The PE-LAI02 online LAI monitoring system uses the extinction coefficient method and is based on the photon sensor to realize real-time monitoring of plant transmitted radiation. And calculate the plant canopy structure information, such as leaf area index (LAI). Mainly used in crop growth monitoring, ecological assessment, crop yield estimation and other application fields
Measurement principle:
The method calculates the leaf area index by measuring the radiation above and below the canopy and parameters related to the extinction coefficient, provided that leaves are assumed. The random distribution and leaf inclination are elliptical, known by the Beer-Lambert law:
In the formula: LA I is the leaf area index, Q0 and Q are the solar radiation on the upper and lower parts of the canopy, respectively, and k is the extinction coefficient of a specific plant canopy, which generally varies from 0.13 to 1.15. The calculation formula is:
System Features:
Local wireless networking design, multi-node configuration, to achieve wireless networking within a range of 3km, avoiding the trouble of wiring
Continuous monitoring of plant index changes
Can realize data remote transmission and remote control
It can be extended to monitor other indexes at the same time, such as NDVI, PRI, etc.
It can be extended to monitor meteorological data, soil data, etc. at the same time
Measurement parameters:
Leaf Area Index (LAI), PAR, FVC, etc.
