LI Wei-nan1, WANG Xian-xun1,2, CAI Hao1, LI Xi-nan3, ZHAO Xian-jin3, MEI Ya-dong1
1. State Key Laboratory of Water Resource and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;
2. College of Resources and Environment, Yangtze University, Wuhan 430100, China;
3. Guizhou Water Conservancy and Hydroelectric Power Investigation, Design and Research Institute, Guiyang 550002, China
This paper studied the energy transformity of water in complex rivers with both hydraulic engineering and tributary inflows. A mathematical model of energy transformity of reservoir water was established by considering the renewable resources, non-renewable resources, economic and social feedback and negative output input-energy value. A mathematical model of energy transformity of main stream water after tributary inflow was established by considering the water and energy balance. The calculation method of energy transformity of complex river water was presented. The Jiayan Reservoir located at Liuchong River and the Baifu River (i.e., a branch of Liuchong River) were taken as examples to verify the method. The results showed the average chemical emergy transformity of Jiayan Reservoir was increased from 4.85×104 sej/J in the inflow to 1.15×105 sej/J in the outflow. With this case study, it was illustrated that:due to the effect of hydraulic engineering and the influx of tributaries, there were spatial differences in the energy transformity of the main stream. With the hydraulic engineering, the energy transformity of the main stream improved significantly. With the influx of tributaries, the energy transformity of the main stream was between that of the tributary and that of the main stream before the junction point.
李伟楠, 王现勋, 蔡昊, 李析男, 赵先进, 梅亚东. 复杂河流水体能值转换率研究[J]. 中国环境科学, 2019, 39(12): 5094-5100.
LI Wei-nan, WANG Xian-xun, CAI Hao, LI Xi-nan, ZHAO Xian-jin, MEI Ya-dong. Emergy transformity of river in complex river. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(12): 5094-5100.
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