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漏 2024 | 老夫子传媒
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fir trees
  • RVWithTito, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=8771491
    Bugs Killing Oregon Douglas Firs By Thousands
    Geoffrey Riley
    It's not that hotter and drier summers kill trees by themselves. But when winters are mild, creatures that kill the trees don't die, and continue to feast鈥�
  • David Douglas and the Douglas-Fir
    Douglas-fir trees grow abundantly in Northern California and Southern Oregon. Its wood, one of the hardest softwoods, is a favorite framing timber, while鈥�