Accumulation features of nitrogen and phosphorus in plants of Liangzi Lake wetland

Different plant species in Liangzi Lake wetland had different accumulation features of nitrogen and phosphorous. Floating-leaved macrophyte accumulated the largest amount of nutrients, with an average content of total nitrogen and phosphorus being 29.07 and 9.53 g·kg-1, respectively. The plant nitrogen and phosphorus contents were in the order of phytoplanktonfloating-leaved macrophytesubmersed macrophytericeemerged macrophyte. The nitrogen and phosphorus accumulation in plant was in the order of floating-leaved macrophyteemerged macrophytesubmersed macrophyteswamp plantrice. Hydrophyte could absorb more nitrogen and phosphorus, and the nitrogen absorption by various kinds of plant in the wetland was greater than that of phosphorus absorption.