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Norwegian University of Life Sciences, Ås (2019)

Analyzing aspects of land-use sustainability in Tanzania : current forest degradation, urban charcoal demand, and impacts of future firewood and charcoal consumption

Nyamoga, Greyson Zabron

Titre : Analyzing aspects of land-use sustainability in Tanzania : current forest degradation, urban charcoal demand, and impacts of future firewood and charcoal consumption

Analyse av aspekter ved bærekraftig skogforvaltning i Tanzania : Dagens skogforringelse, etterspørsel etter trekull i byområder og konsekvenser av framtidig forbruk av ved og trekull

Auteur : Nyamoga, Greyson Zabron

Université de soutenance : Norwegian University of Life Sciences, Ås

Grade : Philosophiae Doctor (PhD) 2019

Résumé partiel
The forest sector plays a significant roles both directly and indirectly in Tanzania. In total 54% of the land area of mainland Tanzania is covered by different types of forests, the main ones being the miombo woodlands, woodland mosaics, mangrove and the tropical or rain forests with closed canopy. Forestry supports directly or indirectly other sectors including agriculture and tourism through provision of habitats for wildlife, water resources and catchments as well as maintaining hydrological balance and soil protection. It plays significant roles in biodiversity protection and recycling atmospheric gases, and provides construction materials, income and employment opportunities.
Tanzania’s wood harvest volume is difficult to estimate, but according to FAO official statistics the country’s total annual harvest of wood in 2014 was about 40 mill m3 of which more than 93% was used for firewood or charcoal production. In Tanzania, more than 90% of the population use fuelwood (i.e. charcoal and firewood) as main source of energy. Most of this fuelwood is supplied from the miombo woodlands which covers about half of the forest area in mainland Tanzania. The country’s demand of forest products is strongly increasing due to substantial economic and population growth and increased urbanization. Currently the population growth is 2.7% p.a., the economic growth is 6.9% p.a. while the urban population growth is about 5% p.a. Such growth rates imply increasing pressure on forest lands and forestry.

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