Main Experiment: Site A tree census from 2010

Usage Rights

This data is Private.

Dataset Abstract

Site A tree census for mortality in 2010.

Dataset Design

Selected rows (every second or third) of each plot in Site A were controlled for tree seedling survival.

Spatial Extent

Main Experiment Site A

Published

Paper proposal http://china.befdata.biow.uni-leipzig.de/paperproposals/9

Taxonomic Extent

Trees from the Main Experiment

Data Analysis

Data was used to describe mortality rates

Paper proposal submissions

Published

2010

Data columns available in the raw data part of this dataset

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.
Data group: PTAG
Keywords: Main Experiment, location
Values
p103320
p103330
p104310
p102340
p103370
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
Data group: t or s TAG Main Experiment
Keywords: tree individual, object, position
Values
t102340010104
t102340010101
t102340010102
t102340010103
t102340010100
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.
Data group: Plot name Main experiment (letter, number code)
Keywords: Main Experiment, location
Values
D31
C33
C37
B34
C32
cell
Number goes from first to last of the 400 individuals in the plot; Datagroup description: Helper
Data group: Helper
Keywords: location
Values
10
100
1
102
101
cell_x
within plot x grid position starting at 0 and ending at 19, starting at south west corner.
Data group: Tree or shrub position within experimental plot
Keywords: location
Values
03
00
01
02
04
cell_y
within plot x grid position starting at 0 and ending at 19, starting at south west corner.
Data group: Tree or shrub position within experimental plot
Keywords: location
Values
03
04
00
02
01
sp_N
Number assigned to the tree species during planting.
Data group: Species codes (Species numbers in the Main experiment)
Keywords: species, taxon
Values
13
12
10
1
11
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
Data group: Scientific plant species name
Keywords: species, taxon
Values
Acer davidii
Castanopsis sclerophylla
Castanopsis eyrei
Castanea henryi
Castanopsis carlesii
sp_a
Actual species found 2010 in the census; Datagroup description: Scientific plant species name
Data group: Scientific plant species name
Keywords: species, taxon
Values
Castanopsis carlesii
Acer davidii
Castanea henryi
Castanopsis eyrei
Castanopsis sclerophylla
sp_a_ch
Chinese species name of the species found in the 2010 census; Datagroup description: Helper
Data group: Helper
Keywords: species, taxon
Values
山乌桕
南酸枣
乌桕
复羽叶栾树
无患子
hei
plant height measured on 10/06; Datagroup description: Plant height
Unit: cm
Data group: Plant height
Keywords: response variable, height, size
Values
100
1
0
10
101
suv_l
plant survival status in 10/06. Whether an organism is living or dead
Data group: Living status
Keywords: mortality, living, dead, census
Values
d
l
suv_2
plant survival status on 09/11. Whether an organism is living or dead.; Datagroup description: Living status
Data group: Living status
Keywords: response variable, survival
Values
d
l
x_DD
X_DD; Datagroup description: Longitude
Data group: Longitude
Keywords: longitude, location
Values
117.905410960525
117.905384431275
117.905357902025
117.905304843525
117.905331372775
y_DD
Y_DD; Datagroup description: Latitude
Data group: Latitude
Keywords: latitude, location
Values
29.1203669705199
29.1203902657399
29.1203553229099
29.1203436752999
29.1203786181299
slope
Slope of the position where the respective individual was found (extrapolated from digital elevation model); Datagroup description: Inclination
Data group: Inclination
Keywords: inclination, co-variable
Values
10.01706696
10.00399303
10.23156929
10.27308178
10.12603855
curv
Curvature of the respective plot. convex (+); concave(-); Datagroup description: Curvature
Data group: Curvature
Keywords: curvature, co-variable
Values
0.00238037
0.00469971
-0.00405884
-0.00274658
-0.00323486
dem
Plot altitude according to the Digital Eleveation Model (DEM); Datagroup description: Elevation
Data group: Elevation
Keywords: elevation, co-variable
Values
102.32039642
103.67189789
102.38819885
102.22470093
101.16449738
asp
Aspect of the plot according to the digital elevation model
Data group: Aspect
Keywords: exposition, co-variable
Values
0.53536284
0.14058025
0.80321491
0.78785419
0.41549212
div
Species diversity level of the respective research plot within the main experiment
Data group: Taxonomic biodiversity
Keywords: species richness, explanatory
Values
24
4
2
16
1
succ
Describes in which stage of (secondary) forest succession the respective tree species is typically found
Data group: Helper
Keywords: functional group, species
Values
late succ
C succ
early succ
* Fang, T. also contributed to this column.
lifo
Life form, indicating wheter the respecitve species/individual is evergreen or deciduous
Data group: Leaf habit
Keywords: leaf longevity, species
Values
d
e
J_day
Julian day of the year, from 1 to 365; Datagroup description: Date time information
Data group: Date time information
Keywords: date
Values
101
102
105
104
100