LA - Leaf Area Index (LAI) and Radiation Measurements

Form: LLF - Results of direct LAI measurements (Litterfall)

Active since: 2011 Last change: 2018

!Sequence; code_country; code_plot; survey_id; date_start; date_end; date_analysis; code_tree_species; traps_number; total_sample_area; sla_species; lai_cum_species; lai_max_species; leaf_area_av; leaf_area_sd; other_observations

POSITION FIELD DESCRIPTION
1 Sequence

Description: Continuous number to identify the line of the submitted file
Format: I
2 code_country
M K

Description: ID of the country
Format: I
Dictionary: d_country
3 code_plot
M K

Description: Observation plot number
Remarks: A unique number (per country) given to the permanent plot during the selection or installation
Format: I
4 survey_id
M K

Description: LAI survey ID
Format: I
Explanatory Item: 191
5 date_start (DDMMYY)
M K

Description: Sampling period (from)
Remarks: E.g. '9th October 2012' = '091012'
Format: Date
6 date_end (DDMMYY)
M K

Description: Sampling period (till)
Remarks: E.g. '9th October 2012' = '091012'
Format: Date
7 date_analysis (DDMMYY)

Description: Date of analysis in
Remarks: E.g. '9th October 2012' = '091012'
Format: Date
8 code_tree_species
M K

Description: Coded tree species
Format: I
Dictionary: d_tree_spec
9 traps_number

Description: Number of the traps per plot
Format: I
10 total_sample_area (m²)
M

Description: Total Collecting area
Format: F
11 sla_species (cm²/g)

Description: SLA (species mean)
Format: F
12 lai_cum_species

Description: LAI cumulated for one year from the leafless stage in the preceding winter to the current leafless stage in winter, separately for each relevant tree species
Format: F
13 lai_max_species
M

Description: LAI cumulated from date of maximum foliation to the following leafless stage in winter, separately for each relevant tree species
Format: F
14 leaf_area_av (cm²/leaf)

Description: Average area of leaves
Format: F
15 leaf_area_sd (cm²/leaf)

Description: Standard deviation of average area of leaves
Format: F
16 other_observations (FREE TEXT)

DB Column: other_obs
Description: Supplementary comments
Format: C

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