Title:
Main Experiment: Carbon, Nitrogen, Phosphorus in leaves (Site A)
Access rights:
Free within projects
Usage rights:
No information available
Published:
Master Thesis Peters F. (2015): Can diversity overcome nutirent limitation in a young afforested stand in sub-tropical China; Chair of Silviculture; Faculty of Environment and Natural Resources, Albert-Ludwigs Universität Freiburg im Breisgau, Germany.
Abstract:
Leaves of eight species (see 'taxonomic extent') were sampled from 71 plots on site A of the BEF China Main Experiment at Xingangshan, Dexing County, PR of China.
Per plot 1 to 16 individuals were sampled and samples were analyzed for P, C and N contents. This dataset is part of a master thesis (see below) that aimed at investigating whether tree diversity can overcome the effects of nutrient limitation on forest growth in young afforested tree communities. Therefore it is in close interjunction with the datasets on soil nutrient status in the respective sampling sites (http://china.befdata.biow.uni-leipzig.de/datasets/331; http://china.befdata.biow.uni-leipzig.de/datasets/561).
In cases where little material was available, emphasis was put on the measurement of P contents.
Design:
Leaves were dried at 40°C and finely ground. Carbon and Nitrogen was measured after dry combustion with a Elemental Analyzer truspec, Leco, St. Joseph, MI, USA; Phosphorus was measured after digestion with concentrated nitric acid with the molydenum-blue method (Murphy and Riley, 1962)
Spatial extent:
The experimental study plot Site A is located near the village Xingangshan in Dexing County near to Jiangxi province and was planted spring 2009.
Temporal extent:
Leaves were sampled 2013
Taxonomic extent:
Castanea henryi
Castanopsis sclerophylla
Quercus serrata
Choreospondias axillaris
Nyssa sinensis
Liquidambar formosana
Sapindus saponaria
Triardica sebifera
Measurement cirumstances:
No information available
Data analysis:
No information available
Filter:
Dataset column
Name:
Lab identifyer
Definition:
Lab identifyer to allow the identification of the sample in the Lab of Silviculture, University Freiburg, Germany
Unit:
No information available
Datagroup:
Laboratory number of Laboratory of Silviculture in Freiburg
Keywords:
sample identity
Values:
i02892 |
i02861 |
i02862 |
i02863 |
i02891 |
Contributors:
No information available
Dataset column
Name:
Plot
Definition:
Plot
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
Experimental Plot, plot
Values:
E22 |
E23 |
C32 |
E24 |
E31 |
Contributors:
No information available
Dataset column
Name:
Location
Definition:
This column defines the location where the sample has been taken. It ocnsists of the following information: Site-Plot.XX_YY
Where XX is the X position in the planting design of BEF China; YY can be: the YY position in the BEF-China planting design OR a short form of the species growing in this position (if known to the sampling person). If one is interested in the species identity of the respective individual, please refer to the species in the XXYY position given in the census data of Site A in 2013 (http://china.befdata.biow.uni-leipzig.de/datasets/473) or (if shown) to the short species identity in this location identifyer.
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
A-C32.02_10 |
A-C32.02_Nsi |
A-C32.02_Che |
A-C32.02_05 |
A-C32.02_00 |
Contributors:
No information available
Dataset column
Name:
P
Definition:
Phosphorous concentration in leaf material
Unit:
mg/g
Datagroup:
Phosphorus
Keywords:
Phosphorous
Values:
1053.7507 |
1033.9843 |
1030.252 |
1030.25165 |
1033.984 |
Contributors:
No information available
Dataset column
Name:
C
Definition:
Carbon concentration of the leaf samples.
Unit:
perCent
Datagroup:
Carbon
Keywords:
carbon
Values:
45.99 |
46.01 |
44.225 |
45.92 |
46.06 |
Contributors:
No information available
Dataset column
Name:
N
Definition:
Nitrogen concentration of the leaf sample
Unit:
perCent
Datagroup:
Nitrogen
Keywords:
nitrogen
Values:
1.186 |
1.154 |
1.071 |
1.205 |
1.195 |
Contributors:
No information available
No information available
No information available
No information avialable
Filter:
No information available
Filter:
No information available
No information available
No information available
No information available
No information available