Lecture 5

Question 1

Rationale and Significance (4)

Answer 1

1. Forests sequester and store carbon in trees, other vegetation, litter and soils
2. Forests can help mitigate climate by sequestering carbon from the atmosphere and store it in its biomass, litter and soil
3. Carbon stored varies among forest and stand types
4. Hence, reliable estimates of biomass, litter and soil carbon are needed to understand the effect of forests on atmospheric carbon dioxide

Question 2

BIOMASS

Answer 2

– the amount of organic material in three carbon pools/layers: aboveground, litter/necromass; and belowground, expressed in terms of weight (kg or ton or Mg)

Question 3

– the amount of organic material in three carbon pools/layers: aboveground, litter/necromass; and belowground, expressed in terms of weight (kg or ton or Mg)

Answer 3

BIOMASS

Question 4

CARBON POOL

Answer 4

a reservoir or a system which has the capacity to accumulate or release carbon. Examples are forest biomass, wood products, soils and atmosphere

Question 5

a reservoir or a system which has the capacity to accumulate or release carbon. Examples are forest biomass, wood products, soils and atmosphere

Answer 5

CARBON POOL

Question 6

CARBON POOLS 2

Answer 6

Schematic diagram showing the stand
level model of the carbon dynamics of
forests. Each pool is a potential atmospheric carbon sink. Respiration (Rt) and fire are pathways that lead to carbon sources. Exports and long-term human use of forest products are flows that lead to carbon sinks

Question 7

Schematic diagram showing the stand
level model of the carbon dynamics of
forests. Each pool is a potential atmospheric carbon sink. Respiration (Rt) and fire are pathways that lead to carbon sources. Exports and long-term human use of forest products are flows that lead to carbon sinks

Answer 7

CARBON POOLS 2

Question 8

estimation of carbon stock changes and noon-CO2 emissions:
major carbon pools to consider (5)

Answer 8

1. above-ground biomass
2. below-ground biomass
3. dead wood
4. litter
   5.0 soil organic carbon