History of Eucalyptus in California History of Eucalyptus • Nursery introduction (1850s) in California Paradise must have trees Blue Gum • Eucalyptus excitement (1870s-1880s) Eucalyptus Fuel and fencing in the • Eucalyptus boom (1905-1912) Elkhorn Slough Hardwood famine Watershed • The bust (1912) Ellwood Cooper, 1876 Scientific American , 1874 Sunset , 1909 Tasmanian Blue Gum Eucalyptus globulus ssp. globulus World’s most widely grown plantation tree? Portugal (238,000 ha, ~15%!), Spain (205,000 ha) Argentina, Bolivia, Brazil, Chile, Columbia, Peru Ethiopia, South Africa China, Southeast Asia California (>16,000 ha, coast and central valley) Hawaii (>5000 ha), Arizona Australia (recently) Uses: Windbreaks, firewood, paper pulp, oil, honey
Overland Monthly , 1909 Overland Monthly , 1909 California State Railroad Museum
Sunset , 1909 Out West , 1909 Overland Monthly , 1909 Out West , 1909 Overland Monthly , 1909
Out West , 1909 Out West , 1909 Out West , 1909 Overland Monthly , 1909 Out West , 1909 Overland Monthly , 1909 The Eucalypt , 1910
Overland Monthly , 1909 Vega Overland Monthly, 1888 1931 Madroño , 1935 Blue Gum Eucalyptus in the Elkhorn Slough Watershed • Aerial photograph interpretation – 1931/1937, 1949, 1956, 1966, 1971 (b&w) – 1980, 2001 (color infrared) • Eight study sites (500 ha) • Biased – Bigger trees and better technology • Case studies – Outliers and expanding stands 1931
1980 1956 1980 1956 1980 1956
2001 1980 2001 2001 2001 2001
Brothers South 1956 1966 1971 1980 Brothers South Brothers North 1956 1966 1931 1956 1971 1980 1980 2001 Vierra Brothers North 1931 1956 1931 1956 1980 2001 1980 2001
Vierra 1931 1956 1980 2001
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