Livestock systems: Difference between revisions
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Livestock production is related to a wide range of the environmental issues, and the consequences of changes in the livestock system can be studied in the IMAGE framework: | Livestock production is related to a wide range of the environmental issues, and the consequences of changes in the livestock system can be studied in the IMAGE framework: | ||
#Expansion of grazing land and particularly arable land for feed crop production, is required to support increasing livestock numbers. According to Bouwman et al. (2005) most arable land expansion is to increase feed production; | #Expansion of grazing land and particularly arable land for feed crop production, is required to support increasing livestock numbers. According to Bouwman et al. (2005) most arable land expansion is to increase feed production; | ||
#Large amounts of methane ( | #Large amounts of methane (CH<sub>4</sub>) emitted by ruminants during enteric fermentation are the second major source of greenhouse gas emissions after CO2; | ||
#Excreta from all livestock categories is a source of ammonia, methane, nitrous oxide and nitric oxide; | #Excreta from all livestock categories is a source of ammonia, methane, nitrous oxide and nitric oxide; | ||
#Odour nuisance and nitrate leaching to groundwater are major local-scale problems; | #Odour nuisance and nitrate leaching to groundwater are major local-scale problems; | ||
Revision as of 10:34, 1 July 2014
Parts of Livestock systems
| Component is implemented in: |
| Components: |
| Related IMAGE components |
| Projects/Applications |
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| Models/Databases |
| Key publications |
| References |
Key policy issues
- What are the impacts of increasing livestock production on land use, greenhouse gases and other emissions to air and surface water?
- How does the use of marginal lands for grazing increase the risk of degradation and loss of productivity, inducing more forest clearing?