Stimulating algal growth through wood ash fertilization in the Åkerberg pit lake, northern Sweden

• Published in: Applied Geochemistry
• Main Authors: Paulsson, Oscar, Widerlund, Anders, Conrad, Sarah
• Format: Article in Journal/Newspaper
• Language: English
• Published: Luleå tekniska universitet, Geovetenskap och miljöteknik 2023
• Subjects: Algal growth; Microcosms; Pit lake; Subarctic; Wood ash fertilization; Ecology; Ekologi; Geochemistry; Geokemi; Åkerberg; Northern Sweden
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-96186; https://doi.org/10.1016/j.apgeochem.2023.105616

Fifteen microcosms were installed in the Åkerberg pit lake for 15 days in the summer season (July) 2021. To stimulate algal growth, the microcosms were fertilized with two P-rich wood ashes, and KNO3. Chlorophyll-a was used as an indicator of algal growth while filtered (<0.2 μm) and particulate...