Dynamic carbon sink measurement method for afforestation carbon sink and forest management carbon sink projects

A dynamic carbon sink measurement method for afforestation carbon sink and forest management carbon sink projects, comprising following steps:

• monitoring a project boundary, including:
• determining the project boundary;
• monitoring a baseline IoT, including:
• dividing baseline carbon layers and computing an area;
• baseline carbon layer carbon density IoT monitoring, including:
• designing and deploying baseline IoT sample plots, dynamically monitoring an arbor per unit area, a deadwood per unit area, and a litter per unit area in the baseline carbon layers, and computing the baseline carbon layer carbon density:
• (a) after measuring a perimeter of the sample plots, fixing a tree diameter measurement sensor at a breast height position of each sample tree in a zigzag route, recording tree species and tree type information of the sample tree, and fixing a communication gateway in a center of the sample plots;
• (b) after the communication gateway obtains the data collected by each tree diameter measurement sensor and synchronizes a clock with each tree diameter measurement sensor, the communication gateway transmits stored information back to a server through a mobile communication network or Beidou short message, and disconnects a connection with the tree diameter measurement sensor after successful transmission, and then enters a sleep state;
• (c) the tree diameter measurement sensor automatically enters the sleep state when there is no connection with the communication gateway;
• (d) the communication gateway and the tree diameter measurement sensor automatically wake up at a set wake-up time, wake-up duration, and wake-up frequency, completing steps (b) and (c) until an end of a monitoring cycle;
• computing a baseline carbon layer total carbon stock, including:
• by multiplying the baseline carbon layer carbon density by the area of each carbon layer patch, obtaining the baseline carbon layer total carbon stock;
• monitoring the project IoT, including:
• dividing the project carbon layers, including:
• within the project boundary, dividing the project carbon layers according to project activity types;
• monitoring remote sensing change of the project carbon layers, including:
• conducting a change detection of remote sensing images for two periods, updating the project carbon layer patches and generating the changes of the patches through an interpretation, verification, and validation of the changed patches, obtaining a current status database and change database of the project carbon sinks, and a latest carbon layer patch area for total processing measurement of the project carbon layers, wherein a layout method and process of the project IoT sample plot monitoring are consistent with the baseline IoT sample plot monitoring;
• project carbon layer carbon density IoT monitoring, including:
• designing and deploying the IoT sample plots for the project according to the project carbon layers adjusted by the remote sensing change monitoring, dynamically monitoring the arbor of the forest per unit area, the deadwood per unit area, the litter per unit area in the project carbon layers, and greenhouse gas emissions of the project, and computing the baseline carbon layer carbon density;
• computing the project carbon layer total carbon stock, including:
• by multiplying the project carbon layer carbon density by the area of each carbon layer patch, obtaining the project carbon layer total carbon stock;
• monitoring total carbon stock and carbon change in real time, including:
• computing the total carbon stock for the current monitoring cycle within the project boundary, as well as a carbon change rate per unit time;
• determining the end of monitoring and monitoring the automatic period including:
• running and monitoring periodically according to the set time of the IoT monitoring sample plots;
• ending the monitoring if the monitoring of the project boundary, baseline, and project activities all ceases and results in withdrawal of the project.