In 2008, OBEC set up an 80-acre demonstration plot to test strategies for removal of tamarisk, a non-native, invasive shrub, and restoration of native vegetation on the Walker River Paiute Reservation Tribal Lands south of Schurz, NV. As part of the cooperative agreement between OBEC, Tribal members, and the U.S. Fish and Wildlife service, Tribal members were employed to perform many of the physical tasks and were responsible for running and maintaining the irrigation system. To limit the plant’s ability to re-sprout, tamarisk root crowns were removed using an excavator. The remaining biomass was either chipped and used for mulch in the native revegetation process or placed in windrows to protect native plants from damage caused by high winds. Soils were tested to determine if the soil was suitable for native plants. Native shrubs and grasses, which were seeded in the fall, colonized the demonstration plot the following spring. This demonstration plot provided knowledge necessary for tamarisk management over a larger spatial scale.
In 2009, funding was provided to expand treatments and design a five-year plan for tamarisk removal and management in over 1,600 acres of Tribal Lands (Modification 0001). The plan outlined methods tested in the demonstration plot to remove tamarisk and establish native plant communities. The plan also provided a strategic plan for the continued control of tamarisk and prioritized areas for treatments based on feasibility of cattle exclusion and availability of irrigation.
This project has been completed.