Estimating nitrogen budgets of Typha angustifolia by considering the regrowth shoot productivity and nitrogen content after harvesting aerial organs in different growing seasons
Abstract:A dynamic model that includes regrowth after harvesting aerial shoots of an emergent macrophyte, Typha angustifolia L., was applied to evaluate the nitrogen (N) budget and the N uptake by the plant from sediment in Shibakawa Pond, Japan. Under natural conditions (control/ uncut stands), the analysis showed that the annual uptake of N from sediment was 26.6 gN/m 2 and harvesting Typha shoots at their growth peak removed 29.0 gN/m 2 from the system (142 days in summer). Harvesting in winter after weathering of l… Show more
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