Luxury Uptake and Removal of Phosphorus from Water Column by Representative Aquatic Plants and Its Implication for Wetland Management

Table 6

Relationship between total P (PTS) stored in P. stratiotes with plant biomass (B) and residual DIP in the experimental basin (RP). The squared multiple of correlation coefficient (𝑅²) and F statistics are also shown with multiple regression analysis.

Supplied DIP (in mg/L)	Regression equation	R^2	𝐹
0.5	PTS = 15.59 − 1.494B − 1.737RP	0.64^b	4.46 ^ns
2.5	PTS = 7.23 + 0.112B − 0.627RP	0.49 ^ns	1.92 ^ns
5	PTS = 6.93 + 0.669B − 0.418RP	0.52^b	2.67 ^ns
10	PTS = 2.21 + 1.032B − 0.142RP	0.96 ^ns	54.49^c
30	PTS = 13.65 + 0.669B − 0.369RP	0.7 ^ns	5.94^a
50	PTS = 23.12 + 0.516B − 0.722RP	0.86 ^ns	15.82^b

R² and 𝐹 values are significant: ^b𝑃<0.05, ^b𝑃<0.01, ^c𝑃<0.001 with d.f 2,5 for the supplied Phosphorus of 0.5, 2.5, 5, 10, 30, and 50 mg/L.
^nsNot significant.