Eutrophication Evaluation Model and Application for Reservoir Based on Fuzzy Pattern Theory
According to the objective fact that eutrophication degree of water body belongs to fuzzy concept,an eutrophication evaluation model is explored and is applied in this paper based on fuzzy pattern recognition model proposed by Chen Shouyu.The evaluation model considers total phosphorus (TP),total nitrogen (TN),transparency degree (SD),chlorophyll (Chla) and permanganate index (CODMn)total 5 indicators.A large reservoir for water supply is taken as an object for carrying out the research on eutrophication evaluation based on the monitoring data in the period of 2005-2008.The eutrophication evaluation results show eigenvalues of annual average are respectively 2.8290,2.7177,2.8449 and 2.5354,eigenvalues of flood period are 2.9138,2.7314,2.9717,2.4447,and eigenvalues of non-flood period are 2.7483,2.7125,2.7138,2.6488.The above results show that the reservoir is under transitional stage from mesotrophic and light eutrophication,and the proposed model for eutrophication evaluation is reasonable and satisfactory.
eutrophication pattern recognition evaluation model
Cheng Yuan LIU Jinbao
Department of building engineering Chongqing Industry & Trade Polytechnic Chongqing,China Department of Water Conservancy Zhejiang Tongji Vocational College of Science and Technology Hangzho
国际会议
杭州
英文
1554-1556
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）