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PRIMARY SUCCESSION AT GLACIER BAY, ALASKA
Year |
Dominant species |
(%) Cover |
Soil pH |
Litter (kg m2) |
0-15 |
moss, fireweed, horsetail, Dryas |
<50 |
8.0 |
0 |
15-35 |
willow & alder shrubs, cottonwood |
85 |
7.5 |
1.0 |
35-80 |
Alder thicket |
100 |
6.0 |
3.0 |
80-115 |
Transition to forest: alder, Sitka spruce |
100 |
5.0 |
6.0 |
115-200 |
Sitka Spruce forest |
100 |
4.8 |
9.0 |
>200 |
Hemlock-spruce forest |
100 |
? |
? |
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