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From Source to Sink: Past Changes and Model Projections of Carbon Sequestration in the Global Forest Sector

Author

Listed:
  • Johnston, Craig
  • Buongiorno, Joseph
  • Nepal, Prakash
  • Prestemon, Jeff

Abstract

An economic model of the global forest sector was used to estimate the carbon mitigating potential of the world’s forests to 2065 for 180 countries assuming future socioeconomic trends that do not change markedly from historical patterns, consistent with the IPCC-SSP2. Forest carbon pools were broken down into four categories; (i) above-ground and below-ground biomass, (ii) forest soil, (iii) dead wood and litter, and (iv) harvested wood products. Changes in forest carbon storage were driven by the dynamic relationship between endogenously determined timber harvest, wood product consumption, evolving forest biomass stock, forest area change and exogenous demographic and income changes. The results suggested that the forest sector was a net carbon source of approximately 3.6 GtCO2e yr-1 in 1992, decreasing to 2.4 GtCO2e yr-1 in 2014 (average rate: -0.05 GtCO2e yr-1), in general agreement with previous historical assessments. In the projections, the global forest sector achieved a net zero carbon balance by the year 2025, but with large variations by region and country. By 2030, the world’s forest sector became a net carbon sink of 1.5 GtCO2e yr-1 and eventually of 6.8 GtCO2e yr-1 by 2065. Uncertainties exist in projecting changes in forest area, including the influence of socioeconomic drivers and climate policy targets, as well as the interplay between forests and climate.

Suggested Citation

  • Johnston, Craig & Buongiorno, Joseph & Nepal, Prakash & Prestemon, Jeff, 2019. "From Source to Sink: Past Changes and Model Projections of Carbon Sequestration in the Global Forest Sector," Journal of Forest Economics, now publishers, vol. 34(1-2), pages 47-72, August.
    • Handle: RePEc:now:jnljfe:112.00000442
    DOI: 10.1561/112.00000442
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    Citations

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    Cited by:

    1. Junmin Wei & Manhong Shen, 2022. "Analysis of the Efficiency of Forest Carbon Sinks and Its Influencing Factors—Evidence from China," Sustainability, MDPI, vol. 14(18), pages 1-17, September.
    2. Zhishan Ma & Susu Zhang & Sidong Zhao, 2021. "Study on the Spatial Pattern of Migration Population in Egypt and Its Flow Field Characteristics from the Perspective of “Source-Flow-Sink”," Sustainability, MDPI, vol. 13(1), pages 1-27, January.
    3. Baker, Justin S. & Van Houtven, George & Phelan, Jennifer & Latta, Gregory & Clark, Christopher M. & Austin, Kemen G. & Sodiya, Olakunle E. & Ohrel, Sara B. & Buckley, John & Gentile, Lauren E. & Mart, 2023. "Projecting U.S. forest management, market, and carbon sequestration responses to a high-impact climate scenario," Forest Policy and Economics, Elsevier, vol. 147(C).
    4. Hongge Zhu & Yingli Cai & Hong Lin & Yuchen Tian, 2022. "Impacts of Cross-Sectoral Climate Policy on Forest Carbon Sinks and Their Spatial Spillover: Evidence from Chinese Provincial Panel Data," IJERPH, MDPI, vol. 19(21), pages 1-21, November.

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