Nutrient dynamics and GHG emissions in <i>Azolla</i> and <i>Typha</i> based cultivation on inundated former agricultural soils.

ABSTRACT:

Background and aims

Restoration and novel creation of wetlands is crucial as they store and purify water, sequester carbon, and are biodiversity hotspots. However, wetland rehabilitation on agriculturally-used soils typically causes water quality issues, low biodiversity and high methane emissions. To tackle these challenges in a novel, cost-effective way, Azolla filiculoides, a water-fern capable of nitrogen fixation and phosphorus (P) accumulation, could be cultivated after inundation to simultaneously extract nutrients and provide a commercial product.

Methods

We cultivated A. filiculoides and a polyculture of A. filiculoides and Typha angustifolia, an emergent macrophyte, on two P-rich former agricultural mineral soils in an outdoor mesocosm e

SUBMITTER: Vroom RJE 

PROVIDER: S-EPMC12830449 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature