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Science Notes
Lesson 5
Lesson 8
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Primary
Productivity Table
|
Ecosystem Type |
Net Primary Productivity
(Kilocalories / square meter / year) |
Approximate Kilocalories
per square meter per day |
Growing Season |
Rainfall per year in
inches |
| Tropical Rain Forest |
9000 |
25 |
365 days |
More than 60 |
| Estuary (the
place where a river meets the sea) |
9000 |
25 |
|
|
| Swamps and Marshes |
9000 |
25 |
|
|
| Savanna (grass,
scattered trees, little or no winter snow) |
3000 |
8 |
|
|
| Deciduous Temperate Forest |
6000 |
16 |
more than 120 days |
30-60 |
| Boreal Forest (Evergreen Coniferous Forest) |
3500 |
10 |
less than 120 days |
12-33 |
| Temperate Grassland (cold winters) |
2000 |
6 |
|
10-30 |
| Polar Tundra |
600 |
2 |
|
Less than 10 |
| Desert |
< 200 |
1 |
|
Less than 10 |
This table is from http://www.geog.ouc.bc.ca/physgeog/contents/9l.html
an online Geology course created by Dr,
Michael Pidwirny at Okanagan College, British Columbia,
Canada.
(Dr Viau's additions are in red)
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