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This study selected two major into Yunnan river (large in Qinghe, the Haihe), on the basis of the preliminary investigations, combined with the river and the river of nitrogen and phosphorus pollution of Dianchi Lake Pollution Research, to select seven monitoring of the different sections of the Great River and Haihe and temporal variation in cross-section, on the river of nitrogen and phosphorus pollutants carried out for a period of 2 years, 1 month designated dynamic monitoring study of nitrogen and phosphorus pollutants. Annually in the first three games of strong rainfall (10mm) of nitrogen and phosphorus pollutants and water environment. The main conclusions are as follows: (1) Great River, Haihe nitrogen and phosphorus pollutants concentration showed a significant annual changes. 2006-2007, 2007 - 2008 Daqinghe total nitrogen concentration, respectively, between 11.20-45.54mg / L ,5.24-45 .00 mg / L; ammonium nitrogen concentration 6.15-40.70 mg / L ,0.56-37 1.8 mg / L between change; between changes in nitrate concentration of 0.03-0.82 mg / L 0.02 to 7.58 mg / L; varied between total phosphorus concentration of 0.41-4.20 mg / L, 0.20 to-5 .70 mg / L; soluble phosphorus concentration of 0.05- 3.20 mg / L ,0.04-4 .20 mg / L between changes. 2006-2007 2007-2008 Haihe total nitrogen concentration of 11.1-60.1 mg / L 7.1-96 .2 mg / L; ammonium nitrogen concentration of 0.1-49.2 mg / L ,4.3-82 .7 mg / L between changes ; nitrate concentration of 0-1.2 mg / L change; between changes in the total phosphorus concentration 0.8-10,0.6-17 mg / L; soluble phosphorus concentration 0-7.1,0.3-15.5 mg / L between. Ammonium nitrogen TN major part of the soluble phosphorus is a major part of total phosphorus. (2) large Qinghe, Haihe nitrogen and phosphorus pollutant concentration changes of differences between significant inter-annual and seasonal. Great River, total nitrogen, ammonium nitrogen and Haihe nitrate concentration showing 2006-2007 than 2007-2008; Great River, Haihe River, total phosphorus, soluble phosphorus, and Great River nitrate concentration showed 2006-2007 is lower than 2007-2008. Great River 2006-2007 total nitrogen, ammonium nitrogen 2007-2008 Nitrate 2007-2008 total phosphorus, soluble phosphorus and the Haihe the total nitrogen, ammonium nitrogen, total phosphorus, soluble phosphorus concentration in performance The trend of the dry season than the wet period; total nitrogen, ammonium nitrogen ,2006-2007 nitrate ,2006-2007 total phosphorus, soluble phosphorus concentration showed the dry season than the wet period trends. (3) large in Qinghe, the Haihe nitrogen and phosphorus pollutants presented a significant difference in the space. In general, the Haihe nitrogen and phosphorus pollutants concentration higher than the Great River. Qinghe total nitrogen, ammonium nitrogen, total phosphorus, soluble phosphorus and Haihe total nitrogen, nitrate nitrogen have shown a concentration higher than the lower end of the upper end of the monitoring watershed pollutants into Hukou at the lowest concentrations, and from top to bottom, there is a gradual decrease trend. The nitrate concentration Daqinghe change contrast. Haihe ammonium nitrogen, total phosphorus, soluble phosphorus exhibit trends into Hukou at the lowest concentrations, but not decreased. (4) heavy rainfall process (gt; 10mm) total nitrogen, ammonium, nitrate, total phosphorus dilution. (5) strong rainfall screenings significantly affect the Great River, Haihe nitrogen and phosphorus pollutant concentration changes.
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