BEF-China | Main Experiment: Site B plots: diversity treatments, coordinates, topography

Show: Main Experiment: Site B plots: diversity treatments, coordinates, topography

Title:

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

Access rights:

Free for members

Usage rights:

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 B plots: diversity treatments, coordinates, topography. BEF-China data portal (Accessed through URL http://china.befdata.biow.uni-leipzig.de/datasets/46)

Published:

No information available

Abstract:

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

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). Site B also includes a Genetic diversity treatment (G). Topographic variables (altitude, inclination, exposition) are mean values based on the 5m GIS.

Spatial extent:

Site B of the Main Experiment

Temporal extent:

Last updated January 2014

Taxonomic extent:

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

Measurement cirumstances:

No information available

Data analysis:

Topographic variables can be used as covariates for plot performance.

Filter:

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Dataset column

Name:

PTAG

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). 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.

Unit:

No information available

Datagroup:

BEF research plot name

Keywords:

Main Experiment, Site B

Values:

p204280
p204270
p204250
p203270
p204260

Contributors:

No information available

Dataset column

Name:

PLOT_NO

Definition:

name of each plot, coded with letters and numbers

Unit:

No information available

Datagroup:

Plot name (letter, number code)

Keywords:

Main Experiment, Site B

Values:

D26
C27
D28
D27
D25

Contributors:

No information available

Dataset column

Name:

TRTM_SUB

Definition:

including the number of the 1 mu plot within a 4 mu plot

Unit:

No information available

Datagroup:

Numeric treatment acronyms for the main experiment

Keywords:

extinction treatment, Main Experiment, Site B

Values:

10.3
10.2
102
10.1
101

Contributors:

No information available

Dataset column

Name:

TRTM_NO2

Definition:

treatment acronym in experimental sites

Unit:

No information available

Datagroup:

Treatment acronym in experimental sites

Keywords:

extinction treatment, Main Experiment, Site B

Values:

A_0_1
A_1_11
A_1_10
A_1_10_2
A_1_1

Contributors:

No information available

Dataset column

Name:

TREE_R

Definition:

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

Datagroup:

Taxonomic biodiversity

Keywords:

biodiversity, Main Experiment, Site B

Values:

1
24
16
0
2

Contributors:

No information available

Dataset column

Name:

SHRU_R

Definition:

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

Datagroup:

Taxonomic biodiversity

Keywords:

biodiversity, Main Experiment, Site B

Values:

0
4
8
2
1

Contributors:

No information available

Dataset column

Name:

Extinction

Definition:

extinction series type within the main experiment

Unit:

No information available

Datagroup:

Extinction series type within main experiment.

Keywords:

extinction treatment, Main Experiment, Site B

Values:

F
B
E
A
C

Contributors:

No information available

Dataset column

Name:

TREE_CMP

Definition:

tree species composition according to design; Datagroup description: Helper column to understand other columns in this data set.

Unit:

No information available

Datagroup:

Helper

Keywords:

species, Main Experiment, Site B

Values:

A. altissima_A. fortunei_B. luminifera_C. fargesii_C. biondii_E. chinensis_E. glabripetalus_E. japonicus_I. polycarpa_M. grijsii_M. leptophylla_M. thunbergii_M. yuyuanensis_M. flexuosa_Ph. bournei_Q. phillyreoides
A. altissima
A. altissima_A. fortunei_C. eyrei_C. fargesii_C. sclerophylla_C. biondii_C. camphora_C. glauca_D. oldhamii_D. glaucifolia_E. glabripetalus_L. glaber_M. leptophylla_M. thunbergii_Ph. bournei_S. superba
A. altissima_A. fortunei_C. fargesii_C. sclerophylla
A. altissima_A. fortunei

Contributors:

No information available

Dataset column

Name:

SHRU_CMP

Definition:

shrub species composition according to design; Datagroup description: Helper column to understand other columns in this data set.

Unit:

No information available

Datagroup:

Helper

Keywords:

species, Main Experiment, Site B

Values:

D. buxifolium_F. erecta
D. buxifolium_F. erecta_H. chinensis_I. chinensis_Ph. glaucus_Rh. simsii_S. buxifolium_V setigerum
D. buxifolium
D. buxifolium_F. erecta_H. chinensis_I. chinensis_Ph. glaucus_Rh. ovatum_S. buxifolium_V setigerum
D. buxifolium_F. erecta_H. chinensis_I. chinensis_Ph. hirsuta_Ph. glaucus_Rh. ovatum_Rh. simsii

Contributors:

No information available

Dataset column

Name:

Definition:

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

Unit:

No information available

Datagroup:

Plot randomization level in terms of belonging to Extinction series

Keywords:

VIP plots, Main Experiment, Site B

Values:

1
4

Contributors:

No information available

Dataset column

Name:

Vip

Definition:

VIP plots are the plots without shrubs in the 4 mu plots, which are replicated

Unit:

No information available

Datagroup:

VIP plot indication

Keywords:

VIP plots, Main Experiment, Site B

Values:

vip
viprep

Contributors:

No information available

Dataset column

Name:

X_DD

Definition:

longitude of plot south west corner, based on the 5m interpolation

Unit:

decimal degree

Datagroup:

Longitude

Keywords:

GIS, longitude, Main Experiment, Site B

Values:

117.925751118086
117.925728251548
117.925773984625
117.925796851163
117.925509069086

Contributors:

No information available

Dataset column

Name:

Y_DD

Definition:

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

Datagroup:

Latitude

Keywords:

GIS, latitude, Main Experiment, Site B

Values:

29.083710324555
29.0834581855448
29.0836700757029
29.083690200129
29.0837613694871

Contributors:

No information available

Dataset column

Name:

ALTITUDE

Definition:

elevation (from interpolated raster); Datagroup description: Elevation above sea level. Altitude.

Unit:

meter

Datagroup:

Elevation

Keywords:

GIS, elevation, Main Experiment, Site B

Values:

114.15
107.76
107.04
111.52
108

Contributors:

No information available

Dataset column

Name:

EASTNESS

Definition:

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.

Unit:

No information available

Datagroup:

Aspect

Keywords:

GIS, aspect, eastness, Main Experiment, Site B

Values:

-0.0369924837
0.0366437616
0.0057596082
0.0343762651
0.0129151308

Contributors:

No information available

Dataset column

Name:

NORTHNESS

Definition:

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.

Unit:

No information available

Datagroup:

Aspect

Keywords:

GIS, aspect, northness, Main Experiment, Site B

Values:

-0.0277472533
-0.0291429516
-0.000349039
0.00366521
-0.0272238524

Contributors:

No information available

Dataset column

Name:

SLOPE

Definition:

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

Datagroup:

Inclination

Keywords:

GIS, inclination, Main Experiment, Site B

Values: