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2 edition of Effects of windthrow on soil properties and spatial variability in southeast Alaska found in the catalog.

Effects of windthrow on soil properties and spatial variability in southeast Alaska

Fred Howard Bowers

Effects of windthrow on soil properties and spatial variability in southeast Alaska

  • 151 Want to read
  • 15 Currently reading

Published by United States Dept. of Agriculture, Forest Service, Alaska Region in [Alaska] .
Written in English

    Places:
  • Alaska.
    • Subjects:
    • Forest soils -- Alaska.,
    • Windfall (Forestry) -- Alaska.

    • Edition Notes

      Statementby Fred Howard Bowers.
      Classifications
      LC ClassificationsSD390.3.A4 B69 1987
      The Physical Object
      Paginationix, 185 p. :
      Number of Pages185
      ID Numbers
      Open LibraryOL3597650M
      LC Control Number2002320168
      OCLC/WorldCa17870719

      The coverage is virtually worldwide. Diagrams, maps, and photographs are numerous, excellent, and highly relevant. The book is well documented with an impressive page bibliography Highly recommended.' J. D. Ives Source: Choice 'The book is suitable reference material for researchers, university students, land managers and related policy Cited by: 5.   On Kuiu Island, southeast Alaska, we used field validation photo-interpretation procedures to identify forest patches likely to be of windthrow origin. A spatially explicit logistic model was then built from the windthrow data and other GIS data layers, based on slope, elevation, soil type, and exposure to prevailing storm winds. On Kuiu Island, southeast Alaska, we used field validation photo‐interpretation procedures to identify forest patches likely to be of windthrow origin. A spatially explicit logistic model was then built from the windthrow data and other GIS data layers, based on slope, elevation, soil type, and exposure to prevailing storm by: The University of Alaska is an affirmative action/equal opportunity employer and educational institution. The University of Alaska does not discriminate on the basis of race, religion, color, national origin, citizenship, age, sex, physical or mental disability, status as a protected veteran, marital status, changes in marital status, pregnancy, childbirth or related medical conditions.


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Effects of windthrow on soil properties and spatial variability in southeast Alaska by Fred Howard Bowers Download PDF EPUB FB2

The effect of windthrow disturbances on biochemical and chemical soil properties in the northern mountainous forests of Iran. F.H. BowersEffects of Windthrow on Soil Properties and Spatial Variability in Southeast Alaska (Ph.D.

Thesis) University of Washington, USA () Google by: Processes responsible for the development of a pit and mound microrelief. Effects of windthrow on soil properties and spatial variability in Southeast Alaska.

PhD thesis, University of Washington, USA. Google Scholar. Corbel, Cited by: This is a measure of the spatial extent within which soil properties show a strong correlation. A large value of δ implies that the soil property is highly correlated over a large spatial extent, resulting in a smooth variation within the soil profile.

On the other hand, a small value indicates that the fluctuation of the soil property is large (Li and Lumb, ).Cited by: If we consider the effect of variation in k on soil respiration only, the extra loss of carbon during the first rotation period after a storm would be, and kg C m À2 for k of 5.

An analysis of the effects of spatial variability of soil and soil moisture on runoff Bruno Merz GeoForschungsZentrum Potsdam, Potsdam, Germany Erich J. Plate Institute for Hydrology and Water Resources Planning, University of Karlsruhe, Karlsruhe, Germany by: gated in literature using deterministic approaches where average values of the soil properties were used.

In this paper, a probabilistic dynamic approach is presented for the slope stability analysis. In this approach, the effect of the soil spatial variability on the dynamic responses was investigated.

We investigated successional trends on windthrow mounds in two old-growth Tsuga heterophylla-Picea sitchensis forests in northern southeast Alaska to determine the influence of windthrow disturbance on the maintenance of plant diversity.

We were particularly interested in assessing the value of mosses in detecting long-term effects of disturbance in temperate by: explicitly account for the effect of the spatial variability of soil properties.

The RFEM is adopted in this paper to investigate the effect of spatial variability on the Effects of windthrow on soil properties and spatial variability in southeast Alaska book of a soil slope. Kramer et al. () followed the carbon dynamics across wind-disturbed stands of various ages in Alaska and found remobilization and transport of carbon between fractions in the soil and vegetation.

These examples suggest that carbon stores are relatively robust to windthrow disturbances, but if the frequency of severe windstorms were to. Introduction [2] Soil moisture is an important variable in many land surface models since it controls the partitioning of fluxes of both water and energy.

However soil moisture shows a large spatial variability, and the relation between soil moisture dynamics at a point (i.e., the scale of most observations) and that of a larger area (field, region) are still poorly by: Vol. 85, No.

8, Aug., Published by: Wiley on behalf of the Ecological Society of America. Soil Carbon Dynamics across a Windthrow Disturbance Sequence in Southeast Alaska.

Soil Carbon Dynamics across a Windthrow Disturbance Sequence in Southeast Alaska (pp. Bowers F () Effects of windthrow on soil properties and spatial variability in Southeast Alaska.

PhD Thesis, University of Washington, Seattle Google Scholar Brewer SW, Rejmanek M, Webb MAH, Fine PVA () Relationship of phytogeography and diversity of tropical tree species with limestone topography in southern : Khan Towhid Osman.

Cellulose decomposition in southeast Alaskan forests: effects of pit and mound Effects of windthrow on soil properties and. spatial variability in southeast Alaska. Ph.D. dissertation, Uni. Effects of windthrow disturbance on a forest bird community depend on spatial scale.

characteristics in areas prone to and protected from windthrow. On Kuiu Island, southeast Alaska, we used. Kramer MG, Sollins P, Sletten RS () Soil carbon dynamics across a windthrow disturbance sequence in southeast Alaska.

Ecology – CrossRef Google Scholar Lavoie S, Ruel J-C, Bergeron Y, Harvey BD () Windthrow after Cited by: 3. The aims of this study were to compare elevation data obtained from a combine harvester yield monitor and a hand RTK-GPS, and to evaluate the relationships between the spatial variation of cereal yield, selected crop nutrient concentration and topographic attributes derived from the two sources of elevation by: In this approach, the effect of both the soil spatial variability and the variability of the Ground-Motion (GM) time history on the dynamic responses (amplification, permanent displacement) are studied and discussed.

The soil shear modulus G is considered as an isotropic non-Gaussian random field. Information of these soil-forming factors can be used to capture and predict the spatial variation of soil properties, e.g., illustrated for soil organic carbon (SOC) stocks over Alaska [Mishra.

windthrow. On Kuiu Island, southeast Alaska, we used field validation photo-interpretation procedures to identify forest patches likely to be of windthrow origin.

A spatially explicit logistic model was then built from the windthrow data and other GIS data layers, based on slope, elevation, soil type, and exposure to prevailing storm winds. Analysis of the spatial variability of soil properties is important to explain the site-specific ecosystems.

Spatial patterns of some soil properties such as soil texture, exchangeable sodium percentage (ESP), electrical conductivity (ECe), soil pH and cation exchange capacity (CEC) were analyzed in salt and sodic affected soils in the south of the Ardabil province, in the northwest of Cited by: variability with progressively higher elevation ecosystems illustrates the ability of vegetation to dampen the variability of both parameters.

Keywords: soil moisture, snow water equivalent, spatial variability, lognormal distribution INTRODUCTION Snowmelt is usually the most important annual hydrological event in streams draining northern regions.

John J. Finnigan, in Plant Disturbance Ecology, Windthrow and Crop Lodging. This subject is treated in much more detail in Chapter I simply make the connection between the properties of the turbulent wind field in canopies and the key factors contributing to erable work has been done in the last two decades on the detailed mechanisms by which individual trees or.

While no direct interactions among plants and SOM properties could be determined, plants significantly affected soil microclimate. Windthrow had no obvious effect on F s because reduced autotrophic soil respiration (R a) was offset by a ∼60% increase in heterotrophic soil respiration (R h), principally due to increased soil by: Redman, E.C.,An unconformity with associated conglomeratic sediments in the Berners Bay area of southeast Alaska, in Alaska Division of Geological & Geophysical Surveys, Short notes on Alaskan geology: Alaska Division of Geological & Geophysical Surveys Professional Report 86A, p.

RDF Daanen, R.D., and Wikstrom Jones, Katreen,High-resolution lidar data for the Chilkat Ridge area, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File11 p. Managing Alaska Soils Essential Soil Science Topics for the. Commercial and Backyard Crop Producer. growth through their effect on the chemical, biologi-cal and physical properties of the soil.

Humus serves ence on soil chemical properties. In addition. Effects of wildfire and permafrost on soil organic matter and soil climate in interior Alaska Topography controls post-fire changes in soil properties in a Chinese boreal forest, Science of The Total Environment, Nonlinear responses of white spruce growth to climate variability in interior Alaska, Canadian Journal of Forest Research, Few studies have examined the influence of natural disturbances, such as windthrow, on soil organic matter formation, stabilization, and loss in soils.

In shallow (windthrow activity may result in the redistribution and mixing of mineral and organic soil horizons down to by: In a comparative study of mounds with mean ages of approximatand > years in coniferous rainforests of southeast Alaska, Den Ouden and Alaback found that the role of windthrow in the maintenance of high understory diversity was more or less restricted to the first decades after the disturbance.

With diminishing habitat heterogeneity and environmental conditions that become less Cited by: 3. GPR Burns, L.E., Graham, G.R.C., Barefoot, J.D., American Copper & Nickel Company, Inc., Geoterrex-Dighem, and WGM, Inc.,Dolomi electromagnetic and.

Wind disturbance plays a fundamental role in shaping forest dynamics in southeast Alaska. Recent studies have increased our appreciation for the effects of wind at both large and small scales. Current thinking is that wind disturbance characteristics change over a continuum dependent on landscape features (e.g., exposure, land.

RI A Suleimani, E.N., Nicolsky, D.J., and Koehler, R.D.,Potential maximum permanent flooding, Yakutat, Alaska, in Suleimani, E.N., Nicolsky, D.J., and. Ecology, 85(8),pp.

– q by the Ecological Society of America SOIL CARBON DYNAMICS ACROSS A WINDTHROW DISTURBANCE SEQUENCE IN SOUTHEAST ALASKA MARC G. KRAMER,1 PHILLIP SOLLINS,2 AND RONALD S. SLETTEN3 1Ecosystem Science and Technology Branch, Earth Science Division, NASA AMES, Mail Stop –4, Moffett Field, California USA.

Physical effects of weather events on the abundance and diversity of insects in North American forests. Kamal J.K. Gandhi, a b Daniel W. Gilmore, b Steven A. Katovich, c William J. Mattson, d John R. Spence, e Steven J. Seybold a b.

a Department of Entomology, Hodson Hall, Folwell Avenue, University of MN, St. Paul, MNby: Geography and climate: The Alaskan Pacific maritime ecosystems covered in this synthesis occur along the Pacific Coast from eastern Kodiak Island south and east through southeastern Alaska and into northern British Columbia.

This corresponds to the distribution of Sitka spruce in Alaska and northern British Columbia [30,], the coastal rainforests ecological province described by Barrett et. Inhibitory effects of substances from residues and extracts of staghorn fern (Dicranopteris linearis).

Flood variability and spatial variation in plant community composition and structure on a large arid Successional trends and biomass of mosses on windthrow mounds in the temperate rainforests of southeast Alaska.

Vegetatio,–Cited by: However, the effects of widespread tree mortality associated with wind disturbances on soil properties have not yet been described in this vast region.

We investigated short-term effects (7 years after disturbance) of widespread tree mortality caused by a squall line event from mid-January of on soil carbon stocks and concentrations in a. Description of STATSGO2 Database. The Digital General Soil Map of the United States or STATSGO2 is a broad-based inventory of soils and non-soil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped ofin the continental U.S., Hawaii, Puerto Rico, and the Virgin Islands andin Alaska.

The effects of soil pedoturbation (i.e., pit and mound microtopography, PM) on development of herbaceous plant species and woody species regeneration were examined in a temperate beech forest (Fagus orientalis Lipsky) in northern Iran.

We recorded the vegetation in 20 pairs of disturbed and adjacent undisturbed plots and established a. Liss, S.A., and Wiltse, M.A.,United States Geological Survey Alaska Mineral Resource Appraisal Program (AMRAP) geochemical data for Bradfield Canal Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Public Data File G, 6 p.

Representing the effects of subgrid variability of soil moisture on runoff generation in a land surface model. Both approaches aim to describe the impact of subgrid variability of soil moisture on runoff production.

[5] and retain useful information about spatial by: material for subsequent soil formation (Bormann et al., ). Often modal concepts of the mapped soil series are not expressed throughout the mapping unit and a broad range of characteristics exists.

Therefore, rather than relying on ideal expressions of soil type, we rely on general soil geomorphic rela-Author's personal copy. We reviewed studies dealing with regeneration under variable conditions in boreal and hemiboreal forests as affected by different microsite types by tree species functional groups.

Generally, the importance of storm-induced microsites for regeneration dynamics in boreal forests depends on several factors: (1) distribution and type of microsites (generated by storm characteristics and stand.