DOI: 10.5061/dryad.6hdr7srbf
title: Data from: Tree diversity increases carbon stocks and fluxes above but not belowground in a tropical forest experiment

description: 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: 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 <em>Luehea seemannii</em> Triana & Planch (Ls), <em>Anacardium excelsum</em> (Bert. & Balb. Ex Kunth) Skeels (Ae), <em>Hura crepitans</em> L. (Hc), <em>Tabebuia rosea</em> (Bertol.) DC. (Tr), and <em>Cedrela odorata</em> L. (Co). Details on the experimental design and the measurements can be found in the paper.
description: # Data from: Tree diversity increases carbon stocks and fluxes above but
 not belowground in a tropical forest experiment ## 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.