GM-23. The use and perpetuation of native species will be emphasized. When restoring or rehabilitating disturbed or degraded rangelands, nonintrusive, non-native plant species are suitable for use where native species (a) are not available, (b) are not economically feasible, (c) cannot achieve ecological objectives as well as non-native species, and/or (d) cannot compete with already established non-native species.
GM-24. Intensity, season and frequency of use, and distribution of grazing use will be managed to provide for growth and reproduction of plant species needed to reach DPC (Desired Plant Community) objectives.
GM-25. Grazing on designated ephemeral (annual and perennial) rangeland may be authorized if the following conditions are met:
Ephemeral vegetation is present in draws, washes, and under shrubs, and has grown to usable levels at the time grazing begins; as well as sufficient surface and subsurface soil moisture exists for continued plant growth.
Serviceable waters can provide for proper grazing distribution.
Sufficient annual vegetation will remain on site to satisfy other resource concerns (e.g. watershed, wildlife, wild horses, and burros).
Monitoring is conducted during grazing to determine if objectives are being met.
GM-26. Grazing management practices will target populations of noxious weeds that can be controlled or eliminated by approved methods.
GM-27. DPC objectives will be quantified for each allotment through the rangeland monitoring and evaluation process. Ecological site descriptions available through the Natural Resources Conservation Service and other data will be used as a guide for addressing site capabilities and potentials for change over time. These DPC objectives are vegetation values that BLM is managing over the long term. Once established, DPC objectives will be updated and monitored by the use of indicators for Land Health Standard Three.