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. 2024 May;27(5):e14415.
doi: 10.1111/ele.14415.

Reading tea leaves worldwide: Decoupled drivers of initial litter decomposition mass-loss rate and stabilization

Judith M Sarneel  1   2 Mariet M Hefting  2 Taru Sandén  3 Johan van den Hoogen  4 Devin Routh  4   5 Bhupendra S Adhikari  6 Juha M Alatalo  7 Alla Aleksanyan  8 Inge H J Althuizen  9   10 Mohammed H S A Alsafran  7 Jeff W Atkins  11 Laurent Augusto  12 Mika Aurela  13 Aleksej V Azarov  14 Isabel C Barrio  15 Claus Beier  16 María D Bejarano  17 Sue E Benham  18 Björn Berg  19 Nadezhda V Bezler  20 Katrín Björnsdóttir  21 Martin A Bolinder  22 Michele Carbognani  23 Roberto Cazzolla Gatti  24   25 Stefano Chelli  26 Maxim V Chistotin  27 Casper T Christiansen  28   29 Pascal Courtois  30 Thomas W Crowther  4 Michele S Dechoum  31 Ika Djukic  32 Sarah Duddigan  33 Louise M Egerton-Warburton  34 Nicolas Fanin  12 Maria Fantappiè  35 Silvano Fares  36 Geraldo W Fernandes  37   38 Nina V Filippova  39 Andreas Fliessbach  40 David FuentesRoberto Godoy  41 Thomas Grünwald  42 Gema Guzmán  43   44 Joseph E Hawes  45   46   47 Yue He  48   49 Jean-Marc Hero  50   51 Laura L Hess  46 Katja Hogendoorn  52 Toke T Høye  53 Wilma W P Jans  54 Ingibjörg S Jónsdóttir  55 Sabina Keller  56 Sebastian Kepfer-Rojas  16 Natalya N Kuz'menko  57 Klaus S Larsen  16 Hjalmar Laudon  58 Jonas J Lembrechts  59 Junhui Li  60   61 Jean-Marc Limousin  62 Sergey M Lukin  63 Renato Marques  64 César Marín  65 Marshall D McDaniel  66 Qi Meek  67 Genrietta E Merzlaya  27 Anders Michelsen  28   68 Leonardo Montagnani  69   70 Peter Mueller  71   72 Rajasekaran Murugan  73   74 Isla H Myers-Smith  75   76 Stefanie Nolte  77   78 Raúl Ochoa-Hueso  79 Bernard N Okafor  80 Vladimir V Okorkov  63 Vladimir G Onipchenko  81 María C Orozco  82 Tina Parkhurst  83 Carlos A Peres  77 Matteo Petit Bon  84   85   86 Alessandro Petraglia  23 Martin Pingel  87 Corinna Rebmann  88 Brett R Scheffers  89 Inger Schmidt  16 Mary C Scholes  90 Efrat Sheffer  91 Lyudmila K Shevtsova  27 Stuart W Smith  92   93 Adriano Sofo  94 Pablo R Stevenson  95 Barbora Strouhalová  96 Anders Sundsdal  92   97 Rafael B Sühs  98 Gebretsadik Tamene  99 Haydn J D Thomas  77 Duygu Tolunay  2 Marcello Tomaselli  23 Simon Tresch  100 Dominique L Tucker  101   102 Michael D Ulyshen  103 Alejandro Valdecantos  104   105 Vigdis Vandvik  9 Elena I Vanguelova  106 Kris Verheyen  107 Xuhui Wang  48 Laura Yahdjian  108   109 Xaris S Yumashev  110 Joost A Keuskamp  2   111
Affiliations

Reading tea leaves worldwide: Decoupled drivers of initial litter decomposition mass-loss rate and stabilization

Judith M Sarneel et al. Ecol Lett. 2024 May.

Abstract

The breakdown of plant material fuels soil functioning and biodiversity. Currently, process understanding of global decomposition patterns and the drivers of such patterns are hampered by the lack of coherent large-scale datasets. We buried 36,000 individual litterbags (tea bags) worldwide and found an overall negative correlation between initial mass-loss rates and stabilization factors of plant-derived carbon, using the Tea Bag Index (TBI). The stabilization factor quantifies the degree to which easy-to-degrade components accumulate during early-stage decomposition (e.g. by environmental limitations). However, agriculture and an interaction between moisture and temperature led to a decoupling between initial mass-loss rates and stabilization, notably in colder locations. Using TBI improved mass-loss estimates of natural litter compared to models that ignored stabilization. Ignoring the transformation of dead plant material to more recalcitrant substances during early-stage decomposition, and the environmental control of this transformation, could overestimate carbon losses during early decomposition in carbon cycle models.

Keywords: citizen science; environmental drivers; global change; litter decomposition; mass loss; soil organic matter formation; stabilization; tea bag index.

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References

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