Main Experiment: Tree inventory, Site B, 2011-2016

Usage Rights

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SP02e, 2011-2016

Dataset Abstract

This data documents the tree growth parameters for seven years from 2011 to 2016 for site B of the main experiment. Measurements for this data took place at the end of the growing season of deciduous trees, mainly in September and October of each year. Measurements were conducted in the central part (extended core area) of all 1mu-plots in site A. Extended core area is the central 6 * 6 trees in the monoculture and 2-species mixtures (total 36 tree positions per 1mu-plot), the central 12 * 12 trees in the 4-,8-,16-,24-species mixtures (total 144 tree positions per 1 mu-plot). By applying the conventional measuring methods direct in the field, tree position, tree species, total height, stem diameter 5 cm above ground height (gd), the diameter at breast height (dbh), the crown diameters (N-S and E-W) were measured in all years. For the years 2010 to 2013, the distance up to the first branch, the distance up to the longest branch, the diameter, the length, the azimuth and the angle of the longest branch were measured additionally and the number of branches were counted.

Dataset Design

All tree positions in the so called extended core area for each 1mu-plot were surveyed. The extended core area is the central 6 * 6 tree positions in the monocultres and 2-species mixtures (36 tree positions per 1mu-plot) and the central 12 * 12 tree positions in the 4-, 8-, 16- or 24- species mixtures (144 tree positions per 1mu-plot). Note: In 2016 a reduced sample, except for VIP and VIPrep plots, of only the central 6 * 6 tree positions in each plot was measured.

Spatial Extent

This data was collected from site B within the BEF-China experiment, which is located in a hilly subtropical region near Xingangshan Township, Jiangxi Province (29.08-29.11 N, 117.90- 117.93 E), China.

Temporal Extent

During the end of growing season of deciduous tree species. Mainly September and October of each year (2011 to 2016).

Taxonomic Extent

Castanopsis sclerophylla
Cyclobalanopsis glauca
Castanopsis eyrei
Lithocarpus glaber
Schima superba
Cinnamomum camphora
Daphniphyllum oldhamii
Diospyros japonica
Betula luminifera
Castanopsis fargesii
Celtis biondii
Elaeocarpus japonicus
Michilus grijsii
Machilus leptophylla
Manglietia fordiana
Quercus phillyreoides
Alanthus altissima
Alniphyllum fortunei
Elaeocarpus chinensis
Elaeocarpus glabripetalus
Idesia omeiensis
Machilus thunbergii
Meliosma flexuosa
Phoebe bournei

Data columns available in the raw data part of this dataset

TAG
code for planting locations, 12 digits with "t" in front; Datagroup description: Tree or shrub tags consist of 12 digits: The first 6 are the site plot name: _1_ site _2/3_ row, counting from North _4/5_ column, counting from west _6_ is the plot moved? Is it a quarter plot? The next 6 digits describe the tree individual _7/8_ type of individual (01 planned tree, 02 other tree than planted but in a given plot somewhere, 03 planned shrub, 04 other shrub within this plot) _9/10_ x grid position within plot, starting from southwest northwards _11/12 y grid position, starting from southwest eastwards.
Data group: t or s TAG Main Experiment
Keywords: tree individual, location, object
Values
t203270010407
t203270010406
t203270010408
t203270010404
t203270010405
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: BEF research plot name
Values
p204250
p204260
p204280
p203270
p204270
PLOT_NO
PLOT_NO
Data group: Plot name (letter, number code)
Values
D25
D27
D26
D28
C27
TRTM_NO2
TRTM_NO2
Data group: Treatment
Values
A_1_10_2
A_1_10
A_1_11_2
A_1_1
A_1_11
CELL_X
CELL_X
Data group: Position within Main experiment plots
Values
11
14
12
10
13
CELL_Y
CELL_Y
Data group: Position within Main experiment plots
Values
12
11
13
10
14
SPEC_N_
SPEC_N_
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
SPEC_N
SPEC_N
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
TREE_R
TREE_R
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
Extinction
Extinction
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
TREE_CMP
TREE_CMP
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
Vip
Vip
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
pos_x
pos_x
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
pos_y
pos_y
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
X_UTM
Tree location, Easting, UTM Zone 50N, WGS 84, EPSG:32650
Data group: Longitude
Values
590078.854676812
590079.218790628
590079.340161942
590078.976048062
590079.097419336
Y_UTM
Tree location, Northing, UTM Zone 50N, WGS 84, EPSG:32650
Data group: Latitude
Keywords: location
Values
3217598.51178729
3217598.63343821
3217598.1468354
3217598.26848588
3217598.39013651
tree_id
tree_id
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
tree_pos
tree_pos
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
Year
Year
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
Height
the total tree height
Unit: cm
Data group: Height (standing) or lenght (downed) of deadwood
Values
0
100
10
101
1
GD
the mean stem diameter at 5 cm aboveground, calcualted based on gdew and gdns
Unit: cm
Data group: Basal diameter
Keywords: Diameter at the base
Values
0.02
0
0.06
0.01
0.05
DBH
DBH
Data group: DBH
Values
0.2
0.3
0.35
0
0.1
dbh2
dbh2
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
CBH
CBH
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
cwew
cwew
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
cwns
cwns
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sppcode_field
sppcode_field
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sppcode_corrected
sppcode_corrected
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
SpeciesName
SpeciesName
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
date
date
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
comment
comment
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
llong
llong
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
hlong
hlong
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
anlong
anlong
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
azlong
azlong
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
dlong
dlong
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
gdew
gdew
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
gdns
gdns
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
BrDead
BrDead
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
BrAlive
BrAlive
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
broken
broken
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
team
team
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
SpeciesCode
SpeciesCode
Data group: Species codes (Species numbers in the Main experiment)
Values
1
12
11
10
0