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northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

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Page 1: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley
Page 2: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

northwest corner of LSA

Eucalyptus Grove, Grinnell Natural AreaUC Berkeley

Page 3: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

The Metcalf Eucalyptus Grove ·       Grove was planted in 1877 with Tasmanian blue gum (Eucalyptus globulus) ·       Stands at the junction of the north and south fork of Strawberry Creeks. ·       Eucalyptus trees are the tallest hardwood trees in the world. This grove is the tallest in California ·       Eucalyptus planting craze swept through California in the 1870s:

-timber crisis due to the clearing of oaks in coastal regions 

-French research discovered eucalyptus’ ability to “purify the air and eliminate malaria” 

-Blue gum eucalyptus was known to be fire-proof, have medicinal value, and produce timber.

-It became a patriotic duty for Californians to plant eucalyptus.

 -Beside the use of eucalyptus in cough-drops, these attributes proved to be fiction.

 ·       They are now a fixed part of California’s landscape ranging from San Diego County to Douglas County in Southern Oregon. ·       Eucalyptus is now used for wind-breaks, firewood, aesthetics, and pulp production.

Koala bear (Phascolarctos cinereus)

a

Calculating Tree Height

h2

h1

h d a

tree heigh t h h1

1 2

tan ( )

d

Page 4: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

Grinnell Natural Area -- Eucalyptus Stand Development

Year

191

7

192

1

193

9

194

8

195

7

198

2

199

619

99

200

2

Bas

al A

rea

(m2 /h

a)

50

60

70

80

90

100

110

120

130

140

150

Page 5: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley
Page 6: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

Month

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

Water (m

m)

0

20

40

60

80

100

120

140

160

180

Actual EvapotranspirationDeficit

Month

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

Water (m

m)

0

20

40

60

80

100

120

140

160

180

A. B.

C.

Month

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

Water (m

m)

0

20

40

60

80

100

120

140

160

180B.

Wet tropical forest temperate deciduous forest

Oak woodland/savannaD. dry grassland

JAN

FE

B

MA

R

AP

R

MA

Y

JUN

JUL

AU

G

SE

P

OC

T

NO

V

DE

C

mm

of

wat

er

0

20

40

60

80

100

120

Page 7: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

subalpine spruce-fir forestHawaiian ohi`a lehua forest

Page 8: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

Ecosystem study in an oak woodland

Page 9: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley
Page 10: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

Ecosystems are dynamic

Page 11: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley
Page 12: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley
Page 13: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

Forests in California

• 18.2 million ha of forests• 6.5 million ha of commercial forests • $575 million stumpage value

– 50% federal– 50% private

• 62% nonindustrial• 38% industrial

• Supply: aesthetics, biodiversity, water, wood products

Page 14: northwest corner of LSA Eucalyptus Grove, Grinnell Natural Area UC Berkeley

Old-growth stand in the Plumas National ForestSpecial Use Permit (Baker Research Plot)