Nutrient kinetics of dominant species of phytoplankton in the artificial lakes formed from land subsidence by mining activities in the Huainan coalmine subsidence areas????(Open Access)

作者：Zhang, Xin; Yi, Qitao^*; Xie, Kai; Zhang, Siliang; Yu, Yanxia; Zhang, Yin

来源：Hupo Kexue/Journal of Lake Sciences, 2018, 30(3): 713-722.

DOI：10.18307/2018.0313

• Artificial lake
• Competition ability
• Dominant species
• Mining activities
• Nutrient limitations
• Nutrient management
• Phytoplankton community
• Subsidence areas

Three lakes in the Huainan Panxie coalmine areas, with different nutrient ratio, were investigated for their phytoplankton communities in four seasons from 2014 to 2015. Three dominant species (genera) of phytoplankton, including Chroomonas caudata, Cyclotella catenata and Pseudanabaena sp., were selected to obtain their nutrient kinetics by a number of incubation experiments with limitation for individual nitrogen (N) and phosphorus (P). Under N limitation conditions, the maximum specific growth and half-saturated constant for the three species of Chroomonas caudate, Cyclotella catenata and Pseudanabaena sp. were 0.66 d-1and 1.66 mg/L, 0.37 d-1and 1.06 mg/L, 0.71 d-1and 2.26 mg/L, respectively;with respect of P limitation conditions, they were 0.51 d-1and 0.023 mg/L, 0.31 d-1and 0.035 mg/L, 0.90 d-1and 0.015 mg/L, respectively. Especially, the Pseudanabaena sp. takes dominant role due to its nutrient competition ability under P limitation in this type of lakes, where N is sufficient for its growth. This research has important implication on local nutrient management of water resources in the coal mine areas.

• 出版日期2018
• 单位安徽大学