atmosphere Flashcards
1
Q
Haber-Bosch Process
A
industrial N fixation, takes N2 out of the atmosphere and generates ammonium
2
Q
most important factor controlling nitrification
A
abundance of NH4
3
Q
types of BNF (biological nitrogen fixation)
A
- free-living
- associative
- symbiotic
4
Q
symbiotic nitrogen fixation
A
occurs mostly with legumes but symbiotic associations are very specific
5
Q
are forests more N limited?
A
yes
6
Q
are tropics more abundant in N?
A
yes
7
Q
what ecosystems are more phosphorus limited
A
tropics
