scholarly journals Maps showing total-field aeromagnetic anomalies and topography of the Cascade Mountain Range, northern California

1982 ◽  
Author(s):  
Richard W. Couch
Keyword(s):  
Mountain Range ◽  
Northern California ◽  
Total Field ◽  
Aeromagnetic Anomalies ◽  
Cascade Mountain ◽  
Cascade Mountain Range

scholarly journals Analysis of nifH Gene Pool Complexity in Soil and Litter at a Douglas Fir Forest Site in the Oregon Cascade Mountain Range

1999 ◽  
Vol 65 (2) ◽  
pp. 374-380 ◽  
Author(s):  
F. Widmer ◽  
B. T. Shaffer ◽  
L. A. Porteous ◽  
R. J. Seidler
Keyword(s):  
Gene Pool ◽  
Forest Litter ◽  
Plant Litter ◽  
Douglas Fir ◽  
Microbial Populations ◽  
Mountain Range ◽  
Nitrogen Fixing ◽  
Cascade Mountain ◽  
Pcr Products ◽  
Cascade Mountain Range

ABSTRACT Nitrogen-fixing microbial populations in a Douglas fir forest on the western slope of the Oregon Cascade Mountain Range were analyzed. The complexity of the nifH gene pool (nifH is the marker gene which encodes nitrogenase reductase) was assessed by performing nested PCR with bulk DNA extracted from plant litter and soil. The restriction fragment length polymorphisms (RFLPs) of PCR products obtained from litter were reproducibly different than the RFLPs of PCR products obtained from the underlying soil. The characteristic differences were found during the entire sampling period between May and September. RFLP analyses of cloned nifH PCR products also revealed characteristic patterns for each sample type. Among 42 nifH clones obtained from a forest litter library nine different RFLP patterns were found, and among 64 nifHclones obtained from forest soil libraries 13 different patterns were found. Only two of the patterns were found in both the litter and the soil, indicating that there were major differences between the nitrogen-fixing microbial populations. A sequence analysis of clones representing the 20 distinct patterns revealed that 19 of the patterns had a proteobacterial origin. All of the nifH sequences obtained from the Douglas fir forest litter localized in a distinct phylogenetic cluster characterized by the nifH sequences of members of the genera Rhizobium, Sinorhizobium, and Azospirillum. The nifH sequences obtained from soil were found in two additional clusters, one characterized by sequences of members of the genera Bradyrhizobium,Azorhizobium, Herbaspirillum, andThiobacillus and the other, represented by a singlenifH clone, located between the gram-positive bacteria and the cyanobacteria. Our results revealed the distinctness of the nitrogen-fixing microbial populations in litter and soil in a Douglas fir forest; the differences may be related to special requirements for degradation and mineralization processes in the plant litter.

scholarly journals Evaluation of Rootstocks on Harvest Metrics of ‘Pinot Noir clone 02A’ Wine Grapes in Maritime Western Washington

2018 ◽  
Vol 28 (6) ◽  
pp. 830-835 ◽  
Author(s):  
Michelle M. Moyer ◽  
Jaqueline King ◽  
Gary Moulton
Keyword(s):  
Puget Sound ◽  
Titratable Acidity ◽  
Pinot Noir ◽  
Soluble Solids ◽  
Mountain Range ◽  
Wine Grapes ◽  
Mount Vernon ◽  
Cascade Mountain ◽  
Western Washington ◽  
Final Harvest

The Puget Sound American Viticulture Area (AVA), located west of the Cascade Mountain Range in Washington State, is a large and uniquely situated area with diverse topography and mesoclimates. Given the young age of the AVA, little formal information exists on the appropriate rootstock–scion combination in wine grapes (Vitis vinifera) for the region. This project reports on a series of rootstock trials from 2003 to 2007, which evaluated the influence of ‘420A Millardet et de Grasset’, ‘3309 Couderc’, ‘101-14 Millardet et de Grasset’ (all Vitis hybrids), and a self-rooted control on basic harvest metrics of the wine grape scion ‘Pinot noir clone 02A’. At the warmer site in Everson, WA, rootstocks had no effect on final juice harvest metrics measured by soluble solids, titratable acidity (TA), and pH. At the cooler site in Mount Vernon, WA, the use of rootstocks did not always influence soluble solids or pH but did reduce final harvest TA, a desired effect for the region that is typified by low sugar–high TA wines. Even with a reduction in TA in some rootstock–scion combinations, overall, TA remained at the upper end or above the range typically desired for many wine styles.

Fatalities from Volcanic Activity

1985 ◽  
Vol 1 (S1) ◽  
pp. 433
Author(s):  
William H. Dice ◽  
James F. Bascom
Keyword(s):  
Federal Government ◽  
Natural Disaster ◽  
Volcanic Activity ◽  
Washington State ◽  
Contingency Planning ◽  
Mountain Range ◽  
Danger Zone ◽  
Cascade Mountain ◽  
Life Threatening ◽  
Ash Cloud

The eruption of Mount Saint Helens in the Cascade Mountain Range of Washington State on 18 May 1980 resulted in a life-threatening and economically disruptive natural disaster that required the mobilization of supportive agencies from the State and Federal government for control. Because of the potential for further eruptions, the mechanism of death for those persons exposed to the initial blast was examined to aid in contingency planning.Fatalities as a result of the eruption could be attributed to lack of understanding of the danger in the area of the mountain. Although several scientists were killed during the eruption, most were sight-seers who ignored the warning seismic activity and the precautionary blockade of the area. A few were outside of the well-publicized danger zone, but were caught in the rapidly moving mudslides or the ash cloud.

Tetracyclus hinziae (Bacillariophyta), a new species from the central Cascade Mountains (WA, USA)

Phytotaxa ◽  
2015 ◽  
Vol 205 (3) ◽  
pp. 197
Author(s):  
Ian Bishop ◽  
Sarah Spaulding
Keyword(s):  
New Species ◽  
National Park ◽  
Mountain Range ◽  
New Taxon ◽  
Extant Species ◽  
Mount Rainier ◽  
Cascade Mountain ◽  
Mount Rainier National Park ◽  
A New Species ◽  
Freshwater Diatom

Here we describe a new freshwater diatom species from the Cascade Mountain Range in Washington State, including observations of living cells and chloroplast structure. The species represents the fourth known extant species within the genus, as most species of Tetracyclus Ralfs are extinct. The new species can be distinguished from other Tetracyclus species and Diatoma mesodon Kützing by its lanceolate-elliptical shape, apiculate ends, small size, rimoportula placement, and distinct septa pattern. The distribution of the new taxon is currently catchments within the Mt. Baker-Snoqualmie National Forest and Mount Rainier National Park, and is found in greatest abundance in aerophilous, moss and liverwort habitats in first- and second-order streams.

scholarly journals Ground magnetic investigations of selected aeromagnetic anomalies in southern West Greenland

1979 ◽  
Vol 95 ◽  
pp. 63-66
Author(s):  
B.S Mielby ◽  
F Svendsen
Keyword(s):  
Field Work ◽  
Total Field ◽  
Aeromagnetic Anomalies ◽  
West Greenland ◽  
Ground Magnetic

Ground magnetic investigations were carried out during the summer of 1978 to elucidate some prominent aeromagnetic anomalies (Thorning, 1976, 1977). Four different areas were visited (Thorning, this report, fig. 23), additional reconnaissance work being carried out for Leif Thorning on the Taserssuaq granodiorite north of Godthåbsfjord (Thorning, this report). During the field work, total field magnetic profiles were obtained using a proton magnetometer (Geometrics G-816) and in situ susceptibilities were measured with an ABEM Kappameter KT-3.

Introduction to Cell Membranes at Molecular Resolution

1978 ◽  
Vol 36 (3) ◽  
pp. 497-502
Author(s):  
R.J. Barrnett
Keyword(s):  
Cell Membranes ◽  
International Federation ◽  
Mountain Range ◽  
Cellular Membranes ◽  
Short History ◽  
Biological Organization ◽  
Macromolecular Assemblies ◽  
The Past

This subject, is like observing the panorama of a mountain range, magnificent towering peaks, but it doesn't take much duration of observation to recognize that they are still in the process of formation. The mountains consist of approaches, materials and methods and the rocky substance of information has accumulated to such a degree that I find myself concentrating on the foothills in the foreground in order to keep up with the advance; the edifices behind form a wonderous, substantive background. It's a short history for such an accumulation and much of it has been moved by the members of the societies that make up this International Federation. My panel of speakers are here to provide what we hope is an interesting scientific fare, based on the fact that there is a continuum of biological organization from biochemical molecules through macromolecular assemblies and cellular membranes to the cell itself. Indeed, this fact explains the whole range of towering peaks that have emerged progressively during the past 25 years.

Changes of mercury concentrations in streamwater after a destructive wildfire (Camp Fire 2018) and a prescribed burning in northern California

2020 ◽  
Author(s):  
Alex Chow ◽  
Jackson Webster ◽  
Hunter Robinson ◽  
Robert rhew ◽  
Martin Tsz-Ki Tsui ◽  
...  
Keyword(s):  
Prescribed Burning ◽  
Northern California
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