Major

Environmental Science

Anticipated Graduation Year

2022

Access Type

Open Access

Abstract

Invasive species in the Great Lakes pose ecological, economic, and social dilemmas as they alter and diminish the quality of ecosystems. By dominating native plant communities through efficient uptake of excess nutrients, the hybrid cattail, Typha × glauca, reduces the plant diversity of Great Lakes coastal wetlands, homogenizing habitat for many species of fish, animals, and insects. This study investigated how biochar, a charcoal-like substance, affected biomass accumulation in hybrid cattails and native wetland plants. I conducted a greenhouse experiment by growing assemblages of native wetland plants, Typha × glauca, and a combination of both native species and hybrid cattails in separate buckets with a homogenized, sand-compost mixture containing 0%, 2.5%, and 5% biochar by weight for approximately fifty days. I found that biochar reduced the overall biomass of Typha × glauca when comparing the 2.5% and 5% biochar applications to the 0% application. Biochar was also found to change the phosphorus content in Typha × glauca, a nutrient which is often found in excess in wetlands due to agricultural pollution. This preliminary study provides evidence that biochar has the potential to reduce the biomass of Typha × glauca, therefore impeding its dominance in Great Lakes coastal wetlands.

Community Partners

Lee Botts Great Lakes Research Fellowship

Faculty Mentors & Instructors

Dr. Brian Ohsowski; Shane Lishawa; Drew Monks

Supported By

University of Michigan Biological Station

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

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Examining the Effect of Biochar on Invasive Typha x glauca in a Greenhouse Experiment

Invasive species in the Great Lakes pose ecological, economic, and social dilemmas as they alter and diminish the quality of ecosystems. By dominating native plant communities through efficient uptake of excess nutrients, the hybrid cattail, Typha × glauca, reduces the plant diversity of Great Lakes coastal wetlands, homogenizing habitat for many species of fish, animals, and insects. This study investigated how biochar, a charcoal-like substance, affected biomass accumulation in hybrid cattails and native wetland plants. I conducted a greenhouse experiment by growing assemblages of native wetland plants, Typha × glauca, and a combination of both native species and hybrid cattails in separate buckets with a homogenized, sand-compost mixture containing 0%, 2.5%, and 5% biochar by weight for approximately fifty days. I found that biochar reduced the overall biomass of Typha × glauca when comparing the 2.5% and 5% biochar applications to the 0% application. Biochar was also found to change the phosphorus content in Typha × glauca, a nutrient which is often found in excess in wetlands due to agricultural pollution. This preliminary study provides evidence that biochar has the potential to reduce the biomass of Typha × glauca, therefore impeding its dominance in Great Lakes coastal wetlands.