Fuelwood as an energy source
Source: http://blog.worldagroforestry.org/wp-content/uploads/2013/10/Firewood-Rwanda2012-byDaisyOuyaICRAF1.jpg
Source: http://www.mhhe.com/biosci/pae/environmentalscience/olc_linkedcontent/cunningham06es/cs6_22.htm
Advantages of fuelwood as a source of energy:
- Large potential supply in some areas
- Moderate costs
- No net CO2 increase if harvested and burned sustainably
- Plantation can be located on semiarid land not needed for crops
- Plantation can help restore degraded lands
- Can make use of agricultural, timber, and urban wastes
Disadvantages of fuelwood as a source of energy:
- Nonrenewable if harvested unsustainably
- Moderate to high environmental impact
- CO2 emissions if harvested and burned unsustainably
- Low photosynthetic efficiency
- Soils erosion , water pollution, and loss of wildlife habitat
- Plantations could compete with cropland
- Often burned in inefficient and polluting open fires and stoves
Source: http://slideplayer.com/slide/6391530/
No comments:
Post a Comment