water and carbon -amazon rainforest case study (carbon cycle in the amazon)

Question 1

what percentage does deforestation account for as being a source of carbon?

Answer 1

.10%
.deforestation is the second largest anthropogenic source of carbon dioxide in the atmosphere after burning of fossil fuels

Question 2

how does deforestation impact the carbon cycle in the amazon?

Answer 2

.photosynthesis rates drop
.respiration rates drop
.decomposition rates drop
.soil sequestration
.runoff
.30-60% of carbon is lost to the atmosphere

Question 3

how does soil sequestration impact the carbon cycle?

Answer 3

.rain will wash ash into the ground, this increases the carbon content of the soil however this will soon be used up and wont be replenished by growing trees so soil carbon content decreases in the long term

Question 4

how does runoff impact the carbon cycle?

Answer 4

.some of the carbon will leave the ecosystem through increased surface runoff