Abstract:

For the discussion on the riverside of soil characteristics, by the persulfate digestion and M3 methods determine the N, P content at different depths of the soil, analyzed the characteristics of the soil's longitudinal natural infiltration and transverse migration in riverside. The results showed that: the N, P content at different depths of the soil was y=-0.1308+0.2546x, R2=0.9173 and y=0.0287+0.5617x, R2=0.9675, which had a good correlation. The N, P content of riparian zone soil mainly distributed in 0-10 cm soil layer, the highest was in 5 cm soil layer, the N, P content in surface soil was significantly higher than the lower soil, the characteristics assumed that migration from top to bottom. The surface soil of downstream riverside with N content was significantly higher than the upstream, while the volume of soil containing of P mainly concentrated in the upper soil surface, and the mainly concentrate was upon 5 cm soil layer in the lower reaches. Analysis on the characteristics of the soil's longitudinal natural infiltration and transverse migration in riverside must be intergrated suppress the rising trend of soil nitrogen, phosphorus content from the vertical and horizontal.