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001598 All aquatic habitat would improve under management emphasizing habitat quality and protection, and the net impact would be beneficiaL Forest and Woodland Management Managing 1,094 acres (19 percent) of commercial forest lands for sustained yield would permit an annual harvest of 55 Mbf of timber. Woodland management on 6,982 acres (56 percent) of the productive operable woodlands would result in annual harvests of 370 cords of fuelwood. Eliminating harvests on 1,910 acres of commercial forest land (CFL) located on crucial winter range in the Trickle Mountain area would reduce annual timber production by 95Mbf. Special harvesting techniques necessary to maintain values in 10 ACECs would increase production costs on 1,940 acres of CFL and 1,190 acres of productive operable woodlands. Eliminating harvest on I, I 10 acres of productive operable woodlands on areas classified as semiprimitive nonmotorized would reduce annual fuelwood production by 59 cords. Protecting scenic qualities in VRM Class II acres would require special harvesting techniques on 1,660 acres of CFL and 7,685 acres of productive operable woodlands. Final harvest levels would not be reduced, but production costs would be increased because less volume could be removed at anyone harvest entry. Eliminating harvests on 740 acres of potential wildlife habitat would reduce harvest levels by 37 Mbf (13 percent). Timber management limitations to meet wildlife. recreation, and VRM objectives would eliminate sustained-yield production on 4,675 acres (80 percent) of CFL resulting in an annual loss of 233 Mbf of timber. These limitations would also preclude annual harvests on 5,500 acres (44 percent) of productive operable woodlands resulting in an annual loss of 290 cords of fuelwood. Forested lands, not included in the allowable harvest base acreage, would grow through successional vegetation stages as influenced by the lack of fire, in most cases, and little or no control of forest pests. Lands and Realty Management Emphasis would be given to acquisition of lands with significance for special plant and animal species, paleon- tological, historical and archeological values, riparian areas, wildlife habitat, and recreation areas (especially along the 4-19 ENVIRONMENTAL CONSEQUENCES Rio Grande River). Acquisition efforts could provide secondary benefits for forest and woodlands managemen~ livestock managemen~ and minerals management. Lands with riparian wnes, wildlife habitat, and recreation areas would continue to be administered by BLM unless, through exchange, the benefits received would equal the benefits exchanged. Disposal of suitable isolated tracts would improve manageability. Exchange of these tracts, however, is preferred when acquisition of desired resources and consolidation of BLM lands would result. AU withdrawals for protection of wildlife habitat and recreation areas would be retained. All six cultural sites, which are either NRHP or eligible for NRHP would be withdrawn. Potential disruptive activities created by mining activities and other nondiscretionary actions would not occur. Powersite withdrawals would be retained pending the outcome of a formal withdrawal review with the exception of the waterpower site withdrawal on the Rio Grande River Corridor, which would be terminated. Full protection or mitigation of impacts caused by rights- of-way proposals would be provided for the following resources: special plants and animals, paleontological, historical, archaeological, riparian wnes, visual, and wildlife habitat. AU other ROWs must be compatible with the recreation opportunity spectrum (ROS) guidelines. J ~ Areas of Special Concern Resource values on about 138,605 acres (100 percent) would be given special attention to ensure they are not irreparably damaged by any resource use. Recreation Management Intensive ~eation management of the Rio Grande River Corridor SRMA (6,016 acres), which includes 1,760 acres of wild and scenic proposal, and Blanca SRMA (7,750 acres) would enhance recreation opportunities on 13,766 acres (3 percent). Extensive recreation management would maintain recreation opportunities on the remaining 506,911 acres (97 percent). Management of Segments A and B of the Rio Grande River Corridor (see Appendix E) as an SRMA would enhance recreation values on 4,256 acres. Management of Segment C of the Rio Grande River Corridor (Appendix E) as a wild and scenic river would enhance the primitive or wilderness type of experience and would protect wildlife on 1,760 acres. Table 4-12 shows OHV designated acreages. , I; " I, I I I