[1]BIAN Jian-min,HU Yu-xin,LI Yu-song,et al.Water Quality Assessment in Source Area of Liao River Based on BP Neural Network[J].Research of Soil and Water Conservation,2014,21(01):147-151.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 01
Page number:
147-151
Column:
Public date:
2014-02-28
- Title:
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Water Quality Assessment in Source Area of Liao River Based on BP Neural Network
- Author(s):
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BIAN Jian-min1, HU Yu-xin1, LI Yu-song1, MA Yong-xiang2, BIAN Jing3
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1. College of Environment and Resources, Jilin University, Changchun 130021, China;
2. Ningxia Hui Autonomous Region Bureau of Coal Geological Exploration, Yinchuan 750004, China;
3. Geo-Environmental Monitoring Central Station of Jilin Province, Changchun 130021, China
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- Keywords:
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source area of Liao River; BP neural network; network training; water quality assessment
- CLC:
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X524;TP183
- DOI:
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- Abstract:
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Based on the present situation that the water environmental issues in source area of Liao River have become increasingly prominent, the research for water environment quality was carried out to evaluate and analyze the regional water quality. Through data collection and summary, a comprehensive water quality evaluation model was established based on the thought and theory of BP artificial neural network with including pH, DO, ammonia nitrogen, COD, BOD5, potassium permanganate index, and finished with water quality monitoring data of the 13 sections in the study area. After training well, it can just be applied in model simulating operation and water quality comprehensive evaluation. The results have showed that in the selected sections, approximately 76.92% of the sections are between class V and worse than class V, leaving only 23.08% of the sections whose water quality levels are between class Ⅱand class Ⅲ in the selected 13 sections. The sections located in the upper reaches have a better water quality than that in the downstream. Compared the evaluation results with the results of main sections published in Environment Communique, 81.25% of the evaluation results are identical. It has strong applicability and reliability that BP neural network was used to comprehensively evaluate water quality in the study area.