LA - Leaf Area Index (LAI) and Radiation Measurements
Form: LLF - Results of direct LAI measurements (Litterfall)
Form introduced: 2011
Last change: 2018
!Sequence; code_country; 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 | plot M K |
DB Column: code_plot 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 Remarks: Category -9 (‘Not relevant’) is not valid for this form. Please select a proper 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 Introduced: 2018 |
| 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 Introduced: 2018 |
| 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 Introduced: 2018 |
| 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 |