Main Experiment: Site A plots: diversity treatments, coordinates, topography

Usage Rights

This data is Free for members.

Permission is granted to anybody to access, use and publish all open for public data freely. The commercial use of any data is prohibited. The quality and completeness of data cannot be guaranteed. Users employ these data at their own risk. In order to make attribution of use for owners of the data possible, the identifier of ownership of data must be retained with every data record. Users must publicly acknowledge, in conjunction with the use of the data, the data owners. Cite the data as follows: Bruelheide, H., Schmidt, K., Seidler, G. and Nadrowski, K. (2013): Site A plots: diversity treatments, coordinates, topography. BEF-China data portal (Accessed through URL http://china.befdata.biow.uni-leipzig.de/datasets/71)

Dataset Abstract

All plots from site A in the main experiment, their plot names, treatment information, planned richness in trees and shrubs, longitude and latitude and topographic information.

Dataset Design

Describing the A random extinction series along a broken stick random arrangement crossed with an shrub extinction series and replicated once, the B and C broken stick random extinction as well as the two directed extinction series with decreasing SLA (S) and decreasing rareness (R), plus economic treatments (E).
Topographic variables (altitude, inclination, exposition) are mean values based on the 5m GIS.

Spatial Extent

Site A of the Main Experiment

Temporal Extent

Last updated January 2014

Taxonomic Extent

Species information only in comments, this is the plot related data.

Data Analysis

Topographic variables can be used as covariates for plot performance.

Freeformat files (1)

Paper proposal submissions

Published

2015

2014

2013

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). 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
p102361
p103310
p102350
p102340
PLOT_NO
name of each plot, coded with letters and numbers
Data group: Plot name (letter, number code)
Keywords: Main Experiment, Site B
Values
B35
B36/C36
B34
B38/C38
C31
TRTM_SUB
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
10.2
103
10.1
101
102
TRTM_NO2
treatment acronym in experimental sites
Data group: Treatment acronym in experimental sites
Keywords: extinction treatment, Main Experiment, Site B
Values
A_0_1_2
A_1_10_2
A_1_10_1
A_0_1_1
A_0_1_3
TREE_R
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
1
0
2
16
24
SHRU_R
planned shrub 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
4
8
2
1
0
Extinction
extinction series type within the main experiment
Data group: Extinction series type within main experiment.
Keywords: extinction treatment, Main Experiment, Site B
Values
C
A
F
E
B
TREE_CMP
tree 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. davidii_C. carlesii_C. eyrei_C. camphora_C. myrsinaefolia_D. oldhamii_D. glaucifolia_K. bipinnata_L. glaber_M. azedarach_N. sinensis_Q. acutissima_Q. fabri_S. mukorossi_S. discolor_S. superba
A. davidii_C. henryi_C. carlesii_C. eyrei_Ch. axillaris_C. glauca_C. myrsinaefolia_D. glaucifolia_L. formosana_L. glaber_Q. acutissima_Q. fabri_Q. serrata_R. chinensis_S. mukorossi_S. discolor
A. davidii_C. carlesii_L. glaber_M. azedarach
A. davidii
A. davidii_C. carlesii_C. eyrei_C. camphora_C. myrsinaefolia_K. bipinnata_L. glaber_M. azedarach
SHRU_CMP
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_Rh. indica_S. buxifolium
A. crenata
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
MU
indicating the presence of a plot within a 4 mu plot by the number 4, of self contained within a 1 species plot with the number 1, or a partly filled plot, quarter or less, with 0.25
Data group: Plot randomization level in terms of belonging to Extinction series
Keywords: VIP plots, Main Experiment, Site B
Values
4
1
Vip
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
X_DD
longitude of plot south west corner, based on the 5m interpolation
Unit: decimal degree
Data group: Longitude
Keywords: GIS, longitude, Main Experiment, Site B
Values
117.9054242252
117.9055568714
117.9061131432
117.9058221639
117.9052915789
Y_DD
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
29.1208095796
29.1203436753
29.1201107231
29.1210650872
29.1205766274
ALTITUDE
elevation (from interpolated raster); Datagroup description: Elevation above sea level. Altitude.; Datagroup description: Elevation above sea level, altitude.
Unit: meter
Data group: Elevation
Keywords: GIS, elevation, Main Experiment, Site B
Values
112.75
113.22
107.58
108.32
113.12
EASTNESS
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
-0.0260024208
0.0094246919
-0.0134385769
-0.0190228874
-0.0410036845
NORTHNESS
northerly aspect (from aspect of interpolated raster); Datagroup description: Northness was converted from the aspects of 0°-360°, where 0° and 360° = north and 180° = south, into values between -1 and 1, where -1 = south and 1 = north. High values are oriented more northerly than low values.
Data group: Aspect
Keywords: GIS, aspect, northness, Main Experiment, Site B
Values
0.0108207496
-0.0151838611
-0.0132640863
0.0005236255
0.001047117
SLOPE
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
15.12
12.03
14.37
15.15
SOLAR
solar radiation (from interpolated raster); Datagroup description: Solar radiation.; Datagroup description: Solar radiation.
Unit: kWh/m²
Data group: Solar radiation
Keywords: GIS, solar radiation, Main Experiment, Site B
Values
1011300
1035880
1000190
1024000
1029750
CURV_PR
profile curvature (from interpolated raster); convex (+) / concave(-)
Data group: Profile curvature
Keywords: GIS, Main Experiment, Site B, curvature
Values
0.83411
0.40073
0.09795
0.2224
-0.4415
CURV_PL
plan curvature (from interpolated raster); convex (+) / concave(-)
Data group: Planar curvature
Keywords: GIS, Main Experiment, Site B, curvature
Values
-0.17251
-0.05556
0.10965
0.14015
-0.20238
REMARKS
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
missing Treatment_No2
missing random sheet
planting with problems
moved to I8
rotated