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University of Nebraska - Lincoln

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Articles 1441 - 1470 of 1647

Full-Text Articles in Water Resource Management

Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes Dec 1989

Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Water Current, Volume 21, September 1989 Sep 1989

Water Current, Volume 21, September 1989

Water Current Newsletter

United Nations Association, Nebraska Division Hears Roger Gold's "World's Water Problems"
Groundwater--One Word or Two?
Sandhills Water Resources and Irrigation Observed on Annual Nebraska Tour
Survey Reveals Recreational Activities of Nebraskans
Farm Conservation and Water Protection Act of 1989
New Staff at Water Center
Colorado State Receives $9 Million for Somalian Water Management Project
EPA Announces Third Method to Determine Drinking Water Coliforms
NRD History and Mission Explained in Booklet Now Available to Public
White House Conference on Water Resources Proposed by NWA to Discuss Water Issues
Acid Rain International Problem; Midwest's Too
Deadline for Grant Proposals to USGS Announced …


Water Current, Volume 21, July 1989 Jul 1989

Water Current, Volume 21, July 1989

Water Current Newsletter

Calumus Dam and Sandhills Ranches on Annual Tour
Congress Passes Bill for Centers' Reauthorization
Aquifer Preservation Goal of Council
Water Policy Forum to be October 3
Research Funds Available in 10-State Consortium
Survey Shows Nebraska in Lower Ranking
US Geological Survey Celebrates 100th Anniversary
Clean Lakes Program Grant to Lower Elkhorn Natural Resources District
Nebraska Rainwater Basins Targeted for Plan
Concluding and New Research Funded
DEC Holds Two Special Protection Area Hearings


Water Current, Volume 21, April 1989 Apr 1989

Water Current, Volume 21, April 1989

Water Current Newsletter

US Water Institutes/Centers Celebrate 25th Anniversary
United Kingdom Geophysicist Now Head of UNL Geololgy Department
Future Depends on Water Quality and Quantity
NItrate Area Map "May Be Out in June"
Large Savings with Nitrogen Best Management Practices
Sandhills Voices Heard at Conference
Papio-Missouri River NRD Receives Progress Award
Pioneer Irrigation Award Goes to Former NPPD Administrator
Research Hydrologist is Kremer Lecturer
Public-Private Sectors Join in National Celebration
Nebraska Unicameral Considers Water Legislation Bills in First Unicameral Session


Leaf Optical And Indirect Lai Measurements In Wheat And Alfalfa At Maciv: Agmet Progress Report 89-4, E. A. Walter-Shea, B. L. Blad Jan 1989

Leaf Optical And Indirect Lai Measurements In Wheat And Alfalfa At Maciv: Agmet Progress Report 89-4, E. A. Walter-Shea, B. L. Blad

School of Natural Resources: Documents and Reviews

Interpretation of remotely sensed vegetative surfaces requires an understanding of the interaction of radiation with the various components of vegetation. Leaves are the most important component. Thus it is important to know the optical properties of individual leaves as well as the amount and distribution of leaves making up the vegetative cover. The objectives of our study were 1) to characterize the reflectance from and transmittance through adaxial and abaxial surfaces of individual wheat and alfalfa leaves and 2) to compare the traditional, time-consuming, destructive method of estimating LAI (direct method) to a relatively quick, indirect estimate of LAI in …


Water Current, Volume 20, October 1988 Oct 1988

Water Current, Volume 20, October 1988

Water Current Newsletter

Bonneville Power Administrator Compares Missouri Basin Reservoirs with Pacific Northwest's
Nebraska Ranks Third in Water Use in U.S.
Spalding Appointed Associate Director of UNL Water Center
Nebraska Water Conference Council Holds Fall Meeting
Water Research Proposals are Due December 1
Answers to Water Quality Questions Closer with Burlington Northern Foundation $ Million Grant
Former Nebraskans Address Northwest Water Tour Group
Drought Responses Discussed at Forum


Water Current, Volume 20, August 1988 Aug 1988

Water Current, Volume 20, August 1988

Water Current Newsletter

Pacific Northwest Destination of Annual Water Resources Fall Tour
Roger Gold to Direct UNL Water Center
We've Moved! Water Center on East Campus
EPA Releases Booklet on Grondwater Protection
Research Review: Recent Projects Completed by UNL Scientists
Water Quality Initiative Teams Gear Up for Nebraska Water Quality Priority Initiative
Conservation Called for on Annual Water Resources Tour


Water Current, Volume 20, May 1988 May 1988

Water Current, Volume 20, May 1988

Water Current Newsletter

Major Changes in Water Center During Past Nine Years
Water Law Expert Says Policies May Cause Pollution
Director's Report, A Glance Back
On the Other End of the Phone
Sheffield Announces Tours for July and September
Annual Awards Presented at Banquet
Water Resources Program Will Study Impact of Water Quality Legislation
Change Called for at Nebraska Water Conference
Nitrate Exposure Impacts Prenatal Mortality in Beef Cattle


Water Current, Volume 20, March 1988 Mar 1988

Water Current, Volume 20, March 1988

Water Current Newsletter

Changing World's Impacts on State's Water Issues Explored
Natural Resources Development in Depressed Areas Goals of CSD
Center to Search for Funds
Sheffield Receives Award
Nebraska's Available Water Supply "Same as Pioneer Days" - Dreeszen
Extension Water Group Broadens Base
Nebraska's Water Research Reviewed at "Update"
Nebraska Water Resources Center Projects for 1988
Health, Legal and Management Aspects of Water Examined


Drought Management: The Role Of Near- Real Time Weather Data, Donald A. Wilhite, Kenneth G. Hubbard Jan 1988

Drought Management: The Role Of Near- Real Time Weather Data, Donald A. Wilhite, Kenneth G. Hubbard

National Drought Mitigation Center: Faculty Publications

The ability to collect weather data in near-real time has improved because of technological advances, enabling weather data users to obtain more weather data over wider areas, and in a more timely fashion. The number of near-real time climate networks is increasing as new applications are found for climate data. More than fifteen states in the United States have established automated weather station networks. This paper presents an overview of recent developments in automated weather data collection in the United States and gives a detailed description of the network in Nebraska.

Near-real time weather data has many applications in agricultural …


Cropstatus--A Computer Program To Assess The Effects Of Seasonal Weather Changes On Nebraska's Agriculture, R. E. Neild, Donald A. Wilhite, K. G. Hubbard Jan 1988

Cropstatus--A Computer Program To Assess The Effects Of Seasonal Weather Changes On Nebraska's Agriculture, R. E. Neild, Donald A. Wilhite, K. G. Hubbard

National Drought Mitigation Center: Faculty Publications

CROPSTATUS is a series of programs residing in Nebraska's AGNET system using daily weather data to assess seasonal changes in crops, livestock, and other agricultural conditions. Assessments are based on parameters developed from accumulations of current daily temperature and precipitation data collected from a network of synoptic, climate, and automated micrometeorological stations in Nebraska in comparison with daily normals. The daily normals were derived from monthly summaries using multiple regression models to compute daily values as a function of Julian day numbers. Crop phenology models based on growing degree days were used to monitor and forecast the progress of different …


Improving Projected Potential Evapotranspiration Estimates Using National Weather Service Forecasts, Steven J. Meyer, Kenneth G. Hubbard, Donald A. Wilhite Jan 1988

Improving Projected Potential Evapotranspiration Estimates Using National Weather Service Forecasts, Steven J. Meyer, Kenneth G. Hubbard, Donald A. Wilhite

National Drought Mitigation Center: Faculty Publications

In a recent survey conducted by the University of Nebraska's Center for Agricultural Meteorology and Climatology of Agricultural Network (AGNET) users, the results of potential evapotranspiration (ETp) projections (calculated using the Blaney-Criddle approach, which employs "normal" climatic data to project ETp estimates up to three days into the future) were labeled "unrealistic." To improve these projections, National Weather Service (NWS) forecast variables were used as input into the Blaney-Criddle and Penman equations. ETp projections calculated according to the Penman equation, with data measured by automated weather stations as input, were assumed to represent the "best" …


The Nebraska Agricultural Climate Situation Committee, R. E. Neild, K. G. Hubbard, Donald A. Wilhite Jan 1988

The Nebraska Agricultural Climate Situation Committee, R. E. Neild, K. G. Hubbard, Donald A. Wilhite

National Drought Mitigation Center: Faculty Publications

The Nebraska Agricultural Climate Situation Committee consisting of an interdisciplinary group of extension specialists provides up-to-date information and advice on seasonal changes in crop/ weather conditions. The committee meets each Monday during the growing season to review:

1. Maps and tabular data developed by a computer program CIS /Crop Weather Information System/ that is linked to a network of weather stations and computer terminals in county agent offices.

2. Insect, plant disease and weed surveys.

3. Weekly weather and crop reports from the State/Federal System.

4. Weather outlooks from the National Weather Service.

5. Climate probabilities.

Situation reports and advisories …


Fox Squirrel Interaction With Electrical Transformers, J. Christopher Hamilton Oct 1987

Fox Squirrel Interaction With Electrical Transformers, J. Christopher Hamilton

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Fox Squirrel Interaction With Electrical Transformers, J. Christipher Hamilton Oct 1987

Fox Squirrel Interaction With Electrical Transformers, J. Christipher Hamilton

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Water Current, Volume 19, August 1987 Aug 1987

Water Current, Volume 19, August 1987

Water Current Newsletter

Research Report: Water-Use Efficiency Improved by Measuring ET
Nebraska Water Resources Center Program FY 1987
Water Extension Group Has Session on Water Quality
NAWID Elects Powers Chair
Bills Held Over by the 90th Nebraska Legislature, First Session
Water Policy Forum Examines Hazardous Waste Disposal Siting
Water Management in South-Central, Southwest Nebraska Theme of Summer Nebraska Irrigation Tour


A Field Test Of Habitat Evaluation Procedures For Creek Chub (Semotilus Atromaculatus) And Channel Catfish (Ictalurus Punctatus), Donald W. Zaroban Aug 1987

A Field Test Of Habitat Evaluation Procedures For Creek Chub (Semotilus Atromaculatus) And Channel Catfish (Ictalurus Punctatus), Donald W. Zaroban

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


A Preliminary Study Of The Hydrogeology Of The Dakota Formation In Douglas, Sarpy And Washington Counties, Eastern Nebraska, Thomas Mark O'Connor Aug 1987

A Preliminary Study Of The Hydrogeology Of The Dakota Formation In Douglas, Sarpy And Washington Counties, Eastern Nebraska, Thomas Mark O'Connor

School of Natural Resources: Dissertations, Theses, and Student Research

This study provides preliminary information on the hydrogeology of the Dakota Formation within a 1,000 square-mile area in eastern Nebraska. Isopach maps of the Dakota Formation and individual sand and gravel beds were constructed using a computer contouring program. Hydraulic conductivity values for water-bearing sand beds in the Dakota were estimated using the equation for calculating the specific capacity of wells and results from a grain-size analysis. Concentrations of major dissolved species were determined for samples collected from twenty five wells. The Dakota Formation is characterized by an increase in thickkness and an increase in percentage of clay versus sand …


Effect Of Shelterbelts On Growth, Yield, And Quality Of Alfalfa (Medicago Sativa L.), Thomas G. Hans May 1987

Effect Of Shelterbelts On Growth, Yield, And Quality Of Alfalfa (Medicago Sativa L.), Thomas G. Hans

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Prairie Dog Population Growth: Relationships To Population Density, Habitat, And Livestock Grazing Management, Kelly A. Cable May 1987

Prairie Dog Population Growth: Relationships To Population Density, Habitat, And Livestock Grazing Management, Kelly A. Cable

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Effects Of Sediment Addition On The Drift Of Aquatic Macroinvertebrates In Nine Mile Creek, Nebraska, Laurence Angle May 1987

Effects Of Sediment Addition On The Drift Of Aquatic Macroinvertebrates In Nine Mile Creek, Nebraska, Laurence Angle

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Water Current, Volume 19, Spring 1987 Apr 1987

Water Current, Volume 19, Spring 1987

Water Current Newsletter

Nebraskans Tour Arizona Irrigation Sites
Awards Presented at Conference
Director's Report
Workshop Held on Water Research Needs
Texas Geologist CSD Director
Group Sees World's Largest Desalting Plant


A Test Of Habitat Evaluation Models Using Avian Densities, Jeremy B. Cable Mar 1987

A Test Of Habitat Evaluation Models Using Avian Densities, Jeremy B. Cable

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Water Current, Volume 18, Fall-Winter 1986-97 Oct 1986

Water Current, Volume 18, Fall-Winter 1986-97

Water Current Newsletter

Wildlife Habitat, Water Demands to be Discussed at Seminar
Irrigation Tour to Arizona to See London Bridge, Bureau's Projects
Bleed Receives 1986 YWCA Tribute to Women Award
Research Review: Polishing of Biologically Denitrified Groundwater Supplies to Meet Drinking Standards
Good Potential for Coordination at UNL
Platte River Report Receives AWRA Award
High Plains Aquifer R and D Authorized for Schools, Producers in 1986 Act
Remote Sensing Reveals Changes in Wildlife Habitat


Effect Of Pre-Burn Artificial Litter And Prescribed Burning On Smooth Brome (Bromus Inermis Leyss), Patricia R. Boehner Aug 1986

Effect Of Pre-Burn Artificial Litter And Prescribed Burning On Smooth Brome (Bromus Inermis Leyss), Patricia R. Boehner

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Water Current, Volume 18, Summer 1986 Jul 1986

Water Current, Volume 18, Summer 1986

Water Current Newsletter

Water Quality Leads List of Concerns at Water Workshop
UNL Co-Sponsors International Symposium on Drought
Federal vs. State Water Policy Debated at UCOWR Meeting
Research Review: Water Policy-Making by Nebraska Courts
NU Water Policy Forum to Look at Nitrates


Improving Nebraska's Near-Real Time Weather-Based Products Through User Interaction, Steven J. Meyer Jul 1986

Improving Nebraska's Near-Real Time Weather-Based Products Through User Interaction, Steven J. Meyer

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


The Population Biology Of Oak Middle Creek Structure 58-B After An Experimental Stocking With Adult Fish: A Three Year Evaluation, Donn A. Rodekohr Jun 1986

The Population Biology Of Oak Middle Creek Structure 58-B After An Experimental Stocking With Adult Fish: A Three Year Evaluation, Donn A. Rodekohr

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Water Current, Volume 18, Spring 1986 Apr 1986

Water Current, Volume 18, Spring 1986

Water Current Newsletter

Research Could Help Revegetate Sand Hills
New Research Projects Funded
Amendment to HR 3906 Would Alter States' Matching Funds
Water Policy Committee to Examine a New Quality Issue
Research Review: Thermal-Infrared Remote Sensing of Near Surface Moisture in Deep Sandy Soils
Proceedings Available for Symposium on Dryland Agriculture
Chemigation Proceedings Available


Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim Mar 1986

Environmental And Physiological Effects On Water Use Of Cereal Crops, Joon Kim

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.