Organic Carbon Cycle in Eutrophic Water Body

Dear Colleagues,

Due to the impact of human activities and climate change, inland natural water bodies (lakes, rivers, ponds, streams, wetlands, etc.) are facing the threat of eutrophication. These freshwater ecosystems are undergoing or have undergone a steady-state transition from macrophyte-dominant clear water state to algae-dominant turbid water state. A large amount of algae gather or accumulate to form algal blooms, which have significantly changed the carbon cycle intensity of eutrophic water due to their easy decomposition characteristics. Eutrophic water bodies receive not only a large amount of exogenous nutrients, such as nitrogen and phosphorus, but also exogenous organic matter. These internal and external organic matter converge and decompose in the water body, which may significantly promote the decomposition of refractory substances in the water body, release greenhouse gases, and even cause biofeedback on climate change. Therefore, this Special Issue mainly focuses on the source and composition of organic matter, including particulate organic matter and dissolved organic matter in eutrophic water bodies via various traceability technologies, the migration and transformation process of organic matter in water bodies (microbial processes), and the environmental effects caused by the decomposition of organic matter (black and odorous water bodies, greenhouse gas release, etc.).

Dr. Xiaoguang Xu
Dr. Jie Ma
Guest Editors

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