Tropical rainforest Flashcards
what is carbon capture and storage?
uses technology to capture carbon dioxide emissions from coal-fire power stations and industry
how much could CSS cut emissions by?
19%
what happens during CSS?
once the carbon is captured the carbon gas is compressed and transported by pipeline to an injection well
it is then injected as a liquid into reservoirs such as aquifers and deposits of fossil fuels
Boundary dam Canada
aims to cut c02 emissions by 90%, this is the equivalent to 1 million tonnes of carbon per year.
what are the disadvantages of the boundary dam canada?
economic viability - relies on reservoirs being empty
very costly
unsure of future implications
modifying photosynthesis plantation forests.
plantation forests which compromise an estimated 7% of global forest area are particularly effective in absorbing c02 compared to natural forests
what are major causes of land use changes?
Farming deforestation
what is carbon farming?
carbon farming is where one type of crop is replaced by another that has a greater productivity and can absorb more carbon from the atmosphere
what are the several strategies aimed at reducing the rate of deforestation?
- consumers are encouraged to only buy wood certified by the forestry stewardship council
- cou tries and organizsations can offset their carbon emissions through payments. the money then goes to forests being protected
what do grasslands do?
offers a global greenhouse gas mitigation potential of 810 million tonnes of co2
what can soil carbon storage in grasslands be improved by?
avoidance of overstocking of grazing animals
adding manures and feritlisers that have a direct impact on soil organic carbon
croplands - techniques for improving SOC includes-
reduced or no tillage - no ploughing avoid accelerated decomposition of organic matter.
the use of animal manure instead of fertlisisers so biomass can be returned to the soil
forested land and tree crops
forests store large amounts of c02 resulting in the amount in the atmosphere
improved transport/aviation practices
in 2013 the global aviation industry produced 705 million tonnes of co2
the water cycle in the amazon rainforest
precipitation is very high due to high humidity and unstable weather conditions
dense forest canopy intercepts up to 75% of rainfall
out of this 75% half is used by plants and the rest returns to the atmosphere by evapotranspiration and some infiltrates into soils