Data from: Tree diversity increases carbon stocks and fluxes above but not belowground in a tropical forest experiment
Data files
Feb 12, 2025 version files 20.69 KB
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flux_c_f.csv
10.99 KB
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README.md
3.68 KB
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stock_c_f.csv
6.01 KB
Abstract
The database contains the data and code that support the findings of the above study. Specifically, the database contains data on ten carbon (C) stocks and fluxes, namely aboveground tree C (AGC), tree coarse root C (CRC), coarse woody debris C (CWDC), C in herbaceous biomass (herbaceousC), leaf litter C production (litterC), soil organic C (SOC), leaf litter decomposition, root decomposition, soil microbial biomass C (Cmic), and soil respiration. In addition, we included canopy opening as a co-variable, with potentially important influences on C stocks and fluxes.
Description of the database
The database contains four files:
- README including metadata
- stock_c_f.csv
- flux_c_f.csv
- analysis_C_stocks_fluxes.R
Description of the data files and variables
The files stock_c_f.csv and flux_c_f.csv contain the carbon stock and flux data. For carbon stocks or fluxes that were not measured in a specific plot or period "NA" values are given in the datasets. Below is a description of each variable:
| Variable | Short Name | Long Name | Unit |
|---|---|---|---|
| plot | Plot ID | Plot ID | categorical |
| period | Period | Measurement time/period | categorical |
| plot.size_ha | Plot size | Plot size | ha |
| diversity | Tree diversity | Tree species richness | count |
| agb_c_kg_m2 | AGC | Aboveground tree carbon | kg C m2 |
| crb_c_kg_m2 | CRC | Coarse root carbon | kg C m2 |
| soc_c_kg_m2 | SOC | Total soil organic carbon | kg C m2 |
| soc4_c_kg_m2 | SOC4 | C4-plant derived soil organic carbon | kg C m2 |
| soc3_c_kg_m2 | SOC3 | C3-plant derived soil organic carbon | kg C m2 |
| cmic_µg_cmic_g_soil_dw | Cmic | Microbial biomass | µg Cmic g soil dw-1 |
| agb_c_kg_m2_yr | ∆AGC | Aboveground tree carbon change | kg C m2 yr-1 |
| crb_c_kg_m2_yr | ∆CRC | Coarse root carbon change | kg C m2 yr-1 |
| cwd_c_kg_m2_yr | CWDC | Coarse woody debris carbon | kg C m2 yr-1 |
| herb_c_kg_m2_yr | HerbaceousC | Herbaceous carbon | kg C m2 yr-1 |
| litter_prod_c_kg_m2_yr | LitterC | Litter production | kg C m2 yr-1 |
| soc_c_kg_m2_yr | ∆SOC | Total soil organic carbon change | kg C m2 yr-1 |
| soc4_c_kg_m2_yr | ∆SOC4 | C4-plant derived soil organic carbon change | kg C m2 yr-1 |
| soc3_c_kg_m2_yr | ∆SOC3 | C3-plant derived soil organic carbon change | kg C m2 yr-1 |
| litter_k_yr | k | Leaf litter decomposition rate | k yr-1 |
| root_k_yr | k | Root decomposition rate | k yr-1 |
| soil_resp | Soil respiration | Soil respiration | µmol m-2 s-1 |
| cnpy_open_percentage | Canopy opening | Canopy gap fraction | % |
Description of the code
The file analysis_C_stocks_fluxes.R is an R script containing all code needed to reproduce the analyses in the manuscript. It has been created using R version 4.3.0. The used R packages are detailed in the R script.
Data were measured in the Sardinilla tree diversity experiment in Panama (TreeDivNet - Sardinilla (Panama) (ugent.be)) during three periods of plantation development: an early (2001 for SOC and 2005, 2006 & 2007 for the other variables), a mid (2011, 2012 & 2013), and a late period (2016 & 2017). The experiment features 22 plots consisting of monocultures, 2-species, 3-species, and 5-species mixtures of the native tree species Luehea seemannii Triana & Planch (Ls), Anacardium excelsum (Bert. & Balb. Ex Kunth) Skeels (Ae), Hura crepitans L. (Hc), Tabebuia rosea (Bertol.) DC. (Tr), and Cedrela odorata L. (Co). Details on the experimental design and the measurements can be found in the paper.
