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Articles 901 - 930 of 1574
Full-Text Articles in Physical Sciences and Mathematics
Fuel Reduction Treatment Longevity And Crown Response In Interior Ponderosa Pine Forests Of Northern California, Martin W. Ritchie, Carl N. Skinner, Jianwei Zhang
Fuel Reduction Treatment Longevity And Crown Response In Interior Ponderosa Pine Forests Of Northern California, Martin W. Ritchie, Carl N. Skinner, Jianwei Zhang
JFSP Research Project Reports
With increasing interest in fuels treatments to address the high risk of severe fires in the western United States, there is an attendant need to quantify the effectiveness of such treatments. In addition to the immediate effect of reducing levels of combustible material and the attendant impact on fire intensity, resource managers also need to quantify or forecast the longevity of such treatments. Treatments that produce significant, but short-lived reductions in risk of severe wildfire may not be meeting the goals and objectives of managers. This temporal component needs further study and is the subject of this proposal. There are …
Fuel Treatments In Mixed-Pine Forests In The Great Lakes Region: A Comprehensive Guide To Planning And Implementation, Eric Toman, Stanley Gehrt, Charles Goebel, David M. Hix, Roger Williams, Robyn Wilson, Sarah Mccaffrey
Fuel Treatments In Mixed-Pine Forests In The Great Lakes Region: A Comprehensive Guide To Planning And Implementation, Eric Toman, Stanley Gehrt, Charles Goebel, David M. Hix, Roger Williams, Robyn Wilson, Sarah Mccaffrey
JFSP Research Project Reports
Fuel management decisions are made within a larger context of resource management characterized by multiple objectives including ecosystem restoration, wildlife management, commodity production (from timber to less traditional forest products), and provision of recreation opportunities and amenity values. Implementation of fuel treatments is strongly influenced by their perceived influence on and compatibility with overarching management objectives. In some cases these objectives may be complementary while in others they may involve difficult tradeoffs. Such tradeoffs are only further complicated by institutional mandates, limited availability of information, and complex ownership patterns. Like natural resource managers across the U.S., those in the Great …
Adaptive Responses To Flooding Incidents In Ilorin, Kwara State, Nigeria, Habiba I. Jimoh, Kayode A. Iroye
Adaptive Responses To Flooding Incidents In Ilorin, Kwara State, Nigeria, Habiba I. Jimoh, Kayode A. Iroye
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Incidents of floods which are mainly caused by changes in landuse is fast becoming a city life experience in Ilorin as in most urban centres in Nigeria causing untold hardships and sometimes loss of lives. This extreme hydro-meteorological event is also being exacerbated by climate change which thus calls for adaptive response by residents towards reducing its risks, hence this study. Data used were generated from direct field measurements and questionnaire administration. Descriptive statistics and cross tabulations were used in analyzing the data. Results obtained indicate that most respondents use a wide range of non-structural adaptive response to flood. The …
An Assessment Of Socio-Economic Impact Of Waste Scavenging As A Means Of Poverty Alleviation In Gwagwalada, Abuja., John Yakubu Magaji, Samuel Panse Dakyes
An Assessment Of Socio-Economic Impact Of Waste Scavenging As A Means Of Poverty Alleviation In Gwagwalada, Abuja., John Yakubu Magaji, Samuel Panse Dakyes
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Waste scavengers are usually perceived as being among the poor, and scavenging is considered a marginal activity. They tend to have low incomes, but can obtained decent earning when they are not exploited by middlemen. This study was conducted in Gwagwalada town with the aim of assessing the socio-economic impact of scavenging on the people. A structured questionnaire was constructed to capture the demographic characteristics of the scavengers, their experiences, types of items scavenged, the economic gains and the challenges being faced. The target pollution is waste scavengers and a random sampling technique was adopted in selecting the respondents for …
Occam's Razor Vol. 1 - Full (2011)
A Guide To Fuels Management In Riparian Areas Of The Interior West, Final Report, Kathleen A. Dwire, Kristen E. Meyer, Sandra E. Ryan, Gregg Riegel, Timothy Burton
A Guide To Fuels Management In Riparian Areas Of The Interior West, Final Report, Kathleen A. Dwire, Kristen E. Meyer, Sandra E. Ryan, Gregg Riegel, Timothy Burton
Joint Fire Science Program Synthesis Reports
Fuel treatments in riparian areas pose distinct challenges. Riparian areas are protected by administrative regulations, many of which are largely custodial and restrict active management. However, riparian areas have also been affected by fire suppression, land use, and disturbance and manipulative treatments of fuels may be needed to maintain riparian biodiversity and restore valued functions. This project is a synthesis of the current knowledge regarding fuels treatments in riparian areas of the interior western USA. It summarizes the most recent scientific literature, but also incorporates the practical knowledge gained by resource managers who have been utilizing different techniques to reduce …
A Tale Of Two Carbon Sinks: Can Forest Carbon Management Serve As A Framework To Implement Ocean Iron Fertilization As A Climate Change Treaty Compliance Mechanism?, Randall S. Abate
Journal Publications
Any post-Kyoto climate change treaty regime must seek to fully engage the use of carbon sinks to complement emissions reduction measures in order to comply with the treaty's mandates. The Kyoto Protocol did not include avoided deforestation as a mechanism for earning emission reduction credits. However, reducing emissions from deforestation and degradation (REDD) quickly gained popularity as a viable climate change compliance strategy in the period immediately preceding the negotiations at the Fifteenth Conference of the Parties (COP 15) in Copenhagen in 2009. The Copenhagen Accord is replete with references to REDD as a focus for the international community's progression …
Interception In Open-Grown Douglas-Fir (Pseudotsuga Menziesii) Urban Canopy, Mitchell Bixby
Interception In Open-Grown Douglas-Fir (Pseudotsuga Menziesii) Urban Canopy, Mitchell Bixby
Dissertations and Theses
I hypothesized that Douglas-fir trees (Pseudotsuga menziesii) standing apart from other trees ('open-grown') will intercept more rainfall than Douglas-fir trees standing near other trees ('closed-canopy'). Open-grown trees differ structurally and are more common in urban settings, yet have been infrequently studied. Existing literature, based primarily on closed-canopy trees, suggests Douglas-fir trees in Pacific Northwest forests intercept approximately 25% of rainfall annually. Because open-grown trees have more vertical leaf area than individual trees in closed-canopy forests, I expected to find higher interception by open-grown trees.
I collected throughfall under four open-grown Douglas-firs using six static collectors ('buckets') per tree, …
Overcoming The Obstacles To Sustainability In Ghana, Ashley M. Scott
Overcoming The Obstacles To Sustainability In Ghana, Ashley M. Scott
CMC Senior Theses
For several decades following its independence from Great Britain, Ghana’s policies continued to promote over-extraction of natural resources to the detriment of its economy and rural communities. Agricultural and forestry policy has gradually evolved to foster more sustainable and equitable practices, as in building partnerships with the private sector to fund infrastructure improvements. Policy has recently recognized the dire need to adopt agricultural practices and means of forest resource extraction that are compatible with ecological stewardship. However, many shortcomings are still apparent. Large logging operations completely disregard forestry regulations with impunity, whereas rural sustenance extractors are severely punished in the …
Radiative Forcing Over The Conterminous United States Due To Contemporary Land Cover Use Change And Sensitivity To Snow And Interannual Albedo Variability, Christoper A. Barnes, David P. Roy
Radiative Forcing Over The Conterminous United States Due To Contemporary Land Cover Use Change And Sensitivity To Snow And Interannual Albedo Variability, Christoper A. Barnes, David P. Roy
GSCE Faculty Publications
Satellite‐derived land cover land use (LCLU), snow and albedo data, and incoming surface solar radiation reanalysis data were used to study the impact of LCLU change from 1973 to 2000 on surface albedo and radiative forcing for 58 ecoregions covering 69% of the conterminous United States. A net positive surface radiative forcing (i.e., warming) of 0.029 Wm−2 due to LCLU albedo change from 1973 to 2000 was estimated. The forcings for individual ecoregions were similar in magnitude to current global forcing estimates, with the most negative forcing (as low as −0.367 Wm−2) due to the transition to forest and the …
Applied Ecosystem Services In Working Forests: A Direct Market Valuation, Darin Stuart Hale
Applied Ecosystem Services In Working Forests: A Direct Market Valuation, Darin Stuart Hale
Masters Theses
Ecosystem services, or the benefits humans obtain from natural ecosystems, have long been recognized as critical to human health. Efforts have been taken by many to determine the non-market values of these services but few have offered a direct market valuation. Increasing awareness, scarcity, and regulation have fostered transactions, and markets are emerging that can allow for direct valuation and could provide landowners the opportunity to merchandise this natural capital. This paper provides a valuation and comparison, as a case study, of a traditional management scheme, including the marketing of fiber and recreational leases, and an ecosystem services management scheme, …
University Of Maine Integrated Forest Product Refinery (Ifpr) Technology Research, Hemant P. Pendse
University Of Maine Integrated Forest Product Refinery (Ifpr) Technology Research, Hemant P. Pendse
University of Maine Office of Research Administration: Grant Reports
This project supported research on science and technology that forms a basis for integrated forest product refinery for co-production of chemicals, fuels and materials using existing forest products industry infrastructure. Clear systems view of an Integrated Forest Product Refinery (IFPR) allowed development of a compelling business case for a small scale technology demonstration in Old Town, ME for co-production of biofuels using cellulosic sugars along with pulp for the new' owners of the facility resulting in an active project on Integrated Bio-Refinery (IBR) at the Old Town Fuel & Fiber. Work on production of advanced materials from woody biomass has …
Traditional Plant Use Of The Raglay In Cãu Gãy Village, Núi Chúa National Park, Alex Greene
Traditional Plant Use Of The Raglay In Cãu Gãy Village, Núi Chúa National Park, Alex Greene
Independent Study Project (ISP) Collection
Members of the Raglay community of Cãu Gãy Village were interviewed to determine the extent and nature of their traditional reliance on plants. This community, located in the buffer zone of Núi Chúa National Park, was found to utilize 64 plant species for a wide variety of uses. Botanical specimens and photographs were used to identify 42 plants to species level, 13 to genus level, and 6 to family level, while 3 remained unidentified. For each plant, the Raglay name, local Vietnamese name, use, specific application, and preparation were documented, as well as any details of ritual or commercial significance. …
Steps Toward Butternut (Juglans Cinerea L.) Restoration, Sunshine L. Brosi
Steps Toward Butternut (Juglans Cinerea L.) Restoration, Sunshine L. Brosi
Doctoral Dissertations
Butternut (Juglans cinerea L.), a lesser-known relative of black walnut (Juglans nigra L.), is a native tree species beneficial for wildlife, valuable for timber, and part of the great diversity of species in the eastern forests of North America. Populations of butternut are being devastated by butternut canker disease, caused by the fungus Sirococcus clavigignenti-juglandacearum (V.M.G. Nair, Kostichka, & Kuntz), which is thought to be introduced to North America. The disease causes multiple branch and stem cankers that eventually girdle trees. Small population sizes, lack of sprouting, and shade intolerance exacerbates the disease and results in permanent losses of butternut …
Chloroacetamid Spray Drift And Leaf Tatters In Hackberry, Ariana P. Miller
Chloroacetamid Spray Drift And Leaf Tatters In Hackberry, Ariana P. Miller
School of Natural Resources: Dissertations, Theses, and Student Research
During the last decade, leaf tatters has been reported in white oak and hackberry across several Midwestern states. Herbicide spray drift studies have shown that chloroacetamides can induce leaf tatters. The objectives of this research were to: 1) identify vulnerable bud developmental stages in hackberry and 2) determine if different commercial chloroacetamides affect severity of leaf tatters. In 2008, a preliminary spray drift experiment was conducted on mature trees from a former hackberry provenance test stand. Acetochlor (Harness), S-metolachlor (Dual II Magnum), and dimethenamid (Outlook) were applied at concentrations approximating 27%, 54%, 81%, or 108% of the recommended field rate. …
Slides: Second Thoughts About The Antiquities Act: Does The Process For Public Land Decisionmaking Have An Ethical Dimension?, James R. Rasband
Slides: Second Thoughts About The Antiquities Act: Does The Process For Public Land Decisionmaking Have An Ethical Dimension?, James R. Rasband
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: James R. Rasband, Dean of the J. Reuben Clark Law School, Brigham Young University (Provo, UT)
32 slides
Slides: Climate Change And Public Lands: Examples From National Parks, Stephen Saunders
Slides: Climate Change And Public Lands: Examples From National Parks, Stephen Saunders
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Stephen Saunders, President, The Rocky Mountain Climate Organization (Denver, CO)
40 slides
Slides: Climate Change Adaptation And The Federal Lands, Robert L. Glicksman
Slides: Climate Change Adaptation And The Federal Lands, Robert L. Glicksman
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Robert L. Glicksman, J.B. and Maurice C. Shapiro Professor of Environmental Law, George Washington University Law School (Washington, D.C.)
12 slides
The Mexican Spotted Owl Controversy: An Example Of The Esa’S Dominant Role In Federal Land Use Planning, Norman D. James
The Mexican Spotted Owl Controversy: An Example Of The Esa’S Dominant Role In Federal Land Use Planning, Norman D. James
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
19 pages, including illustrations and a map.
Includes footnotes.
Includes a 7 page publication by the U.S. Dept. of Agriculture, Forest Service, Southwest Region, titled: Changing Conditions in Southwestern Forests and Implications on Land Stewardship.
Slides: Water Management On Public Lands: Chapter 8 Of The Pllrc Report, Michael Gheleta
Slides: Water Management On Public Lands: Chapter 8 Of The Pllrc Report, Michael Gheleta
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Michael Gheleta, U.S. Department of the Interior, Office of the Solicitor (Lakewood, CO)
12 slides
Slides: Chapter 7 Of The Commission Report, David L. Bernhardt
Slides: Chapter 7 Of The Commission Report, David L. Bernhardt
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: David L. Bernhardt, Partner, Brownstein Hyatt Farber Schreck (Washington, DC) and former Solicitor for U.S. Department of the Interior
14 slides
Slides: Livestock Grazing On The Public Lands, Joe Feller
Slides: Livestock Grazing On The Public Lands, Joe Feller
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Joe Feller, Professor of Law, Arizona State University Law School; Visiting Professor, University of Colorado Law School
33 slides
Slides: America's Redrock Wilderness, Scott Groene
Slides: America's Redrock Wilderness, Scott Groene
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Scott Groene, Executive Director, Southern Utah Wilderness Alliance (Moab, UT)
23 slides
Slides: The Spotted Owl Controversy: An Example Of The Esa's Dominant Role In Federal Land Use Planning, Norman D. James
Slides: The Spotted Owl Controversy: An Example Of The Esa's Dominant Role In Federal Land Use Planning, Norman D. James
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Norman D. James, Director, Fennemore Craig, PC (Phoenix, AZ)
17 slides
Slides: Grazing On The Public Lands, William G. Myers Iii
Slides: Grazing On The Public Lands, William G. Myers Iii
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: William G. Myers III, Partner, Holland & Hart; former Solicitor of the U.S. Department of the Interior (Boise, ID)
8 slides
Agenda: The Past, Present, And Future Of Our Public Lands: Celebrating The 40th Anniversary Of The Public Land Law Review Commission's Report, One Third Of The Nation's Land, University Of Colorado Boulder. Natural Resources Law Center
Agenda: The Past, Present, And Future Of Our Public Lands: Celebrating The 40th Anniversary Of The Public Land Law Review Commission's Report, One Third Of The Nation's Land, University Of Colorado Boulder. Natural Resources Law Center
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Sponsors: US Dept. of the Interior, Bureau of Land Management; Western Resource Advocates; The Wilderness Society; National Wildlife Federation; Rocky Mountain Mineral Law Foundation Grants Program, Red Lodge Clearinghouse; United States Forest Service, Rocky Mountain Research Station.
Conference moderators, panelists and speakers included University of Colorado Law School professors William Boyd, David H. Getches, Sarah Krakoff, Mark Squillace and Charles F. Wilkinson.
In 1964 Congress established the Public Land Law Review Commission to review the public land laws of the United States and to determine whether revisions were necessary. The Commission was comprised of six members appointed by the President, …
Slides: Land Use Planning, Ann Morgan
Slides: Land Use Planning, Ann Morgan
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Ann Morgan, Vice President, The Wilderness Society (Denver, CO)
4 slides
Slides: Celebrating Flpma: Land Use Planning At The Blm, Marcilynn Burke
Slides: Celebrating Flpma: Land Use Planning At The Blm, Marcilynn Burke
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Marcilynn Burke, BLM Deputy Director - Programs and Policy, U.S. Dept. of the Interior, (Washington, D.C.)
30 slides
Slides: Why Public Lands? A Question Not Addressed 40 Years Ago, Thomas Michael Power
Slides: Why Public Lands? A Question Not Addressed 40 Years Ago, Thomas Michael Power
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
Presenter: Thomas Michael Power, Consulting Economist, Power Consulting; Research Professor and Professor Emeritus, Economics Department, University of Montana (Missoula, MT)
17 slides
Reminiscences, John A. Carver Jr.
Reminiscences, John A. Carver Jr.
The Past, Present, and Future of Our Public Lands: Celebrating the 40th Anniversary of the Public Land Law Review Commission’s Report, One Third of the Nation’s Land (Martz Summer Conference, June 2-4)
7 pages.