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Articles 571 - 600 of 704

Full-Text Articles in Physical Sciences and Mathematics

Generalized Geologic Map For Land-Use Planning: Owen County, Kentucky, Daniel I. Carey, Cam Flanders Jan 2006

Generalized Geologic Map For Land-Use Planning: Owen County, Kentucky, Daniel I. Carey, Cam Flanders

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.


Generalized Geologic Map For Land-Use Planning: Trimble County, Kentucky, Daniel I. Carey, Bart Davidson Jan 2006

Generalized Geologic Map For Land-Use Planning: Trimble County, Kentucky, Daniel I. Carey, Bart Davidson

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.


Factors Influencing The Participation In Environmental Stewardship Programs: A Case Study Of The Agricultural And Forestry Sectors In Louisiana, Carrie Castille Mendoza Jan 2006

Factors Influencing The Participation In Environmental Stewardship Programs: A Case Study Of The Agricultural And Forestry Sectors In Louisiana, Carrie Castille Mendoza

LSU Doctoral Dissertations

Considerable research has been conducted to evaluate the adoption of agricultural best management practices and their overall impact on improving environmental quality. However, limited studies have been conducted to evaluate the behavioral factors that influence the adoption of these practices in the context of educational programs The goal of this study is to determine the factors that influence farmer conservation behavior that might lead to an increased probability of improving agriculture and forestry watersheds. A conceptual model was developed to identify the: 1) identify landowner participation in watershed conservation projects, and 2) determine the factors influencing agriculture and forestry landowners …


Changes In Summer Irrigated Crop Area And Water Use In Southeastern Turkey From 1993 To 2002: Implications For Current And Future Water Resources, Mutlu Ozdogan, Curtis E. Woodcock, Guido D. Salvucci, Hüseyin Demir Aug 2005

Changes In Summer Irrigated Crop Area And Water Use In Southeastern Turkey From 1993 To 2002: Implications For Current And Future Water Resources, Mutlu Ozdogan, Curtis E. Woodcock, Guido D. Salvucci, Hüseyin Demir

United States National Aeronautics and Space Administration: Publications

Changes in summer irrigated cropland acreage and related water use are estimated from satellite remote sensing and ancillary data in semi-arid Southeastern Turkey where traditionally dry agricultural lands are being rapidly transformed into irrigated fields with the help of water from the Euphrates-Tigris Rivers. An image classification methodology based on thresholding of Landsat NDVI images from the peak summer period reveals that the total area of summer irrigated crops has increased three-fold (from 35,000 ha to over 100,000) in the Harran Plain between 1993 and 2002. Coupled analysis of annual irrigated crop area from remote sensing and potential evapotranspiration based …


Potential Impacts Of Climate Change On Agricultural Land Use Suitability : Wheat, Dennis Van Gool, Luke Vernon Aug 2005

Potential Impacts Of Climate Change On Agricultural Land Use Suitability : Wheat, Dennis Van Gool, Luke Vernon

Resource management technical reports

This publication considers the impact of climate change on wheat crops. While a model was first used, it was only partially validated against real data, hence the model is now used as a decision support system that allows people with crop, land resource and climate knowledge to determine potential impacts of climate change on crop growth and production in Western Australia.


Slides: Forestry On The Yakama Reservation: The Balancing Of Natural Resources Management, Philip Rigdon Jun 2005

Slides: Forestry On The Yakama Reservation: The Balancing Of Natural Resources Management, Philip Rigdon

Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19)

Presenter: Philip Rigdon, Yakama Nation, Toppenish, WA

64 slides


Slides: Hard Times On The Colorado River: Tightening Water Supplies, Jerry Zimmerman Jun 2005

Slides: Hard Times On The Colorado River: Tightening Water Supplies, Jerry Zimmerman

Hard Times on the Colorado River: Drought, Growth and the Future of the Compact (Summer Conference, June 8-10)

Presenter: Jerry Zimmerman, Colorado River Board of California.

36 slides.


Grass Patch-Salmon Gums Area : Catchment Appraisal 2005, Angela Alderman Jun 2005

Grass Patch-Salmon Gums Area : Catchment Appraisal 2005, Angela Alderman

Resource management technical reports

Rapid catchment appraisal to assess the condition of, and future risks to, agricultural and natural resources within the Grass Patch-Salmon Gums area in Western Australia.


Cache County, Utah Resource Assessment, Utah Association Of Conservation Districts, Utah Department Of Agriculture And Foods, Natural Resources Conservation Service Jan 2005

Cache County, Utah Resource Assessment, Utah Association Of Conservation Districts, Utah Department Of Agriculture And Foods, Natural Resources Conservation Service

All U.S. Government Documents (Utah Regional Depository)

This resource assessment is designed to gather and display information specific to Cache County, Utah. This report will highlight the natural and social resources present in the county, detail specific concerns, and be used to aid in resource planning and target conservation assistance needs. This document is dynamic and will be updated as additional information is available through a multi-agency partnership effort. The general observations and summaries are listed first, followed by the specific resource inventories.


Generalized Geologic Map For Land-Use Planning: Ohio County, Kentucky, E. Glynn Beck, David A. Williams, Daniel I. Carey Jan 2005

Generalized Geologic Map For Land-Use Planning: Ohio County, Kentucky, E. Glynn Beck, David A. Williams, Daniel I. Carey

Map and Chart--KGS

This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.


Wagin-Woodanilling (Zone 5) : Catchment Appraisal 2005, K Ohlsen, T Schulz, T W. Mathwin, Gina Pemberton, Henry Brockman, J Firth, Mitchell Davies, Heather M. Percy Jan 2005

Wagin-Woodanilling (Zone 5) : Catchment Appraisal 2005, K Ohlsen, T Schulz, T W. Mathwin, Gina Pemberton, Henry Brockman, J Firth, Mitchell Davies, Heather M. Percy

Resource management technical reports

The aim of this report is to assess the current extent of salinity and other natural resource degradation issues and provide landholders with the best current management options to address natural resource management issues and enhance sustainable agricultural production.


Lower Yilgarn Catchment Appraisal 2003, D G. Cummins Aug 2004

Lower Yilgarn Catchment Appraisal 2003, D G. Cummins

Resource management technical reports

This report summarises current information on risks and impacts to agricultural production and natural resources within the Lower Yilgarn Catchment. It also identifies suitable options to manage such risks. The report has been divided into three sections : the natural resource base, the catchment risks and management options and impacts. Rapid Catchment Appraisal aims to document salinity risk and management options by addressing all threats to the natural resource base.


Groundwater Management: Lessons From Colorado V. Kansas, David W. Robbins Jun 2004

Groundwater Management: Lessons From Colorado V. Kansas, David W. Robbins

Groundwater in the West (Summer Conference, June 16-18)

11 pages.


Groundwater Resources Of The Lower Colorado Region, Tim Henley Jun 2004

Groundwater Resources Of The Lower Colorado Region, Tim Henley

Groundwater in the West (Summer Conference, June 16-18)

15 pages.


Slides: Overview Of Ground-Water Quality And Related Management Issues, Mike Wireman Jun 2004

Slides: Overview Of Ground-Water Quality And Related Management Issues, Mike Wireman

Groundwater in the West (Summer Conference, June 16-18)

Presenter: Mike Wireman, Regional Groundwater Expert, EPA Region 8.

32 slides.


Keynote Address: Breathing Lessons, J. Russell Mason Feb 2004

Keynote Address: Breathing Lessons, J. Russell Mason

United States Department of Agriculture Wildlife Services: Staff Publications

Current issues in wildlife damage management and the protection of human health and safety arise from the successful application of traditional methods by state and federal managers. The paradox is that these same methods are increasingly controversial. Within this constraint, management strategies may be difficult to implement. In California, for example, protecting state-threatened foxes could mean killing federally protected golden eagles. In Utah, restoring Gunnison sage grouse may require the sustained lethal suppression of predator populations unless or until habitat can be restored. The obvious fact is that these are unpopular choices, and special interest groups frequently oppose selective intervention, …


Subsurface Acidity, Mike Bolland, Chris Gazey, Amanda Miller, Dave Gartner, Julie-Anne Roche Feb 2004

Subsurface Acidity, Mike Bolland, Chris Gazey, Amanda Miller, Dave Gartner, Julie-Anne Roche

Bulletins 4000 -

Productive agriculture increases the concentration of hydrogen ions in soil, which acidifies the soil.

Aluminium is a component of many soil constituents, including clays and oxides, and is also present on the surfaces of soil organic matter. As the concentration of hydrogen ions in soil increases, soil pH decreases, and aluminium starts to dissolve from the soil constituents, increasing the concentration of aluminium ions in soil solution.

As the concentration of aluminium ions in the solution increases, the aluminium in the soil solution becomes increasingly toxic to plant roots, reducing root growth. The smaller amounts of plant roots explore a …


Frankland-Gordon Area : Catchment Appraisal 2003, Tim D. Overheu, Natural Heritage Trust (Australia) Jan 2004

Frankland-Gordon Area : Catchment Appraisal 2003, Tim D. Overheu, Natural Heritage Trust (Australia)

Resource management technical reports

Rapid catchment appraisal to assess the condition of, and future risks to, agricultural and natural resources within the Frankland Gordon area in Western Australia.


Swine Waste Demonstration And Training Project, C. V. Maxwell, K. Vandevender, K. P. Coffey, P. A. Moore, I. Chaubey, D. R. Smith Dec 2003

Swine Waste Demonstration And Training Project, C. V. Maxwell, K. Vandevender, K. P. Coffey, P. A. Moore, I. Chaubey, D. R. Smith

Arkansas Water Resources Center Technical Reports

No abstract provided.


Moore River : Catchment Appraisal 2003, A Alderman, M Clarke, Natural Heritage Trust (Australia), Moore River Catchment Support Team (Wa) Oct 2003

Moore River : Catchment Appraisal 2003, A Alderman, M Clarke, Natural Heritage Trust (Australia), Moore River Catchment Support Team (Wa)

Resource management technical reports

Using the Rapid Catchment Appraisal process, this report summarises current information for the Moore River catchment, Western Australia. The headwaters of the Moore River commence in Perenjori, Carnamah and Dalwallinu shires and drain southwards through Moora.


Integrated Weed Management Plan For The Lower Las Vegas Wash, Elizabeth Bickmore Sep 2003

Integrated Weed Management Plan For The Lower Las Vegas Wash, Elizabeth Bickmore

Publications (WR)

The Las Vegas Wash (Wash) is the primary drainage for the metropolitan Las Vegas Valley, eventually finding its way into the Colorado River watershed system. Pursuant to the recommendations of the Water Quality Citizens Advisory Committee, the Las Vegas Wash Coordination Committee (LVWCC) was formed in 1998 to develop a comprehensive plan for the long-term stabilization and management of the Wash. Consisting of representatives from 28 government agencies, businesses, environmental groups and citizens, the LVWCC formulated the Las Vegas Wash Comprehensive Adaptive Management Plan (CAMP) and designated the Southern Nevada Water Authority (SNWA) as the lead agency for the implementation …


Blackwood Catchment : Beaufort Zone (Zone 4) : Catchment Appraisal 2002, Henry Brockman, Blackwood Rapid Catchment Appraisal Team (Wa ), Natural Heritage Trust (Australia) Sep 2003

Blackwood Catchment : Beaufort Zone (Zone 4) : Catchment Appraisal 2002, Henry Brockman, Blackwood Rapid Catchment Appraisal Team (Wa ), Natural Heritage Trust (Australia)

Resource management technical reports

Using the Rapid Catchment Appraisal process, this report summarises current information for the Beaufort zone, located in the mid to southern part of the Blackwood basin, including parts of the shires of Kojonup, West Arthur, Woodanilling, Katanning, Broomehill, Wagin and Boyup Brook, Western Australia. Assesses the condition of, and future risks to agricultural and natural resources, provides information for reducing those risks and identifies the most suitable options to manage the risk.


Red Lasers Are Ineffective For Dispersing Deer At Night, Kurt C. Vercauteren, Scott E. Hygnstrom, Michael J. Pipas, Paul B. Fioranelli, Scott J. Werner, Bradley F. Blackwell Jul 2003

Red Lasers Are Ineffective For Dispersing Deer At Night, Kurt C. Vercauteren, Scott E. Hygnstrom, Michael J. Pipas, Paul B. Fioranelli, Scott J. Werner, Bradley F. Blackwell

United States Department of Agriculture Wildlife Services: Staff Publications

Populations of white-tailed deer (Odocoileus virginianus) and the number of deer-human conflicts have increased in recent years, emphasizing the need for efficient and inexpensive methods to reduce site-specific deer damage. Recent research using laser technology to disperse a variety of bird species has yielded promising results, prompting wildlife professionals and the public to question whether lasers could play a role in reducing damage and conflict with mammals, primarily deer. We evaluated 2 red lasers (63-650 nm) to determine their effectiveness as devices to frighten deer. No differences occurred in flight response between lasers or between the control and …


Behavioral Evaluation Of The Psychological Welfare And Environmental Requirements Of Agricultural Research Animals: Theory, Measurement, Ethics, And Practical Implications, Lesley A. King Jul 2003

Behavioral Evaluation Of The Psychological Welfare And Environmental Requirements Of Agricultural Research Animals: Theory, Measurement, Ethics, And Practical Implications, Lesley A. King

Experimentation Collection

The welfare of agricultural research animals relies not only on measures of good health but also on the presence of positive emotional states and the absence of aversive or unpleasant subjective states such as fear, frustration, or association with pain. Although subjective states are not inherently observable, their interaction with motivational states can be measured through assessment of motivated behavior, which indicates the priority animals place on obtaining or avoiding specific environmental stimuli and thus allows conclusions regarding the impact of housing, husbandry, and experimental procedures on animal welfare. Preference tests and consumer demand models demonstrate that animal choices are …


Slides: Managing Risks Associated With Climate-Related Water Supply Variability, Bonnie G. Colby Jun 2003

Slides: Managing Risks Associated With Climate-Related Water Supply Variability, Bonnie G. Colby

Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management (Summer Conference, June 11-13)

Presenter: Dr. Bonnie G. Colby, Professor of Agricultural and Resource Economics, University of Arizona

5 page "Outline" and 38 slides


Climate Change And The Rio Grande: Throwing Gasoline On A Fire, Denise Fort Jun 2003

Climate Change And The Rio Grande: Throwing Gasoline On A Fire, Denise Fort

Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management (Summer Conference, June 11-13)

4 pages.

"Summary"

"Professor Denise Fort, University of New Mexico School of Law"


Improved Drought Planning For Arizona, Katharine Jacobs, Barbara Morehouse Jun 2003

Improved Drought Planning For Arizona, Katharine Jacobs, Barbara Morehouse

Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management (Summer Conference, June 11-13)

Presenter: Barbara Morehouse

7 pages and 22 slides

Includes bibliographical references

"Katharine Jacobs is currently the Special Assistant for Policy and Planning, Arizona Department of Water Resources."

"Barbara Morehouse is Associate Research Scientist at the University of Arizona’s Institute for the Study of Planet Earth. She manages the Climate Assessment for the Southwest (CLIMAS) project, which is supported by the National Oceanic and Atmospheric Administration’s Office of Global Programs."


Conference Guidebook: Water, Climate And Uncertainty: An Introduction To The Issues, Language, Literature And The Conference Materials, Doug Kenney Jun 2003

Conference Guidebook: Water, Climate And Uncertainty: An Introduction To The Issues, Language, Literature And The Conference Materials, Doug Kenney

Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management (Summer Conference, June 11-13)

20 pages.

"Prepared as a Supplement to: Water, Climate and Uncertainty: Implications for Western Water Law, Policy, and Management, Natural Resources Law Center, University of Colorado School of Law, June 11-13, 2003"

"Doug Kenney, Ph.D."

Includes bibliographical references

Contents:

Part I: What Are Climate Researchers Saying About Western Water? A Guide for Non-Scientists

Part II: What Should Climate Researchers Know About the Realm of Western Water Law, Policy and Management?

Part III: Where to Find Additional Information


Field Testing Of Abrasion Resistant Carbides, Kevin C. Orme May 2003

Field Testing Of Abrasion Resistant Carbides, Kevin C. Orme

Undergraduate Honors Capstone Projects

Chromium, tungsten, titanium, and vanadium carbides were investigated to determine relative cost of operation for each in an agricultural environment. For use on a ripper plow, these carbides were field tested in two different soil types; one soil having a matrix of gravel and cobblestones, and the other consisting of hard dirt and large underground rocks. Each alloy was applied to a high carbon plow point using an arc welding process. Along with the welded points, cast chromium carbide was tested. The results are given in price per acre and not solely longevity of the point. It was concluded that …


Paired Site Sampling For Soil Carbon Estimation – Western Australia, Edward Arnold Griffin, W H. Verboom, D G. Allen Feb 2003

Paired Site Sampling For Soil Carbon Estimation – Western Australia, Edward Arnold Griffin, W H. Verboom, D G. Allen

Natural resources research reports

This report describes a detailed paired site study at nine locations in the drier parts of south–western Australia representative of areas most recently cleared for agriculture. The pairing was of uncleared, short-term cleared and long-term cleared sites. The study provided samples for modelling soil organic carbon fluxes by CSIRO Land and Water. Analysis and interpretation of results from the samples collected and detailed soil morphology descriptions provide comprehensive documentation of the soil carbon and other soil parameters. This provides a basis for better understanding factors influencing soil carbon dynamics in soils in Western Australia, particularly in areas with sandy topsoils. …