RNR 1001 : Test 4
Document Summary
Significant issue in the 1970s, less so after. Wood consumption trends region-specific, charcoal trends consistent. Fuelwood + charcoal growth close to population growth in africa, s. america. By 2030, 2. 6 billion people predicted to be dependent on biomass fuels. May be an important source of forest loss in africa and other localized areas. Reliance on biomass fuel results in several problems; health (ventilation), cost/time to collect, and local forest degradation. Convenience, reliability of supply, and time expenditures important energy use variables. Wood/charcoal use dependent on income ( energy ladder ) (ex: data on urban areas in 12 countries) Silvoarable planting trees in croplands (alley cropping) Silvopastoral planting trees in grasslands (trees in pasture to feed animals and produce wood at same time) Forest farming (mushrooms, other things that grow under canopy) Re-growth after coppicing (cut a tree down right above the ground) drought resistant. Haiti in 1940 had 40& forest, now at 1,4% Converting forests into indonesian palm oil plantation.
