One, that the wastewater chemistry is very different from that of natural waters, contain high concentrations of nutrients. Two, saltcedar dominates the riparian plant community in basal area and density for both the effluent and control sites. Three, the rate of growth in all three tree species increases when exposed to wastewater. And four, there appears to be more birds using the wastewater site than the natural site, with fish-eaters and blackbirds having the greatest impact.
So, maybe wastewater is nature's power drink, but it still too early to tell. More information is needed before we can correctly state whether wastewater is good or bad, or neither, for the plants and animals that live along the rivers.
Roy Marler. (2009, October 08). Conclusions. ASU - Ask A Biologist. Retrieved April 6, 2020 from https://askabiologist.asu.edu/fr/content/conclusions
Roy Marler. "Conclusions". ASU - Ask A Biologist. 08 October, 2009. https://askabiologist.asu.edu/fr/content/conclusions
Roy Marler. "Conclusions". ASU - Ask A Biologist. 08 Oct 2009. ASU - Ask A Biologist, Web. 6 Apr 2020. https://askabiologist.asu.edu/fr/content/conclusions