scholarly journals Preliminary assessment of shallow groundwater chemistry near Goodell Creek, North Cascades National Park, Washington

2019 ◽  
Author(s):  
Rich W. Sheibley ◽  
James R. Foreman
Keyword(s):  
National Park ◽  
Shallow Groundwater ◽  
Groundwater Chemistry ◽  
North Cascades ◽  
Preliminary Assessment

Evolution of groundwater chemistry on shallow aquifer of Yogyakarta City urban area

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Doni Prakasa Eka Putra
Keyword(s):  
Shallow Groundwater ◽  
Unconfined Aquifer ◽  
Groundwater Chemistry ◽  
Shallow Aquifer ◽  
Nitrate Content ◽  
New Business ◽  
Urban Settlements ◽  
A Minor ◽  
New Settlements ◽  
Yogyakarta City

Since 1980s, accelerated by urbanization, Yogyakarta City was shifting to many directions defined by main road networks and service centres. Urbanization has transformed rural dwellings to become urban settlements and generated urban agglomeration area. Until now, new business centres, education centres and tourism centres are growing hand in hand with new settlements (formal or informal) without proper provision of water supply and sanitation system. This condition increase the possibility of groundwater contamination from urban wastewater and a change of major chemistry of groundwater as shallow unconfined aquifer is lying under Yogyakarta City. To prove the evolution of groundwater chemistry, old data taken on 1980s were comparing with the recent groundwater chemistry data. The evaluation shows that nitrate content of groundwater in 1980s was a minor anion, but nowadays become a major anion, especially in the shallow groundwater in the centre of Yogyakarta City. This evidence shows that there is an evolution of groundwater chemistry in shallow groundwater below Yogyakarta City due to contamination from un-proper on-site sanitation system. Keywords: Urbanization, Yogyakarta city, rural dwellings, settlements, agglomeration, contamination, groundwater

scholarly journals Assessing threats to shallow groundwater quality from soil pollutants in Glasgow, UK: development of a new screening tool

2017 ◽  
Vol 108 (2-3) ◽  
pp. 173-190 ◽  
Author(s):  
F. M. Fordyce ◽  
B. É. Ó Dochartaigh ◽  
H. C. Bonsor ◽  
E. L. Ander ◽  
M. T. Graham ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Soil Sample ◽  
Screening Tool ◽  
Shallow Groundwater ◽  
Groundwater Chemistry ◽  
Potential Threat ◽  
Quaternary Deposit ◽  
Metal Concentrations ◽  
High Soil ◽  
Very High

ABSTRACTA new GIS-based screening tool to assess threats to shallow groundwater quality has been trialled in Glasgow, UK. The GRoundwater And Soil Pollutants (GRASP) tool is based on a British Standard method for assessing the threat from potential leaching of metal pollutants in unsaturated soil/superficial materials to shallow groundwater, using data on soil and Quaternary deposit properties, climate and depth to groundwater. GRASP breaks new ground by also incorporating a new Glasgow-wide soil chemistry dataset. GRASP considers eight metals, including chromium, lead and nickel at 1622 soil sample locations. The final output is a map to aid urban management, which highlights areas where shallow groundwater quality may be at risk from current and future surface pollutants. The tool indicated that 13% of soil sample sites in Glasgow present a very high potential threat to groundwater quality, due largely to shallow groundwater depths and high soil metal concentrations. Initial attempts to validate GRASP revealed partial spatial coincidence between the GRASP threat ranks (low, moderate, high and very high) and groundwater chemistry, with statistical correlation between areas of high soil and groundwater metal concentrations for both Cr and Cu (r2>0.152; P<0.05). Validation was hampered by a lack of, and inconsistency in, existing groundwater chemistry data. To address this, standardised subsurface data collection networks have been trialled recently in Glasgow. It is recommended that, once available, new groundwater depth and chemistry information from these networks is used to validate the GRASP model further.

scholarly journals Preliminary Assessment of Volcanic and Hydrothermal Hazards in Yellowstone National Park and Vicinity

2007 ◽  
Author(s):  
Robert L. Christiansen ◽  
Jacob B. Lowenstern ◽  
Robert B. Smith ◽  
Henry Heasler ◽  
Lisa A. Morgan ◽  
...  
Keyword(s):  
Yellowstone National Park ◽  
National Park ◽  
Preliminary Assessment

scholarly journals Valuation of Cultural and Natural Resources in North Cascades National Park

SAGE Open ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 215824401452891 ◽  
Author(s):  
Robert W. Turner ◽  
Blake Willmarth
Keyword(s):  
Natural Resources ◽  
National Park ◽  
North Cascades

Physical and chemical properties of the Sulphur Mountain thermal springs, Banff National Park, and implications for endangered snails

2002 ◽  
Vol 39 (9) ◽  
pp. 1349-1361 ◽  
Author(s):  
Stephen E Grasby ◽  
Dwayne A.W Lepitzki
Keyword(s):  
Seasonal Variability ◽  
National Park ◽  
Temperature Drop ◽  
Chemical Properties ◽  
Shallow Groundwater ◽  
Thermal Springs ◽  
Population Fluctuations ◽  
Banff National Park ◽  
Seasonal Flow ◽  
Spring Snowmelt

Nine thermal springs, in three groups, occur along the flank of Sulphur Mountain in Banff National Park. The principal recharge zone is suggested to be above 2000 m elevation on Mount Rundle, circulation depths are estimated to be 3.2 ± 0.6 km, and discharge is focused along the Sulphur Mountain Thrust. Springs show constant temperature and total dissolved solids load throughout the winter, whereas both drop in association with spring snowmelt. The degree and timing of temperature drops are a function of elevation, with the highest springs showing the earliest and most significant temperature drop. The highest elevation springs also show the greatest seasonal variability in water chemistry. Unusual seasonal flow stoppages of these springs are related to extreme low precipitation years. The biogeochemistry of the thermal springs and population fluctuations of the endemic and endangered Banff springs snail (Physella johnsoni) are strongly related to seasonal variability in flow rates. Changes in redox conditions associated with an influx of shallow groundwater during spring snowmelt negatively impact the microbial community that forms a principal food supply for the snail.

Forest types of the North Cascades National Park Service Complex

1987 ◽  
Vol 65 (7) ◽  
pp. 1520-1530 ◽  
Author(s):  
James K. Agee ◽  
Jane Kertis
Keyword(s):  
Ponderosa Pine ◽  
National Park ◽  
Forest Cover ◽  
National Park Service ◽  
Silver Fir ◽  
North Cascades ◽  
Cover Type ◽  
The North ◽  
Park Service ◽  
Forest Cover Types

A forest cover type classification was developed for the North Cascades National Park Service Complex in north central Washington, U.S.A., based on 425 reconnaissance-level plots. Detrended correspondence analysis (DECORANA) was used to ordinate the data. Temperature and available moisture were identified as primary environmental gradients. Two-way indicator species analysis (TWINSPAN) was used to classify the data, resulting in eight forest cover types: ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii), subalpine fir (Abies lasiocarpa), whitebark pine – subalpine larch (Pinus albicaulis – Larix lyallii), mountain hemlock (Tsuga mertensiana), Pacific silver fir (Abies amabilis), western hemlock (Tsuga heterophylla), and hardwood forest. The coniferous forest cover types, with the exception of ponderosa pine, were defined to have open and closed canopy components; each cover type includes a variety of plant associations. The cover types were integrated into a geographic information system used to create a cover type map that was 85% accurate. The forest cover types of the park complex are unique not so much for within-community diversity as for the close juxtaposition of cover types with interior and coastal climatic influences.

scholarly journals Whitebark Pine in the Northern Cascades: Tracking the Effects of Blister Rust on Population Health in North Cascades National Park Service Complex and Mount Rainier National Park

2018 ◽  
Author(s):  
Regina Rochefort ◽  
Shay Howlin ◽  
Lacey Jeroue ◽  
John Boetsch ◽  
Lise Grace
Keyword(s):  
National Park ◽  
National Park Service ◽  
Mortality Rates ◽  
Whitebark Pine ◽  
North Cascades ◽  
Blister Rust ◽  
Mountain Pine ◽  
Mount Rainier ◽  
Mount Rainier National Park ◽  
Park Service

Whitebark pine (Pinus albicaulis Engelm.) is a key component of subalpine and alpine ecosystems in the northern Cascades. The species survival is threatened by white pine blister rust, mountain pine beetles, fire exclusion, and climate change. Trees were monitored in permanent plots in two national parks three times between 2004 and 2016. The proportion of trees showing signs of blister rust infection increased in North Cascades National Park Service Complex from 32% in 2004 to 51% in 2016 and from 18% to 38% in Mount Rainier National Park. Mortality increased from 7% to 21% in North Cascades National Park Service Complex and 38% to 44% in Mount Rainier National Park. Annual mortality rates were calculated for three time periods: 2004-2009, 2009-2015/2016, and 2004-2015/2016. Mortality rates, annualized across the entire study period, were 1.47% in Mount Rainier National Park and 2.27% in North Cascades National Park Service Complex; these rates decreased between the first time period and the second, which could reflect blister rust resistance. Signs of mountain pine beetle were rare and limited to a few trees in individual plots. Although reproductive trees were found in most stands, densities were low and regeneration was dominated by subalpine fir.

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