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Related Concept Videos

The Carbon Cycle01:14

The Carbon Cycle

Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...

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Updated: Jun 26, 2026

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring
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Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

Improving Forest Carbon Sink Accounting Using Integrated Satellite-Ground Observations, Machine Learning, and

Xinhua Hong1,2,3, Jiajia Wang4, Junjie Huang5

  • 1College of Life and Environment Sciences, Huangshan University, Huangshan 245041, China.

Environmental Science & Technology
|June 24, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces an integrated framework to accurately measure forest carbon sinks. The new method enhances carbon accounting and shows China

Keywords:
BEPS modelForest carbon sinkGradient boosting regression tree (GBRT) algorithmMachine learningVehicle-mounted mobile monitoring

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Published on: October 16, 2018

Area of Science:

  • Forest ecology and climate change mitigation.
  • Terrestrial carbon cycle dynamics.
  • Environmental policy effectiveness.

Background:

  • Forest ecosystems are crucial terrestrial carbon sinks for climate change mitigation.
  • Current carbon accounting methods are limited by inaccurate background CO2 measurements.
  • Reliable regional carbon accounting requires integrated monitoring approaches.

Purpose of the Study:

  • To develop and apply an integrated framework for monitoring forest carbon sinks.
  • To improve the accuracy of Net Ecosystem Productivity (NEP) reconstruction.
  • To evaluate the impact of ecological conservation policies on carbon sequestration.

Main Methods:

  • Integration of satellite observations and mobile ground-based measurements.
  • Application of the Gradient Boosting Regression Trees (GBRT) algorithm for CO2 concentration.
  • Utilizing the Boreal Ecosystem Productivity Simulator (BEPS) model with GBRT-derived CO2 data.

Main Results:

  • Improved BEPS model performance with GBRT-derived CO2, increasing correlation from 0.571 to 0.802.
  • Observed sustained increase and acceleration in Kunyu Mountain's NEP after 2016.
  • Attributed 5%-7% increase in carbon sequestration to ecological conservation policies.

Conclusions:

  • The integrated framework offers a novel approach for accurate regional carbon sink accounting.
  • The study demonstrates significant carbon sequestration increases in Kunyu Mountain, linked to policy implementation.
  • Ecological conservation policies have demonstrably enhanced forest carbon uptake capacity.