Carbon and Water cycle in TRF - Amazon Basin

what percentage of TRF in Brazil

70%

Why avg temp + ppt high?

Hadley cell, low pressure, and equator

Why is equator important

huge solar radiation input.

High angle of incidence means

less scattering of solar radiation

Inter tropicl convergence zone

band of low pressure around the earth, lies on equator

type of rainfall in trf

convectional

what is convection

movement of particles through substance, transfers heat form hot areas to cooler areas

seasonal rain due to

axil tilt, less intense convection so less rainfall

what percentage of precipitation is recycle by evapotranspiration

60%

how much precipitation a year

above 2000mm a year

warm air

holds more moisture

geology of amazon

impermeable, crystallline rocks

river can be seen as

a dynamic store

relief

extensive lowlands

extensive lowlands mean

flooding may occur anually

NPP units

g/m2/year

TRF NPP is

2500 g/m2/year

Biomass store TRF

400-700 t/ha

TRF major reservoir of carbon

absorbs 2.4 b tonnes a year

poor soils but still highest NPP emphasizes

extent organic matter is decomposed, mineralised and recycled.

Outcrops of limesotne found in

The Andes

outcrops of limestone store carbon in

slow carbon cycle.