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Title:
Main experiment Site A: initial monitoring herb layer
Access rights:
Free within projects
Usage rights:
SP 11
Published:
No information available
Abstract:
Using observations and experimental approach, SP 11 investigated the impact of tree species richness on herb layer assembly and invasibility and quantified feedback effects of herb layer on growth and survival of trees. In a monitoring approach, species richness and composition of the herb layer was analysed as a function of environmental variables (Ecoscape approach). At the same time, we will use these treatments to quantify feedback effects of the herb layer on growth and survival of trees. Subproject 11 was mainly responsible for organizing vegetation survey of all experimental plots in cooperation with Z1 by providing a complete species list of all plots in the Main Experiment. After successful planting of trees and shrubs in spring 2009, a species survey was conducted during one vegetation period in each plot of the main experiment, using the W-Transect method. That allows us to quantify herb layer species richness and composition of the whole area of the main experiment. Additionally we focused on herb layer characteristics to use these variables as response variable to tree layer richness.
Design:
After successful planting of trees and shrubs in spring 2009, a species survey was conducted during one vegetation period in each plot of the main experiment, using the W-Transect method.Therefore, we staggered through a plot (W) and recorded all plants along these transect. That allows us to quantify herb layer species richness and composition of the whole area of the main experiment.
Spatial extent:
Main experiment, Site A 29°08'-29°11'N 117°90'-117°93'E
Temporal extent:
03/2009-04/2009
Taxonomic extent:
woody and herbaceous species on Site A
Measurement cirumstances:
No information available
Data analysis:
For each subplot, the coverage of each herb layer species is given.

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Dataset column

Name:
PTAG
Definition:
Research plots on the main experiment have a "p" in front of their IDs and then a 6 digit code: Plots in the main sites A and B are named according to their position in the original spreadsheet, in which they were designed. They consist of 6 digits: _1st digit_: Site (1:A, 2:B), _digit 2and3_: southwards row: as in spreadsheets the rows are named from the top to the bottom; _digit 4 and 5_: westward column: as in the original spreadsheet, but the letters are converted to numbers (A=01, B=02); _6th digit_: indicator, if the plot has been shifted a quarter mu. Example: "p205260": "p" means that this is a plot that is specified. "2" means, that we are at site B. Now the coordinates of the south - west corner: "0526". Since "e" is the fifth letter of the alphabet, this is Plot E26. The last digit "0" means that this plot was not moved by a quarter of a Mu, as some sites in Site A. The 6th digit can also indicate the subplot within the plot. "5", "6", "7", "8" indicate the northwest, northeast, southeast, and southwest quarter plot respectively.
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
VIP plots, plot
Values:
p102340
p102361
p103320
p103310
p102350
Contributors:
No information available

Dataset column

Name:
Plot
Definition:
Plotnumber; Datagroup description: Plot number on Site A; VIPs and each 1 mu replicate on Site A
Unit:
No information available
Datagroup:
Helper
Keywords:
Site A, plot, Main Experiment
Values:
C32
C31
B/C36
B34
B35
Contributors:
No information available

Dataset column

Name:
date
Definition:
date; Datagroup description: date for vegetation assessment, vegetation assessment from 2010-03-19 till 2009-04-07
Unit:
No information available
Datagroup:
Date time information
Keywords:
date
Values:
21-4-2009
19-3-2009
22-3-2009
23-4-2009
25-3-2009
Contributors:
No information available

Dataset column

Name:
species
Definition:
species; Datagroup description: species identity of the herb layer community by Plot
Unit:
No information available
Datagroup:
Scientific plant species name
Keywords:
herb layer, species
Values:
Actinidia chinensis
Agrimonia pilosa
Achyranthes bidentata
Adinandra millettii
Actinidia eriantha
Contributors:
No information available

Dataset column

Name:
percentCover
Definition:
cover of species herb layer community by Plot; "+"-rarely/once represented
Unit:
percent
Datagroup:
Cover of species
Keywords:
vegetation cover
Values:
11
+
1
10
Contributors:
No information available

Dataset column

Name:
lifeform
Definition:
lifeform, lifeform of each species: h-herb; c-climber; s-shrub; t-tree
Unit:
No information available
Datagroup:
Plant functional group or life form
Keywords:
functional group
Values:
h
h/c
s/c
s
c/s
Contributors:
No information available

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22 erfmeier medium

Alexandra
Erfmeier

Owner of:
23 Datasets

Involved in:
1 Projects

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73 pohl medium

Ricarda
Pohl

Owner of:
9 Datasets

Involved in:
2 Projects

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