Beaver Creek Watershed - Measuring Results of Treatments
Before any vegetation was changed, runoff from each watershed was measured
for several years to determine streamflow variations under pretreatment
conditions. During this time, the quantity and quality of other natural
resources also were inventoried.
With pretreatment measurements completed, six watershedsBar-M and
Watersheds 2, 5, 13, 15, and 18were designated as untreated "controls".
They were shown to respond to environmental influences in a manner similar
to the watersheds where experimental treatments would be applied.
Measurements continue on both experimental and control watersheds for
several years after treatments are applied. Streamflow, sediment production,
and water quality are monitored regularly, and other resources are reinventoried
periodically. Changes caused by the management practices applied to the
experimental units are evaluated by comparing posttreatment values with
pretreatment data and with data from the untreated "control"
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