Digital Commons Network^™

Residual Effects Of Fertilization Strategies During The Rainy Season On Forage Growth Traits Of Deferred Aftermath Of Marandugrass Pasture, Carlos A. M. Gomide, J. H. A. Rangel, S. A. Almeida

IGC Proceedings (1977-2023)

No abstract provided.

Equity Implications Of The Changing Institutional Landscape In U.S. Rangeland Conservation, Sally Fairfax, Lynn Huntsinger, Wenjun Li

IGC Proceedings (1977-2023)

No abstract provided.

Grazing Practices And Rangeland Conservation: Towards Output‐Based Contracts To Improve Relevance And Enhance Technical Innovation, Cyril Agreil, Jocelyn Haskell, John Haskell, Michel Meuret, Fred Provenza

IGC Proceedings (1977-2023)

No abstract provided.

A Tradable Emissions Permit Program For Nitrogen In Lake Taupo, Geoff Kaine, M. Higson, Justine Young

IGC Proceedings (1977-2023)

No abstract provided.

Policy Drivers For Rangelands In Developing Countries, Maryam Niamir‐Fuller

IGC Proceedings (1977-2023)

No abstract provided.

Himalayan Rangelands Ecology And Animal Production Influenced By Changing Social And Economic Culture In Northern Areas Of Pakistan, Syed Hassan Raza

IGC Proceedings (1977-2023)

No abstract provided.

On The Coupling Relations And Applied Value Of Herdsman And Grassland Ecosystem, Kanglong Luo, Yongfeng Lu

IGC Proceedings (1977-2023)

No abstract provided.

Comparison Study On The Development Mode Of Nomadic Civilizations In Mongolia Plateau, Jin Yi, Jilqun Chen, Qimuge Wuren

IGC Proceedings (1977-2023)

No abstract provided.

Linking Remotely Sensed Carbon And Water Use Efficiencies With In Situ Soil Properties, Bassil El Masri, Gary Stinchcomb, Haluk Cetin, Benedict Ferguson, Sora L. Kim, Jingfeng Xiao, Joshua B. Fisher

Faculty & Staff Research and Creative Activity

The capacity of terrestrial ecosystems to sequester carbon dioxide (CO2 ) from the atmosphere is expected to be altered by climate change and CO2 fertilization, but this projection is limited by our understanding of how the soil system interacts with plants. Understanding the soil–vegetation interactions is essential to assess the magnitude and response of terrestrial ecosystems to the changing climate. Here, we used soil profile and satellite data to explore the role that soil properties play in regulating water and carbon use by plants. Data obtained for 19 terrestrial ecosystem sites in a warm temperate and humid climate were used …

Contribution Of Common Grazing Lands To People's Livelihood In Semi‐Arid India, A. K. Misra, Md Osman, G. R. Korwar

IGC Proceedings (1977-2023)

No abstract provided.

Mongolian Nomadic Culture And Ecological Reconstruction In The Agro‐Pastoral Mosaic Zone In Northern China, Munkhdalai A. Zhang

IGC Proceedings (1977-2023)

No abstract provided.

A Forage Book Of International Impact, Garry D. Lacefield, Donald M. Ball, Carl S. Hoveland, Donald L. Armstrong

IGC Proceedings (1977-2023)

No abstract provided.

Effects Of Treatments On Fermentation Quality And Nutrition Ingredient Of Small Reed, Yusup Yusanjan, Ainiwaer Aishan, Guangwei Zhao

IGC Proceedings (1977-2023)

No abstract provided.

Herbaceous And Woody Vegetation Composition Dry Matter Production And Range Condition In Lowlands Of Bale, Southeast Ethiopia, Teshome Abate, Abule Ebro, Lisanework Nigatu

IGC Proceedings (1977-2023)

No abstract provided.

Effects Of Two Lactic Acid Bacteria Strains On The Fermentation And Aerobic Stability Of Corn Silage, J. G. Zhang, Y. Cai, H. Kawamoto, Y. Aoki, A. Yamad, M. Kamo

IGC Proceedings (1977-2023)

No abstract provided.

Biomedical Activities Of Derivatives Of Polysaccharides Extracted From Astragalus Membranaceus, Gereltu Borjihan

IGC Proceedings (1977-2023)

No abstract provided.

Ground Ear Maize As An Alternative Forage Source For Beef Cattle In Ireland, P. O'Hanlon, D. Kenny, Tommy M. Boland, G. P. Keane, M. Bridget Lynch

IGC Proceedings (1977-2023)

No abstract provided.

College Of Natural Sciences Newsletter, July 2021, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

Volume 2, Issue 7.

Page 1 Dean's Message
Page 2 Celebrating Three Years
Page 3 Summer School Travel
Page 4 Media Coverage of CNS
Page 5 Chemistry Teachers Visit
Page 5 Remembering Dr. Warren Hein
Page 6 Research Spotlights: Undergraduate Summer Experiences
Page 7 Open PRAIRIE Data; Grants Awarded in CNS

Latex Variation In Hemp Dogbane (Apocynum Cannabinum), Michael Aikin, Rose Keith Phd

Annual Student Research Poster Session

Hemp Dogbane (Apocynum cannabinum) is a weedy perennial native to North America that can reproduce by seed or clonally. Shoots can emerge from vertically oriented crown roots or horizontally orientated lateral roots. This plant can be found readily throughout the nature park in small to large patches. We sampled from 6 populations, 3 within the quarry bottom and 3 outside of the quarry bottom. We looked at latex production to determine if it was influenced more by herbivory or water availability. In our analysis we discovered that water availability played a role in the amount of latex produced and that …

Cellular Remains In A ~3.42-Billion-Year-Old Subseafloor Hydrothermal Environment, Barbara Cavalazzi, Laurence Lamelle, Alexandre Simionovici, Sherry L. Cady, Michael J. Russell, Elena Bailo, Roberto Canteri, Emanuele Enrico, Alain Manceau, Multiple Additional Authors

Geology Faculty Publications and Presentations

Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of Earth’s earliest microbial habitats. Although the site of life’s emergence continues to be debated, evidence of early life provides insights into its early evolution and metabolic affinity. Here, we present the discovery of exceptionally well-preserved, ~3.42-billion-year-old putative filamentous microfossils that inhabited a paleo-subseafloor hydrothermal vein system of the Barberton greenstone belt in South Africa. The filaments colonized the walls of conduits created by low-temperature hydrothermal fluid. Combined with their morphological and chemical characteristics as investigated over a range of scales, they can be considered the oldest …

Life On The Rocks: Small-Scale Primary Succession In An Abandoned Limestone Quarry, Sophia P. Atkinson, Diana Borse, Cedrick Chandler, Daniel L. Saltz, Dana A. Dudle Phd

Annual Student Research Poster Session

Abandoned quarries, from which all soil and plant life have been removed, represent an opportunity to study primary succession at a small scale. Using a framework suggested by Gilardelli et al. (2016), we assessed the stage of primary succession in an abandoned limestone quarry in Greencastle, Indiana, where gravel extraction ceased in 1977. From 2018-2021 we surveyed the quarry floor to describe the species composition and distribution of flowering plant species that have established at the site, then described each species in terms of its plant form, life history, native and wetland status, and invasive rank using the USDA website. …

Soil Morphology And Carbon Stocks Of Deflation Basin Wetlands In Eastern Nebraska, Usa, Aubrey Grace Kemper

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

Wetlands contribute important ecosystem services such as water filtration and storage, wildlife habitat, and carbon sequestration. The objective of this study is to compare the soil morphology and the carbon and nitrogen stocks between the upland, basin edge, and basin floor in playa wetlands of eastern Nebraska. This work was conducted in three deflation basin wetlands in the Todd Valley, a loess-mantled, former course of the Platte River, in eastern Nebraska. Soil morphological descriptions were evaluated to two meters’ depth using cores collected along three transects from the upland to the basin floor in three basins, carbon and nitrogen stocks …

Consulting Place As Stakeholder: Accessing The Input Of Ecological Community, Hunter Adkisson

Landscape Architecture Undergraduate Honors Theses

This is a project about how landscape architects approach the landscape in their design process. Indigenous worldviews hold that the world is living and animate in its own right. When we consider stakeholder engagement in this light, the need arises to extend the definition of stakeholders to include the ecological communities of place – the flora, fauna, soils, and other non-human elements of place. To gather that input, I experimented with techniques to access a greater awareness of ecological community at two sites with different levels of urbanity and types of land management practices. This experimental approach was surprisingly successful …

Edge Influence On Forest Composition In A Pine-Oak Forest In Central Mexico, Isidro Avila, Dana Dudle Phd

Annual Student Research Poster Session

Deforestation in central Mexico comes as a direct consequence of the increase in agriculture demand and has resulted in the creation of more habitat edges. Changes in land usage for agriculture and resource extraction has resulted in habitat destruction and degradation; these same mechanisms have led to habitat fragmentation by producing smaller, and isolated fragments separated by human-transformed land cover. The loss of continuous area has resulted in greater exposure to human dominated landscapes resulting in changes to the structure and function of the remaining fragment. To quantify, document, and describe the edge influence on forest composition fragmented by an …

Codar's Surface Flow At The Mouth Of The Chesapeake Bay: Relation To Bay's And Atlantic's Forcing, Shelby Kathryn Henderson

OES Theses and Dissertations

Surface currents in the lower Chesapeake Bay (CB) observed with land-based high-frequency radar antennas, or Coastal Ocean Dynamics Application Radar (CODAR), produce hourly 2D maps of current velocities used for search and rescue, pollution tracking, and fishing operations. This study analyzes the correlations between a 9-year record of surface currents measured by CODAR to coastal sea level, local wind forcing, river discharge into CB, and water transport through the Florida Straits, representing the Gulf Stream’s control on sea level along the U.S. mid-Atlantic coast. The goal of this study is to find ways to use CODAR data to detect and …

Carbon Storage Via Mineral Bonding In Subsoils A Review Of Soil Processes, Kiele Goins

Theses and Dissertations

Soil is an important but often poorly understood portion of the carbon cycle. Soil can store more carbon than twice today’s atmosphere, but the factors that control carbon storage are often unclear. Carbon enters the soil through input of organic matter, erosion, and aerosol deposition and is lost mostly via microbial decomposition. Carbon loss in soil is impacted by the chemical composition of organic compounds, environmental factors, and human activities. Furthermore, as climate changes soil, carbon storage may be vulnerable. Although carbon can be stored throughout soil, carbon storage varies with depth. In topsoil, carbon is stored for short periods …

Effects Of Scarification, Phytohormones, Soil Type, And Warming On The Germination And/Or Seedling Performance Of Three Tamaulipan Thornscrub Forest Species, Paula Luera, Kimberly Wahl-Villarreal, Bradley O. Christoffersen, Abeny Treviño, Pushpa Soti, Christopher A. Gabler

School of Earth, Environmental, & Marine Sciences Faculty Publications

The Tamaulipan thornforests of south Texas and northeast Mexico are an ecologically and economically important conservation hotspot. Thornforest restoration is limited by native tree and shrub seedling availability for planting. Seedling shortages arise from low seed availability and knowledge gaps regarding best practices for germinating and growing the 70+ thornforest species desired for restoration plantings. To fill key knowledge gaps, we investigated three ecologically important thornforest species with low or highly variable germination or seedling survival rates: Ebenopsis ebano, Cordia boissieri, and Zanthoxylum fagara. For each, we quantified the effects of different dosages of chemical seed treatments used to promote …

Assessing Impacts Of Winter-Hay Feeding On Soil And Forage Nutrient Dynamics In A Rotationally-Grazed Pasture System In Arkansas, Lawrence Gordon Berry Iv

Graduate Theses and Dissertations

More than 38 % of United States’ rural land area was used for grazing (i.e., pastureland or rangeland) ruminant animals in 2017, constituting the largest private land use group. The expansive nature of these lands means that grazing and pasture management decisions have potential to impact water quality as well as profit margins. As a result, beef producers are under increased pressure from economic and environmental standpoints to limit application of nutrients beyond those required to grow the forage needed for animal consumption. At the same time, a large amount of nutrients is recycled back to pasture systems directly from …

The Applicability, Efficacy And Risks Of Natural Sequence Farming In The Dryland Agricultural Zone Of South West Western Australia, Nik Callow, Rose Anne Bell

Natural resources commissioned reports

Natural sequence farming (NSF) is an approach to restoring degraded agricultural land, developed by Peter Andrews on his property Tarwyn Park in New South Wales. The approach aims to rehydrate the landscape by slowing the movement of water with a series of structures and then using this water to drive plant growth and improve soil function.

The Department of Primary Industries and Regional Development engaged the University of Western Australia to review the applicability, efficacy and risks associated with using NSF principles and practices in the south-west dryland agricultural zone in Western Australia. The review has combined information from the …

Effect Of Silicon On Early Growth And Yields Of Alfalfa (Medicago Sativa), Fuping Tian

IGC Proceedings (1977-2023)

No abstract provided.