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    The first paired-watershed experiment on forested lands in the United States was conducted by the USDA Forest Service from 1909-1928 near Wagon Wheel Gap in Colorado. By the 1930's, experimental watershed studies had been initiated in southern California (San Dimas), Arizona (Sierra Ancha), and North Carolina (Coweeta). By the 1960's, there were 150 forested experimental watersheds being studied throughout the United States. Today, only a handful of these installations remain active. The trend of terminating long-term paired-watershed studies is not unique to the United States

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    Ziemer, Robert R.; Ryan, Douglas F. 2000. Current status of experimental paired-watershed research in the USDA Forest Service. EOS, Transactions, American Geophysical Union 81(48): F380.


    PSW4351, Caspar Creek, paired-watershed experiment, Forest Servic

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