This project uses polyphenol research and stable isotope analysis to focus on the impact that invasive plant and tree species such as F. japonica, I. glandulifera, and A. altissima have upon nitrogen cycling within the soil of riparian zones.

Major questions:

Does Impatiens glandulifera impact nitrogen cycling? Does Fallopia japonica have an affinity for ammonium? Do invasive trees impact nitrogen cycling in the same manner that invasive plants, such as F. japonica, do? What polyphenols are responsible for altering nitrogen cycling?

Scientist: Sierra Grange, Prof. Dr. Hermann Jungkunst, Dr. Clara Mendoza-Lera, Dr. Melanie Brunn 

Funding: German Research Foundation