Fig. 2: Stoichiometric homeostasis for phosphorus (P) of the submerged macrophytes. | npj Clean Water

Fig. 2: Stoichiometric homeostasis for phosphorus (P) of the submerged macrophytes.

From: Eutrophication drives regime shift via changes in stoichiometric homeostasis-based submerged macrophyte assemblages

Fig. 2

a Relationship between the water total P and plant tissue P contents in submerged macrophytes, b assemblage stoichiometric homeostasis for P (HPI) under P + H. HPI was obtained using the following equation: log(y) = log(c) + (1/HPI) × log(x); where y is the P content in plant tissues, x is the P level in the water column, and c is a constant. Error bars demonstrate standard errors (n = 3). Different lowercase letters before the slash are significantly different among P levels on the same day (p < 0.05). OP, MP, EP indicated three P levels of oligotrophic P (P concentration under detection limit and no P addition), mesotrophic P (0.05 mg L−1), eutrophic P (0.10 mg L−1), respectively.

Back to article page