Energy & Production Flashcards
0
Q
Solar radiation: 10% reaches ground level, of the 10%….
A
10% is uv and 45% is IR.
1
Q
Solar radiation: 90% is
A
Reflected / absorbed by the atmosphere.
2
Q
Solar radiation: the remaining 45% of the 10% that reaches the ground is
A
Visible wavelengths, which can be used by plants.
20% is either reflected or transmitted.
Only 10% is used in PS.
3
Q
NPP is the rate at which
A
Plants accumulate biomass.
4
Q
GPP is the rate that
A
Plants photosynthesise.
5
Q
NPP =
A
GPP - R (respire)
6
Q
Energy transfer:
A
Food consumed (C) = faeces (F) + assimilated (A)
7
Q
Assimilated (A) =
A
Urine (U) + cellular respiration (R) + secondary production (P)
8
Q
Detritus:
A
Fragments of dead or waste organic matter, such as fallen leaves, dead bodies and faeces.
