Forest management/Data uncertainties limitations: Difference between revisions

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|Reference=FAO, 2001; FAO, 2008; Brown, 1990; Carle and Holmgren, 2008
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|Description=Several assumption were made to model the future wood produced from forestry management systems, and these pinpoint towards uncertainties in the forestry management model and its data. Better monitoring and reporting of this data allows for better calibration of the present forestry module.
 
In the regularly published FAO Forest Resource Assessment, the amount of industrial produced wood is reported, but not the area from which these amounts are harvested, nor the use of different forest management types. Moreover, the amount of wood produced in deforestation processes is not reported, probably due to the illegal nature of many of such operations.
 
Another shortcoming in available forest-use data is the extent of informal fuelwood collection from forests in developing countries (FAO, 2001, 2008). At present, only part of the fuelwood demand is attributed to industrial forest harvesting. Another uncertainty is the absence of good data on historical forest-use, preceding the usually applied starting year for modelling , i.e. 1970. As forests take several decennia to even a century for regrowth after cutting, the effects of forest-use extends far into the future. To establish a good initial forest-use situation in 1970, forest use from the previous century should be known or at least assumed.
 
Calibration: I think the additional deforestation is part of that. Further, plantation establishment has been designed according to reported and projected planting rates by FAO (Brown, 1990; Carle and Holmgren, 2008).
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Revision as of 11:48, 20 November 2013

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