【文章內(nèi)容簡介】
m was high. The concentration of TN in the water was highest in summer. The concentration of TN in sediments was rising during the whole sampling and reached the highest in autumn. In water, the concentration of NH3N was highest in summer, the concentration of NO3N was higher in spring and autumn, and the concentration of NO2N was highest in winter. In sediments, the concentration of NH3N was highest in winter, the concentration of NO3N was highest in autumn, and the concentration of NO2N was highest in spring.[Conclusion] The spatial difference of nitrogen in the surface wat