Field Notes
U.S. Fish & Wildlife Service
Field Notes Entry   
San Bernardino National Wildlife Refuge Continues RiparianHabitat Restorationon Refuge
Southwest Region, February 10, 2011
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For the third time in the last four years, Refuge staff has conducted pole planting in Hay Hollow Wash on the refuge.  While not as big of a project as some of the planting efforts on other refuges that are on major rivers, such as the Colorado or Rio Grande, thirty-eight trees into a small wash such as Hay Hollow Wash can do wonders for wildlife and water.  As with most washes on the refuge years of heavy grazing and other agricultural uses took a toll on the water table and caused deep down cutting to occur.  By planting native trees into these washes, staff help stabilize soils, thereby decreasing erosion and providing better conditions for other vegetation to colonize.  In addition, the trees that are planted, when mature, will provide valuable nesting habitat for various migratory and resident bird species that use the refuge.  Another benefit to planting trees in these washes is to provide shade to the washes and reduce evaporation of water within the streambeds.  In addition to pole planting, refuge staff also constructs erosion control structures, such as rock and wire gabions to catch sediment during floods or other high flow rate situations, to reduce and correct erosion of streams.

Contact Info: Christopher Lohrengel, 520-364-2104 x.106, chris_lohrengel@fws.gov
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