Earth and Planetary Sciences
a year ago

Urban Lakes Shift from CO2 Emitters to Absorbers During Algal Blooms

Environmental Research
Changes in CO2 concentration and degassing of eutrophic urban lakes associated with algal growth and decline
Liuqing Zhang, Y. Jun Xu, Siyue Li

Paper Summary

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Urban lakes in Central China were studied to understand how algal growth affects CO2 levels. Moderately-eutrophic lakes release more CO2 when not in bloom, but absorb CO2 during algal blooms. Lightly-eutrophic lakes emit less CO2 during blooms. Chlorophyll-a and oxygen levels influence CO2 dynamics in lakes. Algal growth and decline phases impact CO2 levels and exchange flux in urban lakes.