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Title:
CSPs: living or killed trees after the 2008 ice storm
Access rights:
Private
Usage rights:
No information available
Published:
No information available
Abstract:
During the 2008 ice storm, large parts of the Gutianshan Nature Park were effected. Comparative study sites (CSPs) were selected in sites with overall low damage from the ice storm. Here we list tree stems that were either living, or killed by the ice storm based on field work of SP1 and SP10. Data are combined from several files, most prominently "Coarse woody debris (CWD): Collection of data on dead wood with special regard to the 2008 ice storm", "Tree stem reference list for the Comparative Study Sites (CSPs)", and "Tree size in the CSPs in 2008 and 2009 ". The dataset also includes estimated mortality risk based on a three Parameter Rickerts function and the residuals resulting from that model.
Design:
"In the 30x30m CSPs the central of 9 subplots was mapped in greater detail than the remaining 8 plots, resulting in more tree stems <10cm in the central plot only. We checked for duplicated stems based on the stemID. There is an attached files with an R script, with which the data were generated. ---- We used the Power Rickerts function (Bolker 2007) to estimate size dependent mortality due to the ice storm for all individuals. The function describes a uni-modal curve through the origin and returning to zero mortality risk for very large individuals: p=(p ) ̂(x/x ̂ e^((1-x/x ̂ )^α ) ) The three parameters of the Power Rickerts function are maximum mortality ((p ) ̂), diameter at maximum mortality (x ̂), and a scaling factor increasing the slope of the curve reaching maximum mortality (α). We used Bayesian inference and Gibbs Sampling via Markov Chain Monte Carlo (JAGS: Plummer, 2003) with uninformative priors to derive mortality risk estimates for each tree individual and to estimate model parameters and their confidence intervals.
Spatial extent:
Comparative Study sites, BEF China Experiment, Gutianshan, China 29°08'-29°17'N 118°02'-118°11'E
Temporal extent:
Living stems in 2008, killed stems in 2008 and early 2009.
Taxonomic extent:
Tree species names as in the reference list for tree species.
Measurement cirumstances:
No information available
Data analysis:
Use this file to extrapolate tree mass before and after the ice storm.

Filter:
Dataset column

Name:
CWD_CSP
Definition:
coarse woody debris item; Datagroup description: Woody debris items
Unit:
No information available
Datagroup:
Woody debris items
Keywords:
woody debris, object
Values:
CSP01_12
CSP01_16
CSP01_11
CSP01_1
CSP01_10
Contributors:
No information available

Dataset column

Name:
CSP
Definition:
name of the CSP in the Nature Reserve BEF research plot nameReasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). There are three main sites for research plots in the BEF Experiment: 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
CSP05
CSP01
CSP02
Contributors:
No information available

Dataset column

Name:
BD
Definition:
basal diameter; Datagroup description: Basal diameter; Datagroup description: Basal diameter
Unit:
centimeter
Datagroup:
Basal diameter
Keywords:
response variable, basal diameter, size
Values:
10
11
11.5
12.5
12
Contributors:

Dataset column

Name:
DBH
Definition:
diameter at breastheight, those with column "to_estimate" == TRUE are estimated from BD; Datagroup description: 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, size
Values:
10
10.1
10.06
10.02
10.03
Contributors:

Dataset column

Name:
species
Definition:
species name; Datagroup description: 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, explanatory
Values:
Actinidia spec.
Acer amplum
Acer cordatum
Alangium kurzii
Adinandra millettii

Dataset column

Name:
stemID
Definition:
stem identifier, don't change this number; Datagroup description: Tree identifier for trees in the comparative study sites (CSP plus Silver ID); Datagroup description: Tree identifier for trees in the comparative study sites (CSP plus Silver ID)
Unit:
No information available
Datagroup:
Tree identifier for trees in the comparative study sites (CSP plus Silver ID)
Keywords:
stem, object
Values:
CSP01_363041_1
CSP01_363060_1
CSP01_362568_1
CSP01_363012_1
CSP01_363013_1
Contributors:

Dataset column

Name:
dead
Definition:
living status; Datagroup description: Living status; Datagroup description: Living status
Unit:
No information available
Datagroup:
Living status
Keywords:
response variable, survival
Values:
d
l
Contributors:

Dataset column

Name:
broken
Definition:
indicating if a living stem has a broken top; Datagroup description: Living status
Unit:
No information available
Datagroup:
Living status
Keywords:
response variable, ice storm, stem break
Values:
broken
folded
fallen
Contributors:

Dataset column

Name:
to_estimate
Definition:
rows for which dbh had to be estimated; Datagroup description: Helper; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
FALSE
TRUE
Contributors:
No information available

Dataset column

Name:
dbh_estimate
Definition:
estimate of DBH based on basal diameter; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
11.9802948948491
11.1752782138447
10.3702615328402
1.27357303749016
10.7727698733424
Contributors:
No information available

Dataset column

Name:
broken_dead
Definition:
Indicating of a stem is either broken or dead: ice_storm$broken_dead = ice_storm$dead == "d" | ice_storm$broken %in% c("broken", "fallen", "folded"); Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
TRUE
FALSE
Contributors:
No information available

Dataset column

Name:
prob_mort_mean_broken
Definition:
breaking probability as estimated by a Ricker three parameter function
Unit:
No information available
Datagroup:
Stem breaking probability
Keywords:
response variable, ice storm, stem break
Values:
0.013672570310701
0.0102718561269259
0.0100094925474557
0.00657164701226831
0.0160756088702533
Contributors:
No information available

Dataset column

Name:
prob_mort_lqu_broken
Definition:
lower quartile of stem breaking probability
Unit:
No information available
Datagroup:
Stem breaking probability
Keywords:
No information available
Values:
0.00565984000473404
0.00165608015098869
0.00514386778822728
0.00452003466581148
0.00294539441394437
Contributors:
No information available

Dataset column

Name:
prob_mort_uqu_broken
Definition:
upper quartile of stem breaking probability
Unit:
No information available
Datagroup:
Stem breaking probability
Keywords:
No information available
Values:
0.030589560541687
0.0306945346553503
0.017803097120899
0.0170306740567706
0.0238704082580321
Contributors:
No information available

Dataset column

Name:
mort_res_broken
Definition:
residuals from the breaking probability to the incidence of breaking or not breaking of a stem; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
-0.00657164701226831
-0.0160756088702533
-0.0100094925474557
-0.013672570310701
-0.0102718561269259
Contributors:
No information available

Dataset column

Name:
mort_rank_broken
Definition:
ranked residuals from estimated breaking probability. This measure is used for the mixed models in the ice storm paper; negative ranks were negetive deviations, positive ranks positive deviation from expected breaking risk; Datagroup description: Helper
Unit:
No information available
Datagroup:
Helper
Keywords:
response variable, ice storm, stem break
Values:
0
-1002.5
-1000.5
-100
-1001.5
Contributors:
No information available

Dataset column

Name:
height
Definition:
mean height form 2008 and 2009 of a living tree. Dead trees are not considered. Data comes from the dataset "Tree size in the CSPs in 2008 and 2009"
Unit:
No information available
Datagroup:
Plant height
Keywords:
response variable, height, size
Values:
1
0.8
0.5
10
10.05
Contributors:

No information available


Filter:
Attachment:

File name:
prepare_dead_alive.r
Description:
R script used to assemble these data from separate data files.
Uri:
No information available
Is essential:
No information available
Content type:
application/octet-stream
File size:
5.45 KB
Created at:
2012-12-17
Updated at:
2013-03-14

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3 nadrowski medium

Karin
Nadrowski

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