Methods for Dead Organic Matter Deadwood and Litter

Dead organic matter consists of deadwood and litter. Stems and branches of dead-wood 10 cm or larger in diameter form the deadwood pool and those smaller than that constitute litter (see Chapter 4 for a definition). Inclusion of dead organic matter pool makes the estimated changes in total carbon stock more accurate. Most of the biomass not harvested or burnt is added to the deadwood, litter and soil carbon pools. The dynamics of dead organic matter vary with the type of forest or plantation as well as with the purpose behind protecting a forest or raising a new forest. In fuelwood plantations or community forestry projects, the woody part of the dead organic matter is likely to be removed and used as fuelwood. However, in the case of avoided deforestation projects involving protection of forests, dead organic matter accumulates on the forest floor. Further, land-use change, particularly from forests and plantations to other land uses such as cropland or grassland, leads to complete loss of dead organic matter. Dead organic matter is not likely to be a dominant carbon pool for grassland reclamation, agroforestry and cropland management projects: it may account for about 10% of total carbon stocks in forests and tree plantations (Chapter 4) but may be practically absent in other land-use categories.

where DOM = dead organic matter, DW = deadwood and LT = litter.

The relevance of dead organic matter to project development and monitoring phases of land-based projects is as follows:

• Project development phase Dead organic matter is not relevant to baseline scenario, except for avoided deforestation or conversion of forest land to other land uses. Dead organic matter pool is either ignored for the project scenario or estimated using default values during the project development phase.

• Project monitoring phase During the project monitoring phase, dead organic matter is likely to be an important pool for carbon mitigation projects such as avoided deforestation, conversion of forest land to other uses and afforestation and reforestation projects. Thus, dead organic matter could be periodically measured and estimated during the project monitoring phase. This pool is relevant neither to commercial roundwood production programmes nor to non-tree land-based projects on grassland and cropland.

Dead organic matter pools can be estimated by "Gain-Loss" or "Stock-Difference" methods. These two methods are explained in IPCC (2003, 2006) and in Chapter 9. The methods and procedures for measuring and estimating deadwood and litter are explained in this chapter.

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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