scholarly journals Site Productivity and Soil Conditions on Terraced Ponderosa Pine Sites in Western Montana

1999 ◽  
Vol 14 (1) ◽  
pp. 35-40 ◽  
Author(s):  
E. J. Zlatnik ◽  
T. H. DeLuca ◽  
K. S. Milner ◽  
D. F. Potts
Keyword(s):  
Pinus Ponderosa ◽  
Ponderosa Pine ◽  
Nutrient Concentrations ◽  
Soil Conditions ◽  
Usda Forest Service ◽  
Soil C ◽  
Mechanical Site Preparation ◽  
1960S And 1970S ◽  
The 1960S ◽  
Understory Biomass

Abstract The USDA Forest Service built terraces on the Bitterroot National Forest in the 1960s and 1970s as a means of mechanical site preparation prior to machine-planting ponderosa pine (Pinus ponderosa) in clearcuts. We examined the influence of terracing on planted ponderosa pine and soil characteristics more than 20 yr after site treatment and planting. Replicated plots at three separate paired (terraced/unterraced) sites were measured for tree diameter at breast height (dbh), total tree volume, planted tree volume and height, and understory biomass. Soil samples were analyzed for total C, Bray-1 extractable P, exchangeable K, soil pH, soil water-holding capacity, and particle size distribution. Terraced sites had significantly higher tree volumes, heights, and dbh, and higher silt contents than unterraced sites. Two of the three terraced sites also had greater understory biomass than the unterraced sites. Soil C and nutrient concentrations on terraced and unterraced pairs were generally similar. West. J. Appl. For. 14(1):35-40.

scholarly journals Effect of Silviculture on Carbon Pools during Development of a Ponderosa Pine Plantation

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 997
Author(s):  
Jie Zhang ◽  
Jianwei Zhang ◽  
Kim Mattson ◽  
Kaelyn Finley
Keyword(s):  
Pinus Ponderosa ◽  
Ponderosa Pine ◽  
Forest Floor ◽  
Developmental Stages ◽  
Stand Density ◽  
Planting Density ◽  
Carbon Pools ◽  
Soil C ◽  
Vegetation Control ◽  
Competing Vegetation

Forest stands can be considered as dynamic carbon pools throughout their developmental stages. Silvicultural thinning and initial planting densities for reforestation not only manipulate the structure or composition of vegetation, but also disturb forest floor and soils, which, in turn, influences the dynamics of carbon pools. Understanding these carbon pools both spatially and temporally can provide useful information for land managers to achieve their management goals. Here, we estimated five major carbon pools in experimental ponderosa pine (Pinus ponderosa) plots that were planted to three levels of spacing and where competing vegetation was either controlled (VC) or not controlled (NVC). The objectives were to determine how an early competing vegetation control influences the long-term carbon dynamics and how stand density affects the maximum carbon (C) sequestration for these plantations. We found that planting density did not affect total ecosystem C at either sampling age 28 or 54. Because of competing vegetation ingrowth, the NVC (85 ± 14 Mg ha−1) accumulated greater C than the VC (61 ± 6 Mg ha−1) at age 28. By age 54, the differences between treatments narrow with the NVC (114 ± 11 Mg ha−1) and the VC (106 ± 11 Mg ha−1) as the pines continue to grow relatively faster in the VC when compared to NVC and C of ingrowth vegetation decreased in NVC, presumably due to shading by the overstory pines. The detritus was not significantly different among treatments in either years, although the mean forest floor and soil C was slightly greater in NVC. While NVC appears to sequester more C early on, the differences from the VC were rather subtle. Clearly, as the stands continue to grow, the C of the larger pines of the VC may overtake the total C of the NVC. We conclude that, to manage forests for carbon, we must pay more attention to promoting growth of overstory trees by controlling competing vegetation early, which will provide more opportunities for foresters to create resilient forests to disturbances and store C longer in a changing climate.

The effect of a prescribed fire on nutrient concentration and standing crop of understory vegetation in ponderosa pine

1983 ◽  
Vol 13 (3) ◽  
pp. 501-507 ◽  
Author(s):  
Gary R. Harris ◽  
W. Wallace Covington
Keyword(s):  
United States ◽  
Nutrient Availability ◽  
Prescribed Fire ◽  
Ponderosa Pine ◽  
Standing Crop ◽  
Nutrient Concentration ◽  
Understory Vegetation ◽  
Nutrient Concentrations ◽  
Understory Biomass ◽  
Consistent Response

Understory vegetation from sawtimber, pole, and sapling strata was sampled for biomass and nutrient concentrations, the summer following a fall-prescribed fire in ponderosa pine on basalt soils in Arizona, United States. Nutrient concentrations were generally higher on burned than unburned plots, with striking differences among overstory strata. K showed the most consistent response, while N showed the greatest increase in magnitude. The greatest increases in nutrients were in the sawtimber stratum, where Festucaarizonica Vasey and the miscellaneous grasses category were at times twice as high in N concentration on the burned sites. Differences in understory biomass were most obvious in September when both pole and sapling strata were twice as high on burned plots as controls. These production and nutrient responses varied highly depending on species considered, overstory type, and season. However, in general this prescribed fire appears to have increased nutrient availability, stimulating understory production and increasing nutrient concentration thus improving forage quality for both livestock and wildlife.

Carbon pools of managed and unmanaged stands of ponderosa and lodgepole pine forests in Wyoming

2009 ◽  
Vol 39 (10) ◽  
pp. 1893-1900 ◽  
Author(s):  
A. Chatterjee ◽  
G. F. Vance ◽  
D. B. Tinker
Keyword(s):  
Pinus Ponderosa ◽  
Ponderosa Pine ◽  
Pinus Contorta ◽  
Management Practices ◽  
Lodgepole Pine ◽  
Timber Harvesting ◽  
Major Influence ◽  
Forest Types ◽  
Soil C ◽  
C Pools

Forest management practices can have a significant effect on above- and below-ground carbon (C) pools. To better understand the distribution of forest C pools, we evaluated representative forest stands within two dominant Wyoming forest types to assess differences resulting from management practices that have occurred over several decades. Study sites included four ponderosa pine ( Pinus ponderosa Douglas ex Lawson & C.Lawson) treatments (100-year-old unmanaged, 46-year-old even-aged, 110-year-old uneven-aged, and 90-year-old intensively harvested) and two lodgepole pine ( Pinus contorta Engelm. var. latifolia (Engelm. ex Wats.) Critchfield) treatments (145-year-old unmanaged and 45-year-old even-aged). Comparisons of aboveground C pools revealed that distributions of live and dead biomass C pools were different between unmanaged and managed stands; however, belowground soil C pools were similar among stands within the two forest types. Overall, unmanaged stands of both forest types had higher total ecosystem C pools (249 and 247 Mg C·ha–1 for ponderosa and lodgepole pine, respectively) compared with managed stands (ponderosa pine: even-aged, 164 Mg C·ha–1; uneven-aged, 170 Mg C·ha–1; intensively harvested, 200 Mg C·ha–1; and lodgepole pine even-aged, 117 Mg C·ha–1). Our results indicate timber harvesting has a major influence on total ecosystem C pools by reducing live tree biomass.

Ken Russell's Wartime Imagery

2015 ◽  
Vol 12 (4) ◽  
pp. 539-555 ◽  
Author(s):  
Kevin M. Flanagan
Keyword(s):  
Second World War ◽  
World War ◽  
War Films ◽  
Personal Style ◽  
American Cinema ◽  
1960S And 1970S ◽  
The 1960S ◽  
Second World ◽  
Wartime Experience ◽  
National Experience

This article traces Ken Russell's explorations of war and wartime experience over the course of his career. In particular, it argues that Russell's scattered attempts at coming to terms with war, the rise of fascism and memorialisation are best understood in terms of a combination of Russell's own tastes and personal style, wider stylistic and thematic trends in Euro-American cinema during the 1960s and 1970s, and discourses of collective national experience. In addition to identifying Russell's recurrent techniques, this article focuses on how the residual impacts of the First and Second World Wars appear in his favoured genres: literary adaptations and composer biopics. Although the article looks for patterns and similarities in Russell's war output, it differentiates between his First and Second World War films by indicating how he engages with, and temporarily inhabits, the stylistic regime of the enemy within the latter group.

Mind Bending, Mental Seduction and Menticide: Brainwashing in British Spy Dramas of the 1960s

2013 ◽  
Vol 10 (1) ◽  
pp. 27-48 ◽  
Author(s):  
Alan Burton
Keyword(s):  
Cold War ◽  
Thought Control ◽  
Cultural Contexts ◽  
Scientific Background ◽  
Mind Control ◽  
1960S And 1970S ◽  
The 1960S ◽  
The Cold War ◽  
The Mind ◽  
Cultural Fantasy

Brainwashing assumed the proportions of a cultural fantasy during the Cold War period. The article examines the various political, scientific and cultural contexts of brainwashing, and proceeds to a consideration of the place of mind control in British spy dramas made for cinema and television in the 1960s and 1970s. Particular attention is given to the films The Mind Benders (1963) and The Ipcress File (1965), and to the television dramas Man in a Suitcase (1967–8), The Prisoner (1967–8) and Callan (1967–81), which gave expression to the anxieties surrounding thought-control. Attention is given to the scientific background to the representations of brainwashing, and the significance of spy scandals, treasons and treacheries as a distinct context to the appearance of brainwashing on British screens.

The ‘Modernisation’ of Scotland and its Impact on Glasgow, 1955–1979: ‘Unwanted Side Effects’ and Vulnerabilities

2016 ◽  
Vol 25 (3) ◽  
pp. 294-316 ◽  
Author(s):  
Chik Collins ◽  
Ian Levitt
Keyword(s):  
Side Effects ◽  
Government Policy ◽  
Regional Policy ◽  
Excess Mortality ◽  
Policy Agenda ◽  
Policy Makers ◽  
Uk Government ◽  
1960S And 1970S ◽  
The 1960S ◽  
The Impact

This article reports findings of research into the far-reaching plan to ‘modernise’ the Scottish economy, which emerged from the mid-late 1950s and was formally adopted by government in the early 1960s. It shows the growing awareness amongst policy-makers from the mid-1960s as to the profoundly deleterious effects the implementation of the plan was having on Glasgow. By 1971 these effects were understood to be substantial with likely severe consequences for the future. Nonetheless, there was no proportionate adjustment to the regional policy which was creating these understood ‘unwanted’ outcomes, even when such was proposed by the Secretary of State for Scotland. After presenting these findings, the paper offers some consideration as to their relevance to the task of accounting for Glasgow's ‘excess mortality’. It is suggested that regional policy can be seen to have contributed to the accumulation of ‘vulnerabilities’, particularly in Glasgow but also more widely in Scotland, during the 1960s and 1970s, and that the impact of the post-1979 UK government policy agenda on these vulnerabilities is likely to have been salient in the increase in ‘excess mortality’ evident in subsequent years.

The Fragmentation of the Palestinian Political Field

2018 ◽  
Vol 11 (1-2) ◽  
pp. 189-216
Author(s):  
Jamil Hilal
Keyword(s):  
Women Workers ◽  
Political Leadership ◽  
The Political ◽  
Political Field ◽  
Cultural Field ◽  
National Representation ◽  
1960S And 1970S ◽  
The 1960S ◽  
Palestinian National Movement ◽  
The Relationship

The mid-1960s saw the beginnings of the construction of a Palestinian political field after it collapsed in 1948, when, with the British government’s support of the Zionist movement, which succeeded in establishing the state of Israel, the Palestinian national movement was crushed. This article focuses mainly on the Palestinian political field as it developed in the 1960s and 1970s, the beginnings of its fragmentation in the 1990s, and its almost complete collapse in the first decade of this century. It was developed on a structure characterized by the dominance of a center where the political leadership functioned. The center, however, was established outside historic Palestine. This paper examines the components and dynamics of the relationship between the center and the peripheries, and the causes of the decline of this center and its eventual disappearance, leaving the constituents of the Palestinian people under local political leadership following the collapse of the national representation institutions, that is, the political, organizational, military, cultural institutions and sectorial organizations (women, workers, students, etc.) that made up the PLO and its frameworks. The paper suggests that the decline of the political field as a national field does not mean the disintegration of the cultural field. There are, in fact, indications that the cultural field has a new vitality that deserves much more attention than it is currently assigned.

Book Reviews

2015 ◽  
Vol 33 (3) ◽  
pp. 88-107
Author(s):  
Louise K. Davidson-Schmich ◽  
Jennifer A. Yoder ◽  
Friederike Eigler ◽  
Joyce M. Mushaben ◽  
Alexandra Schwell ◽  
...  
Keyword(s):  
Print Media ◽  
Forced Migration ◽  
Way Of Life ◽  
The West ◽  
Politics Of Memory ◽  
German State ◽  
East German ◽  
1960S And 1970S ◽  
The 1960S

Konrad H. Jarausch, United Germany: Debating Processes and Prospects Reviewed by Louise K. Davidson-Schmich Nick Hodgin and Caroline Pearce, ed. The GDR Remembered:Representations of the East German State since 1989 Reviewed by Jennifer A. Yoder Andrew Demshuk, The Lost German East: Forced Migration and the Politics of Memory, 1945-1970 Reviewed by Friederike Eigler Peter H. Merkl, Small Town & Village in Bavaria: The Passing of a Way of Life Reviewed by Joyce M. Mushaben Barbara Thériault, The Cop and the Sociologist. Investigating Diversity in German Police Forces Reviewed by Alexandra Schwell Clare Bielby, Violent Women in Print: Representations in the West German Print Media of the 1960s and 1970s Reviewed by Katharina Karcher Michael David-Fox, Peter Holquist, and Alexander M. Martin, ed., Fascination and Enmity: Russia and Germany as Entangled Histories, 1914-1945 Reviewed by Jennifer A. Yoder

Mobile Perception and the Automotive Prosthetic

Transfers ◽  
2011 ◽  
Vol 1 (1) ◽  
pp. 73-96 ◽  
Author(s):  
Charissa N. Terranova
Keyword(s):  
Urban Sprawl ◽  
Human Body ◽  
Conceptual Art ◽  
Robert Smithson ◽  
Martha Rosler ◽  
The World ◽  
1960S And 1970S ◽  
The 1960S ◽  
And Linguistics

This essay focuses on a body of photoconceptual works from the 1960s and 1970s in which the automobile functions as a prosthetic-like aperture through which to view the world in motion. I argue that the logic of the “automotive prosthetic“ in works by Paul McCarthy, Dennis Hopper, Ed Ruscha, Jeff Wall, John Baldessari, Richard Prince, Martha Rosler, Robert Smithson, Ed Kienholz, Julian Opie, and Cory Arcangel reveals a techno-genetic understanding of conceptual art, functioning in addition and alternatively to semiotics and various philosophies of language usually associated with conceptual art. These artworks show how the automobile, movement on roads and highways, and the automotive landscape of urban sprawl have transformed the human sensorium. I surmise that the car has become a prosthetic of the human body and is a technological force in the maieusis of the posthuman subject. I offer a reading of specific works of photoconceptual art based on experience, perception, and a posthumanist subjectivity in contrast to solely understanding them according to semiotics and linguistics.

MINING THE ARCHIVES: A POTTERY SEQUENCE FOR BORNO, NIGERIA

2003 ◽  
Vol 1 (1) ◽  
pp. 39-76 ◽  
Author(s):  
Graham Connah ◽  
S.G.H. Daniels
Keyword(s):  
Large Body ◽  
Archaeological Research ◽  
Independent Data ◽  
Frankfurt Am Main ◽  
Archaeological Pottery ◽  
New Findings ◽  
History Of ◽  
1960S And 1970S ◽  
The 1960S ◽  
Johann Wolfgang Goethe

New archaeological research in Borno by the Johann-Wolfgang-Goethe-Universität, Frankfurt am Main, Germany, has included the analysis of pottery excavated from several sites during the 1990s. This important investigation made us search through our old files for a statistical analysis of pottery from the same region, which although completed in 1981 was never published. The material came from approximately one hundred surface collections and seven excavated sites, spread over a wide area, and resulted from fieldwork in the 1960s and 1970s. Although old, the analysis remains relevant because it provides a broad geographical context for the more recent work, as well as a large body of independent data with which the new findings can be compared. It also indicates variations in both time and space that have implications for the human history of the area, hinting at the ongoing potential of broadscale pottery analysis in this part of West Africa and having wider implications of relevance to the study of archaeological pottery elsewhere.

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