Figure 7
Redundancy analysis (RDA) map of the response of biofilm parameters (a) and denitrifying gene abundances (b) to environmental factors (5 and 30 indicate samples exposed to 5 and 30 mg L−1 NO3−-N, respectively). PM, P. malaianus; AP, artificial plants; VN, V. natans; EN, E. nuttallii; CD, C. demersum.
