LEAF AREA INDEX (LAI) MEASUREMENT

Created by ChecklistGuro (https://checklistguro.com)

--- PLANNING & PREPARATION ---
[ ] Project Area (hectares)
[ ] Planned Start Date of Measurements
[ ] Planned End Date of Measurements
[ ] Measurement Technique(s) to be Used (Destructive Sampling, Litterfall Collection, Trinecta/LiDAR, Drone-Based Imagery, Satellite Imagery)
[ ] Brief Description of Crop/Vegetation Type and its characteristics
[ ] Required Measurement Resolution (Spatial) (Low (e.g., 10m), Medium (e.g., 1m), High (e.g., <0.1m))
[ ] Existing Site Maps/Layout Plans (if available)
[ ] Any known site-specific challenges or considerations?

--- SITE SELECTION & LAYOUT ---
[ ] Number of Measurement Plots
[ ] Plot Shape (e.g., Square, Circle, Rectangle) (Square, Circle, Rectangle, Other (specify))
[ ] Plot Size (e.g., in meters)
[ ] Rationale for Site Selection
[ ] GPS Coordinates of Representative Plot
[ ] Factors Considered for Site Representation (Crop Variety, Soil Type, Fertility Level, Irrigation Status, Slope, Other (specify))
[ ] Description of Surrounding Landscape

--- EQUIPMENT & CALIBRATION ---
[ ] LAI Sensor Type (if applicable) (Trisonyx, Mark II, Decagon, Other (specify in LONG_TEXT))
[ ] Sensor Serial Number
[ ] Last Calibration Date
[ ] Calibration Procedure
[ ] Calibration Standard Value (if applicable)
[ ] Measured Value (post-calibration)
[ ] Calibration Successful? (Yes, No)
[ ] Calibration Notes (if not successful)
[ ] Calibration Certificate (if applicable)

--- LAI MEASUREMENT - FIELD METHODS (IF APPLICABLE) ---
[ ] Plot Size (m²)
[ ] Number of Plots Measured
[ ] Destructive Sampling Method (if applicable) (All Plants Harvested, Random Quadrat Sampling, Transect Sampling)
[ ] Detailed Description of Sampling Procedure
[ ] Leaf Dry Weight (g) per Plot
[ ] Total One-Sided Area (cm²) of leaves per Plot
[ ] Leaf Orientation Method (if applicable) (Visual Estimation, Photography & Image Analysis)
[ ] Notes on Leaf Condition (e.g., disease, damage)
[ ] Date of Field Measurement
[ ] Time of Field Measurement

--- LAI MEASUREMENT - REMOTE SENSING (IF APPLICABLE) ---
[ ] Remote Sensing Platform (Drone (UAV), Satellite (e.g., Landsat, Sentinel), Airborne Sensor)
[ ] Flight Altitude (meters)
[ ] Ground Sampling Distance (GSD) (meters)
[ ] Sensor Type (Multispectral, Hyperspectral, Thermal, RGB)
[ ] Orthomosaic/Image Products
[ ] Radiometric/Atmospheric Correction Details
[ ] Solar Zenith Angle (degrees) at Image Acquisition
[ ] Image Acquisition Date
[ ] Processing Software Used (Agisoft Metashape, Pix4D, ENVI, QGIS, Other)
[ ] Any Specific Considerations/Notes on Image Acquisition and Processing

--- DATA PROCESSING & ANALYSIS ---
[ ] Radiometric Correction Factor (if applicable)
[ ] Atmospheric Correction Factor (if applicable)
[ ] Correction Method Applied (e.g., Dark Object Subtraction, Lambertian) (Dark Object Subtraction, Lambertian, Other (Specify in LONG_TEXT))
[ ] Specify Correction Method (if 'Other' selected above)
[ ] Pixel Size (m)
[ ] Number of Pixels Used for LAI Calculation (if applicable)
[ ] LAI Value (e.g., m²/m²)
[ ] Notes on Data Processing (e.g., any challenges encountered)
[ ] Processed Data File (e.g., CSV, GeoTIFF)

--- QUALITY CONTROL & VALIDATION ---
[ ] Number of Replicated Measurements
[ ] Measurement Error Assessment Conducted? (Yes, No)
[ ] Description of Error Assessment Method (if applicable)
[ ] Coefficient of Variation (CV) of LAI measurements
[ ] Comparison with Ground Truth Data? (Yes, No)
[ ] Description of Ground Truth Data (if available)
[ ] RMSE (Root Mean Squared Error) - LAI (if ground truth available)
[ ] Raw Data Files for QC
[ ] Date of Quality Control Check

--- DOCUMENTATION & REPORTING ---
[ ] Summary of Methods Used
[ ] Date of Measurement
[ ] Time of Measurement (Start)
[ ] Number of Measurement Plots/Points
[ ] Raw Data Files (e.g., instrument outputs, image files)
[ ] Observations & Challenges Encountered
[ ] Measurement Unit(s) Used (m² / m², Leaf Area / Ground Area)
[ ] Observer Signature

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