Soil Carbon

As mentioned earlier (Section 4.1.1), soil carbon is next only to above-ground biomass in terms of its contribution to the incremental total carbon stock in forests and plantations; in grassland or cropland projects, soil carbon is the predominant carbon pool. Soil carbon is likely to accumulate in forest and plantation projects, and the annual incremental stock over the baseline stock is likely to be very small, making it difficult to measure. For example, in degraded lands considered for afforestation and reforestation, the stock of carbon in soil at the time of planting could be 30-60 t/ha, and annual incremental addition due to afforestation is likely to be low at 0.25-1 t/ha. The difficulty in measuring such a small addition to a base stock is compounded by errors and uncertainties in measurement methods - the small estimated value could well be within the range of error. The same rationale applies to grassland or land reclamation projects. In avoided deforestation and forest management projects, soil carbon stock is unlikely to change measurably within 2-5 years because such projects do not involve change in land use or disturbance to topsoil.

However, for avoided deforestation or grassland conservation projects involving change in land use, such as conversion of forest land or grassland to cropland, soil carbon stock will be significantly impacted, requiring more frequent monitoring, at least in the initial years of the change in land use. In general, for most projects, soil carbon pool can be measured once in, say, five years.

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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