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). 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.

PTAG

Main Experiment, location

TAG

The tree position tag is given to a tree individual growing at a specified position in the main experiment. In most cases, this is one tree individual, which is planted there. In case of replanting, more than one individual can be assigned this tree position tag. We still have to discuss how to deal with this situation. They begin with "t" for "tag" and then follow 12 digits...; Datagroup description: Tree or shrub position tag main experiment

t or s TAG Main Experiment

tree individual, object, position

plot

plot number according to design spreadsheet. Plots are named according to their location on the original spreadsheet used for treatment design. This has letters from West to East and numbers from North to south. Some plots were moved half a gridcell (1 mu) so be suitable for planting (grid cell loctype); Datagroup description: Counting the individuals of a given taxon, also called abundance.

Plot name Main experiment (letter, number code)

Main Experiment, location

cell

Number goes from first to last of the 400 individuals in the plot; Datagroup description: Helper

Helper

location

cell_x

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

Tree or shrub position within experimental plot

location

cell_y

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

Tree or shrub position within experimental plot

location

sp_N

Number assigned to the tree species during planting.

Species codes (Species numbers in the Main experiment)

species, taxon

sp_des

Species name, orignially planned species; this may deviate from the species actually found at this position; the latter is given in the column "sp_a"; Datagroup description: Scientific plant species name

Scientific plant species name

species, taxon

sp_a

Actual species found 2010 in the census; Datagroup description: Scientific plant species name

Scientific plant species name

species, taxon

sp_a_ch

Chinese species name of the species found in the 2010 census; Datagroup description: Helper

Helper

species, taxon

hei

plant height measured on 10/06; Datagroup description: Plant height

cm

Plant height

response variable, height, size

suv_l

plant survival status in 10/06. Whether an organism is living or dead

Living status

mortality, living, dead, census

suv_2

plant survival status on 09/11. Whether an organism is living or dead.; Datagroup description: Living status

Living status

response variable, survival

x_DD

X_DD; Datagroup description: Longitude

Longitude

longitude, location

y_DD

Y_DD; Datagroup description: Latitude

Latitude

latitude, location

slope

Slope of the position where the respective individual was found (extrapolated from digital elevation model); Datagroup description: Inclination

Inclination

inclination, co-variable

curv

Curvature of the respective plot. convex (+); concave(-); Datagroup description: Curvature

Curvature

curvature, co-variable

dem

Plot altitude according to the Digital Eleveation Model (DEM); Datagroup description: Elevation

Elevation

elevation, co-variable

asp

Aspect of the plot according to the digital elevation model

Aspect

exposition, co-variable

div

Species diversity level of the respective research plot within the main experiment

Taxonomic biodiversity

species richness, explanatory

succ

Describes in which stage of (secondary) forest succession the respective tree species is typically found

Helper

functional group, species

lifo

Life form, indicating wheter the respecitve species/individual is evergreen or deciduous

Leaf habit

leaf longevity, species

J_day

Julian day of the year, from 1 to 365; Datagroup description: Date time information

Date time information

date