An assessment method for carbon sequestration and sink of coastal wetland ecosystem

By combining on-site monitoring and remote sensing imagery, analyzing multispectral data and conducting quadrat sampling, carbon storage and flux were calculated, solving the problems of insufficient accuracy and efficiency in coastal wetland carbon sink monitoring, and achieving efficient assessment of coastal wetland carbon storage and flux.

CN122242919APending Publication Date: 2026-06-19POWERCHINA HUADONG ENG CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
POWERCHINA HUADONG ENG CORP LTD
Filing Date
2026-02-03
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing technologies for monitoring carbon sinks in coastal wetlands suffer from insufficient accuracy and efficiency, high on-site monitoring costs, and limitations in the resolution and accuracy of remote sensing technology in accurately estimating carbon storage.

Method used

By combining on-site monitoring and remote sensing imagery, multispectral data analysis and field surveys were conducted, sample plots were set up for sampling and indoor drying, carbon storage and carbon flux were calculated, and the sea-air carbon dioxide exchange flux was calculated by combining hydrological and biogeochemical parameter monitoring, and the effect of vegetation carbon sequestration and enhancement was analyzed.

Benefits of technology

It improves the accuracy and efficiency of monitoring carbon storage and carbon flux in coastal wetlands, provides an accurate assessment of carbon sinks in coastal wetlands, and offers theoretical basis and technical support for the protection and restoration of coastal wetlands.

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Abstract

This invention provides a method for assessing the carbon sequestration effect in coastal wetland areas, comprising the following steps: (1) obtaining the area and distribution of coastal wetlands through multispectral remote sensing images; (2) setting up mangrove and reed survey plots, conducting on-site sampling and hydrological monitoring (tide level, salinity, carbon dioxide partial pressure, etc.); (3) calculating parameters such as biomass and carbon density of mangrove and reed samples to obtain carbon storage data within the plots; (4) combining the carbon storage data of the plots with the community structure and area of ​​the study area to conduct vegetation accounting in the study area and obtain the total carbon storage; (5) calculating the sea-air carbon dioxide exchange flux of coastal wetlands using empirical formulas based on on-site hydrological monitoring data; (6) conducting research on the carbon sequestration capacity of different types of vegetation such as wetland vegetation, mangroves, and reeds; the method of this invention can accurately monitor and calculate carbon sequestration parameters such as carbon storage and carbon flux in coastal wetlands, providing technical support for the restoration and carbon sequestration of coastal wetlands.
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