Algal community structure and water quality assessment in the draw down area of Hanfeng Lake during the storage and dry periods of the Three Gorges Reservoir, China

作者：Gan, Fengling; He, Binghui^*; Yang, Bing; Wang, Debao

来源：Desalination and Water Treatment, 2018, 125: 187-192.

DOI：10.5004/dwt.2018.22206

• Three Gorges Reservoir
• Hanfeng Lake
• Storage period
• Dry period
• Algal community assessment
• Water quality assessment

The water level of the Three Gorges Reservoir (TGR), the largest man-made canyon-shaped reservoir in China, reaching 172.8 m in December 2008 drew attention from all over the world. Hanfeng Lake is considered a critical zone of water management in the TGR. Thus, to understand the water environment and changes to the algal community structure of Hanfeng Lake at the 172. 8 m water level, the physical parameters, chemical parameters, number of phytoplankton species, biological density, and biomass of the ecological index in the lake were observed 12 times over one year during the storage period (January-February and September-December) and the dry period (April-August) in 2015. The results indicated that the trend of variation in concentration of each environmental factor has consistent influence trend in Hanfeng Lake. The distribution diversity of Hanfeng Lake in the storage period was generally higher than that in the dry period, while the distribution was more uniform and the species richness was lower in the storage period. Based on our investigation of water quality in Hanfeng Lake in 2015, the Hanfeng Lake belong beta-pollution to alpha-pollution.

• 出版日期2018-9
• 单位西南大学