LWF-Tea bag sites

Decomposition of plant litter is a key process for the transfer of carbon and nutrients in ecosystems. Carbon contained in the decaying biomass is released to the atmosphere as respired CO2, and may contribute to global warming. Litterbag studies have been used to improve our knowledge of the drivers of litter decomposition, but they lack comparability because litter quality is plant species-specific. The use of commercial tea bags as a standard substrate was suggested in order to harmonize studies, where green tea and rooibos represent more labile and more recalcitrant C compounds as surrogates of local litter. The tea bag approach was implemented on eight sites of the Swiss long-term Forest Ecosystem Research (LWF) network (https://www.wsl.ch/LWF). This allowed us to take advantage from the existing infrastructure and data from a previous litterbag study with local litter. In Beatenberg and Schaenis, additional elevation transects were established (1200-1800 m and 540-1150 m, respectively) to examine particularly the effect of temperature on decomposition. In Pfynwald (https://www.wsl.ch/de/ueber-die-wsl/versuchsanlagen-und-labors/flaechen-im-wald/pfynwald.html) and Salgesch, infrastructure of running projects was used to examine the effect of drought and understory removal, respectively. In Novaggio, tea bags were incubated in summer and winter to study the effect of seasonality particularly precipitation. Tea bags are collected after 3, 12, 24, and 36 months; for the two time-shifted experiments additionally after 6 and 9 months. The study has two primary objectives. Firstly, it contributes to TeaComposition initiative (http://teacomposition.org/) which aims at investigating long-term litter decomposition and its key drivers at present as well as under different future climate scenarios using a common protocol and standard litter (tea) across nine terrestrial biomes. Secondly, the data are used to further develop decomposition models such as Yasso (http://en.ilmatieteenlaitos.fi/yasso) which is used by several countries, including Switzerland to estimate the annual carbon fluxes in dead wood, litter, and soil for reporting in National Greenhouse Gas Inventories under the United Nations Framework Convention on Climate Change and the Kyoto Protocol.

Funding Information:

This work was supported by:
  • WSL


Didion, Markus; Sutter, Flurin; Vollenweider, Pierre; Gessler, Arthur; Waldner, Peter; Schaub, Marcus (2018). LWF-Tea bag sites. Swiss Federal Research Institute WSL. doi:10.16904/envidat.36.

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DOI 10.16904/envidat.36
Publication State Published
  • Email: markus.didionfoo(at)wsl.ch  ORCID: 0000-0003-0346-0646  Given Name: Markus  Family Name: Didion  Affiliation: WSL
  • Email: flurin.sutterfoo(at)wsl.ch  Given Name: Flurin  Family Name: Sutter  Affiliation: WSL
  • Email: pierre.vollenweiderfoo(at)wsl.ch  Given Name: Pierre  Family Name: Vollenweider  Affiliation: WSL
  • Email: arthur.gesslerfoo(at)wsl.ch  Given Name: Arthur  Family Name: Gessler  Affiliation: WSL
  • Email: pater.waldnerfoo(at)wsl.ch  Given Name: Peter  Family Name: Waldner  Affiliation: WSL
  • Email: marcus.schaubfoo(at)wsl.ch  Given Name: Marcus  Family Name: Schaub  Affiliation: WSL
Contact Person Given Name: Marcus  Family Name: Schaub  Email: marcus.schaubfoo(at)wsl.ch  Affiliation: LTER national representative
Publication Publisher: Swiss Federal Research Institute WSL  Year: 2018
  • Type: Created  Date: 2016-01-06
Version 1.0
Type Dataset
General Type Dataset
Language English
Location Switzerland
Content License ODbL with Database Contents License (DbCL)    [Open Data]
Last Updated November 3, 2019, 17:51 (CET)
Created March 29, 2018, 15:23 (CEST)

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