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Surface Erosion Control on Roads in Granitic Soils
The impact of forest road construction on water quality and fish habitat is a serious problem for engineers, hydrologists, and foresters. Control of surface erosion is an important and...

A Methodology of Assessing Nonpoint Source Pollution from Agricultural Watersheds
Appraisals of water quality impacts induced by applying watershed management practices are difficult due to many factors. Lack of existing research data base, the diffusive characteristics...

Modeling Off-Site Impacts
The off-site impacts of a flood water control program were evaluated by applying the SWRRB (Simulation of Water Resources on Rural Basins) model to a treated basin, primarily agricultural,...

A Giardia Source Investigation in a National Forest Municipal Supply Watershed
For nearly 100 years, the City of Missoula, Montana, obtained most of its municipal water from a surface water supply, Rattlesnake Creek. The Rattlesnake watershed lies within the Lolo...

Prediction of Nutrient and Heavy Metal Transport Capacities of Suspended Sediment in the Southwestern United States
SEDCON, a computerized prediction technique (using forest type and geology as inputs) has been developed to estimate the impacts of land management practices on physical and chemical characteristics...

Cyanide Heap Leaching Problems at Elk City, Idaho
A cyanide heap leaching operation for gold recovery was started in 1983 above the water intake for the community of Elk City in north central Idaho which turned into a problem during the...

Acid Deposition in the Wind River Mountains
National attention has been focused on the discovery of acidified lakes in the Adirondack Mountains of New York and elsewhere in New England. It is commonly believed that the West, in...

The Role of Multiple Level Hydrologic Analysis in Watershed Management?A Case Study in Trinidad
An accurate estimation of peak flood flows and its correlation with existing and future land use are basic requirements for the scientific management of Watersheds. An accurate estimation...

Streamflow Generation from Subalpine Forests
Much of the hydrologic modelling done in the subalpine forest of the central Rockies is based on the Subalpine Water Balance Model. This paper reports on plot studies on the Fraser Experimental...

Simulation of Airborne Snow Water Equivalent Measurement Errors Made over a Forest Environment
The Office of Hydrology of the National Weather Service has developed and maintains an operational Airborne Gamma Radiation Snow Survey Program in the upper Midwest (Peck, et al. , 1980)....

Snow Management Practices for Increasing Soil Water Reserves in Frozen Prairie Soils
It is demonstrated that stubble management practices can be used to increase snowcover accumulations in the Canadian Prairies. However, the potential for significant increasing soil water...

Snow Management at Ski Areas: Hydrologic Effects
Several types of snow management are practiced at downhill ski areas. Each of these activities has a variety of hydrologic consequences. The extent to which these management practices...

Interrelating Infiltration Measurements
Field measurements of infiltration rates are frequently used to index environmental conditions, soil hydrology, and the potential for rainstorm response. However, the variety of methods...

Characterization of Variable Soil-Water Properties
Hydraulic conductivity, water retention, soil bulk density, and clay content were analyzed on undisturbed soil cores obtained from different depths at sixteen locations in a 24 acre watershed....

Prediction of Soil Water Properties for Hydrologic Modeling
Water flow in soils can be characterized for many boundary and initial conditions by solving governing differential equations. Thus, a physically consistent means of quantifying water...

Source Area Variability During Peakflow: A Function of Antecedent Soil Moisture Content
An attempt was made to identify the source areas contributing to peakflow and to quantify the relative importance of each source area under various antecedent soil moisture (ASM) conditions....

A Systematic Evaluation of Hillslope Subsurface Flow: The Effects of Slope Angle and Soil Parameter Variation
A two-dimensional finite element variably saturated flow model is used in conjunction with an automatic mesh generating scheme to simulate hillslope subsurface flow. Slopes from 2% to...

Forestation in Northeastern Brazil and Its Influence on Quantity and Quality of Runoff
A study is being conducted in Northeastern Brazil, at Cruzeta, in the Semi-Arid Tropic, to estimate runoff and soil displacement caused by precipitation and the influence of vegetation...

Closed Negotiations?Out with the Poker Players
The paper describes the closed negotiation process employed by one owner/client, the U. S. Army Corps of Engineers, in procuring firm, fixed price design service contracts. Although not...

Silent Negotiations: Listen with Your Eyes
More than sixty per cent of all communication is non-verbal. The impact of body language during negotiations can be either positive or negative, depending on the negotiator's...

 

 

 

 

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