Ecoregions are regions of relative homogeneity with respect to specific
ecosystem variables (Bailey 1976; Omernik 1995). There has been an increasing
awareness that effective management of environmental resources must be undertaken
with an ecosystem perspective (Omernik, 1995). Ecoregions serve as a spatial
framework for assessing, managing, and monitoring ecosystems that...
The EPA’s Western Ecology Division (WED) had been accumulating geographic information system (GIS) data files for up to 20 years. There was no index or catalog for these files; locating data became more difficult over time. More that 4 Tb of data existed on numerous disk volumes in hundreds of...
Ecoregions are regions of relative homogeneity with respect to specific
ecosystem variables (Bailey 1976; Omernik 1995). There has been an increasing
awareness that effective management of environmental resources must be undertaken
with an ecosystem perspective (Omernik, 1995). Ecoregions serve as a spatial
framework for assessing, managing, and monitoring ecosystems that...
With our present pressing need to clean up our
Nation'a waterways there has developed a shift from water
resource development to water quality management. This
shift was manifested in 1972 when Congress created Areawide
Water Quality Management in Section 208 of the Federal
Water Pollution Control Act Amendments. Section 208...
Instream flow protection in western prior appropriation states is a relatively new phenomenon.
Integrating instream flow protection measures with the older water law has been accomplished with varying
degrees of success. Idaho relies on appropriation of unappropriated water by the Idaho Water Resource Board
for protection of instream flows. Idaho's...
This case study of the Spokane Valley-Rathdrum Prairie aquifer, deals with the evolution of water quality protection. A number of institutional efforts on multijurisdictional levels
have established a piecemeal approach for this aquifer's protection. Federal legislation includes designation as a 'Sole Source' aquifer under sec. 1424(e) of SDWA, and 1...
Since the Wolf, Yoffe, and Giordano 2003 Basins at Risk study, examining human interactions with transboundary water resources through a lens of conflict and cooperation has been a dominant paradigm. The Basins at Risk (BAR) method involves categorizing events on a scale from most conflictive (e.g. war or extensive casualties)...
Disposal of solid wastes in sanitary landfills presents potential problems of ground water contamination. The most conman contaminants are leachate and dissolved gas. Oregon has implemented a ground water quality monitoring program at selected landfills. Objectives are to protect the state1 s ground water resource and complement regulatory and enforcement...
The concept of ecosystem services broadens perspectives on nature to include not only intrinsic value but also the utilitarian value it provides to society. Viewing nature through this lens informs our understanding of how particular ecological processes benefit different actors. In this research, I examine how water utilities in the...
Physical, chemical and bacterial water quality parameters of
the upper Wallowa River were sampled periodically between July 2,
1978 and June 9, 1979 at nine stream and lake sampling sites. Water
upstream from Wallowa Lake was typified by low nutrient concentrations
( generally below detectable limits except for nitrates), low....