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.; Datagroup description: Reasearch 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 A. 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.
Data group: BEF research plot name
Keywords: Main Experiment, Site B

Values
p102381
p102350
p102340
p102361
p103310

including the number of the 1 mu plot within a 4 mu plot
Data group: Numeric treatment acronyms for the main experiment
Keywords: extinction treatment, Main Experiment, Site B

Values
101
103
102
10.2
10.1

planned tree species richness according to design, taxonomic biodiversity; Datagroup description: Taxon diversity can be given as species richness, or other diversity indices. We also use rarefied species richness, shannon diversity index, and phylogenetic diversity indices. Rarefaction curves show the increase in species number with an increase of sampled individuals. R uses rarefy() from the package vegan to estimated species number for a given number of individuals. To compare different plots, the number of individuals should be smaller than the minimum number of individuals. -- The Shannon diversity is given by H = -sum (p_i log(p_i)), p_i is the relative abundance of the ith species. R provides this through the vegan package: diversity(x). -- The Simpson diversity is given by D = sum p_i^2, with p_i representing the relative abundance of the ith species. R provides this through the vegan package: diversity(x, index="simpson") -- Trees were counted when they exceeded 1m height. This data is aggregated from the raw data provided by Martin Böhnke and Martin Baruffol; in R with vegan: specnumber() -- Eveness as defined by Ricotta, C. A semantic taxonomy for diversity measures Acta Biotheoretica, 2007, 55, 23-33: shannon/log(rich) -- Phylogenetic diversity is calculated using Rao's Q. This is basically the mean distance of all pairswise distances between individuals in phylogenetic space. I used genus and family name to calculate phylogenetic distances between species. R provides Rao's Q and tools for calculating phylogenetic distances in the package ade4. Commands: as.taxo(), divc().
Unit: count
Data group: Taxonomic biodiversity
Keywords: biodiversity, Main Experiment, Site B

Values
24
1
2
0
16

extinction series type within the main experiment
Data group: Extinction series type within main experiment.
Keywords: extinction treatment, Main Experiment, Site B

Values
C
E
F
A
B

shrub species composition according to design; Datagroup description: Helper column to understand other columns in this data set.
Data group: Helper
Keywords: species, Main Experiment, Site B

Values
A. crenata_C. chekiangoleosa_D. buxifolium_D. myricoides_E. myrianthus_E. muricata_G. jasminoides_L. chinense
A. crenata_C. chekiangoleosa_D. buxifolium_D. myricoides_E. muricata_G. jasminoides_L. chinense_S. buxifolium
A. crenata_C. chekiangoleosa_D. buxifolium_D. myricoides_E. muricata_L. chinense_Rh. indica_S. buxifolium
A. crenata
A. crenata_C. chekiangoleosa_D. buxifolium_D. myricoides_E. muricata_G. jasminoides_Rh. indica_S. buxifolium

VIP plots are the plots without shrubs in the 4 mu plots, which are replicated
Data group: VIP plot indication
Keywords: VIP plots, Main Experiment, Site B

Values
vip
viprep

latitude of plot south west corner, based on the 5m 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).
Unit: decimal degree
Data group: Latitude
Keywords: GIS, latitude, Main Experiment, Site B

Values
29.1205766274
29.1208095796
29.1203436753
29.1210650872
29.1201107231

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.
Data group: Aspect
Keywords: GIS, aspect, eastness, Main Experiment, Site B

Values
-0.0190228874
0.0094246919
-0.0260024208
-0.0134385769
-0.0410036845

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'.
Unit: degree
Data group: Inclination
Keywords: GIS, inclination, Main Experiment, Site B

Values
14.42
12.03
15.12
15.15
14.37

profile curvature (from interpolated raster); convex (+) / concave(-)
Data group: Profile curvature
Keywords: GIS, Main Experiment, Site B, curvature

Values
0.09795
0.40073
-0.4415
0.83411
0.2224

remarks mostly concerning planting; Datagroup description: Helper column to understand other columns in this data set.; Datagroup description: Helper column to understand other columns in this data set.
Data group: Helper

Values
moved to I8
rotated
missing Treatment_No2
missing random sheet
planting with problems