Boggs Mountain Demonstration State Forest Draft ... - Cal Fire

More documents

Recommendations

Info

Boggs Mountain Demonstration State Forest Draft Management Plan, June 2008 Forest Description Forest Structure The current average age of BMDSF timber stands is 60 years, however the age classes are not evenly distributed. The predominant age of the younger trees is 50 years, as a result of the 1949- 50 harvesting. The majority of the older trees are in the 85-90 year range. These trees were considered not merchantable during the 1949-50 harvest, and thus escaped harvest. The management direction on BMDSF is to emphasize uneven-aged management in order to create an all-aged forest structure, with stands containing a variety of age and size classes. The concept of stand age therefore becomes less relevant. Management of Boggs is directed at creating desired forest structures rather than a distribution of even-aged stands. Forest Types The Forest contains 3,313 acres of commercial timber type land and 180 acres of non-timberland. Nearly all of the forest land is well-stocked with predominantly conifer species. Conditions for natural regeneration after Setzer's 1947-1950 logging were very favorable and practically all of the areas left unstocked immediately after logging have since become stocked and support excellent stands of reproduction with ponderosa pine (Pinus ponderosa) as the predominant species. Three forest types are recognized on the Forest: ponderosa pine; ponderosa pine/Douglas-fir (Pseudotsuga menziesii) and Douglas-fir. Ponderosa pine dominates on the west slope and top of the mountain with about five percent sugar pine (Pinus lambertiana) included. The northeast slope of the mountain supports a ponderosa pine/Douglas-fir stand with various densities of ponderosa pine, sugar pine and Douglas-fir. A few small pockets of pure Douglas-fir occur on the lower slopes on the northeast side of the mountain. A very small patch of incense-cedar (Libocedrus decurrens) is located near the northeast corner of Section 12. In addition to conifers, hardwood species comprise 15 percent of the total basal area. The hardwood species present are black oak, white oak, canyon live oak, bay laurel, and madrone. Several patches of native brush species, MacNab cypress (Cupressus macnabiana), and hardwoods are located at lower elevations along the northeast boundary of the Forest. 14
Boggs Mountain Demonstration State Forest Draft Management Plan, June 2008 Figure 2. Forest vegetation types at Boggs Mountain DSF. Site Quality The average 50-year site index for the Forest is about 80 feet using Krumland and Eng (2005) site index equations. BMDSF will use Dunning's classification system for planning and Forest Practice Rule compliance (stocking and leave standards). Beyond Forest Practice Rule compliance, the site classifications exist primarily to quantify the actual site index values into classes for evaluation and growth projection purposes. Growth projections for the Forest are based on the actual site index measurements in table 1 below. 15
Page 1 and 2: Boggs Mountain Demonstration State
Page 13: Boggs Mountain Demonstration State
Page 65 and 66:
Boggs Mountain Demonstration State
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91:
show all

Boggs Mountain Demonstration State Forest Draft ... - Cal Fire

Create successful ePaper yourself

Delete template?

Save as template?