DOI: 10.1016/j.watres.2018.11.081
Scopus记录号: 2-s2.0-85058838237
论文题名: An affordable and reliable assessment of aquatic decomposition: Tailoring the Tea Bag Index to surface waters
作者: 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. ; de Senerpont Domis L.N.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 31
结束页码: 43
语种: 英语
英文关键词: Carbon cycle
; Citizen science
; Decomposition constant
; European lakes
; Lake management
; Standardized ecological assay
Scopus关键词: Biomarkers
; Carbon
; Ecosystems
; Environmental regulations
; Eutrophication
; Lakes
; Leaching
; Microorganisms
; Stabilization
; Water conservation
; Carbon cycles
; Citizen science
; Decomposition process
; Face-to-face meetings
; Lake management
; Nutrient availability
; Stabilization factors
; Water Framework Directives
; Decomposition
; surface water
; aquatic environment
; assessment method
; bioassay
; carbon cycle
; carbon sequestration
; decomposition
; global change
; index method
; lacustrine environment
; litter
; microbial community
; nutrient availability
; oligotrophic environment
; organic matter
; surface water
; terrestrial environment
; aquatic environment
; Article
; carbon cycle
; climate
; controlled study
; decomposition
; environmental parameters
; Europe
; eutrophication
; lake
; leaching
; microbial community
; nonhuman
; priority journal
; quantitative analysis
; tea
; tea bag index
; trophic level
英文摘要: 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. We expected that warmer and/or eutrophic lakes would have a higher decomposition rate and a more efficient microbial community resulting in less tea material to be sequestered. The overall high decomposition rates (k1) found confirm the active role lakes play in the global carbon cycle. Across climate regions the lakes in the warmer temperate zone displayed a higher decomposition rate (k1) compared to the colder lakes in the continental and polar zones. Across trophic states, decomposition rates were higher in eutrophic lakes compared to oligotrophic lakes. Additionally, the eutrophic lakes showed a higher stabilization (S), thus a less efficient microbial community, compared to the oligotrophic lakes, although the variation within this group was high. Our results clearly show that the TBI can be used to adequately assess the decomposition process in aquatic systems. Using “alien standard litter” such as tea provides a powerful way to compare decomposition across climates, trophic states and ecosystems. By providing standardized protocols, a website, as well as face to face meetings, we also showed that collecting scientifically relevant data can go hand in hand with increasing scientific and environmental literacy in participants. Gathering process-based information about lake ecosystems gives managers the best tools to anticipate and react to future global change. Furthermore, combining this process-based information with citizen science, thus outreach, is in complete agreement with the Water Framework Directive goals as set in 2010. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122066
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands; Department of Aquatic Ecology and Water Quality Management, Wageningen University & Research, Wageningen, Netherlands; Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1San Michele all'Adige 38010, Italy; Ecology & Biodiversity, Department of Biology, Utrecht University, Netherlands; School of Geography, Earth and Environmental Science, University of Birmingham, Birmingham, B15 2TT, United Kingdom; Limnology Laboratory, Department of Biological Sciences, Middle East Technical University, Çankaya, Ankara, 06800, Turkey; Laboratory of Paleoecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, Brno, 602 00, Czech Republic; Department of Vegetation Ecology, Institute of Botany of the Czech Academy of Sciences, Lidická 25/27, Brno, 602 00, Czech Republic; Environmental Consulting Bureau PlantontaxRy, Denmark; Institute for Biological Research University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11000, Serbia; Centre for Environmental and Freshwater Studies, Department of Applied Sciences, Dundalk Institute of Technology, Dundalk, Ireland
Recommended Citation:
Seelen L.M.S.,Flaim G.,Keuskamp J.,et al. An affordable and reliable assessment of aquatic decomposition: Tailoring the Tea Bag Index to surface waters[J]. Water Research,2019-01-01