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Title:
BEFmod: crown morphology data Site A 2015
Access rights:
Free within projects
Usage rights:
Private
Published:
No information available
Abstract:
The BEFmod experiment is subject to a manipulation of resource supply and biotic impacts to examine whether Biodiversity-Ecosystem-Functioning (BEF) relationships may change under different environmental influences. BEFmod was conducted on subplots in each VIP plot in the Main Experiment and started in 2014. A total of five subplots (designated A to E) were established on the four northern planting rows of each VIP plot. Each subplot is of an area of 5.16 x 5.16m and contains 4 x 4 tree planting positions. Subplots were randomly assigned to five different treatments: Insecticide application, aboveground fungicide application, phosphorous fertilization, partial weeding and no weeding. Tree crown characteristics strongly determin the magnitude of light capture (Binkley et al. 2013) and have been commonly used to predict tree growth rates (e.g. Pretzsch 2009). Canopy stratification is proposed and also has been evidenced to be one key complementarity mechanism for the positive biodiversity and plant productivity relationship (Menalled et al. 1998, Morin et al. 2011). We, therefore, measured the crown diameter and crown base height of each tree individuals on all subplots in each VIP plot.In line with the objective of BEFmod, we aim to investigate density-dependent and resource-rich based mechanisms affecting the response of canopy characteristics at community level.
Design:
All tree positions on the four northern planting rows of each VIP in site A were surveyed.
Spatial extent:
BEF-China Main Experiment Site A, all VIP Plots.
Temporal extent:
The end of annual growing season of deciduous tree species.
Taxonomic extent:
Castanea henryi Schima superba Choerospondia axillaris Liquidambar formosana Quercus serrata Cyclobalanopsis myrsinifolia Castanopsis carlesii Cyclobalanopsis glauca Lithocarpus glaber Castanopsis sclerophylla Diospyros japonica Daphniphyllus oldhamii Cinnamomum camphora Koelreuteria bipinnata Sapindus mukorossi Nyssa sinensis Triadica sebifera Triadica cochinchinensis Rhus chinensis Quercus fabri Quercus acutissima Melia azedarach Acer davidii Castanopsis fargesii
Measurement cirumstances:
No information available
Data analysis:
No information available

Filter:
Dataset column

Name:
TAG
Definition:
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.
Unit:
No information available
Datagroup:
t or s TAG Main Experiment
Keywords:
tree identifier
Values:
t207280010019
t207280010018
t207280010017
t207280010116
t207280010016
Contributors:
No information available

Dataset column

Name:
plot
Definition:
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.
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
PTAG
Values:
p207280
p213220
p209250
p213070
p210290
Contributors:
Elisabeth Mohrdiek

Dataset column

Name:
barcodePos
Definition:
the grid position of the individual according to Z1/Z2 label
Unit:
No information available
Datagroup:
Position within Main experiment plots
Keywords:
Metal tag number main experiment
Values:
pos0016
pos0018
pos0116
pos0017
pos0019
Contributors:
No information available

Dataset column

Name:
sppcode
Definition:
the species identity recorded in code surveyed in 2014
Unit:
No information available
Datagroup:
Species codes (Species numbers in the Main experiment)
Keywords:
Scientific plant species name
Values:
13
12
11
14
15
Contributors:
Elisabeth Mohrdiek

Dataset column

Name:
cbh
Definition:
the crown base height: The height from the ground to the bottom of the living crown of an individual tree.
Unit:
centimeter
Datagroup:
Crown architectural parameters
Keywords:
crown length, crown morphology, crown base height, crown volume
Values:
10
100
1
101
0
Contributors:
Elisabeth Mohrdiek

Dataset column

Name:
CD_EW
Definition:
the crown diameter measured along the E-W direction
Unit:
centimeter
Datagroup:
Crown architectural parameters
Keywords:
crown diameter, crown morphology, crown volume, crown Dimension, canopy cover
Values:
100
1
102
10
0
Contributors:
No information available

Dataset column

Name:
CD_NS
Definition:
the crown diameter measured along the N-S direction
Unit:
centimeter
Datagroup:
Crown architectural parameters
Keywords:
crown projection area, crown diameter, crown volume, crown Dimension, canopy cover
Values:
1
101
0
10
100
Contributors:
No information available

Dataset column

Name:
BrDead
Definition:
the number of dead branches
Unit:
No information available
Datagroup:
Branch demography
Keywords:
No information available
Values:
0
10
11
12
1
Contributors:
No information available

Dataset column

Name:
BrAlive
Definition:
the number of living branches
Unit:
No information available
Datagroup:
Branch demography
Keywords:
No information available
Values:
105
11
10
1
0
Contributors:
No information available

Dataset column

Name:
broken
Definition:
1 indicates the main stem is broken.
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
1
NA
0
Contributors:
Elisabeth Mohrdiek

Dataset column

Name:
team
Definition:
measuring team
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
t8
t7
t3
t6
t5
Contributors:
Elisabeth Mohrdiek

Dataset column

Name:
date
Definition:
Measuring date (d/dd/mm/yyyy)
Unit:
No information available
Datagroup:
Date time information
Keywords:
No information available
Values:
d15102015
d16102015
d17102015
Contributors:
Elisabeth Mohrdiek

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