In water bodies and streams, water self-purification is water quality improvement. It is of vital importance to environmental safety of water supply.

In water bodies and streams, water self-purification is water quality improvement. It is of vital importance to environmental safety of water supply.

http://5bio5.blogspot.com/2016/08/in-water-bodies-and-streams-water-self.html

There are plenty of factors and processes involved. To create a scientific order in this chaos of factors is of huge importance to theory and practical applications.

See more discussion and comments here:

https://www.researchgate.net/post/Is_it_possible_to_organize_a_multitude_of_factors_and_processes_of_water_self-purification_into_a_few_groups