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Type of Ecosystem |
Productivity (103 kcal/m2/yr) |
desert |
<0.5 |
deep ocean |
<1 |
grasslands |
0.5 to 3.0 |
deep lakes |
|
mountain forests |
|
some agriculture |
|
continental shelf |
|
moist forests |
3 to 10 |
shallow lakes |
|
moist grasslands |
|
most agriculture |
|
some estuaries |
10 to 25 |
springs |
|
coral reefs |
|
bayous |
2 cal |
60 min |
12 hr |
300 d |
104 cm3 |
1 kcal |
4,320 * 103 kcal |
cm2 min |
hr |
day |
yr |
m2 |
103 cal |
m2 year |
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