogen stratification ratios(P& lt; 0.05). Soil organic carbon and total nitrogen storage of different land-use types gradually decreases with increasing soil depth, with the maximum soil organic carbon and total nitrogen storage in the 0-20 cm soil layer. Soil organic carbon and total nitrogen storage at the same soil depth were significantly different(P& lt; 0.05). Soil organic carbon and total nitrogen storage in the garden land were greater than those in the other land-use types. Soil orga-nic carbon and total nitrogen storage in 0-20 cm garden land were 4.96 and 3.19 times those in bare land, respectively; soil organic carbon and total nitrogen storage were explained by 93.66% and 1.53% in redundancy analysis RDA1 and RDA2, respectively. All physicochemical factors except Available Phosphorus and pH were statistically significance with carbon and nitrogen storage(P& lt; 0.05). Soil ca-tionic exchange capacity, Available Phosphorus, C/N ratio, and Moisture Content were positively correlated with organic carbon and total nitrogen storage. In contrast, soil Bulk Density was negatively correlated with organic carbon storage and total nitrogen; soil cation exchange capacity. Available Phosphorus, C/N ratio, and Moisture Content were the main factors promoting soil organic carbon and total nitrogen accumulation.
