Changing Late Holocene Flooding Frequencies on the Columbia River, Washington

Chatters, James C.; Hoover, Karin A.

doi:10.1016/0033-5894(86)90092-x

Cited by 28 publications

(17 citation statements)

References 14 publications

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“…In addition, Chatters (1989, Chatters and Hoover 1986 reviews the work of Baker (1983), Barnosky et al (1987), andMehringer (1985), among others, and summarizes the evidence for climatic and ecological change in the Hanford Site region of the Columbia Basin for the last 10,000 years or so. Chatters concludes that the period between 10,000 and 8500 years ago was 'characterized by a period of warmer-than-modern summers, colder-than-modern winters and low, spring-dominant precipitation, supporting extensive grasslands in Southeastern Washington in areas that are now dominated by sagebrush steppe.…”

Section: Effects Of Climate Change On Plants and Animalsmentioning

confidence: 99%

The role of plants and animals in isolation barriers at Hanford, Washington

Link¹,

Cadwell²,

Petersen³

et al. 1995

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SummaryThe Hanford Site Surface Barrier Development Program was organized in 1985 to test the effectiveness of various barrier designs in minimizing the effects of water infiltration; plant, animal, and human intrusion; and wind and water erosion on buried wastes, and in minimizing the emanation of noxious gases. Plants will serve to minimize drainage and erosion, but present the potential for growing roots into wastes. Animals burrow holes into the soil, and the burrow holes could allow water to preferentially drain into the waste. They also bring soil to the surface which, if wastes are incorporated, could present a risk for the dispersion of wastes into the environment. This report reviews work done to assess the role of plants and animals in isolation barriers at Hanford. It also reviews work done to understand the potential effects from climate change on the plants and animals that may inhabit barriers in the future.Plant studies have been done on community analysis, root characteristics, water balance, and water and wind erosion. Community analyses are reviewed in the context of native plants, invasive aliens, community dynamics, and revegetation efforts. Roots are examined with respect to water balance, other root functions, and intrusion into wastes. Water balance studies have been done at various locations on site, including McGee Ranch, the 300 North grass site, the Artemisia tridentuta/ Pseudoroegneria spicata community, and at Lower Snively field. Numerous lysimeter studies have examined the role of vegetation in water balance. Work has been reviewed to quanti@ the relationship plants have on water and wind erosion.Animal studies have focused on burrowing effects on soil water balance and the transport of buried wastes to the surface. This has been done for small and large mammals on site. Studies done to determine the role of animals on waste transport to the surface are reviewed.Studies on the role of plants and animals on barriers and climate change at Hanford were reviewed. Climate change studies have focused on assessing the potential range of climate conditions barriers may be exposed to over thousands of years and the potential consequences of such exposure on the plants and animals that may inhabit a barrier, and the water balance of a barrier. Climate change studies indicate that the present interglacial may last another 10,000 years, with the continental glacial ice reaching its maximum extent (important for the Pasco Basin because of its potential for contributing to catastrophic flooding) 100,000 years or more into the future.The optimal plant community for barrier function is one composed of deep-rooted perennial shrubs and grasses. Deep-rooted perennial shrubs and grasses will minimize the risk of water drainage into the wastes and minimize erosion. The establishment of such a community in the face of the encroachment of invasive alien species is critical for proper barrier function. Investigations into the characteristics of new invasive alien species are needed. Continued research on ...

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Section: Effects Of Climate Change On Plants and Animalsmentioning

confidence: 99%

The role of plants and animals in isolation barriers at Hanford, Washington

Link¹,

Cadwell²,

Petersen³

et al. 1995

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“…Ref. [7]) are generally thin, commonly less than 25 cm thick. Thicker flood deposits are possible in backwater (flood basin) settings, but such rapid deposition is typically associated with large instantaneous discharges, rapid water velocities, and coarse (sand and gravel) textured deposits.…”

Section: Discussionmentioning

confidence: 99%

Determining the provenience of Kennewick Man skeletal remains through sedimentological analyses

Huckleberry

Stein

Goldberg

2003

Journal of Archaeological Science

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We present the results of a sedimentological study of a 9300 calendar yr old disarticulated skeleton known as Kennewick Man. Micromorphological, granulometric, mineralogical, and chemical analyses were performed on sediments from the skeleton and streambank adjacent to where the bones were found. Our results support earlier estimates that the skeleton eroded out from an 80 cm section of Columbia River flood deposits. Fine-textured sediments from the burial site attached to the bones indicate a low energy, fluvial depositional environment. Given the taphonomic evidence that Kennewick Man was rapidly buried, we believe that the stratigraphic and sedimentological evidence support the hypothesis that the body was interred by humans in the ground rather than being quickly buried by overbank flooding.

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“…(2000), cette méthode de calcul a été appliquée avec succès sur la rivière Jaune (section Xiaolangdi) qui présente un débit uniforme. D'autres chercheurs ont aussi utilisé cette méthode de calcul pour déterminer les anciens débits des cours d'eau et ont combiné leur analyse avec des indicateurs biophysiques observés sur le terrain (CHATTERS et HOOVER, 1986 ;GRIMMefa/., 1995 ;HEINE et HEINE, 2002 ;.…”

Section: Les Méthodes De Reconstitution Du Débit De Pointe Des Paléo-unclassified

Les différentes approches méthodologiques de reconstitution des paléo-inondations : une revue de la littérature

Saint-Laurent¹,

Lavoie²

2005

rseau

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Les deux dernières décennies en recherche scientifique se caractérisent par la multiplication des travaux concernant le réchauffement planétaire et les conséquences appréhendées de ce phénomène dans les divers milieux du globe. Ces travaux de recherche touchent différents champs disciplinaires dont la géomorphologie, l'hydrologie, l'écologie et bien d'autres. Dans le contexte des changements climatiques, on voit apparaître un intérêt grandissant pour l'étude des inondations anciennes ou des paléo-inondations. On tente de reconstituer la chronologie des inondations du passé notamment en regard des changements climatiques anciens ou subactuels (derniers siècles). Devant l'émergence de nombreux travaux dans ce domaine de la paléohydrologie, il nous est apparu intéressant d'examiner à travers une revue de la littérature scientifique les différentes approches méthodologiques utilisées dans l'étude des paléo-inondations. On s'attarde à décrire les principales méthodes et techniques employées dans la reconstitution des anciennes inondations, en particulier pour les environnements fluviaux (rivières, fleuves). On passe en revue les différents indicateurs biophysiques utilisés, notamment l'analyse des séquences stratigraphiques et sédimentaires, l'analyse des macrorestes, les méthodes de datation radiocarbone (14 C) et les techniques comme la thermoluminescence optique (TLO) et la dendrochronologie. Aussi, on présente les principaux modèles mathématiques utilisés dans la reconstitution des paléo-inondations, lesquels servent notamment à évaluer les variations niveaux/débits et la fréquence des inondations anciennes.

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Changing Late Holocene Flooding Frequencies on the Columbia River, Washington

Cited by 28 publications

References 14 publications

The role of plants and animals in isolation barriers at Hanford, Washington

The role of plants and animals in isolation barriers at Hanford, Washington

Determining the provenience of Kennewick Man skeletal remains through sedimentological analyses

Les différentes approches méthodologiques de reconstitution des paléo-inondations : une revue de la littérature

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