Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Kentucky (9522)
- University of Nebraska - Lincoln (1408)
- University of South Florida (625)
- Utah State University (606)
- University of Texas Rio Grande Valley (436)
-
- Old Dominion University (339)
- University of Arkansas, Fayetteville (294)
- Department of Primary Industries and Regional Development, Western Australia (267)
- Western Kentucky University (174)
- University of Nevada, Las Vegas (142)
- Portland State University (140)
- Boise State University (129)
- University of New Hampshire (128)
- Montclair State University (125)
- University of South Carolina (110)
- City University of New York (CUNY) (107)
- TÜBİTAK (107)
- Louisiana State University (105)
- Western Michigan University (98)
- South Dakota State University (93)
- University of Dar es Salaam (86)
- Missouri University of Science and Technology (84)
- University of Colorado Law School (84)
- The University of Southern Mississippi (78)
- University of North Dakota (74)
- Wright State University (71)
- University of Texas at El Paso (68)
- Chapman University (62)
- Universitas Padjadjaran (61)
- China Coal Technology and Engineering Group (CCTEG) (60)
- Keyword
-
- Grazing (393)
- Nitrogen (272)
- Climate change (237)
- Alfalfa (203)
- Soil (187)
-
- Grassland (174)
- Biodiversity (168)
- Sheep (167)
- Forage (164)
- Phosphorus (164)
- Western Australia (164)
- Pasture (159)
- Cattle (156)
- Water quality (155)
- Digestibility (146)
- Yield (141)
- Forage quality (137)
- Silage (137)
- Sustainability (126)
- Remote sensing (122)
- Legumes (120)
- Nutritive value (120)
- Groundwater (119)
- Hydrology (118)
- Geology (115)
- Stocking rate (115)
- Trifolium repens (113)
- Intake (112)
- Management (112)
- Drought (109)
- Publication Year
- Publication
-
- IGC Proceedings (1977-2023) (9261)
- United States Geological Survey: Staff Publications (519)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (371)
- International Journal of Speleology (339)
- Memorandum (315)
-
- Theses and Dissertations (248)
- Faculty Publications (207)
- Department of Earth and Atmospheric Sciences: Faculty Publications (184)
- OES Faculty Publications (158)
- Electronic Theses and Dissertations (149)
- Graduate Theses and Dissertations (146)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (121)
- School of Natural Resources: Dissertations, Theses, and Student Research (118)
- USF Tampa Graduate Theses and Dissertations (115)
- Bulletin of the University of Nebraska State Museum (1924–2023) (112)
- Masters Theses (109)
- Turkish Journal of Earth Sciences (107)
- School of Geosciences Faculty and Staff Publications (98)
- Tanzania Journal of Science (86)
- Department of Earth and Environmental Studies Faculty Scholarship and Creative Works (83)
- Geosciences Faculty Publications and Presentations (79)
- OES Theses and Dissertations (77)
- United States Geological Survey: Publications (69)
- Open Access Theses & Dissertations (65)
- Master's Theses (64)
- Masters Theses & Specialist Projects (64)
- Journal of the Arkansas Academy of Science (63)
- United States Environmental Protection Agency: Publications (63)
- Jurnal Kultivasi (61)
- Coal Geology & Exploration (60)
- Publication Type
- File Type
Articles 9781 - 9810 of 17815
Full-Text Articles in Entire DC Network
Research On Rejuvenation And Replacement Cultivated Technology Of Salix Psammophila In The Hobq Desert, Zhiying Mi, Yong Gao
Research On Rejuvenation And Replacement Cultivated Technology Of Salix Psammophila In The Hobq Desert, Zhiying Mi, Yong Gao
IGC Proceedings (1977-2023)
No abstract provided.
A Resource‐Explicit Population Model For The Management Of A Dominant Shrub That Takes Into Account The Ruminants' Feeding Strategy, D. Magda, Cyril Agreil, E. Chambon-Dubreuil, M. Jarry, Michel Meuret
A Resource‐Explicit Population Model For The Management Of A Dominant Shrub That Takes Into Account The Ruminants' Feeding Strategy, D. Magda, Cyril Agreil, E. Chambon-Dubreuil, M. Jarry, Michel Meuret
IGC Proceedings (1977-2023)
No abstract provided.
Study On Some Models Exploiting Pasture Industry In The South Of China, Keyun Li, Xiong Li
Study On Some Models Exploiting Pasture Industry In The South Of China, Keyun Li, Xiong Li
IGC Proceedings (1977-2023)
No abstract provided.
Application Of Excitation-Emission Matrices To Fluorescent Dye Tracing Of Groundwater Flow, Cayla M. Baughn
Application Of Excitation-Emission Matrices To Fluorescent Dye Tracing Of Groundwater Flow, Cayla M. Baughn
Masters Theses & Specialist Projects
Fluorescent dye tracing of groundwater is a technique employed particularly in carbonate rock karst regions to examine karst hydrology by mapping underground flow paths. It is important to understand the hydrology of karst environments because solutionally-enlarged conduits may allow the rapid influx of contaminants into the groundwater system. Fluorescent dye tracing involves the injection of a fluorescent dye into an appropriate injection site (sinking streams, sinkholes, or even through soil flushed with water) and is followed by sampling at sites where the dye may be recovered (typically springs). Various methods exist by which sampling may occur, but all methods ultimately …
Impacts Of Forest Management And Timber Harvest Practices On Karst Critical Zone Processes In Tongass National Forest, Alaska, Anna Gwendolyn Harris
Impacts Of Forest Management And Timber Harvest Practices On Karst Critical Zone Processes In Tongass National Forest, Alaska, Anna Gwendolyn Harris
Masters Theses & Specialist Projects
This study characterizes the throughfall, hydrogeochemistry, dissolution rates, and carbon sources of two proximate temperate rainforest cave systems within the Tongass National Forest in Southeast Alaska (Tongass). Study sites include: an old-growth forest, characterized by having never been logged (containing Walkabout Cave system); and a previously logged – within thirty years, second-growth forest (containing Zina Cave system). Precipitation data were recorded over a five-month period at 10-minute intervals, to understand the effects of throughfall between the altering old and second-growth canopies. At each major spring for the two cave systems, high-resolution data were collected from June 29 through November 21, …
Nest Moisture Content Affects Loggerhead Hatchling Size And Neonate Development, Kelly M. Detmer
Nest Moisture Content Affects Loggerhead Hatchling Size And Neonate Development, Kelly M. Detmer
Scientific Communication News
No abstract provided.
Shift In The Paradigm For Gssp Boundary Definition, V. I. Davydov
Shift In The Paradigm For Gssp Boundary Definition, V. I. Davydov
Geosciences Faculty Publications and Presentations
For over 200 years the use of biotic events as the basis for the establishment of chronostratigraphic boundaries has been the only approach successfully utilized for international and national chronostratigraphy. The traditional biostratigraphic method provides relatively high resolution, averaging 1 Ma or sometimes less. This biochronological evolutionary approach to the Global Boundary Stratotype section and Point (GSSP) utilizes biotic Primary Markers (PM), with a few exceptions, encompasses the integrated PM and other non-PM markers as the general principles for defining GSSP boundaries and is a reasonably reliable mechanism for global correlation and a relatively stable International Geologic Time Scale (IGTS). …
Constructing A Time Scale Of Biotic Recovery Across The Cretaceous–Paleogene Boundary, Corral Bluffs, Denver Basin, Colorado, U.S.A., Vincent Isakson, Mark D. Schmitz
Constructing A Time Scale Of Biotic Recovery Across The Cretaceous–Paleogene Boundary, Corral Bluffs, Denver Basin, Colorado, U.S.A., Vincent Isakson, Mark D. Schmitz
Geosciences Faculty Publications and Presentations
The Cretaceous–Paleogene (K–Pg) boundary interval represents one of the most significant mass extinctions and ensuing biotic recoveries in Earth history. Earliest Paleocene fossil mammal faunas corresponding to the Puercan North American Land Mammal Age (NALMA) are thought to be highly endemic and potentially diachronous, necessitating precise chronostratigraphic controls at key fossil localities to constrain recovery dynamics in continental biotas following the K–Pg mass extinction. The Laramide synorgenic sedimentary deposits within the Denver Basin in east-central Colorado preserve one of the most continuous and fossiliferous records of the K–Pg boundary interval in North America. Poor exposure in much of the Denver …
Trace Metals And The Environment: Studying The Behaviour Of Iceland’S Glacially Sourced Trace Metals, Owen Bailey
Trace Metals And The Environment: Studying The Behaviour Of Iceland’S Glacially Sourced Trace Metals, Owen Bailey
Independent Study Project (ISP) Collection
Trace metal contamination in marine ecosystems is a problem for every trophic level, from zooplankton up to humans. The mobility and uptake availability of these metals depend on such environmental parameters as salinity, temperature, and pH, among others. To explore the effects of varying parameters on dissolved metal behaviour, I studied the Jökulsárlón glacial lagoon, into which the Breidamerkurjökull glacier deposits trace metals from volcanic ash through glacial melt. In this study I develop and follow a sampling procedure to analyze trace metal concentrations in the lagoon, while additionally discussing the behaviour and impact of trace metals, focusing on cadmium, …
Iron Speciation In Pm2.5 From Urban, Agriculture, And Mixed Environments In Colorado, Usa, Joseph R. Salazar, David J. Pfotenhauer, Frank Leresche, Fernando L. Rosario-Ortiz, Michael P. Hannigan, Sirine C. Fakra, Brian Majestic
Iron Speciation In Pm2.5 From Urban, Agriculture, And Mixed Environments In Colorado, Usa, Joseph R. Salazar, David J. Pfotenhauer, Frank Leresche, Fernando L. Rosario-Ortiz, Michael P. Hannigan, Sirine C. Fakra, Brian Majestic
Chemistry and Biochemistry: Faculty Scholarship
Atmospheric iron solubility varies depending on whether the particles are collected in rural or urban areas, with urban areas showing increased iron solubility. In this study, we investigate if the iron species present in different environments affects its ultimate solubility. Field data are presented from the Platte River Air Pollution and Photochemistry Experiment (PRAPPE), aimed at understanding the interactions between organic carbon and trace elements in atmospheric particulate matter (PM). 24-hr PM2.5 samples were collected during the summer and winter (2016–2017), at three different sites on the Eastern Colorado plains: an urban, agricultural, and a mixed site. Downtown Denver had …
Deep Sea Isopods From The Western Mediterranean: Distribution And Habitat, Joan E. Cartes, Diego F. Figueroa
Deep Sea Isopods From The Western Mediterranean: Distribution And Habitat, Joan E. Cartes, Diego F. Figueroa
School of Earth, Environmental, & Marine Sciences Faculty Publications
Isopods are a highly diversified group of deep-sea fauna, with a wide variety of shapes which must reflect a similar great variety of adaptations to the deep environments. The deep Mediterranean, however, has a low diversity of isopods related to its oligotrophy, the thermal stability of deep-water masses (∼12.8 °C below 150 - 200 m) and rather homogeneous geomorphology. The main factor defining isopod habitats in the Balearic Basin is insularity vs mainland influence. Desmosomatidae and Ischnomesidae, examples of epibenthic species (with lack of paddle-shaped legs and non/low-natatory capacity) are mainly linked to mainland areas with higher % organic matter …
Sward Allowance At Early Lactation Of Primiparous Dairy Cows: Iii-Metabolic Profiles, A. Meikle, D. A. Mattiauda, G. Uriarte, L. Adrien, Pablo Soca, P. Chilibroste
Sward Allowance At Early Lactation Of Primiparous Dairy Cows: Iii-Metabolic Profiles, A. Meikle, D. A. Mattiauda, G. Uriarte, L. Adrien, Pablo Soca, P. Chilibroste
IGC Proceedings (1977-2023)
No abstract provided.
Dynamics Of Seedling Emerging And Survival Rates Of Stipa Baicalensis Steppe: Community Under Two Utilizing Regimes, Mingjiu Wang, Q. F. Li, F. L. Shi, J. L. He
Dynamics Of Seedling Emerging And Survival Rates Of Stipa Baicalensis Steppe: Community Under Two Utilizing Regimes, Mingjiu Wang, Q. F. Li, F. L. Shi, J. L. He
IGC Proceedings (1977-2023)
No abstract provided.
Application Of Vetiver Grass For Revegetation In Rare Earth Mine, South China, Xuhui Kong, Lixia Gao, Fuhe Luo, Yingbo Sun
Application Of Vetiver Grass For Revegetation In Rare Earth Mine, South China, Xuhui Kong, Lixia Gao, Fuhe Luo, Yingbo Sun
IGC Proceedings (1977-2023)
No abstract provided.
Increasing Nitrogen Deposition And Grassland Productivity In Mongolia, T. Kinugasa, M. Shinoda, A. Tsunekawa
Increasing Nitrogen Deposition And Grassland Productivity In Mongolia, T. Kinugasa, M. Shinoda, A. Tsunekawa
IGC Proceedings (1977-2023)
No abstract provided.
Rangeland, Ecological Integrity And Sustainability: An Analysis In The Himalayan Mountain Context, Vir Singh, Babita Bohra, Manisha Joshi
Rangeland, Ecological Integrity And Sustainability: An Analysis In The Himalayan Mountain Context, Vir Singh, Babita Bohra, Manisha Joshi
IGC Proceedings (1977-2023)
No abstract provided.
Revegetation Of Bare Patches In Saline‐Alkali Grassland In Northeast Of China, S. C. Jiang, D. W. Zhou
Revegetation Of Bare Patches In Saline‐Alkali Grassland In Northeast Of China, S. C. Jiang, D. W. Zhou
IGC Proceedings (1977-2023)
No abstract provided.
Benefit Evaluation Of Rangeland Convertion Program (Rcp) In Typical Project Area Of Inner Mongolia, Ying Han, Xiangyang Hou
Benefit Evaluation Of Rangeland Convertion Program (Rcp) In Typical Project Area Of Inner Mongolia, Ying Han, Xiangyang Hou
IGC Proceedings (1977-2023)
No abstract provided.
Assessment Of Soil Properties Under Different Land Use Types In Olokemeji Forest Reserves In Ogun State Southwestern Nigeria, Oluwatoyin Opeyemi Akintola, Adewunmi Idayat Bodede, Michael Smart, Ayodeji Gideon Adebayo, Olawale Nurean Sulaiman
Assessment Of Soil Properties Under Different Land Use Types In Olokemeji Forest Reserves In Ogun State Southwestern Nigeria, Oluwatoyin Opeyemi Akintola, Adewunmi Idayat Bodede, Michael Smart, Ayodeji Gideon Adebayo, Olawale Nurean Sulaiman
Journal of Bioresource Management
Knowledge of soil properties is essential for environmental sustainability for any forest reserve or plantation. The physical and chemical properties of soil under three different land uses was investigated to assess the nutrient and fertility status of the soils. Fifteen soil samples, each collected from different locations within the natural forest, plantation and farm land were analyzed for soil texture, bulk density, porosity, pH, organic carbon, organic matter content, total nitrogen, available phosphorus, Na, K, Ca, Mg, Zn, Cu, Fe and Mn. Texturally, the soils were loamy, loamy sand and sandy loamy in the natural forest, plantation and farmland respectively. …
Coral Gardens Reef, Belize: A Refugium In The Face Of Caribbean-Wide Acropora Spp. Coral Decline, Lisa Greer, Tara Clark, Tanner Waggoner, James Busch, Thomas P. Guilderson, Karl Wirth, Jian-Xin Zhao, H. Allen Curran
Coral Gardens Reef, Belize: A Refugium In The Face Of Caribbean-Wide Acropora Spp. Coral Decline, Lisa Greer, Tara Clark, Tanner Waggoner, James Busch, Thomas P. Guilderson, Karl Wirth, Jian-Xin Zhao, H. Allen Curran
Geosciences: Faculty Publications
Caribbean Acropora spp. corals have undergone a decline in cover since the second half of the twentieth century. Loss of these architecturally complex and fast-growing corals has resulted in significant, cascading changes to the character, diversity, and available eco spaces of Caribbean reefs. Few thriving Acropora spp. populations exist today in the Caribbean and western North Atlantic seas, and our limited ability to access data from reefs assessed via long-term monitoring efforts means that reef scientists are challenged to determine resilience and longevity of existing Acropora spp. reefs. Here we used multiple dating methods to measure reef longevity and determine …
Effect Of Grazing Intensity On Photosynthesis And Soil Respiration Of Alpine Grassland In Tibet, Y. F. Wan, Q. Z. Gao, Y. Li, X. B. Qin, W. Z. Jiancun, B. S. Wang
Effect Of Grazing Intensity On Photosynthesis And Soil Respiration Of Alpine Grassland In Tibet, Y. F. Wan, Q. Z. Gao, Y. Li, X. B. Qin, W. Z. Jiancun, B. S. Wang
IGC Proceedings (1977-2023)
No abstract provided.
Relationship Between Different Grassland Types And Their Volatile Patterns To Enhance The Traceability Of Italian Typical Alpine Dairy Products, P. Aceto, S. Belviso, A. Cavallero, L. Falchero, A. Fossi, M. Giordano, R. Paoletti, Efisio Piano, A. Tava, G. Zeppa
Relationship Between Different Grassland Types And Their Volatile Patterns To Enhance The Traceability Of Italian Typical Alpine Dairy Products, P. Aceto, S. Belviso, A. Cavallero, L. Falchero, A. Fossi, M. Giordano, R. Paoletti, Efisio Piano, A. Tava, G. Zeppa
IGC Proceedings (1977-2023)
No abstract provided.
Long-Time Effects Of Grazing On Patagonian Rangelands (Argentina), Gabriel E. Oliva, G. Humano, D. Ferrante
Long-Time Effects Of Grazing On Patagonian Rangelands (Argentina), Gabriel E. Oliva, G. Humano, D. Ferrante
IGC Proceedings (1977-2023)
No abstract provided.
Xinjiang Grasslands Ecological Conservation And Herdsman Increase Investigation And Discussion Collecting A Countermeasure, Xuanzheng Guo, Zhiguo Dong, Li Li
Xinjiang Grasslands Ecological Conservation And Herdsman Increase Investigation And Discussion Collecting A Countermeasure, Xuanzheng Guo, Zhiguo Dong, Li Li
IGC Proceedings (1977-2023)
No abstract provided.
Evaluation Of Grassland Resources In Etuoke Front Banner, Ying De, Tegen Ao, Burenjiya
Evaluation Of Grassland Resources In Etuoke Front Banner, Ying De, Tegen Ao, Burenjiya
IGC Proceedings (1977-2023)
No abstract provided.
Natural Resource Management: Building The Case For Civic Participation In Managing The Environment, Karen Cosgrove
Natural Resource Management: Building The Case For Civic Participation In Managing The Environment, Karen Cosgrove
IGC Proceedings (1977-2023)
No abstract provided.
Cymbopogon Nardus, A Grass Weed In The Rangelands Of Uganda: Impact On Plant Species Biodiversity And Livestock Performance, S. G. Byenkya, C. Ebong, C. Sudhe, J. Kigongo
Cymbopogon Nardus, A Grass Weed In The Rangelands Of Uganda: Impact On Plant Species Biodiversity And Livestock Performance, S. G. Byenkya, C. Ebong, C. Sudhe, J. Kigongo
IGC Proceedings (1977-2023)
No abstract provided.
Do Fungal Symbionts Of Salt Marsh Plants Affect Interspecies Competition?, Vanessa Robertson-Rojas
Do Fungal Symbionts Of Salt Marsh Plants Affect Interspecies Competition?, Vanessa Robertson-Rojas
Dissertations and Theses
The effects of arbuscular mycorrhizal fungi (AMF) as salt marsh plant symbionts may have significant effects on landscape scale distribution patterns and plant-related ecosystem functions that are important to estuarine habitats. This work investigates the effects AMF have on Phalaris arundinacea, Deschampsia cespitosa, and Juncus balticus when grown in a common garden experiment. Plants were grown with and without AMF inoculation in both polyculture and monoculture communities and examined for a variety of response variables that represent different competition strategies. Factorial ANOVA analysis revealed a significant three-way interaction among fungal treatment type, community type, and species for …
The Impact Of Overgrazing On Needlegrass‐Peashrub‐Forbs Community, D. Bolormaa, B. Avaadorj, B. Enkhmaa, Ts. Altanzul
The Impact Of Overgrazing On Needlegrass‐Peashrub‐Forbs Community, D. Bolormaa, B. Avaadorj, B. Enkhmaa, Ts. Altanzul
IGC Proceedings (1977-2023)
No abstract provided.
Simulation Tools And Pastoral Resources Dynamics In Sahelian Area: The Senegalese Example, Alassane Bah, Ibra Touré, Alexandre Ickowicz, Amadou Tamsir Diop
Simulation Tools And Pastoral Resources Dynamics In Sahelian Area: The Senegalese Example, Alassane Bah, Ibra Touré, Alexandre Ickowicz, Amadou Tamsir Diop
IGC Proceedings (1977-2023)
No abstract provided.