DEVS 201 Chapter Notes -Climate Change Mitigation, Carbon Cycle, Ecosystem Services

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Published on 12 Apr 2013
School
Simon Fraser University
Department
Developmt &Sustainability
Course
DEVS 201
REDD Mitigation
tropical deforestation is a major driver of climate change
mitigation strategy name Reduction Emission from Deforestation and forest Degradation (REDD)
o tackle emissions due to forest loss in developing countries
o REDD’s implementation presents several political and scientific challenges
Introduction
Ecosystem services provided by forests are widely acknowledged
land use changes plays a major role in determining sources and sinks of carbon
REDD aims at slowing down rate that tropical forests are degraded and deforested
o created by United Nations Framework Convention for Climate Change (UNFCC)
o low cost mitigation mechanism
o financial incentives (carbon credits) to the countries for preserving tropical forests
o incentives proportional to the amount of avoided emissions in a business as usual (BAU)
scenario
o allocation of carbon credits requires accurate estimates of carbon stocks preserved from
deforestation
o satellites allow to measure the forest cover and identify possible disturbances
o radar imagery could be used to estimate forest biomass carbon density over large areas
and assess levels of forest degradation
o at present, avoided deforestation and degradation can only be calculated using the rate
of change in forest cover and the amount of carbon stored in the forest, plus the
delayed emissions from soils
Current Deforestation and forest Degradation
2.1 Trends in Forest Area
Red Baseline scenarios depend on historical deforestation
it was suggested that the best available data archive of historical deforestation area for
REDD could be global Landsat imagery complemented by coarser resolution high
frequency or radar data
The FAO (Food and agricultural organization of the United Nations) provides periodic
reports of forest cover area based upon field data from national statistics
o not very accurate
forest loss is dominated by deforestation occurring in Latin America
o mainly localized in Brazil
REDD programs will require only gross deforestation data
remote sensing are valuable because of the consistent application of forest definition
and methodology, but lack background necessary to inform about the carbon cycle
o background could be supplied by FAO statistics
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Document Summary

Redd mitigation tropical deforestation is a major driver of climate change. Mitigation strategy name reduction emission from deforestation and forest degradation (redd) tackle emissions due to forest loss in developing countries: redd"s implementation presents several political and scientific challenges. Ecosystem services provided by forests are widely acknowledged. Red baseline scenarios depend on historical deforestation it was suggested that the best available data archive of historical deforestation area for. Redd could be global landsat imagery complemented by coarser resolution high frequency or radar data. Average and spatial distribution of biomass are practically unknown in the tropics the carbon density in the forest biomass can be calculated only using ground based forest carbon measurements. Plenty of data sources and methods are already available. New approaches would be necessary to extend field plot networks and fill the gaps between forest inventory plot measurements and satellite observations: airborne mapping methods can assist.

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