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Title:
CSPs: LAI data in spring and summer of 2012
Access rights:
Private
Usage rights:
No information available
Published:
Data has not yet been published.
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°.
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
Temporal extent:
Early spring and summer of 2012
Taxonomic extent:
Canopy trees
Measurement cirumstances:
No information available
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.

Filter:
Dataset column

Name:
CSP
Definition:
CSP name
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP, location
Values:
CSP04
CSP05
CSP01
CSP02
CSP03
Contributors:
No information available

Dataset column

Name:
LAI_spring
Definition:
LAI_spring
Unit:
No information available
Datagroup:
Leaf Area Index (LAI)
Keywords:
No information available
Values:
2.41666666666667
1.25666666666667
1.55555555555556
2.25555555555556
2.29444444444444
Contributors:
No information available

Dataset column

Name:
LAI_summer
Definition:
LAI_summer
Unit:
No information available
Datagroup:
Leaf Area Index (LAI)
Keywords:
No information available
Values:
2.58333333333333
2.72777777777778
2.23888888888889
2.55333333333333
2.56111111111111
Contributors:
No information available

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84 castro medium

Nadia
Castro

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15 schmid medium

Bernhard
Schmid

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Pascal
Niklaus

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