Salvage logging

Last updated

Salvage logging is the practice of logging trees in forest areas that have been damaged by wildfire, flood, severe wind, disease, insect infestation, or other natural disturbance in order to recover economic value that would otherwise be lost. [1]

Contents

Although the primary motivation of salvage logging is economic, it has also been suggested that salvage logging may reduce erosion, reduce intensity [2] of future wildfires, and slow buildup of pest insects. [3] However, there is little evidence to support such claims, [4] and most evidence supports the view that salvage logging is harmful to forest health and function. [5]

As with other logging operations, the harvesting may be either by selection, thinning or clearcutting, and a regeneration plan may be put in place after the logging. Salvage logging may include removal of remaining live trees in predominantly dead stands.

Examples

One highly publicized instance of salvage logging followed the Biscuit Fire in Oregon and California in 2002. After the fire, the United States Forest Service salvaged timber burned by the fire. The process was expedited when President George W. Bush signed the Healthy Forests Restoration Act allowing salvage logging to occur more quickly and with reduced threat of lawsuits. [6] President Bill Clinton signed an earlier piece of legislation promoting salvage logging (commonly referred to as the Salvage Rider) as part of the Omnibus Rescissions Bill on July 27, 1995. [7]

Forests across western North America impacted by mountain pine beetle infestations were salvage logged. [8] Salvage logging after windthrow is also common. [9]

Ecological impacts

Salvage logging is of particular concern ecologically because disturbed landscapes tend to be under appreciated and undervalued, and therefore more imperiled than other successional stages on the landscape. [10] [11] Concerns include simplification of forest structure, [9] degradation and destruction of wildlife habitat, [12] little or no impact to future fire risk, changes in nutrient cycling, and increased erosion. [9]

As a part of adaptive management strategies designed to meet objectives in long term forestry planning, e.g. the Northwest Forest Plan, [13] among other actions, salvage logging operations generally take the large snags and surviving trees, leaving lower density stands dominated by small-diameter snags. [14] Bird species diversity can be negatively impacted by this structural change because cavity nesters preferentially nest in larger trees. [15] [16] There is not strong evidence that salvage logging consistently affects insect diversity. [17] [18]

Proponents argue that, among other benefits, salvage logging reduces the harmful effects of future fires in the logged area and is a prelude to managed reforestation protocols. [19] Opponents maintain that the costs and benefits of salvage logging have not been scientifically studied, and that there is some evidence that under some circumstances, the practice may increase damage from future fires and reduce natural regeneration due to soil disturbance and the addition of logging slash. [4] [20]

Salvage logged sites have increased erosion and reduced forest productivity. [3] [21]

Controversy

In the United States, salvage logging is a controversial issue for two main reasons. Legal provisions for salvage logging can be used to justify cutting down damaged trees in areas that are otherwise protected from logging. [6]

Salvage logging may also encourage arson, either after a failed lumber sale or to gain permission to log in protected areas, such as old growth forest or regions set aside for the protection of endangered species. [22] [23]

See also

Related Research Articles

<i>Eucalyptus regnans</i> Species of eucalyptus

Eucalyptus regnans, known variously as mountain ash, swamp gum, or stringy gum, is a species of medium-sized to very tall forest tree that is native to the Australia states of Tasmania and Victoria. It is a straight-trunked tree with smooth grey bark, but with a stocking of rough brown bark at the base, glossy green, lance-shaped to curved adult leaves, flower buds in groups of between nine and fifteen, white flowers, and cup-shaped or conical fruit. It is the tallest of all flowering plants; the tallest measured living specimen, named Centurion, stands 100 metres tall in Tasmania.

<span class="mw-page-title-main">Controlled burn</span> Technique to reduce potential fuel for wildfire through managed burning

A controlled or prescribed (Rx) burn, which can include hazard reduction burning, backfire, swailing or a burn-off, is a fire set intentionally for purposes of forest management, fire suppression, farming, prairie restoration or greenhouse gas abatement. A controlled burn may also refer to the intentional burning of slash and fuels through burn piles. Fire is a natural part of both forest and grassland ecology and controlled fire can be a tool for foresters.

<span class="mw-page-title-main">Coarse woody debris</span>

Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests and in rivers or wetlands. A dead standing tree – known as a snag – provides many of the same functions as coarse woody debris. The minimum size required for woody debris to be defined as "coarse" varies by author, ranging from 2.5–20 cm (1–8 in) in diameter.

<span class="mw-page-title-main">Old-growth forest</span> Type of forest

An old-growth forest, sometimes synonymous with primary forest, virgin forest, late seral forest, primeval forest, first-growth forest, or mature forest, is a forest that has attained great age without significant disturbance, and thereby exhibits unique ecological features, and might be classified as a climax community. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. Barely one-third of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitats that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debris.

<span class="mw-page-title-main">Bark beetle</span> Subfamily of beetles

A bark beetle is the common name for the subfamily of beetles Scolytinae. Previously, this was considered a distinct family (Scolytidae), but is now understood to be a specialized clade of the "true weevil" family (Curculionidae). Although the term "bark beetle" refers to the fact that many species feed in the inner bark (phloem) layer of trees, the subfamily also has many species with other lifestyles, including some that bore into wood, feed in fruit and seeds, or tunnel into herbaceous plants. Well-known species are members of the type genus Scolytus, namely the European elm bark beetle S. multistriatus and the large elm bark beetle S. scolytus, which like the American elm bark beetle Hylurgopinus rufipes, transmit Dutch elm disease fungi (Ophiostoma). The mountain pine beetle Dendroctonus ponderosae, southern pine beetle Dendroctonus frontalis, and their near relatives are major pests of conifer forests in North America. A similarly aggressive species in Europe is the spruce ips Ips typographus. A tiny bark beetle, the coffee berry borer, Hypothenemus hampei is a major pest on coffee plantations around the world.

<span class="mw-page-title-main">Fire ecology</span> Study of fire in ecosystems

Fire ecology is a scientific discipline concerned with the effects of fire on natural ecosystems. Many ecosystems, particularly prairie, savanna, chaparral and coniferous forests, have evolved with fire as an essential contributor to habitat vitality and renewal. Many plant species in fire-affected environments use fire to germinate, establish, or to reproduce. Wildfire suppression not only endangers these species, but also the animals that depend upon them.

<span class="mw-page-title-main">Snag (ecology)</span> Dead tree

In forest ecology, a snag refers to a standing, dead or dying tree, often missing a top or most of the smaller branches. In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as coarse woody debris. Snags provide habitat for a wide variety of wildlife but pose hazards to river navigation. When used in manufacturing, especially in Scandinavia, they are often called dead wood and in Finland, kelo wood.

<span class="mw-page-title-main">Secondary succession</span> Redevelopment of an encology after an event that changes it radically

Secondary succession is the secondary ecological succession of a plant's life. As opposed to the first, primary succession, secondary succession is a process started by an event that reduces an already established ecosystem to a smaller population of species, and as such secondary succession occurs on preexisting soil whereas primary succession usually occurs in a place lacking soil. Many factors can affect secondary succession, such as trophic interaction, initial composition, and competition-colonization trade-offs. The factors that control the increase in abundance of a species during succession may be determined mainly by seed production and dispersal, micro climate; landscape structure ; bulk density, pH, and soil texture.

<span class="mw-page-title-main">Disturbance (ecology)</span> Temporary change in environmental conditions that causes a pronounced change in an ecosystem

In ecology, a disturbance is a temporary change in environmental conditions that causes a pronounced change in an ecosystem. Disturbances often act quickly and with great effect, to alter the physical structure or arrangement of biotic and abiotic elements. A disturbance can also occur over a long period of time and can impact the biodiversity within an ecosystem.

<i>Populus tremuloides</i> Species of deciduous tree native to cooler areas of North America

Populus tremuloides is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen. It is commonly called quaking aspen, trembling aspen, American aspen, mountain or golden aspen, trembling poplar, white poplar, and popple, as well as others. The trees have tall trunks, up to 25 metres tall, with smooth pale bark, scarred with black. The glossy green leaves, dull beneath, become golden to yellow, rarely red, in autumn. The species often propagates through its roots to form large clonal groves originating from a shared root system. These roots are not rhizomes, as new growth develops from adventitious buds on the parent root system.

Variable retention is a relatively new silvicultural system that retains forest structural elements for at least one rotation in order to preserve environmental values associated with structurally complex forests.

<span class="mw-page-title-main">Climax species</span> Plant species that can germinate and grow with limited resources

Climax species, also called late seral, late-successional, K-selected or equilibrium species, are plant species that can germinate and grow with limited resources; e.g., they need heat exposure or low water availability. They are the species within forest succession that are more adapted to stable and predictable environments, and will remain essentially unchanged in terms of species composition for as long as a site remains undisturbed.

<span class="mw-page-title-main">European spruce bark beetle</span> Species of beetle

The European spruce bark beetle, is a species of beetle in the weevil subfamily Scolytinae, the bark beetles, and is found from Europe to Asia Minor and some parts of Africa.

<span class="mw-page-title-main">Mediterranean forests, woodlands, and scrub</span> Habitat defined by the World Wide Fund for Nature

Mediterranean forests, woodlands, and scrub is a biome defined by the World Wide Fund for Nature. The biome is generally characterized by dry summers and rainy winters, although in some areas rainfall may be uniform. Summers are typically hot in low-lying inland locations but can be cool near colder seas. Winters are typically mild to cool in low-lying locations but can be cold in inland and higher locations. All these ecoregions are highly distinctive, collectively harboring 10% of the Earth's plant species.

<span class="mw-page-title-main">Forest restoration</span>

Forest restoration is defined as “actions to re-instate ecological processes, which accelerate recovery of forest structure, ecological functioning and biodiversity levels towards those typical of climax forest” i.e. the end-stage of natural forest succession. Climax forests are relatively stable ecosystems that have developed the maximum biomass, structural complexity and species diversity that are possible within the limits imposed by climate and soil and without continued disturbance from humans. Climax forest is therefore the target ecosystem, which defines the ultimate aim of forest restoration. Since climate is a major factor that determines climax forest composition, global climate change may result in changing restoration aims. Additionally, the potential impacts of climate change on restoration goals must be taken into account, as changes in temperature and precipitation patterns may alter the composition and distribution of climax forests.

<span class="mw-page-title-main">Deforestation in British Columbia</span>

Deforestation in British Columbia has resulted in a net loss of 1.06 million hectares of tree cover between the years 2000 and 2020. More traditional losses have been exacerbated by increased threats from climate change driven fires, increased human activity, and invasive species. The introduction of sustainable forestry efforts such as the Zero Net Deforestation Act seeks to reduce the rate of forest cover loss. In British Columbia, forests cover over 55 million hectares, which is 57.9% of British Columbia's 95 million hectares of land. The forests are mainly composed of coniferous trees, such as pines, spruces and firs.

<span class="mw-page-title-main">Deforestation and climate change</span> Relationship between deforestation and global warming

Deforestation is a primary contributor to climate change, and climate change affects forests. Land use changes, especially in the form of deforestation, are the second largest anthropogenic source of atmospheric carbon dioxide emissions, after fossil fuel combustion. Greenhouse gases are emitted during combustion of forest biomass and decomposition of remaining plant material and soil carbon. Global models and national greenhouse gas inventories give similar results for deforestation emissions. As of 2019, deforestation is responsible for about 11% of global greenhouse gas emissions. Carbon emissions from tropical deforestation are accelerating. Growing forests are a carbon sink with additional potential to mitigate the effects of climate change. Some of the effects of climate change, such as more wildfires, insect outbreaks, invasive species, and storms are factors that increase deforestation.

Thomas Thorstein Veblen is an American forest ecologist and physical geographer known for his work on the ecology of Nothofagus forests in the Southern Hemisphere and on the ecology of conifer forests in the southern Rocky Mountains of the U.S.A. He is an Arts and Sciences College Professor of Distinction at University of Colorado at Boulder, USA (2006).

<span class="mw-page-title-main">Complex early seral forest</span> Type of ecosystem present after a major disturbance

Complex early seral forests, or snag forests, are ecosystems that occupy potentially forested sites after a stand-replacement disturbance and before re-establishment of a closed forest canopy. They are generated by natural disturbances such as wildfire or insect outbreaks that reset ecological succession processes and follow a pathway that is influenced by biological legacies that were not removed during the initial disturbance. Complex early seral forests develop with rich biodiversity because the remaining biomass provides resources to many life forms and because of habitat heterogeneity provided by the disturbances that generated them. In this and other ways, complex early seral forests differ from simplified early successional forests created by logging. Complex early seral forest habitat is threatened from fire suppression, thinning, and post-fire or post-insect outbreak logging.

Proforestation is the practice of protecting existing natural forests to foster continuous growth, carbon accumulation, and structural complexity. It is recognized as an important forest based strategy for addressing the global crises in climate and biodiversity. Forest restoration can be a strategy for climate change mitigation. Proforestation complements other forest-based solutions like afforestation, reforestation and improved forest management.

References

  1. "SAFnet Dictionary | Definition For [salvage_cutting]". dictionaryofforestry.org. Archived from the original on 2015-11-17. Retrieved 2015-11-16.
  2. "Why Thinning Forests is Poor Wildfire Strategy". Western Watersheds Project. Retrieved 2023-10-24.
  3. 1 2 D., McIver, James; Lynn, Starr; Or.), Pacific Northwest Research Station (Portland. "Environmental effects of postfire logging: literature review and annotated bibliography". ir.library.oregonstate.edu. Retrieved 2015-11-16.{{cite web}}: CS1 maint: multiple names: authors list (link)
  4. 1 2 Donato, D. C.; Fontaine, J. B.; Campbell, J. L.; Robinson, W. D.; Kauffman, J. B.; Law, B. E. (2006-01-20). "Post-Wildfire Logging Hinders Regeneration and Increases Fire Risk". Science. 311 (5759): 352. CiteSeerX   10.1.1.600.1213 . doi:10.1126/science.1122855. ISSN   0036-8075. PMID   16400111. S2CID   28709932.
  5. Lindenmayer, DB (27 February 2004). "Salvage Harvesting Policies After Natural Disturbances" (PDF). Science. 303 (5662): 1303. doi:10.1126/science.1093438. PMID   14988539. S2CID   33741238 . Retrieved 16 November 2015.
  6. 1 2 "16 U.S. Code Chapter 84. Healthy Forests Restoration Act" via law.cornell.edu.
  7. Public Law 104-19 Emergency Supplemental Appropriations for Additional Disaster Assistance, for Anti-terrorism Initiatives, for Assistance in the Recovery from the Tragedy that Occurred at Oklahoma City, and the Rescissions Act 1995 http://www.gpo.gov/fdsys/pkg/PLAW-104publ19/html/PLAW-104publ19.htm
  8. Bewley, Dan; Alila, Younes; Varhola, Andrés (2010-07-15). "Variability of snow water equivalent and snow energetics across a large catchment subject to Mountain Pine Beetle infestation and rapid salvage logging". Journal of Hydrology. 388 (3–4): 464–479. Bibcode:2010JHyd..388..464B. doi:10.1016/j.jhydrol.2010.05.031.
  9. 1 2 3 Lindenmayer, Burton, and Franklin (2012). Salvage Logging and its Ecological Consequences. Island Press. ISBN   978-1597264037.{{cite book}}: CS1 maint: multiple names: authors list (link)
  10. Noss, Reed F.; Lindenmayer, David B. (2006-08-01). "Special Section: The Ecological Effects of Salvage Logging after Natural Disturbance". Conservation Biology. 20 (4): 946–948. doi:10.1111/j.1523-1739.2006.00498.x. ISSN   1523-1739. S2CID   82168344.
  11. Swanson, Mark E; Franklin, Jerry F; Beschta, Robert L; Crisafulli, Charles M; DellaSala, Dominick A; Hutto, Richard L; Lindenmayer, David B; Swanson, Frederick J (2010-03-02). "The forgotten stage of forest succession: early-successional ecosystems on forest sites". Frontiers in Ecology and the Environment. 9 (2): 117–125. doi:10.1890/090157. hdl: 1885/60278 . ISSN   1540-9295. S2CID   17562042.
  12. Hanson, Chad T.; Bond, Monica L.; Lee, Derek E. (2018-01-18). "Effects of post-fire logging on California spotted owl occupancy". Nature Conservation. 24: 93–105. doi: 10.3897/natureconservation.24.20538 . ISSN   1314-3301.
  13. "Northwest Forest Plan".
  14. Russell, Robin E.; Saab, Victoria A.; Dudley, Jonathan G.; Rotella, Jay J. (2006-08-15). "Snag longevity in relation to wildfire and postfire salvage logging". Forest Ecology and Management. 232 (1–3): 179–187. doi:10.1016/j.foreco.2006.05.068.
  15. Saab, Victoria A.; Dudley, Jonathan G. (1998-01-01). Responses of cavity-nesting birds to stand-replacement fire and salvage logging in ponderosa pine/Douglas-fir forests of southwestern Idaho. doi:10.2737/RMRS-RP-11.
  16. Saab, Victoria A.; Russell, Robin E.; Dudley, Jonathan G. (2007-02-01). "Nest densities of cavity-nesting birds in relation to postfire salvage logging and time since wildfire". The Condor. 109 (1): 97–108. doi: 10.1650/0010-5422(2007)109[97:NDOCBI]2.0.CO;2 . ISSN   0010-5422. S2CID   85703684.
  17. Koivula, Matti; Spence, John R. (2006-11-15). "Effects of post-fire salvage logging on boreal mixed-wood ground beetle assemblages (Coleoptera, Carabidae)". Forest Ecology and Management. 236 (1): 102–112. doi:10.1016/j.foreco.2006.09.004.
  18. Phillips, Iain D.; Cobb, Tyler P.; Spence, John R.; Brigham, R. Mark (2006). "Salvage Logging, Edge Effects, and Carabid Beetles: Connections to Conservation and Sustainable Forest Management". Environmental Entomology. 35 (4): 950–957. doi: 10.1603/0046-225x-35.4.950 .
  19. Newton, M.; Fitzgerald, S.; Rose, R. R.; Adams, P. W.; Tesch, S. D.; Sessions, J.; Atzet, T.; Powers, R. F.; Skinner, C. (2006-08-04). "Comment on "Post-Wildfire Logging Hinders Regeneration and Increases Fire Risk"". Science. 313 (5787): 615. doi:10.1126/science.1126478. ISSN   0036-8075. PMID   16888122. S2CID   52850371.
  20. McIver, J. D.; Ottmar, R. (2007-01-30). "Fuel mass and stand structure after post-fire logging of a severely burned ponderosa pine forest in northeastern Oregon". Forest Ecology and Management. 238 (1–3): 268–279. doi:10.1016/j.foreco.2006.10.021.
  21. Silins, Uldis; Stone, Micheal; Emelko, Monica B.; Bladon, Kevin D. (2009-12-15). "Sediment production following severe wildfire and post-fire salvage logging in the Rocky Mountain headwaters of the Oldman River Basin, Alberta". CATENA. Sediment Sources and Sediment Delivery under Environmental Change. 79 (3): 189–197. Bibcode:2009Caten..79..189S. doi:10.1016/j.catena.2009.04.001.
  22. "Eugene Register-Guard - Google News Archive Search". news.google.com. Retrieved 2015-11-16.
  23. COLE, RICHARD (1995-09-24). "Arson for Profit Is Catching Fire in Nation's Forests : Crime: Motives include clearing timber, selling supplies to firefighters, even firefighting itself. The Southeast has been hit particularly hard--90% of the forest fires on federal land there are deliberately set". Los Angeles Times. ISSN   0458-3035 . Retrieved 2015-11-16.