ผู้เขียน: Christopher Eagar

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1 หนังสืออิเล็กทรอนิกส์โดย Christopher Eagar

Mary B. Adams & Christopher Eagar: Ecology and Decline of Red Spruce in the Eastern United States
In the early 1980s there were several published reports of recent, unexplained increases in mortality of red spruce in the Adirondack Mountains and the northern Appalachian Mountains of the eastern U …
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