1 / 20

core data update supplementary & add-on data update data acquisition

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.

wadek
Télécharger la présentation

core data update supplementary & add-on data update data acquisition

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Data Update NutNet workshop July 2016 • core data update • supplementary & add-on data update • data acquisition

  2. NutNet database: core data schema

  3. species occurrences 169,749 observations 2368 distinct taxon binomials 2937 distinct 1m x 1m plots

  4. Taxon observations Connect to site

  5. biomass by functional group 37,527 observations

  6. core data * most commonly missing part of core datasets within year 20% plot-year records missing PAR info

  7. 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

  8. 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

  9. 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)

  10. supplemental data: weather (modeled)

  11. supplemental data: weather (modeled)

  12. other data resources: Phylogeny

  13. Add-on data update

  14. data acquisition

  15. 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

  16. data acquisition full_cover

  17. data acquisition full_biomass

  18. 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

  19. 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.

More Related