Data for: Decomposability of leaf and wood litter are not correlated across species: Effects of litter traits on decomposition in field and laboratory conditions
Data files
Oct 03, 2023 version files 24.70 KB
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dataset.zip
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README.md
Abstract
- Changes in tree species composition have important effects on the overall rate of litter decomposition at a community level because litter decomposability varies among species and between leaf and wood litter. To understand how changes in tree species composition affect litter dynamics and carbon sequestration at the ecosystem level, it is important to clarify interspecific variations in leaf and wood litter decomposability and the traits driving the variation.
- Using field data, field experiments, and laboratory experiments, we explored rates of leaf and wood litter decomposition and their relationships to traits of ten deciduous hardwood species in a temperate forest in Japan. Rates of leaf and wood litter decomposition at the community level were also estimated by considering species-specific litter inputs and decomposition rates.
- Rates of leaf and wood litter decomposition were not correlated under either field or controlled laboratory conditions. This is probably because the traits that affect decomposition rate differ between leaf and wood litter. Interspecific variation in litter decomposability of leaves and wood was generally consistent between field conditions and laboratory experiments using a single fungus, suggesting that the decomposing fungi set the species-specific decomposition rates. Moreover, the leaf and wood traits that affected decomposition by their specific fungi were different. The aboveground input of wood litter was less than half that of leaf litter, but its half-life was >3 times longer, suggesting that wood and leaves make similar contributions to litter accumulation.
- Focusing on either leaf or wood litter alone may produce misleading estimates of how species composition changes affect litter dynamics at the community level. Our results provide insight into predicting the response of carbon dynamics to future climate change.
README: Data for: Decomposability of leaf and wood litter are not correlated across species: Effects of litter traits on decomposition in field and laboratory conditions
Authors
Takuya Kobayashi, Michio Oguro, Hisatomo Taki, Hiroko Kurokawa
File description
dataset.zip
- raw_data/
- sample.data.csv:
- Raw data of samples used for the analyses.
- lab.decomp.test.csv:
- Raw data for the laboratory decomposition experiment.
- sample.data.csv:
- processed_data/
- species.data.csv:
- Species-level statistics calculated from the raw data.
- species.data.csv:
- readme.md:
- This file.
Data
Data-specific information for: 'sample.data.csv'
- Number of columns: 13
- Number of cases: 287
- Description of columns:
- id:
- Sample ID.
- species:
- Species name.
- material:
- Types of material. 'fresh_leaf_litter': freshly fallen leaf, 'field_decomposed_leaf': leaf litter retrieved after the litterbag experiments, 'fresh_wood': wood core samples collected from living trees, 'field_decomposed_wood': wood litter.
- decomp.time.yr:
- Time period of decomposition (year).
- initial.g:
- Initial dry weight of leaf litter for the litterbag experiment (g).
- final.g:
- Final dry weight of retrieved leaf litter for the litterbag experiment (g).
- lma:
- Leaf mass per area of leaf litter (g/m^2).
- density:
- Density of wood cores or wood litter (g/cm^3).
- nitrogen:
- Nitrogen content (percent).
- carbon:
- Carbon content (percent).
- total.phenolics:
- Total phenolics content (percent).
- condensed.tannin:
- Condensed tannin content (percent).
- lignin:
- Lignin content (percent).
Data-specific information for: 'lab.decomp.test.csv'
- Number of columns: 5
- Number of cases: 200
- Description of columns:
- species
- Speceis name.
- material
- Type of material. 'leaf': freshly fallen leaf, and 'wood': wood core samples collected from living trees.
- initial.mg
- Initial dry weight of each sample (mg).
- final.mg
- Final dry weight of each decomposed sample (mg).
- fungus
- Fungal species used in the experiment.
Data-specific information for: 'species.data.csv'
- Number of columns: 19
- Number of cases: 10
- Description of columns:
- species
- Species name.
- k.leaf
- Decomposition constant k for leaf litter decomposition in the litterbag experiment.
- k.wood
- Decomposition constant k for wood decomposition in field.
- lma
- Average leaf mass per area of initial leaf litter for each species (g/m^2).
- nitrogen.leaf
- Average nitrogen content of initial leaf litter for each species (percent).
- carbon.leaf
- Average carbon content of initial leaf litter for each species (percent).
- total.phnolics.leaf
- Average total phenolic content of initial leaf litter for each species (percent).
- condensed.tannin.leaf
- Average condensed tannin content of initial leaf litter for each species (percent).
- lignin.leaf
- Average lignin content of initial leaf litter for each species (percent).
- density
- Average density of wood cores for each species (g/cm^3).
- nitrogen.wood
- Average nitrogen content of wood cores for each species (percent).
- carbon.wood
- Average carbon content of wood cores for each species (percent).
- total.phnolics.wood
- Average total phenolic content of wood cores for each species (percent).
- condensed.tannin.wood
- Average condensed tannin content of wood cores for each species (percent).
- lignin.wood
- Average lignin content of wood cores for each species (percent).
- ml.leaf.trametes
- Average mass loss rate of leaf litter in the laboratory decomposition experiment with Trametes versicolor (percent).
- ml.wood.trametes
- Average mass loss rate of wood cores in the laboratory decomposition experiment with Trametes versicolor (percent).
- ml.leaf.xylaria
- Average mass loss rate of leaf litter in the laboratory decomposition experiment with Xylaraia sp (percent).
- ml.wood.xylaria
- Average mass loss rate of wood cores in the laboratory decomposition experiment with Xylaria sp (percent).