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Page 3562, results 89026 - 89050

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Global warming, sea-level rise, and coastal marsh survival
Donald R. Cahoon
1997, Fact Sheet 091-97
Coastal wetlands are among the most productive ecosystems in the world. These wetlands at the land-ocean margin provide many direct benefits to humans, including habitat for commercially important fisheries and wildlife; storm protection; improved water quality through sediment, nutrient, and pollution removal; recreation; and aesthetic values. These valuable ecosystems will...
Effects of climate change on southeastern forests
Paul A. Harcombe
1997, Fact Sheet 093-97
Forests of the coastal plain region of the southeastern United States are among the most productive in North America. Because they form the basis of a large timber and wood products industry, these forests are of considerable economic importance. Also, the forests are rich in plant and animal species. Because...
Using remote sensing to monitor global change
Elijah W. Ramsey III
1997, Fact Sheet 096-97
To properly respond to natural and human-induced stresses to wetlands, resource managers must consider their functions and values. Remote sensing is an important tool for monitoring wetland responses to changes in the hydrologic regime and water quality caused by global climate change and sea-level rise....
Global change and submerged aquatic vegetation research
H.A. Neckles, G.R. Guntenspergen, W.M. Rizzo, T.C. Michot
1997, Fact Sheet 090-97
Communities of submerged aquatic vegetation (SAY) are important components of many freshwater, brackish, and marine aquatic ecosystems. They prevent erosion by baffling the impacts of waves, especially from storms. These aquatic plant communities remove nutrients and other pollutants from river and runoff inputs to coastal areas, preventing their entry into surrounding waters. They...
Predicting coastal flooding and wetland loss
Thomas W. Doyle
1997, Fact Sheet 094-97
The southeastern coastal region encompasses vast areas of wetland habitat important to wildlife and other economically valuable natural resources. Located on the interface between sea and land, these wetland habitats are affected by both sea-level rise and hurricanes, and possibly by hydroperiod associated with regional climatic shifts. Increased sea level...
A manual for a laboratory information management system (LIMS) for light stable isotopes
Tyler B. Coplen
1997, Open-File Report 97-812
The reliability and accuracy of isotopic data can be improved by utilizing database software to (i) store information about samples, (ii) store the results of mass spectrometric isotope-ratio analyses of samples, (iii) calculate analytical results using standardized algorithms stored in a database, (iv) normalize stable isotopic data to international scales...
Data from Devils Hole Core DH-11
Jurate Maciunas Landwehr, T.B. Coplen, K.R. Ludwig, I.J. Winograd, A.C. Riggs
1997, Open-File Report 97-792
This report presents the stable isotope values measured in Devils Hole Core DH-11 and interpolated ages at the depth the samples were taken, as analyzed in a recent publication by Winograd and others (1997)....
History of Fire and Fire Impacts at Tonto National Monument, Arizona
Barbara G. Phillips
1997, Technical Report 59
A study of the history of fire and fire impacts on desert plants of Tonto National Monument was made in 1990-1991 by the author. Four major fires and several minor ones have occurred on the monument since 1942, all lightning caused. Twenty photo stations set up after the 1964 Schultz...
Modeling hurricane effects on mangrove ecosystems
Thomas W. Doyle
1997, Fact Sheet 095-97
Mangrove ecosystems are at their most northern limit along the coastline of Florida and in isolated areas of the gulf coast in Louisiana and Texas. Mangroves are marine-based forests that have adapted to colonize and persist in salty intertidal waters. Three species of mangrove trees are common to the United...
Pesticides in surface water of the Mid-Atlantic region
Matthew J. Ferrari, Scott W. Ator, Joel D. Blomquist, Joel E. Dysart
1997, Water-Resources Investigations Report 97-4280
Water-quality data from 463 surface-water sites were compiled and analyzed to document the occurrence and distribution of pesticides in surface water of the Mid-Atlantic region as part of the Mid-Atlantic Integrated Assessment program of the U.S. Environmental Protection Agency. Those data collected by the U.S. Geological Survey from October 1973...
Volcanic Air Pollution - A Hazard in Hawai'i
Jeff Sutton, Tamar Elias, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 169-97
Noxious sulfur dioxide gas and other pollutants emitted from Kilauea Volcano on the Island of Hawai'i react with oxygen and atmospheric moisture to produce volcanic smog (vog) and acid rain. Vog poses a health hazard by aggravating preexisting respiratory ailments, and acid rain damages crops and can leach lead into...
Characterization of springflow in the north coast limestone of Puerto Rico using physical, chemical, and stable isotopic methods
Jesús Rodríguez-Martínez
1997, Water-Resources Investigations Report 97-4122
The carbonate sequence of middle Tertiary age of the north coast of Puerto Rico is characterized by the presence of numerous springs in the coastal areas. In order to advance the understanding of the hydrologic role of the springs in the north coast limestone aquifer system of Puerto Rico, a...