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Data Update NutNet workshop July 2016. core data update supplementary & add-on data update data acquisition. NutNet database: core data schema. species occurrences. 169,749 observations 2368 distinct taxon binomials 2937 distinct 1m x 1m plots. Taxon observations.
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Data Update NutNet workshop July 2016 • core data update • supplementary & add-on data update • data acquisition
species occurrences 169,749 observations 2368 distinct taxon binomials 2937 distinct 1m x 1m plots
Taxon observations Connect to site
biomass by functional group 37,527 observations
core data * most commonly missing part of core datasets within year 20% plot-year records missing PAR info
pct_C pct_N ppm_P ppm_K ppm_Ca ppm_Mg ppm_S ppm_Na ppm_Zn ppm_Mn ppm_Fe ppm_Cu ppm_B core data: soil data pre-treatment: 59 sites post-treatment: 31 sites pH PercentSand PercentSilt PercentClay Classification
core data 37,527 observations Michael Anderson: bulk nutrient content matched to 319 values of mass of a category (grass, forb, legume etc) for a plot in a given site-year
supplemental ‘core’ data: climate / weather etc. Nitrogen deposition: site-level deposition rates from global model (Detner et al. 2006) Climate data: site-level characteristics derived from WorldClim / Bioclim dataset (Hijmans et al. 2005); PET and Aridity Index (AI) from CGIAR-CSI RECOMMENDED climate data to use as general covariates:MAT = mean annual temperature (C)TEMP_VAR = standard deviation in temp (NOTE SD not actually VAR despite the name)ANN_TEMP_RANGE = mean annual range in temp (C)TEMP_WET_Q = mean temperature during wettest 4 monthsMAP = mean annual precipitation (mm)MAP_VAR = coefficient of variation of precipitation (=seasonality)
data acquisition comb_byplot_plus_clim_soil_diversity main "combo" dataset at the plot level all core data plus worldclim variables, soil derived diversity stats by plot - simpson's diversity - evenness
data acquisition full_cover
data acquisition full_biomass
data requests: the more specific the better • by email, including specific data fields, sites, and years if any • written, in my notebook • unlikely to be fulfilled due to my addled brain: requests communicated only verbally
NutNet Results are based on your data – QC is critical * Note any data issues as you work * Changes to data should be made in one place. Any changes, updates or deletions necessary to the raw NutNet data should be given in email to Eric Lind elind@umn.edu. * suggestions for further QA / QC procedures are welcome.