CSPs: LAI data in spring and summer of 2012

Usage Rights

This data is Private.

Dataset Abstract

To test the effect of diversity on leaf area index (LAI) we took hemispheric pictures in each CSP in early spring and in summer of 2012. Plots were divided into nine subplots and pictures of the canopy were taken in the center of each subplot, at 1.5m above ground (Nikon D3000 SLR camera, Sigma 4.5mm f/2.8 circular fish-eye lens). Pictures were processed with Hemisfer 2.1, using a weighted ellipsoidal method, a non-linearity correction for slope, and a total observed zenith angle of 75° divided into five rings of 15°.

Dataset Design

In 2008, 27 plots were established. The size of each plot was 30 m x 30 m. Each plot contain 9 subplots. We took hemispheric pictures at the center of each subplot, early in spring and in summer of 2012.

Spatial Extent

Comparative study plots (CSPs)

29°08'-29°17'N

118°02'-118°11'E

Published

Data has not yet been published.

Temporal Extent

Early spring and summer of 2012

Taxonomic Extent

Canopy trees

Data Analysis

Plot-level LAI was calculated as the average of LAI estimated from the nine quadrats in spring (LAI.spring) and summer (LAI.summer) . We test the effect of diversity (number of tree species) on LAI.

Paper proposal submissions

Published

2017

Data columns available in the raw data part of this dataset

CSP
CSP name
Data group: BEF research plot name
Keywords: CSP, location
Values
CSP05
CSP02
CSP04
CSP01
CSP03
LAI_spring
LAI_spring
Data group: Leaf Area Index (LAI)
Values
1.55555555555556
1.25666666666667
2.41666666666667
2.29444444444444
2.25555555555556
LAI_summer
LAI_summer
Data group: Leaf Area Index (LAI)
Values
2.58333333333333
2.23888888888889
2.55333333333333
2.72777777777778
2.56111111111111