Header logo

Title:
CSP total tree basal area without the snowbreak trees
Access rights:
Private
Usage rights:
Data is restricted in use to the Subprojects, in which the Phd students are, who did the work. Contact the principle investigator for usage permission.
Published:
No information available
Abstract:
The BEF-China forest experiment studies the role of tree diversity in ecosystem functioning in subtropical forests. This data includes aggregated Basal area by Comparative Study Plots (CSP) in the Gutianshan National Nature Reserve. Basal area is calculated from data set "Tree size in the CSPs in 2008 and 2009" and it is calculated considering measurements on living trees after the snowbreak from 2008. Basal area estimation based on living trees and shrubs, using a linear model to predict missing dbh values based on living trees after the snowbreak 2008.
Design:
No information available
Spatial extent:
Data collection as explained in file SP01.CSP. Total basal area by CSP were calculated with "R", and records which had a comment of "dead" or "too small" were not included. CSPs, Gutianshan National Nature Reserve 29°08'-29°17'N 118°02'-118°11'E
Temporal extent:
Data for these calculations were recorded between may and september 2008
Taxonomic extent:
Trees and shrubs Comparative Study Plots
Measurement cirumstances:
No information available
Data analysis:
Basal area estimation based on living trees and shrubs, using a linear model to predict missing dbh values based on living trees after the snowbreak 2008. See the context "Measures on stem diameter distribution and basal area related to plot age in the CSPs" for a measure of basal area based on both living trees and those having been affected by the snowbreak in 2008. Basal area was calculated following: (pi/4)*(DBH^2). When DBH was missing, basal area (at breast height) was predicted from the basal ((pi/4)*(basal diameter^2) )area by a linear equation prediction: Basal area at breast height = 1.2527 + 0.4801*basal area. records with the comments "dead" and "too small" were excluded from the calculation. Separate values are given: basal area for shrubs (trees smaller than 10cm dbh) in the central plot (Basal area of shrubs in the CSPs was calculated by: CSPbha2008 - CSPbha10.2008). Basal area of trees in the cenral subplot of CSPs was calculated by: CSPbhaC.2008 - CSPbha.CSPbhaCS2008. Total Basal area of trees and shrubs in the CSPs was calculated by: CSPbha10.2008 + (9*(CSPbhaCS.2008))

Filter:
Dataset column

Name:
CSP
Definition:
name of the CSP in the Nature ReserveBEF 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:
CSP
Values:
CSP02
CSP01
CSP03
CSP04
CSP05
Contributors:
No information available

Dataset column

Name:
CSPbha2008
Definition:
Basal area considering the individuals measured in the CSP. These are trees > 3cm bd in the central subplot and > 10cm in the outer subplots.
Unit:
squaremeter
Datagroup:
Basal area
Keywords:
biomass, basal area
Values:
0.823998472015179
0.576927803189697
0.280586264069781
0.894208957539313
0.200585485544249
Contributors:
No information available

Dataset column

Name:
CSPbha10.2008
Definition:
Basal area of trees > 10 DBH in the CSPs
Unit:
squaremeter
Datagroup:
Basal area
Keywords:
No information available
Values:
0.206456287889391
0.159726016083094
0.754669672312027
0.517749101279382
0.701139148317678
Contributors:
No information available

Dataset column

Name:
CSPbhaC.2008
Definition:
Basal area of the trees and shrubs in the central subplot of each CSP
Unit:
squaremeter
Datagroup:
Basal area
Keywords:
biomass, basal area
Values:
0.107265264959671
0.092441643079712
0.160712060433595
0.13824633920924
0.0408594694611552
Contributors:
No information available

Dataset column

Name:
CSPbhaCS.2008
Definition:
Basal area of the shrubs in the central subplot of each CSP
Unit:
squaremeter
Datagroup:
Basal area
Keywords:
No information available
Values:
0.0184577147075368
0.018394560013953
0.00424104483591036
0.0174950463248475
0.0103642249528799
Contributors:
No information available

Dataset column

Name:
CSPbhaC10.2008
Definition:
Basal area of the trees in the central subplot of each CSP
Unit:
squaremeter
Datagroup:
Basal area
Keywords:
No information available
Values:
0.0897478801004162
0.00851121067108712
0.0331352887792811
0.0435883571394601
0.0864064821540581
Contributors:
No information available

Dataset column

Name:
CSPBhaT.2008
Definition:
Estimated total basal area for the CSPs
Unit:
squaremeter
Datagroup:
Basal area
Keywords:
biomass, basal area
Values:
0.873626073512903
1.51628836765435
1.62920961614958
0.527461241233491
1.05035741847221
Contributors:
No information available

No information available


No information available
No information avialable

Filter:
15 schmid medium

Bernhard
Schmid

Owner of:
29 Datasets

Involved in:
2 Projects

E-Mail Profile
6 baruffol medium

Martin
Baruffol

Owner of:
18 Datasets

Involved in:
1 Projects

E-Mail Profile
No information available

No information available
No information available