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Botany 1050

Introduction to Botany

Spring 2008

 

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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