U.S. Drought Monitor, October 28, 2014, 2014 National Drought Mitigation Center
U.S. Drought Monitor, October 28, 2014, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for October 28, 2014 (10/28/14) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.
Redox Chemistry In The Phosphorus Biogeochemical Cycle, 2014 University of South Florida
Redox Chemistry In The Phosphorus Biogeochemical Cycle, Matthew A. Pasek, Jacqueline M. Sampson, Zachary Atlas
School of Geosciences Faculty and Staff Publications
The element phosphorus (P) controls growth in many ecosystems as the limiting nutrient, where it is broadly considered to reside as pentavalent P in phosphate minerals and organic esters. Exceptions to pentavalent P include phosphine—PH3—a trace atmospheric gas, and phosphite and hypophosphite, P anions that have been detected recently in lightning strikes, eutrophic lakes, geothermal springs, and termite hindguts. Reduced oxidation state P compounds include the phosphonates, characterized by C−P bonds, which bear up to 25% of total organic dissolved phosphorus. Reduced P compounds have been considered to be rare; however, the microbial ability to use reduced P …
Collaborative Research: Timing And Structure Of The Last Glacial Maximum And Termination In Southern Peru: Implications For The Role Of The Tropics In Climate Change, 2014 Principal Investigator; University of Maine, Orono
Collaborative Research: Timing And Structure Of The Last Glacial Maximum And Termination In Southern Peru: Implications For The Role Of The Tropics In Climate Change, Brenda L. Hall
University of Maine Office of Research Administration: Grant Reports
The role of the tropics in climate change has important implications for understanding both orbital-scale and abrupt climate variations. Yet our ability to assess tropical behavior during major climate events, such as the last glacial maximum (LGM), is limited by poor spatial coverage and insufficient control on sample ages. This project will address this problem by developing well-dated records of glacial fluctuations from the LGM through the termination and late-glacial period at Nevados Coropuna and Allinccapac in southern Peru and use these data in numerical simulations of glacier mass balance and local climate. These sites allow an examination of glacier …
Imls Place Grant: Press Release 2, 2014 University of New Hampshire
Imls Place Grant: Press Release 2, Place Project Group
PLACE Project
Press release dated October 25, 2014, describing the PLACE (Position-based Location Archive Coordinate Explorer) project that is funded by the Institute for Museum and Library Services. The University of New Hampshire (UNH) library partnered with the UNH Earth Systems Research Center to develop a geospatial interface that is searchable by geospatial coordinates.
Sent to the Geoportal Web page (Patrick Florence).
Eocene-Oligocene Latitudinal Climate Gradients In North America Inferred From Stable Isotope Ratios In Perissodactyl Tooth Enamel, 2014 Utah Valley University
Eocene-Oligocene Latitudinal Climate Gradients In North America Inferred From Stable Isotope Ratios In Perissodactyl Tooth Enamel, Alessandro Zanazzi, Emily Judd, Andrew Fletcher, Harold Bryant, Matthew J. Kohn
Geosciences Faculty Publications and Presentations
The Eocene-Oligocene transition (~ 34 Ma) was one of the most pronounced episodes of climate change of the Cenozoic. In order to investigate this episode of global climate cooling in North America, we analyzed the carbon and oxygen stable isotope composition of the carbonate component of 19 perissodactyl (horse and rhino) tooth enamel samples from the Eocene-Oligocene rocks of the Cypress Hills Formation (southwestern Saskatchewan, Canada); we then compared the results with previously published data from the US Great Plains (Nebraska, South Dakota, and Wyoming).
Average (± 1σ) perissodactyl enamel δ13C values (vs. V-PDB) in the Eocene (-8.8 …
Groundwater Controls On Physical And Chemical Processes In Streamside Wetlands And Headwater Streams In The Kenai Peninsula, Alaska, 2014 University of South Florida
Groundwater Controls On Physical And Chemical Processes In Streamside Wetlands And Headwater Streams In The Kenai Peninsula, Alaska, Michael Kroh Callahan
USF Tampa Graduate Theses and Dissertations
For this dissertation I studied groundwater and surface water interactions in the Kenai Lowlands, Alaska. In particular, I examine two important aspects of groundwater and surface water interactions: 1) Groundwater's influence on surface-water temperature; and 2) Groundwater's role in forming hydrologic flow paths that can connect uplands to streamside wetlands and streams. Chapter 2 investigates the controls on stream temperature in salmon-bearing headwater streams in two common hydrogeologic settings: 1) drainage-ways, which are low-gradient streams that flow through broad valleys; and 2) discharge-slopes, which are high gradient streams that flow through narrow valleys. The results from chapter 2 showed significant …
Inner-Shelf Circulation And Sediment Dynamics On A Series Of Shoreface-Connected Ridges Offshore Of Fire Island, Ny, 2014 US Geological Survey
Inner-Shelf Circulation And Sediment Dynamics On A Series Of Shoreface-Connected Ridges Offshore Of Fire Island, Ny, John Warner, Jeffrey List, William Schwab, George Voulgaris, Brandy Armstrong, Nicole Marshall
George Voulgaris
Locations along the inner-continental shelf offshore of Fire Island, NY, are characterized by a series of shoreface-connected ridges (SFCRs). These sand ridges have approximate dimensions of 10 km in length, 3 km spacing, and up to ∼8 m ridge to trough relief and are oriented obliquely at approximately 30° clockwise from the coastline. Stability analysis from previous studies explains how sand ridges such as these could be formed and maintained by storm-driven flows directed alongshore with a key maintenance mechanism of offshore deflected flows over ridge crests and onshore in the troughs. We examine these processes both with a limited …
Kentucky Forage Spokesperson Contest, 2014 University of Kentucky
Kentucky Forage Spokesperson Contest, Kentucky Forage And Grassland Council
Kentucky Grazing Conference
No abstract provided.
Can I Afford To Spray For Weeds?, 2014 Dow AgroScience LLC
Can I Afford To Spray For Weeds?, Scott Flynn
Kentucky Grazing Conference
A common question among managers of grazing operations is “At what level of weed pressure does it become economical to apply herbicides on pastures?” Unfortunately there isn’t just one answer to this question as production goals and practices differ between operations and even within an operation over time. Regardless, the real question being ask is if weed control will increase profit per acre.
Grazing Options For Fall And Winter, 2014 University of Illinois
Grazing Options For Fall And Winter, Edward N. Ballard
Kentucky Grazing Conference
Feed costs represent the major cost in most livestock production systems. A recently completed analysis of 225 Standardized Performance Analysis (SPA) Beef Cow Records on herds in Illinois and Iowa showed that feed cost was the overriding factor determining profitability, explaining over 57 percent of the herd-to-herd variation.
Summer Grazing Options, 2014 University of Kentucky
Summer Grazing Options, S. Ray Smith, Krista Lea
Kentucky Grazing Conference
During the last 15 years there have been several new forage species that have emerged as useful in grazing systems and many new varieties have been released of traditional species. There are many sources of information on summer grazing options. We especially encourage you to read the publication written by Dr. Garry Lacefield and colleagues, “Extending Grazing and Reducing Stored Feed Needs” (AGR-199, www.uky.edu/Ag/Forage/agr199.pdf). I have used information from this publication and other publications from the University of Kentucky Forage Website (www.uky.edu/Ag/Forage) in writing this article.
Technical Service Provider: What Is It And Why Is It Important To You?, 2014 University of Kentucky
Technical Service Provider: What Is It And Why Is It Important To You?, Bill Payne
Kentucky Grazing Conference
Progressive graziers and forage managers are continually looking to improve their operations’ productivity. The opportunity exists to have a Grazing Management Plan developed for your operation at little or no cost to you. By contacting your county NRCS office, you can apply to have this plan developed by a Technical Service Provider, an independent professional certified by NRCS.
Forage Legumes: Their Importance And Management In Profitable Livestock Systems, 2014 University of Kentucky
Forage Legumes: Their Importance And Management In Profitable Livestock Systems, Ben M. Goff
Kentucky Grazing Conference
The landscape of most Kentucky operations is heavily dominated by the utilization of cool-season grasses as the primary source of forage for livestock. However, legumes species, such alfalfa and red or white clovers are an essential component to a complete forage-livestock system. Relative to grasses alone, incorporating legumes into a mixture has the benefits of improving the nutritive value of the available forage in the field, extending the grazing season by increasing the yield of forage during the early summer months, and providing a more economical source of N compared to commercial fertilizers. This paper will briefly describe each of …
Maximizing Stocker Gains On Pastures, 2014 University of Kentucky
Maximizing Stocker Gains On Pastures, Jeff Lehmkuhler
Kentucky Grazing Conference
Stocker enterprises by definition utilize pasture forages to add weight to light weight feeder cattle. These operations add value to calves by assimilating small groups of calves and combining them into larger uniform packages. Stocker operators also enhance quality through livestock husbandry practices that “upgrade” feeders which could include castrating bulls, dehorning, improving immunity and other attributes. In an effort to optimize profit margins, stocker operators must manage feeders to ensure high rates of gain while finding a balance in stocking rates that provide adequate gains per acre.
Grazing Method: Tool Or Toolbox?, 2014 University of Kentucky
Grazing Method: Tool Or Toolbox?, Garry D. Lacefield
Kentucky Grazing Conference
This conference makes the 15th consecutive year we have devoted a full day to Grazing. Kentucky is a great state for grazing animals since we have a relatively long pasture season, can grow many forage grasses and legumes and a long tradition of producing quality animal products from quality pasture. We have tremendous potential to improve our overall grazing efficiency and the discussion throughout the day will address many of the practical strategies for improvements.
Foreword And Kfgc Award Winners [2014], 2014 University of Kentucky
Foreword And Kfgc Award Winners [2014], Garry D. Lacefield, Christi L. Forsythe
Kentucky Grazing Conference
No abstract provided.
Public School Science Education And Geographically-Specific Environmental Sustainability Issues: Implications For Social Work Education, 2014 Western Kentucky University
Public School Science Education And Geographically-Specific Environmental Sustainability Issues: Implications For Social Work Education, Amanda Gallion
Mahurin Honors College Capstone Experience/Thesis Projects
The focus of this project was to examine the educational practices of Kentucky-based public school teachers (grades 4th-8th) related to their efforts to incorporate sustainability into the science classroom and specifically related to the teachers’ focus or lack of focus on karst landscape. The major themes that were analyzed were how educators include this content into their classroom material and how this impacts their students in the area of environmental sustainability. The themes analyzed were: environmental sustainability as a lifestyle choice; education about environmental sustainability, the nexus of family, school, and community; the importance of geographical context in regards to …
Ecogeomorphic Feedbacks And Flood Loss Of Riparian Tree Seedlings In Meandering Channel Experiments, 2014 State University of New York
Ecogeomorphic Feedbacks And Flood Loss Of Riparian Tree Seedlings In Meandering Channel Experiments, Li Kui, John C. Stella, Anne Lightbody, Andrew C. Wilcox
Geosciences Faculty Publications
During floods, fluvial forces interact with riparian plants to influence evolution of river morphology and floodplain plant community development. Understanding of these interactions, however, is constrained by insufficient precision and control of drivers in field settings, and insufficient realism in laboratory studies. We completed a novel set of flume experiments using woody seedlings planted on a sandbar within an outdoor meandering stream channel. We quantified effects on local sedimentation and seedling loss to scour and burial across realistic ranges of woody plant morphologies (Populus versus Tamarix species), densities (240 plants m-2 versus 24 m-2), and sediment …
Dendrochronological Analysis Of The Mcglumphy Homestead, 2014 The College of Wooster
Dendrochronological Analysis Of The Mcglumphy Homestead
Historic Structures
Dating historical structures using dendrochronology. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: 2014 Climate Change Class
U.S. Drought Monitor, October 21, 2014, 2014 NOAA National Climatic Data Center
U.S. Drought Monitor, October 21, 2014, Michael J. Brewer
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for October 21, 2014 (10/21/14) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.