Title:
TSQ: Site B tree density and diversity
Access rights:
Private
Usage rights:
Private
Published:
No information available
Abstract:
The species richness for trees was calculated for each TSQ (for TSQ-level tree diversity), as well as the TSQ tree density (number of trees present)
Design:
The TSQs for Site B were created from, using the same methodology as for Site A in 2023. Therefore, a total of 102 TSQs were used for Site A. As the species of Site A were already known, two new species were pursued in order to produce a gradient of shrub species. These are Distylium buxifolium (DiBu) and Viburnum setigerum (ViSe). In Site B, a total of 133 TSQs were created, 89 containing shrubs within TSQs of different tree diversities, and 12 shrub only TSQs (controls)
Spatial extent:
BEF-China experiment, located near Xingangshang, Dexing City of Jianxi Province, Site B
Temporal extent:
No information available
Taxonomic extent:
Plants (Trees)
Measurement cirumstances:
No information available
Data analysis:
The species richness for trees was calculated for each TSQ (for TSQ-level tree diversity), as well as the TSQ tree density (number of trees present), in R Studio (Version 2024.09.0+375). The density refers the the number of trees present (alive).
Filter:
Dataset column
Name:
PLOT
Definition:
Location within the site; Datagroup description: In the BEF-China Experiment, the sites were divided into 1mu plots, where trees and shrubs were planted in 2009 for Site A. In each 1-mu plot, 400 trees were planted with a distance of 1.29m between. Shrubs were planted in 4mu Superplots, with different shrub diversity levels, in the interspaces of the trees (0.91m to the nearest tree).
Unit:
No information available
Datagroup:
Identifier
Keywords:
location
Values:
| F29 |
| F27 |
| E26 |
| G28 |
| F28 |
Contributors:
No information available
Dataset column
Name:
TSQ_SHRUB_ID
Definition:
Identification of the invidual shrubs, within the TSQS; Datagroup description: Within the plots, Tree Species Quadrats (TSQs) were created, which consist of a focal shrub in the centre and 4 surrounding trees, one on either corner of the quadrat. However, due to the high mortality rates of several species, many of the TSQs have less than 4 surrounding trees. The shrub coordinate, which is the same as the coordinate of the nearest tree in the SW direction (T1 of the TSQ), consists of four digits, representing the x and y coordinate (or row/column of the trees in the plot)
Unit:
Four-digit coordinate
Datagroup:
Identifier
Keywords:
location
Values:
| 0117 |
| 0103 |
| 0116 |
| 0009 |
| 0018 |
Contributors:
No information available
Dataset column
Name:
TSQ_TREE_DIVERSITY
Definition:
Tree species richness of TSQ; Datagroup description: In R Studio, the number of unique species within each TSQ was calculated
Unit:
No information available
Datagroup:
Diversity
Keywords:
competition
Values:
| 1 |
| 2 |
| 3 |
Contributors:
No information available
Dataset column
Name:
TSQ_TREE_DENSITY
Definition:
Number of living trees present
Unit:
No information available
Datagroup:
Density measure
Keywords:
competition
Values:
| 3 |
| 0 |
| 4 |
| 2 |
| 1 |
Contributors:
No information available
No information available
No information available
No information avialable
Filter:
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Filter:
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No information available