Poo

Question 1

What was the rate of deforestation from year … to …?

Answer 1

2000-2007

Over 1900km^2 annually

Question 2

Amazon size (countries+area)

Answer 2

8 countries

2.1million square miles of land

Question 3

Water balance definition

Answer 3

The balance between inputs and outputs in the water cycle, open system regionally.

How much water is stored in a system, water surplus when precipitation high, water deficit when evapotranspiration is high.

Question 4

How much interception takes place in the dense canopy?

Answer 4

Up to 75% of rainfall

Question 5

How much did river discharge increase and where

Answer 5

south east Amazon

As much we 20%

Question 6

Example of positive feedback loop Amazon

Answer 6

Flooding washes away plants, less interception and evapotranspiration.

Question 7

Agriculture impact on water balance

Answer 7

Soil compaction more surface runoff.

Topsoil deforested infiltration and throughflow

Question 8

Link between water and carbon cycle

Answer 8

—decrease in biosphere of carbon deforesting. Wood is 50% carbon

Less evapotranspiration and therefore water surplus.

climate change, extreme weather events

Question 9

Amazon carbon source/sink?

Answer 9

Source

Over the past 20 years Amazon has emitted 13% more co2 than it absorbed.