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[1]ZHOU Linfei,ZHONG Qian,DONG Fujun.Evaluation and Analysis on the Eutrophication of Shifosi Constructed Wetland[J].Research of Soil and Water Conservation,2015,22(01):299-304.

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Evaluation and Analysis on the Eutrophication of Shifosi Constructed Wetland

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 01 Page number: 299-304 Column: Public date: 2015-02-28

Title:: Evaluation and Analysis on the Eutrophication of Shifosi Constructed Wetland

Author(s):: ZHOU Linfei¹, ZHONG Qian¹, DONG Fujun²; 1. College of Water Resources, Shenyang Agricultural University, Shenyang 110866, China;
2. Shifosi Reservoir Management Bureau of Liaoning, Shenyang 120003, China

Keywords:: grey clustering method; water eutrophication; evaluation; Shifosi Constructed Wetland

CLC:: X824

DOI:: -

Abstract:: The grey clustering method was used, and DO, COD_Mn, BOD₅, NH₃-N, TN and TP were selected as clustering indicators, the comprehensive evaluation on Shifosi Constructed Wetland eutrophication was carried out. The results show that the water quality status of Shifosi constructed wetland is good and has no effect on water supply, the safety of water quality can be ensured. The degree of the eutrophication after construction of wetland is lower than the that before construction of wetland, but the difference is not significant. The water eutrophication level in flood season is higher than that in non-flood season because the inflow rate is larger in flood season, more nutrients are brought into the wetland, and application of chemical fertilizer and pesticide in the crop growth season makes a large amount of N, P and other nutrients within basins move into the wetland along with the surface runoff, increasing the contents of N, P and other nutrients of the wetland. So harvesting the aquatic plants timely to prevent the secondary pollution and control of point source pollution and non-point source pollution should be regarded as the main measures to prevent eutrophication.

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