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Showing 1 to 20 of 62 for “"Cottonwood"”.
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Cottonwood Establishment in a Gravel-Bed River
… the processes of establishment of the cottonwood Populus trichocarpa T.&G. along the pristine, 5th order, wandering floodplain of the gravel-bed Flathead River, Montana, USA. The focus of my research was to determine the mechanisms explaining successful recruitment on recently formed, …
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Cottonwood Establishment in a Gravel-Bed River
… the processes of establishment of the cottonwood Populus trichocarpa T.&G. along the pristine, 5th order, wandering floodplain of the gravel-bed Flathead River, Montana, USA. The focus of my research was to determine the mechanisms explaining successful recruitment on recently formed, …
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Productivity and biomass partitioning in 20-year Black cottonwood at variable spacing
… and the branching ratio in 20-year old Black cottonwood (Populus balsamifera L. ssp. trichocarpa (Torr. & A. Gray ex Hook.) Brayshaw) experimental plantation within Sandlækjarmýri research forest in southern Iceland. Data and wood samples were collected from 40 trees of 8 different spacing …
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Growth and nutrient relations in black cottonwood in South-Coastal British Columbia
… relationships between the growth of black cottonwood, expressed as site index, and site units, under story vegetation, soil nutrient contents, and foliar nutrient concentrations in29 black cottonwood stands in south-coastal British Columbia. The final phase of the study was a fertilizer …
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Assessing Efforts To Reduce Sediment Impacts In Cottonwood Creek, Blackfoot Basin, Montana
… assesses efforts to reduce sediment impacts in Cottonwood Creek, a tributary to the Blackfoot River in western Montana. The first objective evaluated trade-offs in stream crossing improvements regarding short-term sediment impacts versus long-term reductions in sediment load from road surface …
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Assessing Efforts To Reduce Sediment Impacts In Cottonwood Creek, Blackfoot Basin, Montana
… assesses efforts to reduce sediment impacts in Cottonwood Creek, a tributary to the Blackfoot River in western Montana. The first objective evaluated trade-offs in stream crossing improvements regarding short-term sediment impacts versus long-term reductions in sediment load from road surface …
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Carbon Dioxide Emissions from Switchgrass and Cottonwood Grown as Bioenergy Crops in the Lower Mississippi Alluvial Valley
… use [switchgrass (<em>Panicum virgatum</em>), cottonwood (<em>Populus deltoides</em>), and a soybean (<em>Glycine max</em>)-grain sorghum (<em>Sorghum bicolor</em>) agroecosystem] on monthly soil respiration and estimated annual CO <sub>2</sub> emissions on a silt loam in east-central Arkansas …
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An Assessment on the Cultivation of Black Cottonwood Cuttings in Nootka Lupine Fields in Conjunction with Site Preparation
… in which the planting of cuttings from two black cottonwood clones were prepared using three mechanical methods in addition to an undisturbed control plot. The first year results are reported here. Site preparation was effective in increasing survival and growth of planted cuttings at both sites. …
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Relationship of Cottonwood Creek field, Washakie County, Wyoming, to carbonate facies of Permian Goose Egg formation, eastern Bighorn Basin
Includes bibliographical references (pages 284-299).
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Wildlife Habitat Evaluation of the Unchannelized Missouri River in South Dakota
… up the non-developed land in the study area: cottonwood-dogwood (16 percent), cottonwood-willow (9 percent), elm-oak (7 percent), cattail marsh (3 percent), sand dune (3 percent), and sand bar (1 percent). All non-developed habitats except sand bar were sampled to obtain vegetative composition …
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Partitioning of multivariate phenotypes using regression trees reveals complex patterns of adaptation to climate across the range of black cottonwood (Populus trichocarpa)
… be reflected in adaptive traits. We used black cottonwood (Populus trichocarpa) as a model to characterize the interplay between geography, climate, and adaptation to abiotic factors. Twelve traits (height, diameter, volume index, crown diameter, number of branches, number of sylleptic branches, …
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Quantitative anatomical characteristics of plantation grown loblolly pine (Pinus taeda L.) and cottonwood (Populus deltoides Bart. ex Marsh) and their relationships to mechanical properties
… properties of loblolly pine (Pinus taeda L.) and cottonwood (Populus deltoides Barto ex. Marsh.), both from intensively managed woodlands, were quantitatively characterized using the principles of stereology. Physical and mechanical properties were also determined for each growth increment of six …
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Chronology and paleoenvironment of Peoria Silt deposition and Jules Geosol development along the Illinois Valley, Illinois, USA
… time of the last glacial maximum. Two sites, New Cottonwood School and Thomas Quarry, which contain the Jules Geosol, were selected along the Illinois Valley to develop new chronologies of Peoria Silt deposition and measure changes in geochemical and geophysical properties, as well as gastropod …
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Changes in Wetland Conditions and Wetland Plant Communities in the Prairie Pothole Region After 50 Years
… chemistry on three study areas: Crystal Springs, Cottonwood, and Mt. Moriah. Within in this region, a severe drought occurred in 1988- 1992 followed by the longest deluge starting in 1993 with wetlands still impacted today. In 2013 and 2014, I revisited 80 of the original wetlands measuring water …
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