Exploratory plot descriptors - tree data - Spain

Usage Rights

This data is Free for members.

Dataset Abstract

This dataset contains the location, size and species of the trees in each plot. Duplicate tree ids in a plot indicate multi-stemmed trees.

Dataset Design

The crown cross sectional area was calculated from the average of the two crown axis measurements.

Spatial Extent

Spain

Taxonomic Extent

The focal tree species in Spain are Pinus sylvestris, Pinus nigra, Quercus faginea and Quercus ilex

Data columns available in the raw data part of this dataset

PlotID
Unique plot id
Data group: Exploratory plot id
Values
SPA04
SPA01
SPA05
SPA02
SPA03
TreeNumber
Unique tree number
Data group: Tree number
Values
1
100a
10
100
100b
SpeciesCode
Tree species code
Data group: Tree species code
Values
JUNCOM
BUXSEM
JUN
JUNOXY
CRA
Species
Tree species
Data group: Tree species
Values
Juniperus communis
Juniperus phoenicia
Buxus sempervirens
Crataegus sp.
Juniperus oxycedrus
Focal
Is this a focal species in the region
Data group: Helper
Values
0
1
Target
Is this a target tree in the plot
Data group: Helper
Values
0
1
DBH
DBH
Unit: m
Data group: Tree size
Values
0.016
0.018
0.012
0.015
0.01
x
x coordinate
Unit: m
Data group: Tree coordinate
Values
-0.03
0.1
-0.09
-0.11
0
y
y coordinate
Unit: m
Data group: Tree coordinate
Values
0.04
-0.03
0.07
0
-0.02
Height
Height
Unit: m
Data group: Tree size
Values
10.1
1
10.2
0.8
10
BaseLiveCrown
Base of the live crown
Unit: m
Data group: Tree size
Values
0.4
0.02
0.1
0.2
0.3
DcX
Crown diameter X axis
Unit: m
Data group: Tree size
Values
10
0
0.5
0.6
1
DcY
Crown diameter Y axis
Unit: m
Data group: Tree size
Values
0.3
1
0.5
10
0
Kraft
Kraft
Data group: Tree health
Values
3
4
1
5a
2
Quality
Quality
Data group: Tree health
Values
4
1
3
2
BasalArea
The basal area of the tree (DBH/2)^2*3.142
Unit: m^2
Data group: Tree size
Values
0.000113112
0.000254502
0.0003142
0.00017673749999999998
0.00020108799999999998
CrownCrossSectionalArea
The cross sectional area of the crown: calculated from the average crown diameter measurement
Unit: m^2
Data group: Tree size
Values
0.44184375
0.12568000000000001
0
0.196375
0.5027200000000001
Observation
Observation
Data group: Helper
Values
dead top
broken top
dead
almost dead, some branches are still alive
almost dead, some branches still alive