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Articles 1 - 30 of 27175
Full-Text Articles in Earth Sciences
Metric System Vs. Inch-Pound Units
Metric System Vs. Inch-Pound Units
Conservation and Survey Division
No abstract provided.
Generalized Soil Map Of Nebraska
Generalized Soil Map Of Nebraska
Conservation and Survey Division
No abstract provided.
Distribution And Thickness Of Glacial Till In Nebraska.
Distribution And Thickness Of Glacial Till In Nebraska.
Conservation and Survey Division
No abstract provided.
Nebraska Map Of Counties, Conservation Survey Division
Nebraska Map Of Counties, Conservation Survey Division
Conservation and Survey Division
No abstract provided.
Dissolved Solids Sampling Sites And Zones Of Concentration
Dissolved Solids Sampling Sites And Zones Of Concentration
Conservation and Survey Division
No abstract provided.
Statewide Precipitation And Discharge Of Platte River Above Ashland, Bryce B. Pease
Statewide Precipitation And Discharge Of Platte River Above Ashland, Bryce B. Pease
Conservation and Survey Division
No abstract provided.
Holdrege: Nebraska's State Soil
Holdrege: Nebraska's State Soil
Conservation and Survey Division
No abstract provided.
Branched Oak Lake State Recreation Area
Branched Oak Lake State Recreation Area
Conservation and Survey Division
No abstract provided.
Nebraska Groundwater In Storage, Conservation Survey Division
Nebraska Groundwater In Storage, Conservation Survey Division
Conservation and Survey Division
No abstract provided.
Groundwater Regions In Nebraska
Groundwater Regions In Nebraska
Conservation and Survey Division
No abstract provided.
Generalized Classification Of Economic Minerals
Generalized Classification Of Economic Minerals
Conservation and Survey Division
No abstract provided.
Report Of The Nebraska Conservation And Soil Survey, G. E. Condra
Report Of The Nebraska Conservation And Soil Survey, G. E. Condra
Conservation and Survey Division
No abstract provided.
Topographic Regions Of Nebraska, G. E. Condra
Topographic Regions Of Nebraska, G. E. Condra
Conservation and Survey Division
No abstract provided.
Precambrian Rock Descriptions From Deep Wells In Nebraska, E. Liedecke
Precambrian Rock Descriptions From Deep Wells In Nebraska, E. Liedecke
Conservation and Survey Division
No abstract provided.
Nebraska Natural Resources District Boundaries, Nebraska Natural Resources Commission
Nebraska Natural Resources District Boundaries, Nebraska Natural Resources Commission
Conservation and Survey Division
No abstract provided.
Nebraska Natural Resource District Boundaries
Nebraska Natural Resource District Boundaries
Conservation and Survey Division
No abstract provided.
Transmissivity Of The Principal Aquifer In Nebraska
Transmissivity Of The Principal Aquifer In Nebraska
Conservation and Survey Division
No abstract provided.
Areas In Nebraska Of Subirrigated Vegetation, John Elder
Areas In Nebraska Of Subirrigated Vegetation, John Elder
Conservation and Survey Division
No abstract provided.
Development Of A Land Cover Characteristics Data Base For The Conterminous U.S., Thomas R. Loveland, James W. Merchant, Donald O. Ohlen, Jesslyn F. Brown
Development Of A Land Cover Characteristics Data Base For The Conterminous U.S., Thomas R. Loveland, James W. Merchant, Donald O. Ohlen, Jesslyn F. Brown
Conservation and Survey Division
No abstract provided.
Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan
Corn And Soybean Response To Wastewater-Recycled Phosphorus Fertilizers, Shane Ylagan
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
The ability to recycle phosphorus (P) from wastewaters could provide a sustainable, continuous source of P that might also help protect surface water quality from P enrichment. The mineral struvite (MgNH4PO4·6H2O) is an understudied material that can be created from Pcontaining wastewater and has been shown to have agricultural fertilizer value. The objective of this study was to evaluate the effects of electrochemically precipitated struvite (ECST), chemically precipitated struvite (Crystal Green; CG), diammonium phosphate (DAP), monoammonium phosphate (MAP), rock phosphate (RP), and triple super phosphate (TSP) on corn (Zea mays) and soybean (Glycine max) response in a 79-day greenhouse ...
Comparing Uganda's Indigenous Soil Classification System With World Reference Base And Usda Soil Taxonomy To Predict Soil Productivity, Stewart Kyebogola, C. Lee Burras, Bradley A. Miller, Onesimus Semalulu, Russell S. Yost, Moses M. Tenywa, Andrew W. Lenssen, Prossy Kyomuhendo, Christopher Smith, Charles K. Luswata, Mwanjalolo J. Gilbert Majaliwa, Lance Goettsch, Carol J. Pierce Colfer, Robert E. Mazur
Comparing Uganda's Indigenous Soil Classification System With World Reference Base And Usda Soil Taxonomy To Predict Soil Productivity, Stewart Kyebogola, C. Lee Burras, Bradley A. Miller, Onesimus Semalulu, Russell S. Yost, Moses M. Tenywa, Andrew W. Lenssen, Prossy Kyomuhendo, Christopher Smith, Charles K. Luswata, Mwanjalolo J. Gilbert Majaliwa, Lance Goettsch, Carol J. Pierce Colfer, Robert E. Mazur
Agronomy Publications
This study examines three soil classification systems - Buganda, World Reference Base, and US Soil Taxonomy - in order to evaluate their relative strengths and feasibility for making linkages between them. Nine field sites and 16 pedons were considered across the soil landscapes of the Buganda catena. Each identified field pedon diagnostic horizons and characteristics were described and their soils analyzed using standard pedological techniques and measurements. To document the indigenous use of the Buganda classification system, interviews and discussions were held with farmer groups and local extension specialists. Using this local expertise, five local soil units were identified. We also identified ...
Boron In The Pariette Wetlands, Uinta Basin, Ut, Palak Vasudeva
Boron In The Pariette Wetlands, Uinta Basin, Ut, Palak Vasudeva
All Graduate Theses and Dissertations
Boron is a naturally occurring mineral in shale and coal beds formed in marine environments, as found in the Uinta Basin. Mining activity and the application of excess irrigation water on agricultural lands in the Pariette watershed lead to mobilization of B via surface run off. Water quality monitoring records from 2006- 2009 reported violations of Utah B standard for irrigation water 43-100% of the time, for water flowing through the Pariette Wetlands. This study aims to determine B distribution in abiotic (water, sediments) and biotic samples (macroinvertebrates, aquatic vegetation, fish, bird eggs), and to establish correlations between B concentrations ...
Soil Health Assessment On Arid Rangeland Soils Impacted By Oil And Gas Exploration, Development, And Extraction, Justin Allred
Soil Health Assessment On Arid Rangeland Soils Impacted By Oil And Gas Exploration, Development, And Extraction, Justin Allred
All Graduate Theses and Dissertations
Oil and gas well pad reclamation in arid environments such as in the Uinta Basin of Utah, presents unique challenges, including remote locations, limited water, and elevated soil salinity and sodicity. Successfully reclaimed Plugged and Abandoned (P&A) well pads should resemble the surrounding rangeland once fully reclaimed. Revegetation of native species is the primary indicator of successful reclamation, but the lack of water makes it challenging to re-seed native plants, while trying to prevent the encroachment of invasive plant species such as Bromus tectorum (cheatgrass), Salsola tragus (Russian thistle), and Halogeton glomeratus (halogeton). Could successful reclamation be reflective of ...
Paleoenvironmental Reconstruction Of Quaternary Saltville, Virginia, Using Ostracode Autecology, Austin Gause
Paleoenvironmental Reconstruction Of Quaternary Saltville, Virginia, Using Ostracode Autecology, Austin Gause
Electronic Theses and Dissertations
The Saltville valley in southwestern Virginia is home to Quaternary localities containing paleontological and archaeological remains. Historically the valley has been mined for salt and the small lakes, ponds and springs along the valley floor have a brackish signature. A preliminary report on the site’s ostracode fauna suggested that the site’s water was not always saline. This study analyzed modern and Quaternary ostracodes to understand the valley’s hydrologic and chemical evolution. Sediments contained primarily freshwater species, including the environmentally sensitive Candona crogmaniana. The presence of Pelocypris tuberculatum and a new Fabaeformiscandona species throughout a vertical section spanning ...
Effect Of Plant Derived Tannins On Nitrogen And Carbon Cycling In Pasture Soils, Kathryn A. Slebodnik
Effect Of Plant Derived Tannins On Nitrogen And Carbon Cycling In Pasture Soils, Kathryn A. Slebodnik
All Graduate Theses and Dissertations
Pasture-finished beef has become increasingly popular, but nitrogen losses from these pastures are of concern. Legumes containing condensed tannins such as birdsfoot trefoil (Lotus corniculatus) and sainfoin (Onobrychis viciifolia) may serve as environmentally and economically viable alternative forages in pasture finishing systems while reducing soil nitrogen loss. The goal of this project was to understand how tannin type and concentration affects soil nitrogen cycling both in the lab and the field. This thesis: 1) compared the physical, chemical, and biological characteristics of soil samples obtained from grazed grass and tannin and non-tannin containing legume pastures, 2) assessed how feces from ...
Does Updating Natural Hazard Maps To Reflect Best Practices Increase Viewer Comprehension Of Risk?, Carson C. Macpherson-Krutsky, Brittany D. Brand, Michael K. Lindell
Does Updating Natural Hazard Maps To Reflect Best Practices Increase Viewer Comprehension Of Risk?, Carson C. Macpherson-Krutsky, Brittany D. Brand, Michael K. Lindell
Geosciences Faculty Publications and Presentations
In this study, we examine whether updating an interactive hazard map using recommendations from the literature improves user map comprehension. Analyses of experimental data collected from 75 university students revealed that map comprehension scores were not significantly better for those who viewed a “best practices” map compared to those who viewed an existing version. This may be because the existing map was itself better than most other interactive maps. Additionally, we found map comprehension levels to have significant positive relationships with objective tests, but not self-reported measures of spatial ability. Moreover, self-reported spatial ability had statistically significant, but only moderately ...
Contribution Of Vegetative Reproducton Of Leymus Chinensis And Carex Duriuscula To Population Persistence During Restoration Succession After Flood Disturbance In The Songnen Plains, China, Haiyan Li, Yunfei Yang
Contribution Of Vegetative Reproducton Of Leymus Chinensis And Carex Duriuscula To Population Persistence During Restoration Succession After Flood Disturbance In The Songnen Plains, China, Haiyan Li, Yunfei Yang
International Grassland Congress Proceedings
No abstract provided.
Root System Ecology Of Shrubs In Qilian Mountains Alpine Rhododendron Shrubland, Wenxia Cao, Degang Zhang, Fuzeng Hong
Root System Ecology Of Shrubs In Qilian Mountains Alpine Rhododendron Shrubland, Wenxia Cao, Degang Zhang, Fuzeng Hong
International Grassland Congress Proceedings
No abstract provided.