Global Forest Watch Report
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Global Forest Watch Report Deforestation, Oregon Style1 By John Talberth2 and Erik Fernandez3 September 2015 Key points • As the catastrophic impacts of climate change accelerate, reversing the loss and degradation of forest ecosystems has become an urgent global priority. • While most decision makers focus on the loss and degradation of forests in developing countries, deforestation in the US is alive and well. What is happening on state and privately managed forestlands in Oregon exemplifies the situation in many other states. • There are four key drivers of deforestation on these lands in Oregon: (1) overcutting (cutting at a rate in excess of forest regrowth); (2) conversion of natural forests to industrial tree plantations; (3) loss of forestlands to roads and other infrastructure, and (4) loss of long-term site productivity. • As compared with the year 2000, Oregon has nearly 522,000 acres less forest cover on its state and privately managed forestlands in western Oregon today. This has primarily been the result of rapid clearcutting at rates that far exceed regrowth. Forest loss to clearcutting has exceeded forest regrowth by 45% between 2000 and 2013. • Over 4 million acres of Oregon’s natural forests have been converted to industrial tree plantations. These plantations are as far from real forests as are industrial cornfields from native grasslands. • The logging road network on state and private forestlands in Oregon has taken another 110,000 to 150,000 acres out of production. • Landslides, erosion, and short rotations are depleting soils and soil productivity. Loss and degradation of soils through industrial forest practices is a slow, but irreversible process. • Reforms of Oregon’s Forest Practices Act – for example, to limit the rate of clearcutting – are urgently needed to reverse deforestation and its consequences and contribute to climate stability. 1 Generous support for this work was provided by the World Resources Institute, Global Forest Watch Program. 2 President and Senior Economist, Center for Sustainable Economy, [email protected] (503) 657-7336. 3 Wilderness Coordinator, Oregon Wild, [email protected], (541) 382 2616. 2 Deforestation in the US and Oregon is alive and well The international community of nations is firmly committed to halting and reversing loss and degradation of forestlands to achieve sustainable development goals. As succinctly stated by the International Centre for Trade and Sustainable Development “[i]f we manage forests well they will give us goods and services that we cannot live without. If forests disappear we lose any prospect of sustainable development.”4 The imperative of halting deforestation and forest degradation has been articulated by dozens of international agreements dating from the 1992 Earth Summit. In 2007, these processes culminated in a landmark agreement on international forest policy and cooperation. A set of global objectives were part of the agreement, the first of which calls on all nations to “[r]everse the loss of forest cover worldwide through sustainable forest management, including protection, restoration, afforestation and reforestation, and increase efforts to prevent forest degradation.”5 Climate change has given new urgency to the task. Even if major new technological solutions like carbon capture and storage (CCS) technology are deployed at a large scale, we still need to halt deforestation to stay below the critical +2°C threshold most scientists believe is the maximum the Earth can tolerate before the worst effects of warming manifest. In a future in which CCS technology becomes available and cost-effective on a large scale, limiting global temperature rise to +2°C requires reducing deforestation to near zero by 2030. Not many models project that it’s possible to limit warming to +2°C without CCS technology, but those that do require not only stopping deforestation altogether, but reversing it to create a massive terrestrial carbon sink of regrowing forest vegetation by 2030.6 Deforestation and forest degradation is not just a developing world issue. It is alive and well in the US. Recently, the Environmental Protection Agency (EPA) quantified the forests lost to urban development over the past three decades. The results were alarming. Over the 25-year period been 1982 and 2007 the US lost 17,083,500 acres of forestland to development.7 This is a bit bigger than the state of West Virginia. But paving over once productive forests for suburban sprawl is just one way the US is losing forests. There are many other drivers including clearcutting at rates that exceed forest regrowth, the conversion of real forests into tree plantations, logging roads, and loss of long-term productivity. Industrial forest practices – such as short rotation clearcutting, chemical spraying, highly mechanized processes, and management to 4 Mayers, James. 2014. “Forests in the sustainable development goals.” Biores (8)3. International Centre for Trade and Sustainable Develoment. Available online at: http://www.ictsd.org/bridges- news/biores/news/forests-in-the-sustainable-development-goals. 5 United Nations Forum on Forests. 2007. Report of the seventh session (24February 2206 and 16 to 27 April 2007). Non-legally binding instrument on all types of forests. Economic and Social Council, Official records 2007. Supplement No. 22. 6 Busch, Jonah. 2014. Halting and Reversing Deforestation Critical to +2° Climate Target. Center for Global Development blog series. Available online at: http://www.cgdev.org/blog/halting-and-reversing- deforestation-critical-climate-target. 7 Kramer, Melissa. 2013. Our Built and Natural Environments: A Technical Review of the Interactions Among Land Use, Transportation, and Environmental Quality. Second Edition. Washington, DC: US Environmental Protection Agency, Office of Sustainable Communities. 3 maximize short term returns to investors – chip away at forest cover both in the short and long term through all these mechanisms. Management of state and private forestlands in Oregon exemplifies the problem unfolding in many other states and parts of the world. Drivers and extent of deforestation in Oregon Center for Sustainable Economy (CSE) and Oregon Wild teamed up to complete an analysis of deforestation trends in Oregon focusing on the first driver – rapid clearcutting – since the other three are well established in the literature already while this factor has been infrequently addressed and, so far, ignored altogether by policy-makers. The following section provides an analysis of rapid clearcutting and its effects on forest cover as well as a synopsis of some key research related to the other three deforestation drives in play. Rapid clearcutting is causing a net loss of forest cover Deforestation occurs when forest cover is lost at a rate that exceeds forest regrowth. Clearcutting is the process of eliminating forest cover altogether and then replanting it with seedlings engineered for attributes like faster growth, straighter trunks, and more disease resistance.8 When forests are replanted they take time – perhaps forever if the site is badly damaged – to regain the attributes of what was lost. But at minimum, and in accordance with widely accepted definitions, forests can be said to be reestablished once the forest canopy covers 30% of the ground9 as seen from the air with trees that are at least 5 meters in height.10 Satellite imagery is now readily available and at a high enough resolution and reliability that long term trends using this minimum forest cover definition can be examined in detail from space. The World Resources Institute (WRI), through its Global Forest Watch (GFW) Program, hosts a platform enabling users to download and analyze Landsat-based forest change data dating back to 2001.11 Each pixel in the dataset measures an area of thirty by thirty meters, so the resolution is quite good. CSE and Oregon Wild used these data to analyze the pattern of forest change on state and private forestlands in western Oregon from 2001 to 2013. After removing federal lands from the analysis as well as forest cover loss due to wildfire, we calculated the area of forest loss vs. forest gain on a subwatershed basis using fifth order HUC watershed classifications. We also calculated the percentage of each subwatershed affected by clear-cutting during that time period. The results appear in the map provided in Appendix 1 and the detailed data table provided in Appendix 2. Key results are as follows: 8 See, e.g. the description of trees engineered for Plum Creek Timberlands, LP, Oregon’s largest timberland owner: http://www.plumcreek.com/working-forests/forest-regeneration/seedlings/seedling- quality. 9 See, e.g. the discussion from Intergovernmental Panel on Climate Change (IPCC) on forest definitions: http://www.ipcc.ch/ipccreports/sres/land_use/index.php?idp=46. 10 Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “High-Resolution Global Maps of 21st-Century Forest Cover Change.” Science 342 (15 November): 850–53. Data available on-line from: http://earthenginepartners.appspot.com/science-2013-global-forest. 11 WRI’s Global Forest Watch portal can be accessed here: http://www.globalforestwatch.org 4 • As compared with the year 2000, western Oregon now has approximately 522,000 fewer acres of forest cover on state and private forestlands due to rapid rates of clearcutting. Between 2000 and 2013, 1.48 million acres were clearcut and thus stripped of forest cover while 1.02 million acres regained forest cover status as plantations matured. This translates into a net loss of 34,797 acres each year. The 522,000-acre figure for 2015 is an estimate based on extending this rate of loss from 2013 to the present. • A key measure of sustainable forest policy in Oregon is maintenance of forest cover. However, overcutting on state and private lands in western Oregon is undermining attainment of that goal.