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Title:
CSPs: Leaf toughness of individual trees in the CSPs
Access rights:
Free within projects
Usage rights:
David Eichenberg
Published:
No information available
Abstract:
Leaf toughness assessed on individual trees of species growing in the CSPs in Gutianshan Nature Reserve. 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:
Samples were collected from trees and shrubs in the CSPs of the Gutianshan Nature Reserve with the use of an expandable pruner. Only fully expanded leaves were collected. Seven leaves of the present vegetation period were collected per individual in most of the cases. In some cases, more leaves or, even more seldomly, only 6 leaves could be sampled. The leaves were stored in sealed plastic bags and taken to the lab. On the day of collection these leaves were analysed for leaf tensile strength (i.e. leaf toughness). A segment of the leaves (1-5mm width) was cut out of the specimen, avoiding the midrib and any other major lateral veins. This segment was fixed in two claps of a tearing apparatus (as described in Hendry& Grime, 1993). The mass (in g) needed to rip the segment was recorded using a scale connected to the apparatus. The force was then converted into N/mm as described in Cornellissen et al. (2003).
Spatial extent:
Comparative Study Plots in the Gutianshan Nature Reserve 29°08'-29°17'N 118°02'-118°11'E
Temporal extent:
Sampling excursions in 2012
Taxonomic extent:
Tree species in the CSPs of the Gutianshan Nature Reserve
Measurement cirumstances:
No information available
Data analysis:
Data analysis

Filter:
Dataset column

Name:
Samplecode
Definition:
Combination of characters and number allowing a specific identification of the respective specimen
Unit:
No information available
Datagroup:
Helper
Keywords:
CSP, sample identity, individual
Values:
CSP0-Cyc ste-NoTag-4
CSP0-Cyc ste-NoTag-1
CSP0-Cyc ste-NoTag-3
CSP0-Cyc ste-NoTag-2
CSP0-Cyc ste-NoTag-5
Contributors:
No information available

Dataset column

Name:
TreeID
Definition:
Combination of characters and number allowing a specific identification of the respective tree individual
Unit:
No information available
Datagroup:
Helper
Keywords:
CSP, tree individual
Values:
CSP0-Ill lan-NoTag
CSP0-Ile wil-NoTag
CSP0-Pie jap-NoTag
CSP0-Cyc ste-NoTag
CSP0-Lit elo-NoTag
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 "Staff" header found on the dataportal from the BEF-China Project (http://china.befdata.biow.uni-leipzig.de/). Some persons may be indicated under the subheader "Alumni"
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
David Eichenberg
Contributors:
No information available

Dataset column

Name:
Species
Definition:
Scientific plant species name; Source: Flora of China, Helge Bruelheide
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
species, taxon
Values:
Adinandra millettii
Camellia fraterna
Ardisia crenata
Castanopsis eyrei
Camellia chekiangoleosa
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 independent (e.g. in time series anaysis), if the same individual was sampled in several years
Unit:
No information available
Datagroup:
Date time information
Keywords:
year, explanatory
Values:
2012
Contributors:
No information available

Dataset column

Name:
CSP
Definition:
Number of the Comparative Study Plot; Reasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground.
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP, plant position
Values:
CSP02
CSP01
CSP04
CSP03
CSP05
Contributors:
No information available

Dataset column

Name:
adjacent to
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: Reasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground.
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP, plant position
Values:
way to the mostery
CSP27
Contributors:
No information available

Dataset column

Name:
CSP_Tag
Definition:
6 digit Code given on the silver plate of the respective tree within the CSP; Datagroup description: CSP metal tag number (trees, woody debris);
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
CSP, plant position
Values:
363079
363085
363046
363009
363086
Contributors:
No information available

Dataset column

Name:
4_Digit_ID-CSPs
Definition:
Some individuals within the CSPs were labelled with silver plates displaying 4 digits instead of 6 digits. References can be given by SP01/02c.
Unit:
No information available
Datagroup:
CSPs: 4 digits tree identifier
Keywords:
CSP, plant position
Values:
2976
1627
2961
2209
Contributors:
No information available

Dataset column

Name:
StemID
Definition:
Combination of characters and number allowing a specific identification of the respective tree individual
Unit:
No information available
Datagroup:
Tree identifier for trees in the comparative study sites (CSP plus Silver ID)
Keywords:
CSP, plant position
Values:
CSP02_371238_1
CSP02_371277_1
CSP02_NoTag_1
CSP02_371282_1
CSP01_NoTag_1
Contributors:
No information available

Dataset column

Name:
Indiv_Sample
Definition:
Individual sample (here:leaf) taken from the same individual for the respective analysis; Datagroup description: Identifies individual leaf of the Individuum specieifed in "CSP_Tag" or "4_Digit_ID-CSPs", respectively
Unit:
No information available
Datagroup:
Helper
Keywords:
Leaf tensile strength, individual
Values:
1
4
3
5
2
Contributors:
No information available

Dataset column

Name:
Leaf toughness
Definition:
Leaf toughness; Instrumentation: Tearing apparatus (derived from datagroup); Source: 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); Instrumentation: Tearing apparatus (derived from datagroup); Source: 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:
explanatory, leaf toughness
Values:
0.215743
0.19613
0.2059365
0.2255495
0.1667105
Contributors:
No information available

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David
Eichenberg

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Helge
Bruelheide

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