Carbon Dioxide Emissions and Removals from Land Use Sectors

Carbon dioxide is the dominant GHG from land-use sector, particularly forests and grasslands. Forests accounted for about 30%, or 3,952 million hectares (Mha), of the global geographic area, followed by grasslands (about 27%), in 2005. Carbon dioxide emissions from land use and land-use change sector were estimated at 1.6 GtC (ranging from 0.5 to 2.7) annually during the 1990s (IPCC 2007a). Further, the net emissions from land use, land-use change and forest (LULUCF) sector in the tropics at 1.1 ± 0.27 GtC/year (IPCC 2007c), are dominated by conversion of forests (tropical deforestation), followed by loss of soil, forest degradation due to non-sustainable logging and fuelwood collection and forest fire. Estimates of CO2 emissions therefore range from 0.5 to 2.7 GtC; this wide range highlights the high uncertainty in estimates of CO2 emissions from land-use sectors. The high uncertainty is due to methodological and data-related issues. Interestingly, GHG inventory estimates show that the LULUCF sector is a sink of carbon in some countries such as Argentina and Zimbabwe and a source in others such as Indonesia and Brazil

(www.unfccc.int). IPCC has developed and recommended methods and guidelines for CO2 as well as other GHG emissions inventories in land-use sectors such as forests, cropland, grassland and wetlands (IPCC 1996, 2006). Carbon inventory in land-use sectors is characterized by high uncertainty in the estimates from the different inventory methods as well as input data.

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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