Forest Inventory Based Estimation Of Carbon Stocks And Flux In California Forests In 1990

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Forest Inventory-based Estimation of Carbon Stocks and Flux in California Forests in 1990

Author : Jeremy Steven Fried
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Forest Inventory-based Estimation of Carbon Stocks and Flux in California Forests in 1990 by : Jeremy Steven Fried

Download or read book Forest Inventory-based Estimation of Carbon Stocks and Flux in California Forests in 1990 written by Jeremy Steven Fried and published by . This book was released on 2008 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimates of forest carbon stores and flux for California circa 1990 were modeled from forest inventory data in support of California's legislatively mandated greenhouse gas inventory. Reliable estimates of live-tree carbon stores and flux on timberlands outside of national forest could be calculated from periodic inventory data collected in the 1980s and 1990s; however, estimation of circa 1990 flux on national forests and forests other than timberland was problematic owing to a combination of changing inventory protocols and definitions and the lack of remeasurement data on those land categories. We estimate annual carbon flux on the 7.97 million acres of timberlands outside of national forests (which account for 24 percent of California's forest area and 28 percent of its live tree aboveground biomass) at 2.9 terragrams per year.

Forest Inventory-based Estimation of Carbon Stocks and Flux in California Forests in 1990

Author : J. S. Fried
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (254 download)

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Book Synopsis Forest Inventory-based Estimation of Carbon Stocks and Flux in California Forests in 1990 by : J. S. Fried

Download or read book Forest Inventory-based Estimation of Carbon Stocks and Flux in California Forests in 1990 written by J. S. Fried and published by . This book was released on 2008 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Carbon in U.S. Forests and Wood Products, 1987-1997: State-by-State Estimates

Author :
Publisher : DIANE Publishing
ISBN 13 : 1428960430
Total Pages : 47 pages
Book Rating : 4.4/5 (289 download)

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Book Synopsis Carbon in U.S. Forests and Wood Products, 1987-1997: State-by-State Estimates by :

Download or read book Carbon in U.S. Forests and Wood Products, 1987-1997: State-by-State Estimates written by and published by DIANE Publishing. This book was released on 2003 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

U.S. Forest Carbon Calculation Tool

Author : James E. Smith
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis U.S. Forest Carbon Calculation Tool by : James E. Smith

Download or read book U.S. Forest Carbon Calculation Tool written by James E. Smith and published by . This book was released on 2007 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Carbon Calculation Tool 2007, CCT2007.exe, is a computer application that reads publicly available forest inventory data collected by the USDA Forest Service's Forest Inventory and Analysis Program (FIA) and generates state-level annualized estimates of carbon stocks on forest land based on FORCARB2 estimators. Estimates can be recalculated as new inventory data become available. The input set of FIA data files available on the Internet (as well as some older inventory files used to fill in gaps) are summarized by the application, converted to carbon stocks, and saved as part of a state or substate level "survey summary" file. This is used to produce state-level and national tables with annualized carbon stocks and flux (or net stock change) beginning with the year 1990. This user's guide includes instructions for use, example data sets, and a discussion of methods and assumptions.

Methods for Calculating Forest Ecosystem and Harvested Carbon with Standard Estimates for Forest Types of the United States

Author :
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Methods for Calculating Forest Ecosystem and Harvested Carbon with Standard Estimates for Forest Types of the United States by :

Download or read book Methods for Calculating Forest Ecosystem and Harvested Carbon with Standard Estimates for Forest Types of the United States written by and published by . This book was released on 2006 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents techniques for calculating average net annual additions to carbon in forests and in forest products. Forest ecosystem carbon yield tables, representing stand-level merchantable volume and carbon pools as a function of stand age, were developed for 51 forest types within 10 regions of the United States. Separate tables were developed for afforestation and reforestation. Because carbon continues to be sequestered in harvested wood, approaches to calculate carbon sequestered in harvested forest products are included. Although these calculations are simple and inexpensive to use, the uncertainty of results obtained by using representative average values may be high relative to other techniques that use site- or project-specific data. The estimates and methods in this report are consistent with guidelines being updated for the U.S. Voluntary Reporting of Greenhouse Gases Program and with guidelines developed by the Intergovernmental Panel on Climate Change. The CD-ROM included with this publication contains a complete set of tables in spreadsheet format.

Carbon Storage and Accumulation in United States Forest Ecosystems

Author : Richard A. Birdsey
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Carbon Storage and Accumulation in United States Forest Ecosystems by : Richard A. Birdsey

Download or read book Carbon Storage and Accumulation in United States Forest Ecosystems written by Richard A. Birdsey and published by . This book was released on 1992 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Climate, Management, and Forest Type Influences on Carbon Dynamics of West-Coast U.S. Forests

Author : Tara M. Hudiburg
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.:/5 (183 download)

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Book Synopsis Climate, Management, and Forest Type Influences on Carbon Dynamics of West-Coast U.S. Forests by : Tara M. Hudiburg

Download or read book Climate, Management, and Forest Type Influences on Carbon Dynamics of West-Coast U.S. Forests written by Tara M. Hudiburg and published by . This book was released on 2008 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Net uptake of carbon from the atmosphere (net ecosystem production, NEP) is dependent on climate, disturbance history, management practices, forest age, and forest type. To improve understanding of the influence of these factors on forest carbon flux in the western U.S., a combination of federal inventory data and supplemental ground measurements was used to estimate several important components of NEP in forests in Oregon and Northern California during the 1990's. The specific components studied were live and dead biomass stores, net primary productivity (NPP), and mortality. In the semi-arid Northern Basin and mesic Coast Range, mean total biomass was 4 and 24 Kg C m−2, and mean NPP was 0.28 and 0.78 Kg C m−2 y−1, respectively. These values were obtained using species- and ecoregionspecific allometric equations and tended to be higher than those obtained from more generalized approaches. There is strong evidence that stand development patterns of biomass accumulation, net primary production, and mortality differ due to climate (ecoregion), management practices (ownership), and forest type. Among those three factors and across the whole region, maximum NPP and dead biomass stores were most influenced by climate, while maximum live biomass stores and mortality were mostly influenced by forest type. Live and dead biomass, NPP, and mortality were most influenced by forest type. Decrease in NPP with age was not general across ecoregions, with no marked decline in old stands (>200 years) in some ecoregions, and in others, the age at which NPP declined was very high (458 years in East Cascades, 325 in Klamath Mountains, 291 in Sierra Nevada). There is high potential for increasing total carbon storage by increasing rotation age and reducing harvest rates in this region. Only 1% of forest plots on private lands were >200 years old, whereas 41% of the plots were greater than 200 years old on public lands. Total carbon stocks could increase from 3.2 Pg C to 7.3 Pg C and NPP could increase from 0.109 Pg C y−1 to .168 Pg C y−1 (a 35% increase) if forests were managed for maximum carbon storage by increasing rotation age.

California's Forest Resources, 2001-2005

Author :
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis California's Forest Resources, 2001-2005 by :

Download or read book California's Forest Resources, 2001-2005 written by and published by . This book was released on 2008 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report highlights key findings from the most recent (2001-2005) data collected by the Forest Inventory and Analysis Program across all forest land in California. We summarize and interpret basic resource information such as forest area, ownership, volume, biomass, and carbon stocks; structure and function topics such as biodiversity, forest age, dead wood, and hardwood forests; disturbance topics such as insects and diseases, fire, invasive plants, and air pollution; and information about the forest products industry in California, including data on tree growth and mortality, removals for timber products, and nontimber forest products. The appendixes describe inventory methods in detail and provide summary tables of data, with statistical error, about the suite of forest characteristics inventoried.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service's Sierra Nevada Bio-Regional Assessment Area of the Pacific Southwest Region, 1909-2012

Download Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service's Sierra Nevada Bio-Regional Assessment Area of the Pacific Southwest Region, 1909-2012 PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service's Sierra Nevada Bio-Regional Assessment Area of the Pacific Southwest Region, 1909-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service's Sierra Nevada Bio-Regional Assessment Area of the Pacific Southwest Region, 1909-2012 written by and published by . This book was released on 2014 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1909 to 2012 for the USFS Sierra Nevada Bio-Regional Assessment Area (Assessment Area) of the Pacific Southwest Region. For the Assessment Area as a whole, carbon stocks in the HWP pool were increasing at just above 0.5 million megagrams of carbon (MgC) per year beginning in the late 1940's until the early 1990's, with peak cumulative storage to date of 32 million MgC occurring in 1999. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels during the 1960's through 1980's. In the years between the late 1960s and 1990 timber harvest were at high but volatile levels, with high harvests of over 2.5 million ccf (1.8 million MgC) occurring six times during this period, harvest levels from National Forests have since declined to less than 0.7 million ccf (0.5 million MgC) per year, resulting in less carbon entering the HWP pool. Since 2000, emissions from HWP at solid waste disposal sites exceeded additions from harvesting, resulting in a decline in the total amount of carbon stored in the HWP pool. The Assessment Area's HWP pool is now in a period of negative net annual stock change because the decay of products harvested between 1909 and 2012 exceeds additions of carbon to the HWP pool through harvest. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Assessment Area, this accounting method can be applied more broadly at smaller land management units, such as National Forests.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Pacific Southwest Region, 1909-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Pacific Southwest Region, 1909-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Pacific Southwest Region, 1909-2012 written by and published by . This book was released on 2014 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1909 to 2012 for the USFS Pacific Southwest Region. For the Pacific Southwest Region as a whole, carbon stocks in the HWP pool were increasing at just below 1 million megagrams of carbon (MgC) per year beginning in the late 1940's until the early 1990's, with peak cumulative storage of 51 million MgC occurring in 1994. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels during the 1960's through 1980's. In the years between the late 1960s and 1990 timber harvest were at high but volatile levels, with high harvests of over 4.3 million ccf (3.2 million MgC) occurring five times during this period, harvest levels from National Forests have since declined to less than 1.1 million ccf (0.8 million MgC) per year, resulting in less carbon entering the HWP pool. Since 1995, emissions from HWP at solid waste disposal sites exceeded additions from harvesting, resulting in a decline in the total amount of carbon stored in the HWP pool. The Pacific Southwest Region's HWP pool is now in a period of negative net annual stock change because the decay of products harvested between 1909 and 2012 exceeds additions of carbon to the HWP pool through harvest. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), Regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Pacific Southwest Region as a whole, this accounting method can be applied more broadly at smaller land management units, such as National Forests.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Pacific Northwest Region, 1909-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Pacific Northwest Region, 1909-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Pacific Northwest Region, 1909-2012 written by and published by . This book was released on 2014 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1909 to 2012 from harvests on the national forests in the USFS Pacific Northwest Region. For the Pacific Northwest Region as a whole, carbon stocks in the HWP pool were increasing at over 1 million megagrams of carbon (MgC) per year between the late 1940's and the early 1990's, with peak cumulative storage between 143 million and 144 million MgC spanning 1992-1995. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels during the 1960's through the 1980's. In the years between the late 1960s and 1990 timber harvest were at high but volatile levels, with harvests exceeding 10.6 million ccf (8 million MgC) twice during this period. Harvest levels from national forests have since declined to less than 1.3 million ccf (1 million MgC) per year, resulting in less carbon entering the HWP pool. Since 1995, emissions from HWP at solid waste disposal sites have exceeded additions from harvesting, resulting in a decline in the total amount of carbon stored in the HWP pool. The Pacific Northwest Region's HWP pool is now in a period of negative net annual stock change because the decay of products harvested between 1909 and 2012 exceeds additions of carbon to the HWP pool through harvest. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Pacific Northwest Region as a whole, this accounting method can be applied more broadly at smaller land management units, such as National Forests.

Ecosystems of California

Author : Harold Mooney
Publisher : Univ of California Press
ISBN 13 : 0520962176
Total Pages : 1009 pages
Book Rating : 4.5/5 (29 download)

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Book Synopsis Ecosystems of California by : Harold Mooney

Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1009 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for California’s remarkable ecological abundance provides an integrated assessment of each major ecosystem type—its distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of California’s ecological patterns and the history of the state’s various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the state’s ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of California’s environment and curious naturalists.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Rocky Mountain Region, 1906-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Rocky Mountain Region, 1906-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Rocky Mountain Region, 1906-2012 written by and published by . This book was released on 2014 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1906 to 2012 for the USFS Rocky Mountain Region. For the Rocky Mountain Region as a whole, carbon stocks in the HWP pool were increasing at approximately 180,000 megagrams of carbon (MgC) per year in the early 1950s through 1995 when carbon stocks plateaued until 2005 followed by the peak cumulative storage to date of 12 million MgC occurring in 2013. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels in the early1950s through the 1990s. In the years between the mid-1960s and 1990 timber harvests were at high, volatile levels, with high harvests of over 800,000 ccf (600,000 MgC) occurring six times during this period. Harvest levels from National Forests of the Rocky Mountain Region have since declined to less than 470,000 ccf (350,000 MgC) per year, resulting in less carbon entering the HWP pool. With the exceptions of 1998, 2003 and 2004, when emissions from HWP at solid waste disposal sites exceeded additions from harvesting, the Rocky Mountain Region HWP pool has remained in a period of positive net annual stock change because additions of carbon to the HWP pool through harvest exceeds the decay of products harvested between 1906 and 2012. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Rocky Mountain Region as a whole, this accounting method can be applied at smaller land management units, such as National Forests.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Eastern Region, 1911-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Eastern Region, 1911-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Eastern Region, 1911-2012 written by and published by . This book was released on 2014 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1911 to 2012 for the USFS Eastern Region. For the Eastern Region as a whole, carbon stocks in the HWP pool were increasing steadily from 100,000 megagrams of carbon (MgC) per year in the early 1950s up to 416,000 MgC in 1987, with peak cumulative storage to date of slightly less than 12.7 million MgC occurring in 2013. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels in the 1980s and 1990s. Harvest levels have declined since the 1990s and have been erratic since the year 2000, yet carbon entering the HWP pool continues to increase. The Eastern Region HWP pool has always been in a state of positive net annual stock change because additions of carbon to the HWP pool through harvest exceeds the decay of products harvested between 1911 and 2012. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Eastern Region as a whole, this accounting method can be applied more broadly at smaller land management units, such as National Forests.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Alaska Region, 1910-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Alaska Region, 1910-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Alaska Region, 1910-2012 written by and published by . This book was released on 2014 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1910 to 2012 for the USFS Alaska Region. For the Alaska Region as a whole, carbon stocks in the HWP pool were increasing at nearly one-half million megagrams of carbon (MgC) per year in the late 1960s and early 1970s, with peak cumulative storage of 13.5 million MgC occurring in 1996. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels in the mid-1950s through the 1990s. Harvest levels declined after 1990, resulting in less carbon entering the HWP pool. Since 2005, emissions from HWP at solid waste disposal sites have exceeded additions from harvesting, resulting in a decline in the total amount of carbon stored in the HWP pool. The Alaska Region HWP pool is now in a period of negative net annual stock change because the decay of products harvested between 1910 and 2012 exceeds additions of carbon to the HWP pool through harvest. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Alaska Region as a whole, this accounting method can be applied more broadly at smaller land management units, such as National Forests.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Intermountain Region, 1911-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Intermountain Region, 1911-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Intermountain Region, 1911-2012 written by and published by . This book was released on 2014 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1911 to 2012 for the USFS Intermountain Region. For the Intermountain Region as a whole, carbon stocks in the HWP pool were increasing at approximately 200,000 megagrams of carbon (MgC) per year in the late 1950s through the early 1990s, with peak cumulative storage of 9.8 million MgC occurring in 1999. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels in the early1950s through the 1990s. In the years between the mid-1960s and 1990 timber harvests were at high, volatile levels, with high harvests of over 850,000 ccf (620,000 MgC) occurring five times during this period. Harvest levels from National Forests of the Intermountain Region have since declined to less than 200,000 ccf (160,000 MgC) per year, resulting in less carbon entering the HWP pool. Since 2001, emissions from HWP at solid waste disposal sites exceeded additions from harvesting, resulting in a decline in the total amount of carbon stored in the HWP pool. The Intermountain Region's HWP pool is now in a period of negative net annual stock change because the decay of products harvested between 1911 and 2012 exceeds additions of carbon to the HWP pool through harvest. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Intermountain Region as a whole, this accounting method can be applied more broadly at smaller land management units, such as National Forests.

Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Southern Region, 1911-2012

Author :
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Southern Region, 1911-2012 by :

Download or read book Estimates of Carbon Stored in Harvested Wood Products from United States Forest Service Southern Region, 1911-2012 written by and published by . This book was released on 2014 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global forests capture and store significant amounts of carbon through photosynthesis. When carbon is removed from forests through harvest, a portion of the harvested carbon is stored in wood products, often for many decades. The United States Forest Service (USFS) and other agencies are interested in accurately accounting for carbon flux associated with harvested wood products (HWP) to meet greenhouse gas monitoring commitments and climate change adaptation and mitigation objectives. National-level forest carbon accounting has been in place for over a decade, but there is an increasing need for accounting for smaller scale administrative units, including USFS National Forest System regions and individual National Forests. This paper uses the Intergovernmental Panel on Climate Change (IPCC) production accounting approach to estimate HWP carbon storage from 1911 to 2012 for the USFS Southern Region. For the Southern Region as a whole, carbon stocks in the HWP pool were increasing at approximately 400,000 megagrams of carbon (MgC) per year in the late 1950s through the early 1980s, with peak cumulative storage to date of 24.9 million MgC occurring in 2012. Net positive flux into the HWP pool over this period is primarily attributable to high harvest levels in the mid-1950s through the mid-1990s. Harvest levels have been erratic since the late 1990s, yet carbon entering the HWP pool continues to increase. Following 5 years beginning in 2002 when emissions from HWP at solid waste disposal sites exceeded additions from harvesting, the Southern Region HWP pool is now in a period of positive net annual stock change because additions of carbon to the HWP pool through harvest exceeds the decay of products harvested between 1911 and 2012. Together with estimates of ecosystem carbon, which are also being developed through the Forest Management Carbon Framework (ForCaMF), regional level estimates of HWP carbon flux can be used to inform management decisions and guide climate change adaptation and mitigation efforts by the agency. Though our emphasis is on the Southern Region as a whole, this accounting method can be applied more broadly at smaller land management units, such as National Forests.