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Changement climatique - CNRS

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<strong>Changement</strong>s phénologiques observés<br />

Date de débourrement arbres nord-américains<br />

145<br />

140<br />

135<br />

130<br />

125<br />

120<br />

115<br />

110<br />

105<br />

100<br />

* * * * * * * *<br />

1883-1912<br />

1990-2003<br />

Juglans nigra<br />

Carya ovata<br />

Quercus velutina<br />

Quercus alba<br />

Quercus macrocarpa<br />

Ulmus americana<br />

Gymnocladus dioica<br />

Aesculus hippocastanum<br />

Fraxinus americana<br />

- 1.08 jours / décennie

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