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percent_plant_cover_by_species.xls
| Variable | Description |
| YEAR | Year of measurement |
| DATE | Date of data collection |
| SITE | Abisko, Toolik, or Svalbard |
| GROUP | STEPPS, Latnjajaure, or Paddus (Abisko, Sweden); Imnavait or Toolik Lake (Alaska, USA); airport, babbling brook, Bjorndalen, Callaghan, fragile site, happy valley, ocean view, river bed, Svalsat, or salt marsh (Svalbard, Norway) |
| PLOT | Individual plot identifier |
| TREAT | Control or fertilized annually (with N and P) |
| PHASE | Measurement series (round of measurements within each year) |
| SPECIES CODE | Six-letter species abbreviation |
| FUNCT GROUP | Functional group classification * |
| NDVI | Average absolute percent cover (%) |
* Functional types are abbreviated as follows:
D = Deciduous shrub
E = Evergreen shrub
F = Forb
G = Grass
GRM = Graminoid
S = Sedge/rush
P = Pteridophte
B = Bryophyte (mosses and liverworts)
L = Lichen
U = Unclassified
W = Waters
R = Rock
X = Litter, bare, or crust
++ = Plus other spp
