Land use change Flashcards
1
Q
What % global C release is land use change responsible for
A
10%
2
Q
Effect of conversion to agriculture
A
Burns/fells forests or drains wetlands, livestock compact soil, cattle rumination emits CH4 (US cattle 20% emissions), rice emits 20% CH4 (main food for 50%), aeration
3
Q
Effect of conversion to shifting cultivation
A
Rotating fields to allow soil recovery and regrowth, uses more land, insufficient for large population, may just shorten rotation time
4
Q
Effect of abandoning agricultural land
A
Allows natural ecological restoration but can cause erosion and matter decay
5
Q
Effect of afforestation
A
C sink protecting against erosion and flooding depending on variety and condition
