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Title:
Main Experiment: Wood stubs of Site A and B: measurement of saw dust from wood samples
Access rights:
Free within projects
Usage rights:
members of the project
Published:
No information available
Abstract:
This piece of data are the weight measurements of the wood samples from the data set: Wood stubs of Site A and B: quantity, density, position and decomposition class Samples were taken in a sub plot in all VIP on both sites A and B. The sub plot was defined as the inner square that is stretched by the planted trees of positions: 06:06, 06:14, 14:06 and 14:14,which is approximately a square with a side length of 10.4 meters. In every Plot for every DC (Decomposition Classes) two wood samples (one with a scope over 63 cm and one witch a scope under 63 cm) had been taken, if these DC with the sizes existed. A hole was drilled with the length of the radius of the stub. The actual depth of the hole was measured. The saw dust was collected and dried at 60 degree celsius. With the weight and the calculated volume of the hole the wood density was measured. The measurements were taken to calculate an explanatory variable for the DC. For further information look in the workbook from the data set: Wood stubs of Site A and B: quantity, density, position and decomposition class
Design:
Samples were taken in a sub plot in all VIP on both sites A and B. The sub plot was defined as the inner square that is stretched by the planted trees of positions: 06:06, 06:14, 14:06 and 14:14,which is approximately a square with a side length of 10.4 meters. Also for every DC two wood samples (one with a scope over 63 cm and one witch a scope under 63 cm) had been taken, if these DC with the sizes existed. For sampling always the first stub that did
Spatial extent:
Main Experiment, Site A and B 29°08'-29°11'N 117°90'-117°93'E Samples were taken in a sub plot in all VIP on both sites A and B. The sub plot was defined as the inner square that is stretched by the planted trees of positions: 06:06, 06:14, 14:06 and 14:14,which is approximately a square with a side length of 10.4 meters. In every Plot for every DC (Decomposition Classes) two wood samples (one with a scope over 63 cm and one witch a scope under 63 cm) had been taken, if these DC with the sizes existed. A hole was drilled with the length of the radius of the stub. The actual depth of the hole was measured. The saw dust was collected and dried at 60 degree celsius. With the weight and the calculated volume of the hole the wood density was measured in two ways. The Density was measured in to ways in the assumption that the hole is shaped like a conus or as a cylinder. The formula for them was: Cone = depth of the hole*radius of the driller^2*pi Cylinder= ((depth of the hole*pi)/3) * (radius of the hole ^2 + radius of the driller* radius of the hole + radius of the driller^2) As unit for the density g/cm^3 was used. density = g/cm
Temporal extent:
No information available
Taxonomic extent:
No information available
Measurement cirumstances:
Are there circumstances that explain the precision of your measurements? Could it be that a sandstorm destroyed part of the plots in a given year?
Data analysis:
he measurements were taken to calculate an explanatory variable for the DC in the data set: Measurement of wood stubs of Site A and B: quantity, density, position and decomposition class

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Dataset column

Name:
number
Definition:
number of the sample equivalent to subsample in the other data set
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
3
4
5
1
2
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
weight
Definition:
weight of the wood
Unit:
g
Datagroup:
Above and below ground biomass measurement
Keywords:
No information available
Values:
10.248
10.089
10.297
10.189
10.109
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
height
Definition:
the depth of the hole that was drilled; Datagroup description: the depth of the hole that was drilled; Instrumentation: caliper
Unit:
cm
Datagroup:
Helper
Keywords:
No information available
Values:
10.5
10.1
10.2
10.4
11
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
diameter
Definition:
measured diameter of the drilled hole
Unit:
cm
Datagroup:
Helper
Keywords:
No information available
Values:
2.3
2.1
2.2
2
2.4
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
damaged_bag
Definition:
was the bag damaged and was replaced
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
0
1
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
sample_quality
Definition:
defines whether sample material was lost into caveats within stump
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
0
1
Contributors:
No information available

Dataset column

Name:
box
Definition:
storage box number
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
1
3
4
5
2
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
site
Definition:
Site where the sample has been taking
Unit:
No information available
Datagroup:
Experimental Site
Keywords:
No information available
Values:
B
A
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
plot
Definition:
plot code where the sample has been taking
Unit:
No information available
Datagroup:
Plot name Main experiment (letter, number code)
Keywords:
plot
Values:
E34
E31
E33
D29
C32
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
Vol_cyl
Definition:
calculated volume of the hole that was drilled. With the assumption that the hole is a cylinder with the base of the drill
Unit:
cubic centimeter
Datagroup:
Volume of an object
Keywords:
No information available
Values:
10.6814150222
10.0530964915
10.7371782918
10.3672557568
10.0444571117
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
Vol_cone
Definition:
calculated volume of the hole that was drilled. With the assumption that the hole is a cone with the base of the drill and the base that is calculated from the measured scope of the hole.
Unit:
cubic centimeter
Datagroup:
Volume of an object
Keywords:
No information available
Values:
10.5641288965
10.3672557568
10.3986716834
10.0530964915
10.2339998685
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
dens_cyl
Definition:
weight / Vol_cyl
Unit:
g/cm³
Datagroup:
Wood density
Keywords:
wood density
Values:
0.038371758000000006
0.044566479000000006
0.0325494181
0.0531238268
0.050583122
Contributors:
These persons could not be matched within the portal: John Anders

Dataset column

Name:
dens_cone
Definition:
weight / Vol_cone
Unit:
g per cubic centimeter
Datagroup:
Wood density
Keywords:
No information available
Values:
0.0455401084
0.0488750207
0.053070159000000006
0.037189291900000004
0.0557357834
Contributors:
These persons could not be matched within the portal: John Anders

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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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