Main Experiment: inventory data (SP1: 1a/3) Site A 2009-2012 and site B 2010-2013

Usage Rights

This data is Private.

Dataset Abstract

Several field studies have shown the positive effect of diversity on primary productivity in grasslands. However, little is known about forest ecosystems, the most productive vegetation type on Earth and responsible for more than 50 % of global net primary productivity (NPP). In this project, we will investigate the relationship between tree diversity (species richness, identity, composition, and functional diversity) and the aboveground biomass production during the initial development of forest communities in the Main Experiment. This dataset contains 4-year growth data of trees in the core area in all plots of the Main Experiment (excluding genetic plots).
Data was collected by SP1 PhD students, M. Baruffol, N. Castro and Y. Huang, in collaboration with SP2. Data has been cleaned, matched and corrected/fixed by N. Castro.

Dataset Design

We measured the central 4x4 tree individuals of all plots in late summer/early autumn of 2009-2013. Position, alive/dead, species, basal diameter, diameter at breast height, and height were recorded. Trees were marked with small white plastic labels at the beginning of the experiment and its growth was monitor during the following years.

Spatial Extent

The Main Experiment consists of two sites (A & B) located near to the village Xingangshan in Dexing County, Jiangxi province. Each site covers 256 1-mu plots (after excluding all plots from the F and G scenarios and all plots with 0- tree species richness). Each plot comprises 400 trees (planted as 20x20 grid).

Published

This dataset has not yet been used for publications.

Temporal Extent

A census was conducted every year in late summer/early autumn of 2009-2013.

Taxonomic Extent

The central 4x4 tree individuals of all plots in site A and B (after excluding all plots from the F and G scenarios and all plots with 0- tree species richness).

Measurement Circumstances

Note that only in 2012 the metal labels were attached to the trees. Before that year, there were no permanent labels and some labels (from SP1/SP2) fell off. This led to some mistakes and some tree species don't match among years. In addition, replanting data was only recorded by Z1 in 2012 (during replanting campaings). Tree age has been determined using seedling data from Chen Lin and Xuefei, replanting data 2012 by Z1, inventory data (SP1 and SP2) and leaf demography data (SP1).

Data Analysis

The data will be used to estimate the stand basal area and biomass in order to test the effects of diversity on primary production.

Data columns available in the raw data part of this dataset

site
Site of the Main Experiment (A or B)
Data group: Experimental Site
Keywords: Site A, Site B
Alert Sample values are not displayed because this column hasn't been approved yet.
plot
Name of each plot, coded with letters and numbers in Site A and B
Data group: Plot name Main experiment (letter, number code)
Keywords: Main Experiment, Site A, Site B
Alert Sample values are not displayed because this column hasn't been approved yet.
id.position
A unique ID code for each tree planting position (not tree individual)
Data group: Not specified
Keywords: Main Experiment, tree
Alert Sample values are not displayed because this column hasn't been approved yet.
id.2009
Tree individual ID code in 2009 (according to SP1/SP2 system)
Data group: Not specified
Keywords: tree, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
* Lang, A., Härdtle, W., von Oheimb, G., Li, Y. also contributed to this column.
c16.2009
Position of tree in relation to core area in 2009 (inside, outside, messy). Only "inside" trees are used for analysis.
Data group: Not specified
Keywords: Main Experiment, Core Area
Alert Sample values are not displayed because this column hasn't been approved yet.
alive.2009
living status of the tree in 2009 (alive or dead); Datagroup description: if an organism is dead or alive
Data group: Living status
Keywords: tree, alive, dead
Alert Sample values are not displayed because this column hasn't been approved yet.
age.tree.2009
Age of tree in inventory of 2009 (new: tree planted in the year of the inventory; old: tree planted in the year before the inventory; unknown: unknown age)
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sp.2009
Species in 2009
Data group: Scientific plant species name
Keywords: species
Alert Sample values are not displayed because this column hasn't been approved yet.
bd.2009
Basal diameter (at 5-10 cm from the ground surface) in 2009
Unit: centimeter
Data group: Basal diameter
Keywords: basal diameter
Alert Sample values are not displayed because this column hasn't been approved yet.
h.2009
Height in 2009
Unit: centimeter
Data group: Plant height
Keywords: height, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
id.2010
ID code in 2010 (according to SP1/SP2 system)
Data group: Not specified
Keywords: tree, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
c16.2010
Position of tree in relation to core area in 2010 (inside, outside, messy). Only "inside" trees are used for analysis.
Data group: Not specified
Keywords: Main Experiment, Core Area
Alert Sample values are not displayed because this column hasn't been approved yet.
alive.2010
living status of the tree in 2010 (alive or dead)
Data group: Living status
Keywords: tree, alive, dead
Alert Sample values are not displayed because this column hasn't been approved yet.
age.tree.2010
Age of tree in inventory of 2010 (new: tree planted in the year of the inventory; old: tree planted in the year before the inventory; unknown: unknown age)
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sp.2010
Species in 2010
Data group: Scientific plant species name
Keywords: species
Alert Sample values are not displayed because this column hasn't been approved yet.
bd.2010
Basal diameter (at 5-10 cm from the ground surface) in 2010
Unit: centimeter
Data group: Basal diameter
Keywords: basal diameter
Alert Sample values are not displayed because this column hasn't been approved yet.
dbh.2010
Diameter at breast height in 2010
Unit: centimeter
Data group: DBH
Keywords: dbh, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
h.2010
Height in 2010
Unit: centimeter
Data group: Plant height
Keywords: height, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
id.2011
ID code in 2011 (according to SP1/SP2 system)
Data group: Not specified
Keywords: tree, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
c16.2011
Position of tree in relation to core area in 2011 (inside, outside, messy). Only "inside" trees are used for analysis.
Data group: Not specified
Keywords: Main Experiment, Core Area
Alert Sample values are not displayed because this column hasn't been approved yet.
Z1.label.2011
ID code in 2011 (according to Z1; barcode labels)
Data group: Not specified
Keywords: Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
alive.2011
living status of the tree in 2011 (alive or dead)
Data group: Living status
Keywords: tree, alive, dead
Alert Sample values are not displayed because this column hasn't been approved yet.
age.tree.2011
Age of tree in inventory of 2011 (new: tree planted in the year of the inventory; old: tree planted in the year before the inventory; unknown: unknown age)
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sp.2011
Species in 2011
Data group: Scientific plant species name
Keywords: species
Alert Sample values are not displayed because this column hasn't been approved yet.
bd.2011
Basal diameter (at 5-10 cm from the ground surface) in 2011
Unit: centimeter
Data group: Basal diameter
Keywords: basal diameter
Alert Sample values are not displayed because this column hasn't been approved yet.
dbh.2011
Diameter at breast height in 2011
Unit: centimeter
Data group: DBH
Keywords: dbh, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
h.2011
Height in 2011
Unit: centimeter
Data group: Plant height
Keywords: height, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
id.2012
ID code in 2012 (according to SP1/SP2 system)
Data group: Not specified
Keywords: tree, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
c16.2012
Position of tree in relation to core area in 2012 (inside, outside, messy). Only "inside" trees are used for analysis.
Data group: Not specified
Keywords: Main Experiment, Core Area
Alert Sample values are not displayed because this column hasn't been approved yet.
Z1.label.2012
ID code in 2012 (according to Z1; metal labels)
Data group: Not specified
Keywords: Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
alive.2012
living status of the tree in 2012 (alive or dead)
Data group: Living status
Keywords: tree, alive, dead
Alert Sample values are not displayed because this column hasn't been approved yet.
age.tree.2012
Age of tree in inventory of 2012 (new: tree planted in the year of the inventory; old: tree planted in the year before the inventory; unknown: unknown age)
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sp.2012
Species in 2012
Data group: Scientific plant species name
Keywords: species
Alert Sample values are not displayed because this column hasn't been approved yet.
bd.2012
Basal diameter (at 5-10 cm from the ground surface) in 2012
Unit: centimeter
Data group: Basal diameter
Keywords: basal diameter
Alert Sample values are not displayed because this column hasn't been approved yet.
dbh.2012
Diameter at breast height in 2012 (largest diameter if cross-section was not round)
Unit: centimeter
Data group: DBH
Keywords: dbh, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
dbh.perpendicular.2012
Diameter at breast height in 2012; diameter perpedicular to largest diameter if cross-section was not round
Unit: centimeter
Data group: DBH
Keywords: dbh, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
h.2012
Height in 2012
Unit: centimeter
Data group: Plant height
Keywords: height, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
id.2013
ID code in 2013 (according to SP1/SP2 system)
Data group: Not specified
Keywords: tree, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
c16.2013
Position of tree in relation to core area in 2013 (inside, outside, messy). Only "inside" trees are used for analysis.
Data group: Not specified
Keywords: Main Experiment, Core Area
Alert Sample values are not displayed because this column hasn't been approved yet.
Z1.label.2013
ID code in 2013 (according to Z1; metal labels)
Data group: Not specified
Keywords: Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
alive.2013
living status of the tree in 2013 (alive or dead)
Data group: Living status
Keywords: tree, alive, dead
Alert Sample values are not displayed because this column hasn't been approved yet.
age.tree.2013
Age of tree in inventory of 2013 (new: tree planted in the year of the inventory; old: tree planted in the year before the inventory; unknown: unknown age)
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
sp.2013
Species in 2013
Data group: Scientific plant species name
Keywords: species
Alert Sample values are not displayed because this column hasn't been approved yet.
bd.2013
Basal diameter (at 5-10 cm from the ground surface) in 2013
Unit: centimeter
Data group: Basal diameter
Keywords: basal diameter
Alert Sample values are not displayed because this column hasn't been approved yet.
dbh.2013
Diameter at breast height in 2013 (of largest stem if tree has more than one stem)
Unit: centimeter
Data group: DBH
Keywords: dbh, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.
dbh.stem2.2013
dbh.stem2.2013
Data group: Not specified
Alert Sample values are not displayed because this column hasn't been approved yet.
h.2013
Height in 2013
Unit: centimeter
Data group: Plant height
Keywords: height, Main Experiment
Alert Sample values are not displayed because this column hasn't been approved yet.