TAG

code for planting locations, 12 digits with "t" in front

Tree or shrub position tag main experiment

Site B, ESP, GIS, tree individual, shrub position

PTAG

plot code, BEF research plot name, 6 digits with "p" in front; Datagroup description: Research plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). There are three main sites for research plots in the BEF Experiment: Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground. Main Experiment plots have a size of 1 mu, which is about 25x25m^2 in horizontal projection. Pilot Study Plots have a size of 1x1 m^2. Research plots on the main experiment have a "p" in front of their IDs and then a 6 digit code: Plots in the main sites A and B are named according to their position in the original spreadsheet, in which they were designed. They consist of 6 digits: _1st digit_: Site (1:A, 2:B), _digit 2and3_: southwards row: as in spreadsheets the rows are named from the top to the bottom; _digit 4 and 5_: westward column: as in the original spreadsheet, but the letters are converted to numbers (A=01, B=02); _6th digit_: indicator, if the plot has been shifted a quarter mu. Example: "p205260": "p" means that this is a plot that is specified. "2" means, that we are at site B. Now the coordinates of the south - west corner: "0526". Since "e" is the fifth letter of the alphabet, this is Plot E26. The last digit "0" means that this plot was not moved by a quarter of a Mu, as some sites in Site B. The 6th digit can also indicate the subplot within the plot. "5", "6", "7", "8" indicate the northwest, northeast, southeast, and southwest quarter plot respectively.

BEF research plot name

Site B, ESP

PLOT_NO

name of each plot, coded with letters and numbers

Plot name (letter, number code)

Site B, ESP

TRTM_NO2

treatment acronym in experimental sites; Datagroup description: The acronym corresponds to the species pool of the random scenario (A, B, C), the directed extinction scenarios (R for rarity, S for SLA), the economic species (E), and free succession plots (F). In site B there is another treatment for genetic variation (G). At the second slot follows tree species richness (0 to 24), at the third slot a successive number for the unique species combination within the species pool. At the fourth and last slot follows information whether this plot is a replicate plot (2) or not (1) of this particular species composition.

Treatment acronym in experimental sites

Site B, ESP, random extinction, extinction treatment

CELL_X

within plot x grid position starting at 0 and ending at 19, starting at south west corner

number

Tree or shrub position within experimental plot

Site B, ESP, species

CELL_Y

within plot y grid position starting at 0 and ending at 19, starting at south west corner

number

Tree or shrub position within experimental plot

Site B, ESP, species

SP_PLANNED

species name, originally planned species; Datagroup description: The scientific species fullnames are based on the "Flora of China" identified by Teng Fang and verified by Helge Bruelheide (trees) and Alexandra Efmeier (herbs). Scientific species names consist of epithet and genus. For identification, the Author name and the year of the publications of the description are required.

Scientific plant species name

Site B, ESP, species, tree individual

SP_CURRENT

species name, current species found, this field is continuously updated; Datagroup description: The scientific species fullnames are based on the "Flora of China" identified by Teng Fang and verified by Helge Bruelheide (trees) and Alexandra Efmeier (herbs). Scientific species names consist of epithet and genus. For identification, the Author name and the year of the publications of the description are required.

Scientific plant species name

Site B, ESP, species, tree individual

X_DD

longitude, based on the 1m interpolation

decimal degree

Longitude

Site B, ESP, GIS, longitude

Y_DD

latitude, based on the 1m interpolation; Datagroup description: "The latitude of a location on the Earth is the angular distance of that location south or north of the Equator" (Wikipedia).

decimal degree

Latitude

Site B, ESP, GIS, latitude

ALTITUDE

elevation (from interpolated raster); Datagroup description: Elevation above sea level. Altitude.

m

Elevation

Site B, ESP, GIS, elevation

ASPECT

aspect (from interpolated raster)

degree

Aspect

Site B, ESP, GIS, aspect

EASTNESS

easterly aspect (from aspect of interpolated raster); Datagroup description: Eastness was converted from the aspects of 0°-360°, where 0° and 360° = north and 180° = south, into values between -1 and 1, where -1 = west and 1 = east. High values are oriented more easterly than low values.

Aspect

Site B, ESP, GIS, aspect, eastness

NORTHNESS

northerly aspect (from aspect of interpolated raster); Datagroup description: Northness was converted from the aspects of 0°-360°, where 0° and 360° = north and 180° = south, into values between -1 and 1, where -1 = south and 1 = north. High values are oriented more northerly than low values.

Aspect

Site B, ESP, GIS, aspect, northness

SLOPE

slope (from interpolated raster); Datagroup description: Inclination "is the angular distance of the orbital plane from the plane of reference (usually the primary's equator or the ecliptic), normally stated in degrees" (Wikipedia). Also referred to as 'slope'.

degree

Inclination

Site B, ESP, GIS, inclination

SOLAR

solar radiation (from interpolated raster); Datagroup description: Solar radiation.

kWh/m²

Solar radiation

Site B, ESP, GIS, solar radiation

CURV_PR

profile curvature (from interpolated raster); convex (+) / concave(-)

Profile curvature

Site B, ESP, GIS, curvature

CURV_PL

plan curvature (from interpolated raster); convex (+) / concave(-)

Planar curvature

Site B, ESP, GIS, curvature

SEED_FAM

seed family; Datagroup description: Seed family identity.

Seed family identity

Site B, ESP, genetic diversity, ancestry

NURSERY

nursery, where the plant came from

Nursery

Site B, ESP, nusery

PHYTOM

is phytometer; true; Datagroup description: Is Phytometer?

Phytometer

Site B, ESP, phytometer

REMARKS

remarks mostly concerning planting, situation found in this particular position; Datagroup description: Helper column to understand other columns in this data set.

Helper