Since ancient times, river ecosystems, as the birthplace of human civilization, have played a pivotal role in human development. The purpose of this work is to study the typical physical and chemical indicators of water quality, planktonic bacteria and riparian zone conditions for river ecosystem health assessment based on planktonic bacteria biological integrity index, with basin A as the main research object. Different waters of the river ecosystem were investigated. The water quality and biological evaluation of the river ecosystem was carried out, and the health evaluation index system and model system of the river water ecosystem based on the bio-integrity index of planktonic bacteria were determined. Plankton Integrity Index (P-IBI) values are used to assess the health of river aquatic ecosystems. In 5 follow-up ratings, health is 2x. Through the correlation analysis of the water P-IBI scores calculated by the three-point method, the four-point method and the ratio method, the correlation between the results obtained by the ratio method and the four-point method is r = 0.8145, so the quartile method and The ratio method is suitable for evaluating the water ecological health of river waters.

Lenze Nicholas. Health Assessment of River Ecosystems Based on Planktonic Bacteria Biointegrity Index. Academic Journal of Environmental Biology (2021), Vol. 2, Issue 4: 10-18. https://doi.org/10.38007/AJEB.2021.020402.

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