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2020

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Articles 991 - 1020 of 3204

Full-Text Articles in Earth Sciences

Seasonal Nutrition Content Changes Of Stockpiled And Standing Leymus Cinereus Forage, Barry L. Perryman, L. B. Bruce, K. Conley, L. Schmelzer, T. Wuligi Aug 2020

Seasonal Nutrition Content Changes Of Stockpiled And Standing Leymus Cinereus Forage, Barry L. Perryman, L. B. Bruce, K. Conley, L. Schmelzer, T. Wuligi

IGC Proceedings (1977-2023)

No abstract provided.


Use Of Biofertilizer In The Formation Of Joined Pastures With Brachiaria Decumbens And Stylosanthes Sp, L. M. Paiva, H. J. Fernandes, V. A. C. Dos Santos, F. P. De Oliveira, P. S. F. Trevisan, A. V. De Almeida Aug 2020

Use Of Biofertilizer In The Formation Of Joined Pastures With Brachiaria Decumbens And Stylosanthes Sp, L. M. Paiva, H. J. Fernandes, V. A. C. Dos Santos, F. P. De Oliveira, P. S. F. Trevisan, A. V. De Almeida

IGC Proceedings (1977-2023)

No abstract provided.


Growth And Development In Cultivars Of Phleum Pratense And Lolium Perenne During Winter, Liv Østrem, M. Jørgensen, M. Höglind Aug 2020

Growth And Development In Cultivars Of Phleum Pratense And Lolium Perenne During Winter, Liv Østrem, M. Jørgensen, M. Höglind

IGC Proceedings (1977-2023)

No abstract provided.


Plagioclase, Scott Brande Aug 2020

Plagioclase, Scott Brande

RockDoc - 3D Rock Models

Courtesy of Prof. Dexter Perkins


Sulfur, Scott Brande Aug 2020

Sulfur, Scott Brande

RockDoc - 3D Rock Models

Sulfur model from Prof. Dexter Perkins


Impacts Of Strategic Grazing On Herbage Accumulation And Nutritive Value Of Naturalised Hill Pasture, Zhongnan Nie, R. P. Zollinger Aug 2020

Impacts Of Strategic Grazing On Herbage Accumulation And Nutritive Value Of Naturalised Hill Pasture, Zhongnan Nie, R. P. Zollinger

IGC Proceedings (1977-2023)

No abstract provided.


Sources Of Nitrogen In A Napier Grass/Legume Mixture On Smallholder Dairy Farms In Central Kenya, David Miano Mwangi Aug 2020

Sources Of Nitrogen In A Napier Grass/Legume Mixture On Smallholder Dairy Farms In Central Kenya, David Miano Mwangi

IGC Proceedings (1977-2023)

No abstract provided.


Analysis Of Surface Temperature Trends Of Global Lakes Using Satellite Remote Sensing And In Situ Observations, Christal Jean Soverall, Zahida Yasmin, Mahoutin Godnou, Wen Yong Huang, Ryan Chen, Abdou Bah, Hamidreza Norouzi, Reginald Blake Aug 2020

Analysis Of Surface Temperature Trends Of Global Lakes Using Satellite Remote Sensing And In Situ Observations, Christal Jean Soverall, Zahida Yasmin, Mahoutin Godnou, Wen Yong Huang, Ryan Chen, Abdou Bah, Hamidreza Norouzi, Reginald Blake

Publications and Research

Even though lakes make up a small percentage of the water bodies on the global land surface, lakes provide critically important ecosystem services. Unfortunately, however, several lake surface areas around the globe have been changing with many of them drastically decreasing due to climate variability and local mismanagement at the basin-scale level. Lake Surface Water Temperature (LSWT) is recognized as a critical indicator of climate change in lakes. The changes in water and the surrounding land temperatures may be an indicator of climate variability if there is consistency between changes in both temperatures. This project focuses on the application of …


Nitrogen Fixation In Irrigated Lucerne (Medicago Sativa) Systems Assessed Using 15N Natural Abundance, Murray Unkovich, Huimin Yang, Ann Mcneill, Xianzhi Wang Aug 2020

Nitrogen Fixation In Irrigated Lucerne (Medicago Sativa) Systems Assessed Using 15N Natural Abundance, Murray Unkovich, Huimin Yang, Ann Mcneill, Xianzhi Wang

IGC Proceedings (1977-2023)

No abstract provided.


Physical Soil Quality In The Main Areas Of Pastures In Dairy Production In Uruguay, A. Morón, J. Molfino, Jorge Sawchik, A. Califra, E. Lazbal, A. La Manna, E. Malcuori Aug 2020

Physical Soil Quality In The Main Areas Of Pastures In Dairy Production In Uruguay, A. Morón, J. Molfino, Jorge Sawchik, A. Califra, E. Lazbal, A. La Manna, E. Malcuori

IGC Proceedings (1977-2023)

No abstract provided.


Productivity Potential And Seasonality Of Five Grass Species Under Varying Nitrogen Levels At Three Latitudes In Ireland, D. Mcgilloway, Trevor J. Gilliland Aug 2020

Productivity Potential And Seasonality Of Five Grass Species Under Varying Nitrogen Levels At Three Latitudes In Ireland, D. Mcgilloway, Trevor J. Gilliland

IGC Proceedings (1977-2023)

No abstract provided.


Interactive Effects Of Pelletised Lime And Fertiliser N On Sward Productivity, S. Mccormick, C. Watson, S. Morrison, S. Mayne, B. Mccarney, R. Stewart Aug 2020

Interactive Effects Of Pelletised Lime And Fertiliser N On Sward Productivity, S. Mccormick, C. Watson, S. Morrison, S. Mayne, B. Mccarney, R. Stewart

IGC Proceedings (1977-2023)

No abstract provided.


Biomass Production And Soil Carbon In The Grazing Lands Of Eastern Ghats, Tamil Nadu, K. Manoharan, Kailash Paliwal Aug 2020

Biomass Production And Soil Carbon In The Grazing Lands Of Eastern Ghats, Tamil Nadu, K. Manoharan, Kailash Paliwal

IGC Proceedings (1977-2023)

No abstract provided.


Vertical Distributions Of Soil Microbial Biomass Carbon: A Global Dataset, Tingting Sun, Yugang Wang, Dafeng Hui, Xin Jing, Wenting Feng Aug 2020

Vertical Distributions Of Soil Microbial Biomass Carbon: A Global Dataset, Tingting Sun, Yugang Wang, Dafeng Hui, Xin Jing, Wenting Feng

Biology Faculty Research

Soil microbial biomass carbon (SMBC) is important in regulating soil organic carbon (SOC) dynamics along soil profiles by mediating the decomposition and formation of SOC. The dataset (VDMBC) is about the vertical distributions of SOC, SMBC, and soil microbial quotient (SMQ = SMBC/SOC) and their relations to environmental factors across five continents. Data were collected from literature, with a total of 289 soil profiles and 1040 observations in different soil layers compiled. The associated environment data collectd include climate, ecosystem types, and edaphic factors. We developed this dataset by searching the Web of Sciene and the China National Knowledge Infrastructure …


Penurunan Nilai Konduktansi Stomata, Efisiensi Penggunaan Cahaya, Dan Komponen Pertumbuhan Akibat Genangan Air Pada Beberapa Genotip Tanaman Tebu, Mochamad Arief Soleh, Intan Ratna Dewi Anjarsari, Santi Rosniawaty Aug 2020

Penurunan Nilai Konduktansi Stomata, Efisiensi Penggunaan Cahaya, Dan Komponen Pertumbuhan Akibat Genangan Air Pada Beberapa Genotip Tanaman Tebu, Mochamad Arief Soleh, Intan Ratna Dewi Anjarsari, Santi Rosniawaty

Jurnal Kultivasi

Fenomena perubahan iklim mempengaruhi distribusi hujan yang tidak merata. Kelebihan air hujan di lahan akan menyebabkan genangan air karena sistem drainase lahannya kurang baik yang berdampak terganggunya pertumbuhan dan hasil tanaman tebu. Dalam kondisi tergenang (G), jumlah anakan beberapa genotip tebu menurun bila dibandingkan dengan kondisi tanpa genangan (TG) pada 77 hari setelah penggenangan (HSP), kecuali genotip tebu GMP1. Jumlah anakan tersebut berkisar antara 6,7 untuk genotip KK sampai 10,3 anakan untuk genotip GMP1. Sedangkan pada kondisi tanpa genangan kisaran jumlah adalah 8 untuk genotip PS864 sampai 13,7 untuk genotip KK. Kondisi genangan air juga telah menurunkan nilai konduktansi stomata …


Preliminary Investigations On Columbus Grass (Sorghum Almum Parodi) For Fodder In Semi‐Arid Nigeria: Effects Of Nitrogen Fertilizer On Growth Components And Herbage Yield, B. S. Malami, H. M. Tukur, N. B. Ibrahim Aug 2020

Preliminary Investigations On Columbus Grass (Sorghum Almum Parodi) For Fodder In Semi‐Arid Nigeria: Effects Of Nitrogen Fertilizer On Growth Components And Herbage Yield, B. S. Malami, H. M. Tukur, N. B. Ibrahim

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Water And Nutrient Treatment On Gas Exchange And Water Relations Of Two Casuarina Equisetifolia Clones, Bala Makesh Kumar, Kailash Paliwal Aug 2020

Effects Of Water And Nutrient Treatment On Gas Exchange And Water Relations Of Two Casuarina Equisetifolia Clones, Bala Makesh Kumar, Kailash Paliwal

IGC Proceedings (1977-2023)

No abstract provided.


Seasonal Changes Of Mineral Elements In Yak Blood, Herbage And Soil Around Qinghai Lake, X. L. Luo, J. T. Xu, Y. P. Wei, Z. B. Tong, Y. H. Ma, S. M. Chen, Z. J. Ma Aug 2020

Seasonal Changes Of Mineral Elements In Yak Blood, Herbage And Soil Around Qinghai Lake, X. L. Luo, J. T. Xu, Y. P. Wei, Z. B. Tong, Y. H. Ma, S. M. Chen, Z. J. Ma

IGC Proceedings (1977-2023)

No abstract provided.


Trend Of Thornthwaite's Aridity Index (Ai) At Atakpame (Togo), Komlan Koudahe Aug 2020

Trend Of Thornthwaite's Aridity Index (Ai) At Atakpame (Togo), Komlan Koudahe

International Programs

Drought can severely affect agricultural production potential, destroying the local economy and creating famine. Data were collected (1990 to 2014) from the Meteorological Department of Togo. Reference evapotranspiration (ETo) varied with two peaks obtained on March 28 (5.84mm) and on November 17 (4.87mm). There was water deficit in all years except 2005 and 2007. Also, there was non-significant increasing trend of aridity index (AI). Specific actions should target efficient water management in Atakpame.


20th And 21st Century Sea-Level Variability In Winyah Bay, Sc, Madison Schemery Fink Aug 2020

20th And 21st Century Sea-Level Variability In Winyah Bay, Sc, Madison Schemery Fink

Electronic Theses and Dissertations

No abstract provided.


Snow-Albedo Feedback In Northern Alaska: How Vegetation Influences Snowmelt, Lucas C. Reckhaus Aug 2020

Snow-Albedo Feedback In Northern Alaska: How Vegetation Influences Snowmelt, Lucas C. Reckhaus

Theses and Dissertations

This paper investigates how the snow-albedo feedback mechanism of the arctic is changing in response to rising climate temperatures. Specifically, the interplay of vegetation and snowmelt, and how these two variables can be correlated. This has the potential to refine climate modelling of the spring transition season. Research was conducted at the ecoregion scale in northern Alaska from 2000 to 2020. Each ecoregion is defined by distinct topographic and ecological conditions, allowing for meaningful contrast between the patterns of spring albedo transition across surface conditions and vegetation types. The five most northerly ecoregions of Alaska are chosen as they encompass …


Development And Performance Assessment Of An Integrated Vermifiltration Based Treatment System For The Treatment Of Feedlot Runoff, Rajneesh Singh, Matteo D'Alessio, Yulie Meneses, Shannon L. Bartelt-Hunt, Brian Woodbury, Chittaranjan Ray Aug 2020

Development And Performance Assessment Of An Integrated Vermifiltration Based Treatment System For The Treatment Of Feedlot Runoff, Rajneesh Singh, Matteo D'Alessio, Yulie Meneses, Shannon L. Bartelt-Hunt, Brian Woodbury, Chittaranjan Ray

Nebraska Water Center: Faculty Publications

The objective of this study was to treat feedlot runoff by developing an ecologically sustainable, affordable, and resilient treatment system having a relatively long life span. Three horizontal flow soil biofilters were utilized in this study: 1) without earthworms and plants (Biofilter (BF)), 2) with earthworms only (Vermifilter (VF)), and 3) with earthworms and plants (Macrophyte Assisted Vermifilter (MAVF)). The experiments were conducted with a hydraulic retention time of four days using Lumbricus terestrris earthworms and Carex frankii wetland plants. The average COD removal from the BF, VF, and MAVF were 23.2–30.4%, 61.4–69.1%, and 68.3–78.1%, respectively. Average TN removal efficiencies …


Evolution Of The Magnolia Growth Fault: An Evaluation Of Cenozoic Activity, Plaquemines Parish, Southeastern Louisiana, Jared S. Bullock Aug 2020

Evolution Of The Magnolia Growth Fault: An Evaluation Of Cenozoic Activity, Plaquemines Parish, Southeastern Louisiana, Jared S. Bullock

LSU New Orleans Theses and Dissertations

A geologic investigation of the Lake Hermitage area west of the Mississippi River in Plaquemines Parish, Louisiana suggests an active, regional growth fault has caused rapid local subsidence. The Magnolia growth fault is a down-to-the-south, deep-seated listric fault bounded to the west and east by two salt diapirs. Evidence from 3D seismic data, well logs, and biostratigraphy, in addition to local geomorphology, suggests the fault has been active since the Miocene and is causing submergence of wetlands on the hanging wall side. To investigate whether a correlation exists between deep-seated growth faults and subsidence at this location, near-surface data including …


Morphodynamics Of Transgressive Coastal Systems: Modeling Allogenic And Autogenic Response To Sea Level Rise, Storms, And Changes In Sediment Supply, Kevin C. Hanegan Aug 2020

Morphodynamics Of Transgressive Coastal Systems: Modeling Allogenic And Autogenic Response To Sea Level Rise, Storms, And Changes In Sediment Supply, Kevin C. Hanegan

LSU New Orleans Theses and Dissertations

Barrier islands are widespread and typically enclose landward basins connected to the ocean through tidal inlets. Low energy in the basin enables fine sediment accumulation and salt marsh formation. Sea Level Rise (SLR) causes loss of marshes due to their low elevations and inundation sensitivity. Both long-term trends in sediment supply due to SLR and episodic transfers of sediment due to storms are important to the sustainability of marshes and tidal basins. The trajectory of deltas, including the Mississippi River Delta (MRD), are also impacted by sediment supply. The redistribution of sediments (autogenic reorganization) within transgressive systems will determine their …


Forecasting The Development Of A Natural Levee Breach And Subsequent Sediment Distribution At Mardi Gras Pass, Louisiana, Joshua Hansen Aug 2020

Forecasting The Development Of A Natural Levee Breach And Subsequent Sediment Distribution At Mardi Gras Pass, Louisiana, Joshua Hansen

LSU New Orleans Theses and Dissertations

In 2012, a breach in a natural levee occurred on the Mississippi River near the Bohemian Spillway, forming a new distributary named Mardi Gras Pass. Since its genesis, scientists from local universities and NGOs have been regularly performing bathymetric and bank surveys to track the channel’s expansion, as well as discharge surveys throughout the receiving basin. This study developed and implemented a hindcast simulation based on this wealth of data utilizing the morpho- and hydrodynamic model, Delft3D. This model was then used to create a 20-year forecast and a 1-year simulation without tidal and subtidal forces. The results demonstrated that …


Nitrous Oxide Emissions From Dairy Pasture Systems In New Zealand, Jiafa Luo, S. B. Lindsey, Sterwart F. Ledgard, W. Sun, M. Kear Aug 2020

Nitrous Oxide Emissions From Dairy Pasture Systems In New Zealand, Jiafa Luo, S. B. Lindsey, Sterwart F. Ledgard, W. Sun, M. Kear

IGC Proceedings (1977-2023)

No abstract provided.


Improvement Of Production And Nutrient Uptake Of Pueraria Phaseoloides By Rock Phosphate Fertilization In Kombucha Suspension And Glomus Manihotis Fungi Inoculation, Dwi Retno Lukiwati, Novik Nurhidayat, Puput Puspitasari Aug 2020

Improvement Of Production And Nutrient Uptake Of Pueraria Phaseoloides By Rock Phosphate Fertilization In Kombucha Suspension And Glomus Manihotis Fungi Inoculation, Dwi Retno Lukiwati, Novik Nurhidayat, Puput Puspitasari

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Soil Temperature And Soil Moisture On Soil Respiration Of Ungrazed Grassland In Loess Plateau , Gansu, Xudong Li, Ding Guo, Xiaodong Li, Xiaoyu Dong, Hua Fu Aug 2020

Effect Of Soil Temperature And Soil Moisture On Soil Respiration Of Ungrazed Grassland In Loess Plateau , Gansu, Xudong Li, Ding Guo, Xiaodong Li, Xiaoyu Dong, Hua Fu

IGC Proceedings (1977-2023)

No abstract provided.


Toward Near‐Field Tsunami Forecasting Along The Cascadia Subduction Zone Using Rapid Gnss Source Models, Amy L. Williamson, Diego Melgar, Brendan W. Crowell, Diego Argas, Timothy I. Melbourne, Yong Wei, Kevin Kwong Aug 2020

Toward Near‐Field Tsunami Forecasting Along The Cascadia Subduction Zone Using Rapid Gnss Source Models, Amy L. Williamson, Diego Melgar, Brendan W. Crowell, Diego Argas, Timothy I. Melbourne, Yong Wei, Kevin Kwong

Geological Sciences Faculty Scholarship

Over the past 15 years and through multiple large and devastating earthquakes, tsunami warning systems have grown considerably in their efficacy in providing timely and accurate forecasts to affected communities. However, one part of tsunami warning that still needs improvement is forecasts catered to local, near‐field communities in the time after an earthquake rupture but before coastal inundation. In this study, we test a rapid, Global Navigation Satellite Systems (GNSS)‐driven earthquake characterization model using a large data set of synthetic megathrust ruptures for its near‐field tsunami forecasting potential. We also provide a framework for tsunami forecasting that focuses on the …


A Pulse-Decay Method For Low Permeability Analyses Of Granular Porous Media: Mathematical Solutions And Experimental Methodologies, Quinhong Hu Aug 2020

A Pulse-Decay Method For Low Permeability Analyses Of Granular Porous Media: Mathematical Solutions And Experimental Methodologies, Quinhong Hu

Earth & Environmental Sciences Datasets - Archive

This dataset is for a manuscript titled "A pulse-decay method for low permeability analyses of granular porous media: Mathematical solutions and experimental methodologies" being reviewed by Water Resources Research, a journal of American Geophysical Union and Wiley (2020-07-29)