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FSC: Your Guide to the Good Wood |
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A comparative life-cycle analysis of environmental impacts shows that wood is a better choice than steel or concrete. Graph adapted with permission from Robert Kozak and Christopher Gaston, "Life-Cycle Analysis," presented at the Workshop on Climate and Forestry, Orcas Island, WA, November 13-16, 2001. Similar findings are also documented by Meil et al.: |
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Not just trees - a forest |
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"Red Alder is very beneficial to other plants when it comes to enriching the soil. Its litter and roots are known to increase the organic content of the soil on which it resides. In coastal British Columbia, the nutrient that limits plant growth the most is nitrogen. Red Alder has the ability to increase the nitrogen content of the soil through means of nitrogen fixation. Nitrogen fixation occurs by the alder's symbiotic actinomycetes (Pojar et. al, 1994). In a study done at a plantation on Vancouver Island, it was found that the stem growth of Douglas-fir was increased 2.5 times when the conifer was grown together with Red Alder (Haeussler et. al, 1990)." "Because the commercial value of alder has traditionally been lower than that of its associated conifers, most forest managers have tried to eliminate the species from conifer stands." |
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"Forest management shall conserve biological diversity and its associated values, water resources, soils, and unique and fragile ecosystems and landscapes, and, by so doing, maintain the ecological functions and the integrity of the forest." |
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Growing opportunities |
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"But as the years went on, the natural resources that people here depended on began to take a turn for the worse. Logging outstripped the regrowth of local forests, and returns of wild salmon dwindled... The final blow came last year when the Asian financial crisis caused a disastrous drop in prices for heavy brown paper and forced the shutdown of the area's biggest employer, the International Paper Co. mill. Built in 1964, the International Paper mill in the nearby community of Gardiner eventually employed more than 300 people. But now that its workers have been cut loose, the effect of losing a $15 million annual payroll can be seen along Main Street, where several empty storefronts are sprouting `For Rent' signs." "In a move that marks the end of an era on the Mendocino Coast, the last lumber mill in Fort Bragg will close this summer. Mendocino Forest Products Co. announced Monday it will shut the 52-year-old mill Aug. 1. The closure will displace 59 employees. Some will transfer to jobs at other Mendocino Forest Products facilities in Ukiah and Calpella. The mill -- the last on the Mendocino Coast -- fell victim to a decline in the supply of local logs and the difficulty of obtaining timber at affordable prices
When the Fort Bragg mill closes, Mendocino County will have only four lumber mills left, down from about 200 mills that sprouted up in the county from World War II until the mid-1960s. Local sawmill operators said padlocking the mill will permanently alter the character of Fort Bragg, which only last year saw the demise of the venerable Georgia-Pacific Corp. mill and the loss of its 125 jobs." |
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"In November 1998, L-P and the Chilean timber firm Chilena Bomasil S.A. agreed to form a Chilean joint venture company to build and operate an oriented strand board (OSB) plant located on property currently owned by Bomasil in the Municipality of Panguipulli, Chile, with a majority ownership of the joint venture company to be held by L-P. It was anticipated that the plant would begin operating in late 1999." |
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"Forest management operations shall maintain or enhance the long-term social and economic well being of forest workers and local communities." |
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"Population (2000) 3,300 (p. 8) Forestry related employment contributes income to 303 Tribal members on an annual basis. (p. 9) AAC [annual allowable cut] is below growth. (p. 18)" |
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Wood for the long term |
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"A recent analysis of results from 17 long-term thinning trials, some extending to maximum ages of about 70 years on the best sites to 117 years on a poor site, showed that MAI [mean annual increment, the average amount of wood created per year over the lifetime of the stand] has not culminated [peaked] in any of the stands examined." Actual yield reductions for stands repeatedly thinned are as follows, by site class: 27% (comparing a 100-year rotation to two 50-year rotations); 38% (comparing a 79-year rotation to two 42-year rotations); 42% (comparing a 100-year rotation to two 50-year rotations); 63% (comparing an 89-year rotation to two 45-year rotations). |
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"6.3.f.3. If regeneration harvest ages do not approach culmination of mean annual increment (CMAI, see Glossary), retention approaches the upper end of the range required in 6.3.e.5. |
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Clean water |
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"The frequency of landslides within recently clear-cut areas and along forest roads was much higher than for comparable watersheds in middle elevation wilderness or unmanaged areas. Increased rates of landsliding was clearly associated with forest land use activities." |
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"6.5. Written guidelines shall be prepared and implemented to: control erosion; minimize forest damage during harvesting; road construction; and all other mechanical disturbances; and protect water resources. Applicability note: Soil cover and fertility are maintained in a condition that is sufficient to: (1) minimize soil erosion, (2) protect soil microbial communities, (3) protect inherent site productivity, (4) protect surface water quality, and (5) protect the natural processes in aquifers
Logging operations and the use of roads and skid trails occur only when soil compaction, erosion, and sediment transport do not result in degradation of water quality, site productivity, or habitats."" |
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"Water quality is exceptional in the watershed due to a concerted effort by the City of Astoria to minimize sediment from roads, skid trails, and harvest units." (p. 15) Annual cut of 2 million BF (p. 5) converted to number of houses under assumption of 14,000 BF/house. |
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Healthy habitat |
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"Numerous correlative studies have shown the density of many amphibian species to be lower in clearcuts compared to mature forests. Terrestrial salamanders, in particular, appear to be reduced by harvesting practices, with a median 3.5-fold difference in abundance between clearcut and forested sites (deMaynadier and Hunter 1995)." |
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"The alternative to set a stand aside (with no management) with the expectation that natural aging and disturbances will eventually produce diverse structure with increased biodiversity sacrifices all economic value, or about $4000 per acre if the stand is ready for a first thinning, or in excess of $12,000 per acre if the stand has reached age 50 and is ready to harvest. Late seral-like structures from these young set-asides would not likely be reached until much later than under managed alternatives--perhaps more than 100 years later. Long rotation wildlife treatments or selective harvest treatments within riparian buffers can greatly reduce the cost of no management buffers while more rapidly producing the diverse forest structures desired for habitat." |
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Greater fire safety |
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"FDCs [fire damage classes] were roughly uniformly distributed among the plantations, while in the uncut/partial-cut stands they were skewed somewhat toward the lower FDCs. A larger proportion of higher FDCs in plantations is to be expected because the smaller trees are more easily damaged." "In some forest types -- including Douglas-fir, ponderosa pine, and moist tropical -- large intact blocks of healthy mature forests, or nondecadent, old-growth forests are less susceptible to catastrophic fires than young or fragmented forests. Landscapes dominated by these types buffer and dampen the spread of crown fires and hence preserve the forest structure. Once some threshold proportion of the landscape becomes fragmented and permeated by flammable young forests or grasses, the potential exists for a self-reinforcing cycle of catastrophic fires -- an absorbing landscape crosses a threshold and becomes a magnifying one." |
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"Many forest stands in Washington are overcrowded. Growing too close causes stressed and unhealthy trees -- which can result in several problems. When trees compete for sunlight and moisture, results are: High wildfire hazard - When crowns of adjoining trees touch, fire can spread quickly." |
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Carbon storage |
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"We compared carbon storage and fluxes in young and old ponderosa pine stands in Oregon, including plant and soil storage, net primary productivity, respiration fluxes, eddy flux estimates of net ecosystem exchange (NEE), and Biome-BGC simulations of fluxes. The young forest (Y site) was previously an old-growth ponderosa pine forest that had been clearcut in 1978, and the old forest (O site), which has never been logged, consists of two primary age classes (50 and 250 years old). Total ecosystem carbon content (vegetation, detritus and soil) of the O forest was about twice that of the Y site (21 vs. 10 kg C m2 ground), and significantly more of the total is stored in living vegetation at the O site (61% vs. 15%)... The biological data show that above-ground net primary productivity (ANPP), NPP and net ecosystem production (NEP) were greater at the O site than the Y site." For redwood forests, see also Prichard et al. |
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Facts & Footnotes By Seth Zuckerman, Barry Sims, Bettina von Hagen, and Howard Silverman |
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