Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Earth Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 10051 - 10080 of 17814

Full-Text Articles in Entire DC Network

Nitrous Oxide Emission And Methane Oxidation Potential In The Pastoral Soil Under Intensive Dairy Farm Management, Z. Li, F. M. Kelliher Aug 2020

Nitrous Oxide Emission And Methane Oxidation Potential In The Pastoral Soil Under Intensive Dairy Farm Management, Z. Li, F. M. Kelliher

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Different Land Use On Soil Organic Carbon And Microbial Biomass C In The Longzhong Part Of Loess Plateau, Xiaodong Li, Shifang Pei, Xudong Li, Ding Guo, Xiaoyu Dong, Hua Fu Aug 2020

Effects Of Different Land Use On Soil Organic Carbon And Microbial Biomass C In The Longzhong Part Of Loess Plateau, Xiaodong Li, Shifang Pei, Xudong Li, Ding Guo, Xiaoyu Dong, Hua Fu

IGC Proceedings (1977-2023)

No abstract provided.


Effect Of Molybdenum And Boron On Increasing Alfalfa Seed Yield, Ke Li, Jinzhong Zhu Aug 2020

Effect Of Molybdenum And Boron On Increasing Alfalfa Seed Yield, Ke Li, Jinzhong Zhu

IGC Proceedings (1977-2023)

No abstract provided.


No3- Uptake And Its Partitioning In Drought Stressed Perennial Ryegrass (Lolium Perenne L.), B. R. Lee, Y. L. Jin, M. Li, W. J. Jung, T. H. Kim Aug 2020

No3- Uptake And Its Partitioning In Drought Stressed Perennial Ryegrass (Lolium Perenne L.), B. R. Lee, Y. L. Jin, M. Li, W. J. Jung, T. H. Kim

IGC Proceedings (1977-2023)

No abstract provided.


Comparison Of Aggregates Content And Carbon Proportion Of Top Soil In Perennial Forage, Lu Chen, Yuying Shen, Jing Yang, Yining Niu Aug 2020

Comparison Of Aggregates Content And Carbon Proportion Of Top Soil In Perennial Forage, Lu Chen, Yuying Shen, Jing Yang, Yining Niu

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Liming And Nitrogen Application On The Cu, Mn, And Zn Concentrations In Herbage From Extensively Managed Pastures, Harald Laser Aug 2020

Effects Of Liming And Nitrogen Application On The Cu, Mn, And Zn Concentrations In Herbage From Extensively Managed Pastures, Harald Laser

IGC Proceedings (1977-2023)

No abstract provided.


Response Of Natural And Cultivated Hay Meadows To Fertilizer Applied By Small Scale Livestock Farmers In The Mountainous Sandzak Region Of Serbia, Ian R. Lane, M. V. Stosic, G. Topisirovic, S. Reynolds Aug 2020

Response Of Natural And Cultivated Hay Meadows To Fertilizer Applied By Small Scale Livestock Farmers In The Mountainous Sandzak Region Of Serbia, Ian R. Lane, M. V. Stosic, G. Topisirovic, S. Reynolds

IGC Proceedings (1977-2023)

No abstract provided.


Characteristics Of The Chemical Composition And Carbohydrate/Protein Fractions Along With The Growth Of Alkali‐Grass (Puccinellia Tenuiflora) As Feed For Ruminants, M. Kato, N. Ishikawa, K. Shimizu, W. Cao, M. Amari, O. Enishi, X. Yu, A. Xu Aug 2020

Characteristics Of The Chemical Composition And Carbohydrate/Protein Fractions Along With The Growth Of Alkali‐Grass (Puccinellia Tenuiflora) As Feed For Ruminants, M. Kato, N. Ishikawa, K. Shimizu, W. Cao, M. Amari, O. Enishi, X. Yu, A. Xu

IGC Proceedings (1977-2023)

No abstract provided.


Using Climate To Explain And Predict West Nile Virus Risk In Nebraska, Kelly Helm Smith, Andrew J. Tyre, Jeff Hamik, Michael J. Hayes, Yuzhen Zhou, Li Dai Aug 2020

Using Climate To Explain And Predict West Nile Virus Risk In Nebraska, Kelly Helm Smith, Andrew J. Tyre, Jeff Hamik, Michael J. Hayes, Yuzhen Zhou, Li Dai

National Drought Mitigation Center: Faculty Publications

We used monthly precipitation and temperature data to give early warning of years with higher West Nile Virus (WNV) risk in Nebraska. We used generalized additive models with a negative binomial distribution and smoothing curves to identify combinations of extremes and timing that had the most influence, experimenting with all combinations of temperature and drought data, lagged by 12, 18, 24, 30, and 36 months. We fit models on data from 2002 through 2011, used Akaike's Information Criterion (AIC) to select the best‐fitting model, and used 2012 as out‐of‐sample data for prediction, and repeated this process for each successive year, …


Imidacloprid Movement Into Fungal Conidia Is Lethal To Mycophagous Beetles, Robin A. Choudhury, Andrew M. Sutherland, Matt J. Hengel, Michael P. Parrella, W. Douglass Gubler Aug 2020

Imidacloprid Movement Into Fungal Conidia Is Lethal To Mycophagous Beetles, Robin A. Choudhury, Andrew M. Sutherland, Matt J. Hengel, Michael P. Parrella, W. Douglass Gubler

School of Earth, Environmental, & Marine Sciences Faculty Publications

Applications of systemic pesticides can have unexpected direct and indirect effects on nontarget organisms, producing ecosystem-level impacts. We investigated whether a systemic insecticide (imidacloprid) could be absorbed by a plant pathogenic fungus infecting treated plants and whether the absorbed levels were high enough to have detrimental effects on the survival of a mycophagous beetle. Beetle larvae fed on these fungi were used to assess the survival effects of powdery mildew and imidacloprid in a factorial design. Fungal conidia were collected from treated and untreated plants and were tested for the presence and concentration of imidacloprid. The survival of beetles fed …


Nutrient Dynamics In A Semi‐Arid Grazing Land Of Southern India, K. Karunaichamy, Kailash Paliwal Aug 2020

Nutrient Dynamics In A Semi‐Arid Grazing Land Of Southern India, K. Karunaichamy, Kailash Paliwal

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Grazing On Am Colonization And Spore Density In Arid Grasslands Of Loess Plateau, Liang Jin, Chang Wang, Fujiang Hou, Shenghua Chang, Guiqi Zhang, Xiaojuan Wang Aug 2020

Effects Of Grazing On Am Colonization And Spore Density In Arid Grasslands Of Loess Plateau, Liang Jin, Chang Wang, Fujiang Hou, Shenghua Chang, Guiqi Zhang, Xiaojuan Wang

IGC Proceedings (1977-2023)

No abstract provided.


P And K Effects On N Partitioning During Regrowth Of Italian Ryegrass, Y. L. Jin, B. R. Lee, M. Li, W. J. Jung, T. H. Kim Aug 2020

P And K Effects On N Partitioning During Regrowth Of Italian Ryegrass, Y. L. Jin, B. R. Lee, M. Li, W. J. Jung, T. H. Kim

IGC Proceedings (1977-2023)

No abstract provided.


Impacts Of Long‐Term Enclosure On Soil Microbes In Mountain‐Pasture In Bayinbuluke, Ping'an Jiang Aug 2020

Impacts Of Long‐Term Enclosure On Soil Microbes In Mountain‐Pasture In Bayinbuluke, Ping'an Jiang

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Phosphate Fertilizer On Regrowth Of Medicago Sativa After Defoliation, Huixin Jiang, Yixin Shen, Guiyu Zhai Aug 2020

Effects Of Phosphate Fertilizer On Regrowth Of Medicago Sativa After Defoliation, Huixin Jiang, Yixin Shen, Guiyu Zhai

IGC Proceedings (1977-2023)

No abstract provided.


Caucasian Clover (Trifolium Ambiguum) Is Persistent In New Zealand Montane, Improved Rangeland But Requires Regular Sulphur Application For Productivity, P. Jarvis, R. J. Lucas, J. R. Sedcole Aug 2020

Caucasian Clover (Trifolium Ambiguum) Is Persistent In New Zealand Montane, Improved Rangeland But Requires Regular Sulphur Application For Productivity, P. Jarvis, R. J. Lucas, J. R. Sedcole

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Cultivation Of Puccinellia Tenuiflora On The Chemical And Physical Characteristics Of Alkalinized Soil In Western Areas Of Jilin, N. Ishikawa, M. Kato, K. Shimizu, M. Amari, W. Cao, X. Yu, A. Xu Aug 2020

Effects Of Cultivation Of Puccinellia Tenuiflora On The Chemical And Physical Characteristics Of Alkalinized Soil In Western Areas Of Jilin, N. Ishikawa, M. Kato, K. Shimizu, M. Amari, W. Cao, X. Yu, A. Xu

IGC Proceedings (1977-2023)

No abstract provided.


Yield Trends And Soil Mineral Changes In Three Summer Winter Forage Cropping Systems For 5 Consecutive Years In Southern Kyushu, Japan, Sachiko Idota, Yasuyuki Ishii Aug 2020

Yield Trends And Soil Mineral Changes In Three Summer Winter Forage Cropping Systems For 5 Consecutive Years In Southern Kyushu, Japan, Sachiko Idota, Yasuyuki Ishii

IGC Proceedings (1977-2023)

No abstract provided.


Correction Of Sulphur Deficiency On Naturalized Pastures Of Western Patagonia (Chile), Christian Hepp Aug 2020

Correction Of Sulphur Deficiency On Naturalized Pastures Of Western Patagonia (Chile), Christian Hepp

IGC Proceedings (1977-2023)

No abstract provided.


Root Development Of Three Commercial Forage Pigeon‐Pea Cultivars In Artificially Compacted Soil, Rodolfo Godoy, Osny Oliveira Santos Bacchi, Patrícia Menezes Santos, Fernando De Almeida Moreira Aug 2020

Root Development Of Three Commercial Forage Pigeon‐Pea Cultivars In Artificially Compacted Soil, Rodolfo Godoy, Osny Oliveira Santos Bacchi, Patrícia Menezes Santos, Fernando De Almeida Moreira

IGC Proceedings (1977-2023)

No abstract provided.


Selection Of Forage Pigeon‐Pea (Cajanus Cajan (L.) Millsp) Lines For Soil Decompaction, Rodolfo Godoy, Osny Oliveira Santos Bacchi, Patrícia Menezes Santos, Fernando De Almeida Moreira Aug 2020

Selection Of Forage Pigeon‐Pea (Cajanus Cajan (L.) Millsp) Lines For Soil Decompaction, Rodolfo Godoy, Osny Oliveira Santos Bacchi, Patrícia Menezes Santos, Fernando De Almeida Moreira

IGC Proceedings (1977-2023)

No abstract provided.


Geology, Soils And Climate Of The Margaret River Wine Region, Peter J. Tille, Angela Stuart-Street, Peter S. Gardiner Aug 2020

Geology, Soils And Climate Of The Margaret River Wine Region, Peter J. Tille, Angela Stuart-Street, Peter S. Gardiner

All other publications

This report is an extract from the broader description and analysis of the Geology, soils and climate of Western Australia's wine regions. It expands on the brief descriptions in the second edition of 'Viticulture' (Coombe & Dry 2004) concerning the soils and landscapes of Western Australia’s main wine growing regions. We have tailored this report extract to the specific needs of the Margaret River wine region. It contains local soil names and soil-landscape zones and systems maps.

The wine industry recognises the importance of giving customers an understanding of the vines’ environment and how that may influence wine character …


Variability And Temporal Trends Of Semivolatile Organic Compounds In Biological And Environmental Media, Kyunghoon Kim Aug 2020

Variability And Temporal Trends Of Semivolatile Organic Compounds In Biological And Environmental Media, Kyunghoon Kim

Earth & Environmental Sciences Dissertations - Archive

Exposure to semivolatile organic compounds (SVOCs) in indoor environments and its potential impact on human health have been receiving increased public attention, because people in developed countries spend over 80% of their time indoors, SVOC levels are several orders of magnitude higher indoors than outdoors, and many SVOCs have various toxicities and endocrine disrupting potential. Concentrations of SVOCs in biological (e.g., human serum) and environmental (e.g., household dust, indoor air) media can help us better understand human exposure to SVOCs. For example, SVOC concentrations in biological media collected over several years may shed light on temporal trends of exposure due …


Joint Use Of Advanced Oxidation Process (Aop) And Advanced Reduction Process (Arp) For Alleviation Of Leachate Organic Matter (Lom), Ali Albalgane Aug 2020

Joint Use Of Advanced Oxidation Process (Aop) And Advanced Reduction Process (Arp) For Alleviation Of Leachate Organic Matter (Lom), Ali Albalgane

Theses, Dissertations and Culminating Projects

Landfilling is the dominant municipal solid waste (MSW) management option in the United States and many other countries. Leachate management and treatment represent an essential component in sustainable management of landfills. However, leachate organic matter (LOM) present in landfill leachate challenges existing treatment practices. The long-term goal of this study is to develop innovative treatment technologies for mitigation of LOM impacts for supporting sustainability in waste management and wastewater treatment. The overall objective of this thesis research aimed to investigate technical performance of the joint use of advanced oxidation process (AOP) and advanced reduction process (ARP) for treatment of mature …


Paleoenvironment Reconstruction Of The Eocene Southeastern Tethys Using Geochemistry Of Sedimentary Rocks, Liliana CalderóN Convers Aug 2020

Paleoenvironment Reconstruction Of The Eocene Southeastern Tethys Using Geochemistry Of Sedimentary Rocks, Liliana CalderóN Convers

Theses, Dissertations and Culminating Projects

The Early Eocene hyperthermals are a series of transient global warming events that occurred between 54.09 and 52.63 Ma, and are considered as ancient analogues for future climate change. These hyperthermal events are well studied in the deep sea sites, but have not been investigated in the eastern Tethys Ocean. Here, we report new major and trace element geochemistry and stable carbon isotope data of the Early Eocene strata deposited in a shallow marine foreland basin prior to the main stage of India-Asian continent collision at Qumiba section in the Tingri County, southern Tibet. These geochemical data are used to …


Water Quality And Management Challenges In Urban New Jersey, Alessandra Rossi Aug 2020

Water Quality And Management Challenges In Urban New Jersey, Alessandra Rossi

Theses, Dissertations and Culminating Projects

Exacerbation of extreme weather events and increasing urbanization are facilitating the pathway of pollutants towards the waterbodies with freshwater ecosystems being impacted more than terrestrial and marine ecosystems by anthropogenic stressors. We addressed here the three major threats to freshwater ecosystems, pathogens, litter, and eutrophication, integrating scientific findings with management inputs at the watershed level. We evaluated the relationship between environmental variables measurements and Escherichia coli counts with the intent to develop equations capable of predicting near-real-time E. coli concentrations in two riverine ecosystems to help decision makers in assessments of recreational safety. Results showed that the cumulative rainfall for …


The Legacy Of Mining In Southwest Missouri: Past And Present Conditions Of The Tri-State Mining District, Anastasia M C Mcclanahan Aug 2020

The Legacy Of Mining In Southwest Missouri: Past And Present Conditions Of The Tri-State Mining District, Anastasia M C Mcclanahan

Graduate Theses/Dissertations

The historic Tri-State Mining District (TSMD) of southwestern Missouri, southeastern Kansas, and northeastern Oklahoma has a history of lead and zinc mining that extended over a hundred years. During the district’s peak production period, the TSMD was one of the world’s largest producers of lead and zinc. The mining activities in the TSMD produced economic growth that supported the local communities and were essential to the victory of the Allied Forces during World War I and World War II. Beginning in the 1920s, the mining activities in the district slowly began to cease due to depletion of metal ores and …


Evaluating Particulate Matter 2.5 In The Yangtze River Delta, Muhammad Abdullah Aug 2020

Evaluating Particulate Matter 2.5 In The Yangtze River Delta, Muhammad Abdullah

Graduate Theses/Dissertations

Particulate Matter 2.5 (PM2.5) is a growing concern in industrialized countries. In China, high concentrations of PM2.5 are causing devastating health and environmental effects for the people living there. Coal-burning for domestic and industrial purposes is the main culprit for decreasing air quality in China. The focus of this paper is on the Yangtze River Delta (YRD) located on the eastern coast of China. Hourly PM2.5 readings from March 2015 to June 2016 were obtained from 125 air quality monitoring stations (AQMS) in 23 cities in the YRD. In this study, PM2.5 readings were examined …


Assessment Of Unmanned Aerial Systems (Uas) Surveys In Dryland Ecosystems: Estimates Of Fractional Photosynthetic Cover And Plant Functional Types, Anna V. Roser Aug 2020

Assessment Of Unmanned Aerial Systems (Uas) Surveys In Dryland Ecosystems: Estimates Of Fractional Photosynthetic Cover And Plant Functional Types, Anna V. Roser

Boise State University Theses and Dissertations

Drylands cover 41% of the global land surface and provide ecosystem services to 38% of the world’s population. Dryland ecosystems have already been degraded or threatened by the increased rates of wildfire and invasive annual grasses, as well as changes in precipitation patterns. We cannot protect, mitigate, or restore drylands without comprehensive vegetation surveys. To understand ecosystem processes, we need to know the composition of vegetation at the patch and plant scales. Field observations are limited in coverage, and are expensive and time intensive. Data from Unmanned Aircraft Systems (UAS) will fill the niche between field data and medium scale …


A Sense Of Scale: Mapping Exotic Annual Grasses With Satellite Imagery Across A Landscape And Quantifying Their Biomass At A Plot Level With Structure-From-Motion In A Semi-Arid Ecosystem, Monica Vermillion Aug 2020

A Sense Of Scale: Mapping Exotic Annual Grasses With Satellite Imagery Across A Landscape And Quantifying Their Biomass At A Plot Level With Structure-From-Motion In A Semi-Arid Ecosystem, Monica Vermillion

Boise State University Theses and Dissertations

The native vegetation communities in the sagebrush steppe, a semi-arid ecosystem type, are under threat from exotic annual grasses. Exotic annual grasses increase fire severity and frequency, decrease biodiversity, and reduce soil carbon storage amongst other ecosystem services. The invasion of exotic annual grasses is causing detrimental impacts to land use by eliminating forage for livestock and creating a huge economic cost from fire control and post-fire restoration. To combat invasion, land managers need to know what exotic annual grasses are present, where they are invading, and estimates of their biomass. Mapping exotic annual grasses is challenging because many areas …