Forest carbon flux metering system and method

Abstract

The invention discloses a forest carbon flux metering system and method. The system comprises a data processing terminal and a data acquisition device, wherein the data acquisition device comprises awireless data forwarding module and a plurality of data acquisition modules located at different heights in a tree canopy, the data acquisition module comprises a temperature sensor, a humidity sensor, an illumination sensor, a carbon dioxide sensor and a wireless communication module, the wireless communication module is electrically connected with the temperature sensor, the humidity sensor, theillumination sensor and the carbon dioxide sensor, the wireless communication module is wirelessly connected with the wireless data forwarding module through a wireless network, and the wireless dataforwarding module is wirelessly connected with the data processing terminal through the wireless network. The system is advantaged in that the data acquisition modules are arranged at different canopy positions of a forest to acquire temperature data, humidity data, illumination data and CO2 concentration data, a carbon flux value in the measurement area is calculated, and the space-time distribution characteristics of the carbon flux in the measurement area can be well expressed.

Description

technical field [0001] The invention relates to the technical field of carbon flux measurement, in particular to a forest carbon flux measurement system and method. Background technique [0002] The carbon cycle refers to the phenomenon that carbon elements are exchanged in the biosphere, lithosphere, hydrosphere and atmosphere on the earth, and the cycle continues with the movement of the earth. The carbon cycle in the biosphere is mainly manifested in the process in which green plants absorb carbon dioxide from the atmosphere, convert it into glucose through photosynthesis with the participation of water, and release oxygen, and organisms then use glucose to synthesize other organic compounds. Since modern times, the industrial revolution has accelerated the pace of human development, but it has also intensified the exploitation and use of fossil fuels such as coal and oil, resulting in a sharp increase in the concentration of greenhouse gases such as CO2 and CH4 in the at...

AI Technical Summary

Problems solved by technology

However, the carbon flux values ​​obtained by the eddy correlation method represent a large area, and cannot well represent the spatiotemporal distribution of the flux in the measurement area

Moreover, it is expensive to build a flux tower, and it is impossible to arrange flux towers on a large scale to obtain the temporal and spatial distribution of flux values

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