Ligninger Flashcards
(27 cards)
Flux-equation, simple
Flux-equation, advanced 1
Flux-equation, advanced 2
Sink
Source (equation)
Hectare
10 000 m²
Decare
1 000 m²
Are
100 m²
Acre
4 047 m²
Mass area
= g / m²
= g m⁻²
= carbon spread over land
Mass volume
= g / m³
= g m⁻³
= carbon in a soil layer (e.g. g/cm³)
Units for flux
Changes i mass area/volum per time
Units for stock (or pool)
Mass area → g m⁻²
Mass volume → g m⁻³
Input at equilibrium, equation
Units: Net Primary Productivity
Flux
Mass / area × time
Decomposition coefficient
Determines how fast the demposition is.
Controlled by:
- Temperature
- Moisture
Respiration is often modelles as a function of…
Temperature & water
Changes in soil carbon is often modelles as a function of…
Temperature & water
Equation for changes in
- Young Carbon
- Old Carbon
↑ Kd (fordeling mellom fast fase og vann)
↑ [sorbed]
↑ Retardasjon
↓ fW, fraction in water
↓ mobility
↑ fOC (andel organisk karbon)
↑ Kd = fOC × KOC
↑ [sorption]
↓ fW, fraction in water
↓ mobility
K_DOC
↑ [DOC]
↑ mobilitet via fasilitert transport
↑ rSW og K-verdier
(forhold mellom fast stoff og vann)
↑ Retention
↑ [Sorbed]
↑ v_compound
↓ fW
