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Title:
CSPs:Tree demographical survey in CSPs--sapling individuals
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Free for members
Usage rights:
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Published:
No information available
Abstract:
The survey on the sapling individuals of selected four key species in CSPs fills out the information gap in term of demographical population dynamic analysis. Integrating the census of target trees (including the individuals with larger than 10 cm DBH in subplots 11,21,31,12,32,13,23,33, and individuals with larger than 3 cm DBH in subplot 22 )to this piece of data, the fecundity, recruitment and mortality will be revealed; so that the demographic dynamics of the species over time, and the quantitative assessment of the long-term stability or development of the populations in the successional stages of the forests will be investigated. The sapling individuals among all CSPs in GNNR were surveyed by means of labelling, tree height, tree diameter and tree living status were assessed. Four species were considered as key species of this study: Schima superba, Quercus serrata, Lithocarpus glaber, Castanopsis eyrei because of their high abundances. This inventory was carried out in a half-year interval from April 2011 to April 2012.
Design:
Selection of target species: the two most abundant evergreen and deciduous species were selected. Individuals belonging to these species which are not surveyed by SP1e/SP1c (in most situations saplings and small size trees) were labelled with four digitis before which "2S_" was indicated. Then, the total height and the stem diameters (basal diameter / diameter at breast height) were measured. If the tree individual is not single stem, the number of the stems was counted. The status such as dead, new germinated, broken stem/branch etc. were documented in the column of comments.
Spatial extent:
Comparative Study sites, BEF China Experiment, Gutianshan National Nature Reserve (GNNR), China. The GNNR is located in the western part of Zhejiang Province (29°8'18"-29°17'29" N, 118°2'14'-118°11'12'' E). The forest is representative of Chinese broad-leaved forests (Wu 1980, Hu and Yu 2008, Legendre et al. 2009) with evergreren species dominating the forest in number of individuals (Yu et al. 2001) but with approximately similar proportions of deciduous species in terms of species number (Lou and Jin 2000).
Temporal extent:
During this time frame, the inventory was conducted three times (April 2011, September 2011 and March/April 2012 respectively).
Taxonomic extent:
Sapling tree individuals of Schima superba, Lithocarpus glaber, Quercus serrata and Castanopsis eyrei in all 27 CSPs. If the survey abundance reached to 100 individuals in 22 subplot, the remaining subplots were not further surveyed. If the survey abundance of individuals did not reach to 100 in 22 subplots, other subplots will be randomly selected until the abundance of the collected individuals exceeds 100.
Measurement cirumstances:
No information available
Data analysis:
No information available

Filter:
Dataset column

Name:
CSP
Definition:
CSP
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP, tree demography
Values:
CSP01
CSP04
CSP03
CSP02
CSP05
Contributors:
No information available

Dataset column

Name:
subplot
Definition:
the subplot number within the CSP
Unit:
No information available
Datagroup:
Subplots within CSPs
Keywords:
subplot
Values:
4
5
3
2
1
Contributors:
No information available

Dataset column

Name:
id
Definition:
the tag ID for each individual within one plot; Datagroup description: Across all CSPs, all sapling individuals under four species (Schima superba, Lithocarpus glaber, Quercus serrata, Castanopsis eyrei) were given a 4 digits ID.
Unit:
No information available
Datagroup:
CSPs: 4 digits tree identifier
Keywords:
CSP metal tag number
Values:
0103
0102
0101
0001
0100
Contributors:
No information available

Dataset column

Name:
species
Definition:
the identified species (ScSu=Schima superba, LiGl=Lithocarpus glaber, CaEy=Castanopsis eyrei, QuSe=Quercus serrata)
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
species, taxon
Values:
Lithocarpus glaber
Castanopsis eyrei
Quercus serrata
Schima superba
Contributors:
No information available

Dataset column

Name:
gd_042012
Definition:
the stem ground diameter measured in April 2012; Datagroup description: Stem diameter at 5 cm above ground was measured; Instrumentation: calliper
Unit:
centimeter
Datagroup:
Basal diameter
Keywords:
basal diameter
Values:
0.09
0.06
0.1
0.07
0.08
Contributors:
No information available

Dataset column

Name:
gd_092012
Definition:
the stem ground diameter measured in September 2012; Instrumentation: calliper
Unit:
centimeter
Datagroup:
Basal diameter
Keywords:
basal diameter
Values:
0.07
0.06
0.08
0.05
0.09
Contributors:
No information available

Dataset column

Name:
dbh_042012
Definition:
DBH measured in April 2012
Unit:
centimeter
Datagroup:
Diameter at breast height
Keywords:
dbh
Values:
0.42
0.54
0.58
0.6
0.4
Contributors:
No information available

Dataset column

Name:
dbh_092012
Definition:
DBH measured in September 2012; Datagroup description: Stem diameter at 1.3m above ground was measured
Unit:
centimeter
Datagroup:
Diameter at breast height
Keywords:
dbh
Values:
0.54
0.57
0.58
0.05
0.66
Contributors:
No information available

Dataset column

Name:
height_042012
Definition:
the total height measured in April 2012; Datagroup description: Total height was measured as the length from stem base to the apical meristem.; Instrumentation: linear tape
Unit:
centimeter
Datagroup:
Plant height
Keywords:
height
Values:
10
101
103
100
102
Contributors:
No information available

Dataset column

Name:
height_092012
Definition:
the total height measured in September 2012; Instrumentation: linear tape
Unit:
centimeter
Datagroup:
Plant height
Keywords:
height
Values:
103
102
100
101
10
Contributors:
No information available

Dataset column

Name:
multistems_092012
Definition:
the number of stems of multistem individuals, measured in September 2012
Unit:
No information available
Datagroup:
Multistem
Keywords:
multistems
Values:
2
5
4
3
2 became 1
Contributors:
No information available

Dataset column

Name:
comment_092012
Definition:
comments made during the survey September 2012
Unit:
No information available
Datagroup:
Comments
Keywords:
No information available
Values:
after cut, regeneration
400019
1 measured branch dead
close to 0520
C. fargesii
Contributors:
No information available

Dataset column

Name:
gd_042013
Definition:
the stem ground diameter measured in April 2013; Instrumentation: calliper
Unit:
centimeter
Datagroup:
Basal diameter
Keywords:
basal diameter
Values:
0.09
0.08
0.07
0.1
0.05
Contributors:
No information available

Dataset column

Name:
dbh_042013
Definition:
DBH measured in April 2013
Unit:
centimeter
Datagroup:
Diameter at breast height
Keywords:
dbh
Values:
0.45
0.6
0.67
0.57
0.69
Contributors:
No information available

Dataset column

Name:
height_042013
Definition:
the total height measured in April 2013; Instrumentation: linear tape
Unit:
centimeter
Datagroup:
Plant height
Keywords:
height
Values:
102
101
10
103
100
Contributors:
No information available

Dataset column

Name:
multistems042013
Definition:
the number of stems of multistem individuals surveyed in April 2013
Unit:
No information available
Datagroup:
Multistem
Keywords:
No information available
Values:
4
3
2
5
1
Contributors:
No information available

Dataset column

Name:
comment_042013
Definition:
comments made during the survey April 2013
Unit:
No information available
Datagroup:
Comments
Keywords:
No information available
Values:
dead
close to 2296
chinese writing
close to 0509
close to 0117
Contributors:
No information available

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