Study on the influence of small hydropower stations on the macroinvertebrates community-Take Nanhe River as a case, China

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Zhao, Weihua^1 ; Li, Qingyun^1 ; Guo, Weijie^1 ; Wang, Zhenhua^1

Basin Water Environmental Research Department, Yangtze River Scientific Research Institute, Wuhan

430010, China^1

关键词: Hydropower stations;    Macroinvertebrates;    Natural river;    Runoff regulations;    Small hydropower stations;    Species abundance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012069/pdf
DOI  :  10.1088/1755-1315/64/1/012069

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This study take Nahan River as a case to research the impacts of small hydropower stations on macroinvertebrates community. Results showed that a total of 13 macroinvertebrate samples was collected and contained 56 taxa belonging to 18 families and 35 genera. The influence of runoff regulation was more seriously than hydrological period. There were obvious zoning phenomenon of macroinvertebrates between reservoir, downdam reaches and natural reaches. From reservoir, downdam reaches to natural reaches, species abundance increased in turn. There are the least species in reservoir, the most in natural rivers. The reservoirs had the highest biomass and were quite different from those in downdam and natural reaches. However, there was no significant difference between different periods of hydropower station.