Impact of Nutrients and Temperature on Algal Growth and Relative Abundance of Xixi Wetland, China

Abstract:

This paper focused on eutrophication and algal succession problems of freshwater ecosystems. Water samples of the Xixi Wetland were sampled in the late autumn and early winter of 2013, and then analyzed for nitrogen and phosphorus species and chlorophyll-a indicators. Artificial climate chamber was used to simulate the nitrogen input and global warming scenario, to study the effect of nutrients (ammonia and nitrate) addition and temperature on the algal growth. The results show that the water quality of the wetland is good with TP, ammonia, and TN during the study period. Interaction impact of nutrients addition and temperature increase the relative abundance of cyanobacteria significantly (p<0.01), the total biomass was found to be more sensitive to ammonia addition. Therefore, it is especially important to pay more attention on this wetland during the algal bloom sensitive period of increasing temperature in early summer.

• Periodical: Applied Mechanics and Materials (Volume 665)
• Pages: 426-429
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.665.426
• Online since: October 2014
• Authors: Wan Min Ni
• Keywords: Algal Growth, Global Warming, Nutrient, Relative Abundance, Wetland

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