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Show: CSPs: Coarse woody debris (CWD). Collection of data on dead wood with special...

Title:
CSPs: Coarse woody debris (CWD). Collection of data on dead wood with special regard to the 2008 ice storm
Access rights:
Free for public
Usage rights:
Permission is granted to anybody to access, use and publish all open for public data freely. The commercial use of any data is prohibited. The quality and completeness of data cannot be guaranteed. Users employ these data at their own risk. In order to make attribution of use for owners of the data possible, the identifier of ownership of data must be retained with every data record. Users must publicly acknowledge, in conjunction with the use of the data, the data owners. Cite the data as follows: von Oheimb, G., Nadrowski, K. and Wirth, C.(2013): Coarse woody debris (CWD): Collection of data on dead wood with special regard to the 2008 ice storm. BEF-China data portal (Accessed through URL http://china.befdata.biow.uni-leipzig.de/datasets/204)
Published:
No information available
Abstract:
1) Objectives: -- a) Quantify “undisturbed” state prior to snow break. -- b) Quantify carbon and nitrogen stocks in aboveground CWD as a component of a full carbon and nitrogen budget. -- c) Estimate turnover of CWD carbon depending on species, positioning and mortality i) Indirect carbon balance approach: Calculate deadwood input (I) to the forest floor by combining chronosequence data on woody increment and biomass. Calculate turnover under assumption of equilibrium stocks (M/I) ii) Direct approach: Revisit site after 2 to 3 years and measure position, take a sample to estimate density and volume loss (in-situ observations indicate a progression from a solid log to something substantially decayed within few months). -- d) Compare species-specific sensitivities to snowbreak as a trait i) Calculate the likelihood of being subject to snowbreak given the species, size and potentially the relative position using logistic regression ii) Calculate the likelihood of snag survival; this requires re-sampling iii) Estimate the down-slope transport of deadwood pieces iv) Estimate the time it takes for deadwood to collapse and touch the forest floor ----- File asset Plot_skizze.pdf: plot sketch how the debris objects are selected - File asset sp10 CWD_protocol_Gutianshan_AF_20081215_kn.doc: Inventory protocol, should be included into methods ----- 2) Objective allometries: use some of the downed or alive trees to establish coarse allometries to estimate volume of the remaining intems
Design:
within center plot different from in the outer plots
Spatial extent:
CSPs - Comparative Study Plots, Gutianshan National Nature Reserve 29°08'-29°17'N 118°02'-118°11'E
Temporal extent:
Gutianshan reserve, CSP Plots, Autumn 2008 and following surveys in 2009, dead woody debris
Taxonomic extent:
tree individuals
Measurement cirumstances:
No information available
Data analysis:
one can use it to assess the snowbreak loss and the amount of woody debris; mind that there are extra parts measured of trees labelled "allometries"; these parts should not be included into extrapolation of woody debris mass. Check column descriptions for more information. Ignore the "plotignore" rows, since these are double counted. To combine these data with the data of the living trees, check the dataset on metal tags and coarse woody debris items "Metal tags for coarse woody debris (CWD) items in the CSPs and corresponding metal tags and stem ids from the living tree data.".

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Dataset column

Name:
rownr
Definition:
rownr in the original Excel file; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
1002
1000
10
1001
100
Contributors:
No information available

Dataset column

Name:
date
Definition:
mm/dd/yyyyDate time information; Datagroup description: Date time information
Unit:
date
Datagroup:
Date time information
Keywords:
date
Values:
2008-12-24 00:00:00
2008-09-26 00:00:00
2008-09-28 00:00:00
2008-09-25 00:00:00
2008-12-25 00:00:00
Contributors:
No information available

Dataset column

Name:
Date
Definition:
dd.mm.yyDate time information; Datagroup description: Date time information
Unit:
date
Datagroup:
Date time information
Keywords:
date
Values:
28.9.08
Contributors:
No information available

Dataset column

Name:
start
Definition:
start time of surveyDate time information; Datagroup description: Date time information
Unit:
time of the day
Datagroup:
Date time information
Keywords:
date
Values:
1899-12-30 09:26:00
1899-12-30 09:30:00
1899-12-30 09:20:00
1899-12-30 09:40:00
1899-12-30 09:15:00
Contributors:
No information available

Dataset column

Name:
end
Definition:
end time of surveyDate time information; Datagroup description: Date time information
Unit:
time of the day
Datagroup:
Date time information
Keywords:
date
Values:
1899-12-30 10:02:00
1899-12-30 11:23:00
1899-12-30 11:35:00
1899-12-30 10:00:00
1899-12-30 10:05:00
Contributors:
No information available

Dataset column

Name:
plotignore
Definition:
I renamed the "K21" to plot 19, since the page numbers fitted best. Plot 19 and K21 were like two puzzle pieces in terms of page numbers of the original paper forms; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
location
Values:
k21
Contributors:
No information available

Dataset column

Name:
CSP
Definition:
k21 is CSP21, which was mapped by Christian and Karin, but was remapped by Anja and Thiemo. Some of the tags distributed by Christian were found again by Anja and they are the K? xy tags in the CSP21 observations. The k21 rows should be ignored, since they were remeasured.; 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:
location, CSP
Values:
CSP03
CSP04
CSP02
CSP05
CSP01
Contributors:
No information available

Dataset column

Name:
working condition
Definition:
weather condition on the day of surveyWeather conditions; Datagroup description: Weather conditions
Unit:
No information available
Datagroup:
Weather conditions
Keywords:
weather
Values:
cloudy, all wet and muddy
cloudy
cloudy, some rain drops
cloudy, maybe rain soon
cloudy & little windy
Contributors:
No information available

Dataset column

Name:
protoc.first
Definition:
first name of protocolling personHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Christian
Karin
Anja
Contributors:
No information available

Dataset column

Name:
protoc.sur
Definition:
surname of protocolling personHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Wirth
Fankhaenel
Nadrowski
Contributors:
No information available

Dataset column

Name:
meas.first
Definition:
first name of measuring personHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Tiemo
Christian
Contributors:
No information available

Dataset column

Name:
meas.sur
Definition:
surname of measuring personHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Wirth
Kahl
Contributors:
No information available

Dataset column

Name:
entered.first
Definition:
first name of entering personHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Anja
Contributors:
No information available

Dataset column

Name:
entered.sur
Definition:
sur name of entering personHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Fankhaenel
Contributors:
No information available

Dataset column

Name:
entered.date
Definition:
date of entering dataDate time information; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
2009-02-02 00:00:00
2009-01-29 00:00:00
2008-12-10 00:00:00
2009-01-30 00:00:00
2009-01-28 00:00:00
Contributors:
No information available

Dataset column

Name:
page
Definition:
page number of original data sheet of paperHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
1
3
4
10
2
Contributors:
No information available

Dataset column

Name:
Central_subplot
Definition:
This column indicates whether the data were taken on the whole plot (w) or on the center plot (c). Generally, all items belonging to an object that has a base diameter smaller than 10 cm have been measured in the central plot. Thus, one has to check if the item belongs to other items (CWD_CSP is the same), and then determine the maximal base diameter of the items belonging to that object.
Unit:
No information available
Datagroup:
Subplots within CSPs
Keywords:
location, CSP
Values:
c
w
out
c/w
nn
Contributors:
No information available

Dataset column

Name:
CWD-Id
Definition:
number of recorded individuum, numbered sequentially per object (stem, branch, …) within CSPHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
12
1
10
13
11
Contributors:
No information available

Dataset column

Name:
CWD_CSP_original
Definition:
original ID of woody debris item, combination of the CSP plot name and the CWD_ID; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
CSP01_10
CSP01_1
CSP01_11
CSP01_12
CSP01_13
Contributors:
No information available

Dataset column

Name:
Idaddon
Definition:
part number of individuum, however, Idaddon = 1 is not always the root item of a multi-item object. For this, the identity of the object can be derived from "CWD_CSP" and the item with the widest diameter will be the root item. Tags or mortality causes will mostly only be given for the root item and not for the other items belonging to one debris object.
Unit:
count
Datagroup:
Woody debris part
Keywords:
woody debris, object
Values:
13
11
12
1
10
Contributors:
No information available

Dataset column

Name:
CWD_CSP
Definition:
corrected ID of woody debris item, combination of the CSP plot name and the CWD_ID
Unit:
No information available
Datagroup:
Woody debris items
Keywords:
woody debris, object
Values:
CSP01_13
CSP01_11
CSP01_10
CSP01_1
CSP01_12
Contributors:
No information available

Dataset column

Name:
Species
Definition:
The species is recorded. This requires the help of Mr. Fang. Overly short abbreviations should be avoided. If no identification is possible write “?”; Scientific plant species name;; Datagroup description: Scientific plant species name; Source: Flora of China, Helge Bruelheide (derived from datagroup); Source: Flora of China, Helge Bruelheide (derived from datagroup)
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
species
Values:
Albizia kalkora
Camellia chekiangoleosa
Camellia fraterna
Adinandra millettii
Alniphyllum fortunei
Contributors:

Dataset column

Name:
specunpolished
Definition:
Sepecies UnpolishedHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
:
Camelia chekiang-oleosa
Adinandra milletii
Alniphyllum fortunei
Albizia kalkora
Contributors:

Dataset column

Name:
TagAFCW
Definition:
Silver ID given by Anja, can be given to a woody debris item or to a standing dead tree or snagCSP metal tag number (trees, woody debris); Datagroup description: CSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
object
Values:
370081
369490
370251
370343
371257
Contributors:
No information available

Dataset column

Name:
TagMBa
Definition:
Silver ID given by Martin, in this case the tree was considered alive by Martin, and dead by AnjaCSP metal tag number (trees, woody debris); Datagroup description: CSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
object
Values:
363039
363011
363040
363030
363023
Contributors:
No information available

Dataset column

Name:
TagAFCW original
Definition:
Silver ID given by Anja or Christian, can be given to a woody debris item or to a standing dead tree or snagCSP metal tag number (trees, woody debris), original entry. A "w" in front of a tag means that this object _was_ part of another tree, which has the tag number given. Deleted this, and put the tag number in the crown origin column. "life" means that this object already had a tag, so that it was considered _life_ by Martin Baruffol in 2008.; Datagroup description: CSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
object
Values:
370251
369490
371257
370343
370081
Contributors:
No information available

Dataset column

Name:
TagMBa original
Definition:
Silver ID given by Martin, Anja, or Christian, in this case the tree was considered alive by Martin, and dead by AnjaCSP metal tag number (trees, woody debris). Original data entry. A "w" in front of a tag means that this object _was_ part of another tree, which has the tag number given. Deleted this, and put the tag number in the crown origin column. "life" means that this object already had a tag, so that it was considered _life_ by Martin Baruffol in 2008. "not possible" means that it was not possible to attach a tag to this debris object ---- "K?" means that Anja found this tag on a debris object that might have been tagged by Christian Wirth; Datagroup description: CSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
object
Values:
363039
363030
363023
363011
363040
Contributors:
No information available

Dataset column

Name:
DBH
Definition:
diameter at breast height. It was measured in standing trees, or snags, additional to the basal diameter; Diameter at breast height;; Datagroup description: Diameter at breast height; Instrumentation: diameter tape, calliper (derived from datagroup); Instrumentation: diameter tape, calliper (derived from datagroup)
Unit:
centimeter
Datagroup:
Diameter at breast height
Keywords:
response variable, dbh
Values:
10.5
10.6
10.2
11
10
Contributors:
No information available

Dataset column

Name:
dbh.comment
Definition:
comment on the dbh value; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
copied dbh from crown here, this tree was broken below 1.3 m!
added DBH from Martins data 2008
added DBH from Martins data, Martins tag number is probably wrong: 372276
Contributors:
No information available

Dataset column

Name:
dbhpostmean
Definition:
diameter at breast height posterior mean, extrapolated from basal diameter, if that was not given; Diameter at breast height;; Datagroup description: Diameter at breast height; Instrumentation: diameter tape, calliper (derived from datagroup); Instrumentation: diameter tape, calliper (derived from datagroup)
Unit:
No information available
Datagroup:
Diameter at breast height
Keywords:
response variable, dbh
Values:
12.81658683
10.61072954
10.475998
12.78043313
11.34146407
Contributors:
No information available

Dataset column

Name:
dbhpostsd
Definition:
Uncertainty of the dbh extrapolation (standard deviation of the posterior distribution)Helper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
co-variable
Values:
0.634354914
0.672013674
0.528695707
0.577904292
0.577623616
Contributors:
No information available

Dataset column

Name:
stemsGrEq10
Definition:
Probability that a stem would be considerd greater or equal than 10 given it's basal diameter. If it would be considered greater, it would be counted in the outer subplots of a CSP. If it would not be considered greater than 10, it would not be considered in the outer subplots.Helper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
location
Values:
0.644710579
0.623752495
0.209580838
0.796407186
0.057884232
Contributors:
No information available

Dataset column

Name:
stemsCnSm10
Definition:
Probability that a stem in the central plot would be considered smaller than 10 cm. It would then only be counted in the central subplot as contributing to the biomass.Helper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
location
Values:
0.005988024
0.007984032
0.003992016
0.000998004
0.001996008
Contributors:
No information available

Dataset column

Name:
height
Definition:
height of snag: The height is measured on all upright CWD (i.e. standing dead trees or snags with top broken) but also for the live snags (this is very important!). However, labeled individuals (i. e. live snags) have been measured by Martin Barrufol. In plots with very steep slopes the height may be estimated visually; otherwise a clinometers is used.; Plant height;; Datagroup description: Plant height; Instrumentation: Vertex Forester (derived from datagroup); Instrumentation: Vertex Forester (derived from datagroup)
Unit:
meter
Datagroup:
Plant height
Keywords:
response variable, snag height
Values:
2.4
4
6
2
3.6
Contributors:
No information available

Dataset column

Name:
BD
Definition:
diameter at the base of wood: (dbh: The diameter at breast height is preferably measured with a dbh-tape. For live snags the measurement height is indicated by a white mark made by Martin Barrufol - see dbh for this). For woody debris and deadwood pieces where the breast height cannot be identified, the base and top diameter are recorded.
Unit:
centimeter
Datagroup:
Woody debris dimensions
Keywords:
response variable, basal diameter
Values:
10.3
0.2
10.4
10.2
10
Contributors:
No information available

Dataset column

Name:
lookup tag
Definition:
Silver tag to look up the values of trees from other files; Datagroup description: CSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
object
Values:
363088
363097
363073
363533
336998
Contributors:
No information available

Dataset column

Name:
dbase.remark.kn
Definition:
remark on dbase by Karin, mostly copying those entries that could not be converted to numbersHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
~12.0
~10.0
~11.0
~120.0
~15.0
Contributors:
No information available

Dataset column

Name:
dtop
Definition:
diameter at the top of woodWoody debris dimensions
Unit:
centimeter
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
0.5
10.5
11
10.9
10
Contributors:
No information available

Dataset column

Name:
dtop.remark.kn
Definition:
remark on dtop by Karin, , mostly copying those entries that could not be converted to numbersHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
~21.0
~11.0
~14.0
~10.0
-
Contributors:
No information available

Dataset column

Name:
length
Definition:
length of woodWoody debris dimensions, if this is a stem lying on the ground
Unit:
meter
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
0.6
0.5
0.2
0.3
0.4
Contributors:
No information available

Dataset column

Name:
len.rem.kn
Definition:
remark on length by Karin, mostly copying those entries that could not be converted to numbersHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
nn
so it is broken at 2.5 m height
to be estimated
Contributors:
No information available

Dataset column

Name:
height_length
Definition:
height / length, original data column in which height and length were written into. Height is for a standing tree, length for a tree lying on the ground. The number in height_length that is not either height or length is then the length of a woody debris object part, for example a branch, that can be part of another branch.
Unit:
centimeter
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
0.05
0.12
0.15
0.18
0.1
Contributors:

Dataset column

Name:
hei.len.rem.kn
Definition:
remark on heigtht..length by Karin, mostly copying those entries that could not be converted to numbersHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
~10.50
-
~ 10.00
~10.00
~1.00
Contributors:
No information available

Dataset column

Name:
broken at
Definition:
height at which the stem or snag is broken; extracted from comments; Datagroup description: Woody debris dimensions
Unit:
meter
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
1
1.7
1.5
0.4
1.35
Contributors:
No information available

Dataset column

Name:
broken diam
Definition:
diameter of the stem or snag at the broken point; extracted from comments; Datagroup description: Woody debris dimensions
Unit:
centimeter
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
15
10
Contributors:
No information available

Dataset column

Name:
neigh.label
Definition:
label ID of neighbouring individual: We locate every tagged individual CWD piece. In case of a snag and a broken top we record the position of the snag and also of the bottom part of the broken crown. This is always done in relationship to the nearest or nearby labeled reference tree. The number of this tree (#NN label) is noted as well as the distance (Dist. to NN) to it and the azimuth (Azim to NN) from the reference tree to the CWD piece. In case of logs without a visible base, the part with the largest diameter (or circumference) is used as a base. The position helps us to relocate the logs and also to quantify how fast they travel downslope. Mind that the azimuth may have to be corrected given the date and location, since it depends on the magnetic field of the earth.CSP metal tag number (trees, woody debris); Datagroup description: CSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
location
Values:
336998
363041
363051
363031
349952
Contributors:
No information available

Dataset column

Name:
reference is self
Definition:
label of reference tree is the tree itself, woody debris item belongs to the tree indicated in the reference tree (neighbour label); Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
object
Values:
true
Contributors:
No information available

Dataset column

Name:
neigh.dist
Definition:
distance to neighbour: We locate every tagged individual CWD piece. In case of a snag and a broken top we record the position of the snag and also of the bottom part of the broken crown. This is always done in relationship to the nearest or nearby labeled reference tree. The number of this tree (#NN label) is noted as well as the distance (Dist. to NN) to it and the azimuth (Azim to NN) from the reference tree to the CWD piece. In case of logs without a visible base, the part with the largest diameter (or circumference) is used as a base. The position helps us to relocate the logs and also to quantify how fast they travel downslope. Mind that the azimuth may have to be corrected given the date and location, since it depends on the magnetic field of the earth.
Unit:
meter
Datagroup:
Distance
Keywords:
location
Values:
0.3
0
0.1
0.2
0.25
Contributors:
No information available

Dataset column

Name:
neigh.azimut
Definition:
azimut from neighbour to reference wood: We locate every tagged individual CWD piece. In case of a snag and a broken top we record the position of the snag and also of the bottom part of the broken crown. This is always done in relationship to the nearest or nearby labeled reference tree. The number of this tree (#NN label) is noted as well as the distance (Dist. to NN) to it and the azimuth (Azim to NN) from the reference tree to the CWD piece. In case of logs without a visible base, the part with the largest diameter (or circumference) is used as a base. The position helps us to relocate the logs and also to quantify how fast they travel downslope. Mind that the azimuth may have to be corrected given the date and location, since it depends on the magnetic field of the earth.
Unit:
degree
Datagroup:
Azimuth
Keywords:
location
Values:
0
102
105
10
100
Contributors:
No information available

Dataset column

Name:
direction CWD
Definition:
Direction to woody debris item: The direction a woody debris is aligned from the thick to the thin part of the debris object
Unit:
degree
Datagroup:
Angle
Keywords:
No information available
Values:
1
10
100
0
105
Contributors:
No information available

Dataset column

Name:
pos.cw
Definition:
Positioning information: Type of the woody debris object: Original classification as defined by Christian Wirth and Goddert von Oheimb.; Helper; Dead wood inventory; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
-
2a
1b
1a
2
Contributors:
No information available

Dataset column

Name:
pos.af_original
Definition:
Positioning information as given in the original data sheet. Corrections are in pos.af; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
1 : bow
1
11
10
10+root
Contributors:
No information available

Dataset column

Name:
plot estimate
Definition:
Rows indicating a "no" in plot estimate are not part of the woody debris inventory, but additional data to construct allometries from tree individuals. Often the first entry for an allometry does count as a woody debris item, but the remaining pieces of that item should be ignored and estimated based on the allometries. Or the allometries are not used to extrapolate the biomass of the first item (for example a tree dbh).
Unit:
No information available
Datagroup:
Allometries
Keywords:
allometries
Values:
no
Contributors:
No information available

Dataset column

Name:
pos.af
Definition:
Positioning information: Classification of woody debris item as used by Anja Fankhänel during the inventory, modified from the classification of Christian and Goddert.; Woody debris type; Dead wood inventory
Unit:
No information available
Datagroup:
Woody debris type
Keywords:
woody debris, co-variable
Values:
1
1 : bow
10+root
11
10
Contributors:
No information available

Dataset column

Name:
alive
Definition:
L: still live; may apply to categories 2, 3, 4 of positioning (pos); can be used for live trees that served as donators of broken snags or to include trees that will soon be dead, but still have some green leavesLiving status; Datagroup description: Living status; Datagroup description: if an organism is dead or alive
Unit:
No information available
Datagroup:
Living status
Keywords:
co-variable, mortality
Values:
l
l/d
d
Contributors:
No information available

Dataset column

Name:
sc
Definition:
percent of soil contact of the wood
Unit:
percent
Datagroup:
Soil contact
Keywords:
soil, co-variable
Values:
1
0
100
15
10
Contributors:
No information available

Dataset column

Name:
mc
Definition:
mortality cause
Unit:
No information available
Datagroup:
Mortality cause of downed wood
Keywords:
co-variable, mortality
Values:
2
3
1.3
1
[1]
Contributors:
No information available

Dataset column

Name:
dc
Definition:
decay class of downed wood
Unit:
No information available
Datagroup:
Decay class of downed wood
Keywords:
decomposition, co-variable
Values:
3
0
[1]
1
2
Contributors:
No information available

Dataset column

Name:
ter
Definition:
presence of termites
Unit:
No information available
Datagroup:
Organisms found on or in specimen
Keywords:
termites, co-variable
Values:
Insects
termites (+)
t termites
Contributors:
No information available

Dataset column

Name:
rot
Definition:
presence of red mould
Unit:
No information available
Datagroup:
Organisms found on or in specimen
Keywords:
co-variable, red mould
Values:
white mould
brown mould
red mould (+)
Contributors:
No information available

Dataset column

Name:
fungi
Definition:
presence of fungi
Unit:
No information available
Datagroup:
Organisms found on or in specimen
Keywords:
fungi, co-variable
Values:
fungi (+)
Contributors:
No information available

Dataset column

Name:
valid
Definition:
valid percentage of volume for volume calculation; valid volume: Percent of volume valid for calculation, there may be stumps or woody pieces which are not round, or hallow, or half is missingWoody debris dimensions
Unit:
No information available
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
0.2
0.3
0.1
0.15
0.4
Contributors:
No information available

Dataset column

Name:
crown_origin
Definition:
metal tag of the tree from which the crown originatesCSP metal tag number (trees, woody debris); Datagroup description: CSP tree individuals were marked mostly with metal tags but also additional tags were used. Very few metal tag numbers were double across CSPs. For a unique ID across CSPs see the Data Group "Tree identifier for trees in the comparative study sites". Other projects might have used non metal tags with custom numbers. E. g., white tags might hold numbers defined for additional trees of the SP5 subproject. --- 6 digit metal tags starting with 3 were also used for woody debris items
Unit:
No information available
Datagroup:
CSP metal tag number (trees, woody debris)
Keywords:
location
Values:
363088
363579
363533
363513
363073
Contributors:
No information available

Dataset column

Name:
remark
Definition:
further remarks on this dataHelper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
10% left, termite
20% left
10% left
20% loss, termite
-
Contributors:
No information available

Dataset column

Name:
vol_factor
Definition:
volume factor is about how much is left of the volume of a decaying trunk. So that "valid" refers to the outer form of the item and "vol_factor" is within the object. Both should be multiplied to get the volume of wood.
Unit:
No information available
Datagroup:
Woody debris dimensions
Keywords:
response variable, size
Values:
0.4
0.1
0.2
0.15
0.3
Contributors:
No information available

Dataset column

Name:
Allometrie
Definition:
"allo" indicates that the items (rows) belong to a larger object (same CWD_ID). Together they can be used as allometries for the estimation of other objects. This means, that for example a broken crown is measured with all branches. These branches should be added up to a crown volume and then other crowns can use this estimate, even if only their basal diameter is measured and not all branches.; Datagroup description: Allometries for estimating biomass functions from basal diameter measurements.
Unit:
No information available
Datagroup:
Allometries
Keywords:
allometries
Values:
Allo of multistem!
allo
allo?-living data!
Contributors:
No information available

Dataset column

Name:
comment Karin
Definition:
comment on the whole row; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
Evodia is not found in the species list from Helge; the stem tag is not found in the sp1 biomass file
how can this have a dbh, if it is broken at 40 cm?
dtop was 1.1, but that does not make sense, assume that 1.1 is height
how can this have a dbh if it belongs to the previous standing trunk?
changed pos.af from 8 to 9, since the following entries did not have decay class, species etc, looks like a complete branch measured
Contributors:
No information available

Dataset column

Name:
meandbh
Definition:
merging the dbh column the extrapolated dbh column (dbhpostmean); Diameter at breast height;; Instrumentation: diameter tape, calliper (derived from datagroup); Instrumentation: diameter tape, calliper (derived from datagroup)
Unit:
centimeter
Datagroup:
Diameter at breast height
Keywords:
response variable, dbh
Values:
10.5
10.475998
10
10.6
10.2
Contributors:
No information available

Dataset column

Name:
meanGr10
Definition:
Indicating if the dbh (measured or extrapolated) is greater than 10cm and should be considered in volume estimation in the central and outer subplots.Helper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
location
Values:
1
Contributors:
No information available

Dataset column

Name:
meanSm10Cn
Definition:
Indicating if the dbh (measured or extrapolated) is smaller then 10cm and thus schould only considered in volume estimation of the central subplotHelper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
location
Values:
1
Contributors:
No information available

Dataset column

Name:
ice_storm_representative
Definition:
Indicator for trees that can be considered dead because of the ice storm. This cares for double counting of debris objects. The script "ice_storm_trees.r" shows how this column was derived.; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
object, stem
Values:
yes
no
Contributors:
No information available

No information available


Filter:
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Attachment:

File name:
Plot_skizze.pdf
Description:
plot skizze how the debris objects are selected
Uri:
No information available
Is essential:
No information available
Content type:
application/pdf
File size:
333 KB
Created at:
2012-03-06
Updated at:
2012-03-06

Attachment:

File name:
sp10 CWD_protocol_Gutianshan_AF_20081215_kn.doc
Description:
Inventory protocol, detailled description of debris items and positioning of items
Uri:
No information available
Is essential:
No information available
Content type:
application/msword
File size:
50.5 KB
Created at:
2012-03-06
Updated at:
2012-12-13

Attachment:

File name:
ice_storm_trees.r
Description:
R script that shows how the representative stems for tree mortality through the 2008 ice storm are chosen.
Uri:
No information available
Is essential:
No information available
Content type:
application/octet-stream
File size:
2.61 KB
Created at:
2012-12-13
Updated at:
2012-12-13

No information available
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12 von%20oheimb medium

Goddert
von Oheimb

Owner of:
41 Datasets

Involved in:
3 Projects

E-Mail Profile
14 wirth medium

Christian
Wirth

Owner of:
18 Datasets

Involved in:
6 Projects

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3 nadrowski medium

Karin
Nadrowski

Owner of:
44 Datasets

Involved in:
1 Projects

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