dying trees
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Forest declines in Central Europe: The first trees to be affected by pollution were the silver firs. They lost many needles and soon many of them began to die off. Then the needles of the Norway pines began to yellow and die. Next Pines began to show thinned needles up top and finally the hardwoods, such as beech and oak, began to show similar leaf loss. Most of the forests in West Germany have early leaf and needle loss and discoloration. Fir trees have the most extensive damage, but other trees are suffering as well.
Red Spruce and Fraser Fir in the Eastern United States: Red spruce is found in North Carolina up through Maine. The red spruce found along the eastern mountain chain is showing a decrease in growth and a high death rate. The branch tips begin to die and the top needles turn yellow and die. This trend continues wherever the trees are found. Over the past 25 years these species have declined by half in the Northeast.

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[temperate forests] [dry coniferous forests]

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