LAI-2200CPlant canopy analyzerUsing a "fisheye" optical sensor (with a vertical field of view of 148 ° and a horizontal field of view of 360 °) to measure the transmitted light at five angles above and below the tree crown, and using the radiation transfer model of the vegetation tree crown to calculate tree crown structure parameters such as leaf area index, average leaf inclination angle, void ratio, and aggregation index.

LAI-2200C is based on the mature LAI-2000 technology platform and has a built-in GPS module that can integrate GPS information for scattered light correction, making it suitable for any canopy measurement under any sky conditions. GPS data can also be overlaid onto Google Earth to generate canopy information maps.
By using professional FV-2200 software, data can be processed and analyzed in depth.

Main Features

●Configure GPS module to achieve positioning, mapping, and scattered light correction; Truly achieving the ability to measure canopy structure information in any sky state;

● The probe can work independently, achieving unmanned long-term continuous measurement and automatic data recording;

● The host can integrate multiple probe data and calculate paired measurements of LAI (Leaf Area Index) and its standard error, MTA (Mean Leaf Angle) and its standard error, DIFN (Non Truncated Scattering), ACF (Apparent Agglomeration Index), etc;

● The professional software FV2200 integrates and processes data from multiple probe rods, calculates parameters, and optimizes data to meet the needs of various canopy types based on actual measurements and canopy characteristics;

● Lightweight and low power consumption; The host weighs 0.454kg, including four No. 5 batteries, and can be used continuously for more than 40 hours; The probe weighs 0.845kg and contains 2 No. 5 batteries, which can be used continuously for more than 180 hours;

● Measurement applicable to all vegetation types

technical indicators

LAI-2270CHost control unit

Sensor input:Two 6-pin LAI-2250 optical sensor interfaces; 2 BNC interfaces to connect other radiation sensors of LI-COR

Memory:128 MB
Keyboard:22 key touch responsive keyboard
Display:128 × 64 graphic display
Communication:USB
GPS(GPS RADIONOVA^®RF Antenna Module)：
Horizontal position accuracy: 2.5 meters CEP (50% circular error, 24-hour statistical results in outdoor open environment)
Maximum position update rate: 1Hz
Sensitivity of GPS receiver, autonomous acquisition: -148dBm
WAAS can receive
Time to first positioning (TTFF), hot start: 1 s, semi hot start: 6 s (typical), cold start (unobstructed sky): 37 s @ 90% probability
Clock: year, month, day, hour, minute, accuracy: ± 3 minutes/month
Power requirements:4 AA No. 5 batteries (alkaline battery/nickel hydrogen battery/lithium battery)
Battery life:
4 AA 5 alkaline batteries, not connected to optical sensor and built-in GPS, can be used for 90 hours
4 AA 5 alkaline batteries, connected to optical sensing sensor, not connected to built-in GPS, can be used for 60 hours
4 AA 5 alkaline batteries, not connected to optical sensor, connected to built-in GPS, can be used for 40 hours
Low battery alarm: Display alarm information when the remaining battery level is less than 15%
Size:20.9 L×9.8 W×3.5 D cm
Weight:0.454 kg (including battery)

LAI-2250Optical sensing sensor

Sensor input:1 6-pin interface connected to the host
Memory:1 MB flash memory (file storage), 1 KB EEPROM (calibration and accessory file storage)
Keyboard:2-key touch responsive keyboard
Clock:Year, month, day, hour, minute, accuracy: ± 3 minutes/month. When connected to the host control unit through a cable, the clock is synchronized with it.
Power requirements:Two AA No. 5 batteries (alkaline battery/nickel hydrogen battery/lithium battery)
Battery duration:The typical operating time is 180 hours (2 AA No. 5 alkaline batteries)
Optical path:When measuring from the center of mass of ring 4, the maximum centrifugal error is 1.00 ° and the maximum amplification error is 0.50 °
Lens coating:Both the inner and outer lenses are coated with magnesium fluoride (MgF2), which improves the transmittance of light at tilt angles.
Radiation Barrier Rate:Radiation between 490-650 nm>99% is blocked, and radiation greater than 650 nm>99.9% is blocked
Induction wavelength range:320-490 nm.
Cover cap:The azimuth covers quadrants 0 °, 10 °, 45 °, 90 °, 180 °, and 270 °
Scattering cap:Covering the lens when measuring sky scattering correction attributes
Size:63.8 L×2.9 W×2.9 D cm
Weight:0.845 kg (including battery)

Environmental Requirements

Operating temperature range:-20～50℃
Humidity range:0-95% RH (non condensing)

optional

Multiple LAI-2250 optical sensing sensors can be selected for forest measurement
LI-190R photosynthetically active radiation sensor
LI-200R Solar Total Radiation Sensor
LI-210R Visible Light Illumination Sensor
392-10657 interface

The Leaf Area Index (LAI) is closely related to ecosystem carbon flux and global carbon cycling processes, and is one of the basic parameters that need to be measured when conducting related research. The LAI-2200C plant canopy analyzer manufactured by LI-COR is currently recognized as the gold standard for non-destructive measurement in the academic community. There are various types of ecosystems in nature, including forests, grasslands, and shrubs How to measure the leaf area index of these different vegetation types? Please watch the video below.

Applications LAI-2200C Plant Canopy Analyzer LI-COR Environm-2.mp4

Applications LAI-2200C Plant Canopy Analyzer LI-COR Environm-3.mp4

Applications LAI-2200C Plant Canopy Analyzer LI-COR Environm-4.mp4

Applications LAI-2200C Plant Canopy Analyzer LI-COR Environm.mp4

Origin and Manufacturer: United StatesLI-CORcompany