|Title||Efficiency of three halophyte species in removing nutrients from saline water : a pilot study|
|Author(s)||Lange, H.J. de; Paulissen, M.P.C.P.|
|Source||Wetlands Ecology and Management 24 (2016)5. - ISSN 0923-4861 - p. 587 - 596.|
Alterra - Animal ecology
Alterra - Regional development and spatial use
|Publication type||Refereed Article in a scientific journal|
|Keyword(s)||Aster tripolium - Bolboschoenus maritimus subsp. compactus - Constructed wetland - Nutrient removal efficiency - Plant uptake - Salt marsh - Spartina anglica|
Saline wetlands may be well suited for purifying contaminated water from saline agriculture and aquaculture or from freshwater-based agriculture in areas subject to increased salinity. However, case studies on the nutrient removal efficiency of halophyte species are scarce, especially for temperate regions. Here we tested the nutrient removal efficiency and ability to store nutrients in aboveground and belowground biomass of three halophyte species, Aster tripolium, Bolboschoenus maritimus subsp. compactus, and Spartina anglica, in a greenhouse microcosm experiment at two salinity levels. Nutrient removal from water differed among the species: Spartina had the highest nitrogen removal, Bolboschoenus and Spartina had the highest phosphorus removal. The species also differed in the allocation of the nutrient uptake. Bolboschoenus had the highest absolute uptake of nitrogen and phosphorus in shoots, whereas Spartina had the highest uptake of nitrogen and phosphorus in roots. The applicability of these three species in constructed saline wetlands depends on the local salinity and water regime.