Carbon Stock Estimation by Forest Measurement Contributing to Sustainable Forest Management in Cambodia

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概要

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• A simplified method for estimating CO<SUB>2</SUB> emissions from deforestation is the calculation of carbon stock change by monitoring forest land and periodically summing up the land area and its averaged carbon stock for important forest types. As a feasibility study for applying this methodology to a tropical dry-land forest, we estimated carbon stock and its chronosequential change in 4 carbon pools (aboveground and belowground biomass, deadwood, and litter) of tropical dry-land natural forests in Cambodia. Carbon stock differed among forest types. Most of the carbon stock (84 ± 12% (SD)) existed in tree biomass. Growth of carbon stock has a positive relationship to the carbon stock itself. By moderately classifying forest types, determining averaged tree biomass of each forest type, and using land-area data on each forest type, a reasonably accurate estimation of carbon stock can be expected. However, considering that rapidly progressing deforestation and wood extraction may reduce the carbon stock in forests, systematic sampling with a sufficient number of extra plots and frequent updating of forest land area and averaged carbon stock data are vital for an accurate estimation of CO<SUB>2</SUB> emissions from forests under pressure of land-use change and forestry activities.

• 独立行政法人　国際農林水産業研究センターの論文

著者

• Araki Makoto

  Department Of Applied Electronics Tokyo University Of Science

• SUM Thy

  Department of International Conventions and Biodiversity, Ministry of Environment (MoE) Kingdomof Cambodia

• KIYONO Yoshiyuki

  Bureau of Climate Change, Forestry and Forest Products Research Institute

• MATSUMOTO Mitsuo

  Bureau of Climate Change, Forestry and Forest Products Research Institute (FFPRI)

• ITOH Eriko

  Department of Forest Site Environment, FFPRI

• FURUYA Naoyuki

  Department of Forestry, Japan International Research Center for Agricultural Sciences

• UMEMIYA Chisa

  School of Human Sciences, Waseda University

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