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Hydrotheek

Record nummer 2248998
Titel artikel An affordable and reliable assessment of aquatic decomposition: tailoring the Tea Bag Index to surface waters
Auteur(s) Seelen, L.M.S. ; Flaim, G. ; Keuskamp, J. ; Teurlincx, S. ; Arias Font, R. ; Tolunay, D. ; Fránková, M. ; Šumberová, K. ; Temponeras, M. ; Lenhardt, M. ; Jennings, E. ; Senerpont Domis, L.N. de
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer (2019)151
Paginering 31 - 43
Online full text
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Litter decomposition is a vital part of the global carbon cycle as it determines not only the amount of carbon to be sequestered, but also how fast carbon re-enters the cycle. Freshwater systems play an active role in the carbon cycle as it receives, and decomposes, terrestrial litter material alongside decomposing aquatic plant litter. Decomposition of organic matter in the aquatic environment is directly controlled by water temperature and nutrient availability, which are continuously affected by global change. We adapted the Tea Bag Index (TBI), a highly standardized methodology for determining soil decomposition, for lakes by incorporating a leaching factor. By placing Lipton pyramid tea bags in the aquatic environment for 3 h, we quantified the period of intense leaching which usually takes place prior to litter (tea) decomposition. Standard TBI methodology was followed after this step to determine how fast decomposition takes place (decomposition rate, k1) and how much of the material cannot be broken down and is thus sequestered (stabilization factor, S). A Citizen Science project was organized to test the aquatic TBI in 40 European lakes located in four climate zones, ranging from oligotrophic to hypereutrophic systems.
Betrokken instanties Nederlands Instituut voor Oecologisch Onderzoek NIOO, KNAW
WUR
Universiteit Utrecht
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