Data from: Trees first inhibit then promote litter decomposition in the subarctic
Data files
Aug 29, 2024 version files 319.11 KB
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Abisko_CN_data.csv
27.67 KB
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Abisko_decomp_data.csv
5.03 KB
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Abisko_fungal_guild_data.csv
9.44 KB
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Abisko_fungi_guilds_yr1-4_data.csv
11.66 KB
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Abisko_fungi_yr1-2_data.csv
68.68 KB
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Abisko_fungi_yr1-2_taxonomy.csv
77.61 KB
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Abisko_fungi_yr4_data.csv
17.56 KB
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Abisko_fungi_yr4_taxonomy.csv
78.78 KB
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Abisko_plants_yr0_4_data.csv
2.30 KB
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Metafile_for_data_files.xlsx
20.04 KB
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README.md
342 B
Aug 29, 2024 version files 319.13 KB
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Abisko_CN_data.csv
27.67 KB
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Abisko_decomp_data.csv
5.03 KB
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Abisko_fungal_guild_data.csv
9.44 KB
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Abisko_fungi_guilds_yr1-4_data.csv
11.66 KB
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Abisko_fungi_yr1-2_data.csv
68.68 KB
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Abisko_fungi_yr1-2_taxonomy.csv
77.61 KB
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Abisko_fungi_yr4_data.csv
17.56 KB
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Abisko_fungi_yr4_taxonomy.csv
78.78 KB
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Abisko_plants_yr0_4_data.csv
2.30 KB
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Metafile_for_data_files.xlsx
20.04 KB
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README.md
356 B
Abstract
Trees affect organic matter decomposition through allocation of recently fixed carbon belowground, but the magnitude and direction of this effect may depend on substrate type and decomposition stage. Here, we followed mass loss, chemical composition, and fungal colonization of leaf and root litters incubated in mountain birch forests over four years, in plots where belowground carbon allocation was severed by tree girdling or in control plots. Initially, girdling stimulated leaf and root litter mass loss by 12 and 22%, respectively, suggesting competitive release of saprotrophic decomposition when tree-mediated competition by ectomycorrhizal fungi was eliminated (Gadgil effect). After four years, girdling instead hampered mass loss of root litter by 30%, suggesting late-stage priming of decomposition in the presence of trees, in parallel with increased growth of shrubs and associated fungi following tree elimination. Hence, different mechanisms driving early- and late-stage litter decomposition should be considered in climate-feedback evaluations of forest expansion.
README: Data from: Trees first inhibit then promote litter decomposition in the subarctic
https://doi.org/10.5061/dryad.k6djh9wgn
Description of the data and file structure
The description of the data can be found in Metafile_for_data_files.xlsx.
Code/software
To view the data, Excel or similar is needed.