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Title:
NILEx tracer (wood): wood mass loss data including initial sample characterization
Access rights:
Private
Usage rights:
-
Published:
-
Abstract:
These data were complied related to the question: Is there evidence for lateral N-transport from leaf litter to dead wood? Wood slices of different species (Pinus massonina, Schima superba, Quercus serrata) placed at different divers 15N labeled leaf litter mixture layers (of tree differenzt species: Schima superba, Quercus acutissima, Sapindus mukorossi). Two different decomposition periods were observed. Afterwards the decomposed wood slices were analysed via mass spectrometry regarding to their total N content and their 15N content. Additionally we observed the mass loss of wood samples during the decomposition process.
Design:
Mass loss of wood samples was calculated based on initial sample data for two different periods of decomposition (3 months and 6 months) on leaf litter layer.
Spatial extent:
Subtropical China, near Site A, Xingangshan, Jiangxi
Temporal extent:
Wood slices were placed at 16./17.04.2012 in the field and were harvested at 16.07.2012 (after 3 months) and 07.10.2012 (after 6 months). Dry weight was determined in right after harvest. Afterwards we calculated wood sample mass loss based on initial data.
Taxonomic extent:
Wood species: Pinus massoniana, Quercus serrata, Schima superba
Measurement cirumstances:
No information available
Data analysis:
Parameter of interest was mass loss of wood samples. Therefor we calculated the difference of initial dry weight and dry weight of sample after decomposition period. This value represents the mass loss of wood samples. Afterwards we converted these values into percentage data.

Filter:
Dataset column

Name:
meas.date
Definition:
Date of the measurement
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
2012-04-03
2012-04-05
2012-04-06
2012-04-04
2012-04-07
Contributors:
measurement date of initial freshweight and volum measures date

Dataset column

Name:
species
Definition:
Wood species
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
TracerNILEx, coarse woody debris, wood decomposition
Values:
Quercus serrata
Schima superba
Pinus massoniana
Contributors:
tree species of sampel category

Dataset column

Name:
tree
Definition:
Allows unabiguous identification of the tree from which a respective sample was cut. Can be used e.g. as random factor in an analysis.
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Ind_1
Ind_4
Ind_3
Ind_10
Ind_2
Contributors:
tree individual of which the sample has arisen (tree number 1-4 for Schima superba, tree number 5-6 for Pinus massoniana and tree number 7-10 for Quercus serrata) category

Dataset column

Name:
sample
Definition:
Consecutive Number of sample in the TracerNILEx (Wood).
Unit:
No information available
Datagroup:
Identifier
Keywords:
No information available
Values:
11
12
13
10
1
Contributors:
individual sample from a respective tree species, consecutive within species category

Dataset column

Name:
freshweight
Definition:
Fresh weight (in g) of the respective sample
Unit:
g
Datagroup:
Sample fresh weight
Keywords:
fresh weight, wood decomposition, TracerNILEx
Values:
100.44
100.41
101.28
100.94
100.24
Contributors:
freshweight of undecomposed sample number

Dataset column

Name:
initial.DW
Definition:
Initial dry weight of undecomposed wood samples based on dry weight and fresh weight information of 28 wood samples which were not exposed to decomposition. For each tree species and each tree individual we determined a dry weight/fresh weight ratio. Afterwards we multiply the measured fresh weight of decomposed wood samples by the determined ratio value. So we get the calculated initial dry weight of wood samples which were exposed to decomposition process.
Unit:
g
Datagroup:
Sample dry weight
Keywords:
dry weight
Values:
100.59322127617062
100.29245849611225
100.70541265564414
100.89242363550605
101.26916544708986
Contributors:
No information available

Dataset column

Name:
diam
Definition:
diameter of sample
Unit:
cm
Datagroup:
Woody debris dimensions
Keywords:
No information available
Values:
10.1
10.25
10
10.2
10.15
Contributors:
diameter of sample number

Dataset column

Name:
height1
Definition:
the height of each sample was measured in the 4 quarters of each sample. Height 1 refers to first height measurement
Unit:
mm
Datagroup:
Woody debris dimensions
Keywords:
coarse woody debris
Values:
20.37
20.74
20.59
20.54
19.94
Contributors:
the height of each sample was measured in the 4 quarters of each sample. Height 1 refers to first height measurement number

Dataset column

Name:
height2
Definition:
the height of each sample was measured in the 4 quarters of each sample. Height 2 refers to second height measurement
Unit:
mm
Datagroup:
Woody debris dimensions
Keywords:
No information available
Values:
20.48
19.51
21.21
20.46
20.76
Contributors:
Height 2 refers to second height measurement number

Dataset column

Name:
height3
Definition:
the height of each sample was measured in the 4 quarters of each sample. Height 3 refers to third height measurement
Unit:
mm
Datagroup:
Woody debris dimensions
Keywords:
No information available
Values:
20.99
21.08
20.76
17.59
20.79
Contributors:
Height 3 refers to third height measurement number

Dataset column

Name:
height4
Definition:
the height of each sample was measured in the 4 quarters of each sample. Height 4 refers to fourth height measurement
Unit:
mm
Datagroup:
Woody debris dimensions
Keywords:
No information available
Values:
21.5
21.61
19.99
21.2
21.66
Contributors:
Height 4 refers to fourth height measurement number

Dataset column

Name:
bark_thick_top1
Definition:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the top of the sample.
Unit:
mm
Datagroup:
Bark thickness
Keywords:
bark thickness
Values:
1.36
1.41
1.45
1.43
1.37
Contributors:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the top of the sample number

Dataset column

Name:
bark_thick_top2
Definition:
the bark thickness was measured twice at the top and twice at the bottom on opposite sides of the sample, this is the second measurement on the top of the sample
Unit:
mm
Datagroup:
Bark thickness
Keywords:
bark thickness
Values:
0.76
1.13
1.04
1.12
1.02
Contributors:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the second measurement on the top of the sample number

Dataset column

Name:
heartwood_thick base1
Definition:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the base of the sample
Unit:
mm
Datagroup:
Wood density
Keywords:
heartwood, wood density
Values:
13.65
12.45
12.86
13
13.24
Contributors:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the base of the sample number

Dataset column

Name:
heartwood_thick base2
Definition:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the secondt measurement on the base of the sample
Unit:
mm
Datagroup:
Wood density
Keywords:
heartwood, wood density
Values:
14.11
13.38
13.76
13.45
13.84
Contributors:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the second measurement on the base of the sample number

Dataset column

Name:
bark_thick_base1
Definition:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the base of the sample
Unit:
mm
Datagroup:
Bark thickness
Keywords:
No information available
Values:
1.21
1.06
1.23
0.54
1.28
Contributors:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the base of the sample number

Dataset column

Name:
bark_thick_base2
Definition:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the second measurement on the base of the sample
Unit:
mm
Datagroup:
Bark thickness
Keywords:
No information available
Values:
1
0.95
0.96
0.77
0.71
Contributors:
the bark thickness was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the second measurement on the base of the sample number

Dataset column

Name:
heartwood_thick top1
Definition:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the top of the sample
Unit:
mm
Datagroup:
Wood density
Keywords:
No information available
Values:
13.04
12.03
12.24
12.84
13.07
Contributors:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the first measurement on the top of the sample number

Dataset column

Name:
heartwood_thick top2
Definition:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the second measurement on the top of the sample.
Unit:
mm
Datagroup:
Wood density
Keywords:
No information available
Values:
13.96
14.87
14.5
14.21
14.05
Contributors:
the heartwood thickness (if visible) was measured twice at the top and twitce at the bottom on opposite sides of the sample, this is the second measurement on the top of the sample number

Dataset column

Name:
mesh
Definition:
Mesh size (categorical. c: coarse mesh (7mm mesh width); f: fine mesh (0.25mm mesh width).
Unit:
No information available
Datagroup:
Treatment
Keywords:
mesh size
Values:
c
f
Contributors:
mesh treatment. category

Dataset column

Name:
green_nr
Definition:
individual identifyer of samples in the field
Unit:
No information available
Datagroup:
Identifier
Keywords:
No information available
Values:
NILEX_Wood_2554
NILEX_Wood_2556
NILEX_Wood_2551
NILEX_Wood_2555
NILEX_Wood_2553
Contributors:
individual identifyer of samples in the field category

Dataset column

Name:
deposition_date
Definition:
Date of sample deposition in the field
Unit:
No information available
Datagroup:
time of decomposition
Keywords:
No information available
Values:
2012-04-17
2012-04-16
Contributors:
date of sample deposition in the field date

Dataset column

Name:
Retention.Date
Definition:
date of sample retention in the field
Unit:
No information available
Datagroup:
time of decomposition
Keywords:
No information available
Values:
2012-07-16
2012-10-07
Contributors:
No information available

Dataset column

Name:
decomp_days
Definition:
number of days that the wood sample was in the field
Unit:
No information available
Datagroup:
Exposure time
Keywords:
No information available
Values:
91
173
90
174
Contributors:
number of days that the wood was in the field number

Dataset column

Name:
harvest
Definition:
sample period when the sample was taken out of testing field
Unit:
No information available
Datagroup:
time of decomposition
Keywords:
No information available
Values:
time_1
time_2
Contributors:
sample period when the sample was taken out of testing field category

Dataset column

Name:
FW.sample
Definition:
freshweight of decomposed sample at the time of retention. This was only measured for samples fromt the second sampling period as no meaningful massloss was expected for samples from the first period.
Unit:
g
Datagroup:
Sample fresh weight
Keywords:
No information available
Values:
100.35
102.08
104.48
104.39
103.05
Contributors:
No information available

Dataset column

Name:
date.DW
Definition:
date of dryweight measuremtns of samples after hatvest
Unit:
No information available
Datagroup:
time of decomposition
Keywords:
No information available
Values:
2012-10-17
2012-10-30
2012-10-31
2012-10-15
Contributors:
No information available

Dataset column

Name:
DW.sample
Definition:
dry weight of decomposed sample at the time of harvest
Unit:
g
Datagroup:
Sample dry weight
Keywords:
No information available
Values:
100.67
100.46
101.27
101.16
101.13
Contributors:
No information available

Dataset column

Name:
block-plot
Definition:
localization in the field via block number and plot number, first number = block, after hyphen = plot within block
Unit:
No information available
Datagroup:
Tracer NILEx Plot
Keywords:
No information available
Values:
1-15
1-20
1-11
1-14
1-2
Contributors:
localization in the field via block number and plot number, first number = block, after hyphen = plot within block category

Dataset column

Name:
nights.stored
Definition:
Wether the samples were stored over night (in the fridge). 0: samples were analyszed at the day of retentrion from the field. 1: samples were emasured on the next day.
Unit:
No information available
Datagroup:
Sample quality
Keywords:
No information available
Values:
0
1
Contributors:
number of nights that the samples were stored in plastic zip lock bags after retention from the field and before drying number

Dataset column

Name:
Termites
Definition:
Presence/absence (1/0) Information on termties in the sample
Unit:
No information available
Datagroup:
Organisms found on or in specimen
Keywords:
No information available
Values:
0
1
Contributors:
No information available

Dataset column

Name:
bag.holes
Definition:
denotes if the litter bag had holes at the time of sample retention; 0: no holes; 1: holes present
Unit:
No information available
Datagroup:
Sample quality
Keywords:
No information available
Values:
1
0
Contributors:
denotes if the litter bag had holes at the timeof sampel retention category

Dataset column

Name:
comment
Definition:
comment to the data row
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Borehole
borehole
boreholes
boreholes, was supposed to be 1. harvest
Contributors:
comment to the data row text

Dataset column

Name:
comment2
Definition:
additional comments to the data row
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
1-24 = one piece
1-25 one piece
20% bark lost
25-43 = one piece
27-58 one piece
Contributors:
additional comment to the data row text

Dataset column

Name:
abs.mass.loss
Definition:
absolute mass loss of wood sample, difference between calculated initial dry weight and measured dry weight after decomposition period of each sample.
Unit:
g
Datagroup:
Decomposition
Keywords:
No information available
Values:
0.06019396090459139
-0.09639455446667
0.013517343950844918
0.2516266628568715
0.2557368836791909
Contributors:
absolute mass loss of wood sample, difference between calculated initial dry weight and measured dry weight after decomposition period of each sample. number

Dataset column

Name:
rel.mass.loss
Definition:
relative mass loss of wood sample
Unit:
%
Datagroup:
Decomposition
Keywords:
wood decomposition, massloss
Values:
-0.13488621776876067
0.14421102345851886
0.031780451735359164
0.4519458396466551
0.600231152480102
Contributors:
relative mass loss of wood sample number

No information available


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54 pietsch medium

Katherina
Pietsch

Owner of:
16 Datasets

Involved in:
2 Projects

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14 wirth medium

Christian
Wirth

Owner of:
18 Datasets

Involved in:
6 Projects

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