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Title:
Main Experiment: Leaf toughness of individual trees in the Main Experiment (Site A and B)
Access rights:
Free for public
Usage rights:
Prof. Helge Bruelheide, David Eichenberg, Wenzel Kröber
Published:
No information available
Abstract:
Leaf toughness assessed on individual trees of species growing on the Experimental Sites of BEF China. For each tree seven leaves were sampled in most cases. Every single value for every leaf is given. Exceptions were made in species with very small leaves (e.g. Loropetalum chinense). Here, we present mean values for every individual from several leaves (indicated in the Column "Individual Sample")
Design:
Leaf samples were taken from sun-exposed branches with an expandable pruner. Only completely developed leaves were sampled, without visible herbivore damage and preferably free of leaf fungi. Seven leaves were collected per individual and the majority of species was sampled in five to seven Plots within the experimental site. Every species was sampled only from one individual per plot, wherever suitable. Rare species had a lower number of individual replicates.
Spatial extent:
Experimental Sites of the BEF China Project 29°08'-29°11'N 117°90'-117°93'E
Temporal extent:
Sampling excursions in 2011 and 2012
Taxonomic extent:
Tree and shrub species in the Main Experiment of BEF China
Measurement cirumstances:
No information available
Data analysis:
Data analysis

Filter:
Dataset column

Name:
Samplecode
Definition:
Identifier; Combination of characters and number allowing a specific identification of the respective specimen within the tested individual
Unit:
No information available
Datagroup:
Helper
Keywords:
sample identity
Values:
Ace_dav_LT_2
Ace_dav_LT_1
Ace_dav_LT_3
Ail_alt_LT_2
Ail_alt_LT_1
Contributors:
No information available

Dataset column

Name:
Sample Collector
Definition:
Indicating the person who collected the sample in the field; these can be contacted via the header "Staff" which is given on the dataportal of the BEF-China project (http://china.befdata.biow.uni-leipzig.de/). Some scientists may also be found under the subheader "Alumin"
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
David Eichenberg
Wenzel Kroeber
Contributors:
No information available

Dataset column

Name:
Species
Definition:
Species name; Datagroup description: Scientific plant species name; Source: Flora of China; Datagroup description: Scientific plant species name
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
species, taxon
Values:
Camellia chekiangoleosa
Alniphyllum fortunei
Betula luminifera
Ailanthus altissima
Acer davidii
Contributors:
No information available

Dataset column

Name:
Year_Collected
Definition:
Additional information on the year when the respective sample was collected; this allows for deciding, whether samples are dependent or independet (e.g. in time series anaysis), if the same individual was sampled in several years.; Datagroup description: Date time information
Unit:
No information available
Datagroup:
Date time information
Keywords:
year, explanatory
Values:
2011
2012
Contributors:
No information available

Dataset column

Name:
Identifier
Definition:
Allows to uniquely identify the respective specimen. This allows to identify the individual from which the respective replicate sample was taken (e.g. if you want to calculate the mean values of a trait for each individual). It can also be used when other people have specific questions about the particular sample.
Unit:
No information available
Datagroup:
Identifier
Keywords:
No information available
Values:
Ace_dav_LT_1
Ace_dav_LT_3
Ail_alt_LT_2
Ace_dav_LT_2
Ail_alt_LT_1
Contributors:
No information available

Dataset column

Name:
Exp_Site
Definition:
Indicator on which site of the Main Experiment (A or B) the Samples were collected
Unit:
No information available
Datagroup:
Experimental Site
Keywords:
Main Experiment, plant position
Values:
B
A
Contributors:
No information available

Dataset column

Name:
Exp_vicinity
Definition:
Some individuals were not sampled within a study plot, but e.g. in close vicinity to this plot. This column gives hints where the respective sample was collected.; Datagroup description: Some samples were not directly sampled within the experimental sites but were young recruits at the outer margin of the sites. This column gives information about where the sample was taken.
Unit:
No information available
Datagroup:
Experimental Site
Keywords:
Main Experiment, plant position
Values:
B
Unknown
Contributors:
No information available

Dataset column

Name:
Exp_Plot
Definition:
Indiciating in which plot within respective the experimental site the sample was taken
Unit:
No information available
Datagroup:
Plot name Main experiment (letter, number code)
Keywords:
Main Experiment, plant position
Values:
E24
E25
E29
F23
F24
Contributors:
No information available

Dataset column

Name:
Exp_Plot_Position
Definition:
4 digit Code gives xxyy position in the experimental plot
Unit:
No information available
Datagroup:
Tree or shrub position within experimental plot
Keywords:
Main Experiment, plant position
Values:
0011
0001
0010
0005
0104
Contributors:
No information available

Dataset column

Name:
TAG
Definition:
TAG given on the barcode labels on every tree individual.
Unit:
No information available
Datagroup:
t or s TAG Main Experiment
Keywords:
No information available
Values:
t106280010512
t106280010608
t106270011701
t106290011814
t106280011811
Contributors:
No information available

Dataset column

Name:
neighbour tree TAG
Definition:
Some of the individuals collected here did not have a tTAG (maybe not yet added or lost due to environmental conditions, e.g. rain or sun). In such cases, the most proximate neighbout was searched and the tTAG was added in order to allow for a coarse location identification of the respective tree.
Unit:
No information available
Datagroup:
t or s TAG Main Experiment
Keywords:
shrub individual, shrub position, shrub
Values:
t206260010303
t205290010209
t205240011718
t206260010204
t206290011103
Contributors:
No information available

Dataset column

Name:
shrub TAG
Definition:
Unique Identifier for the respective shrub individual; can be used to reference the individual to geographical and genetic information on the experimental sites.
Unit:
No information available
Datagroup:
t or s TAG Main Experiment
Keywords:
shrub individual, shrub position, plant position, shrub
Values:
s108270030709
s108280030714
s107270031819
s110280030417
s112210030417
Contributors:
No information available

Dataset column

Name:
Individual Sample
Definition:
Up to seven leaves were sampled per each individual. This column indicates which leaf was tested.
Unit:
No information available
Datagroup:
Helper
Keywords:
tree individual, shrub individual
Values:
2
10
1
14
3
Contributors:
No information available

Dataset column

Name:
Leaf toughness
Definition:
Instrumentation: Hendry, G.A.F. and Grime, J.P. 1993. Methods in comparative plant ecology: a laboratory manual. G. A. F. Hendry, Grime JP, editors. London: Chapman & Hall. 252 p. (derived from datagroup) (derived from datagroup);
Unit:
N/mm
Datagroup:
Leaf toughness
Keywords:
tree individual, shrub individual, explanatory, individual based values, Leaf tensile strength
Values:
0.064
0.054
0.072
0.069
0.074
Contributors:
No information available

No information available


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64 eichenberg medium

David
Eichenberg

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8 bruelheide medium

Helge
Bruelheide

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61 kr%c3%b6ber medium

Wenzel
Kröber

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