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Articles 691 - 720 of 11528
Full-Text Articles in Life Sciences
Physiological And Biochemical Responses Of Maize (Zea Mays L.) Cultivars Under Salinity Stress, Nosheen Iftikhar, Shagufta Perveen, Baber Ali, Muhammad Hamzah Saleem, Mohammad Khalid Al-Sadoon
Physiological And Biochemical Responses Of Maize (Zea Mays L.) Cultivars Under Salinity Stress, Nosheen Iftikhar, Shagufta Perveen, Baber Ali, Muhammad Hamzah Saleem, Mohammad Khalid Al-Sadoon
Turkish Journal of Agriculture and Forestry
Salt stress is a serious threatening factor for cereal crops such as maize (Zea mays L.) by affecting their growth and development. In the current era, the requirement for staple crops is increasing, so it is important to screen out salt-tolerant genotypes. For this purpose, a pot experiment was designed within three replications on ten different genotypes of the maize. The plants were planted in plastic pots and salt stress (0, 40, 70, 100 mM) was maintained. The salt stress induced a noticeable reduction in plant growth traits (shoot length, root length, shoot, root fresh and dry weight, and leaf …
Comparative Analysis Of Closed Hydroponic Systems And Planting Seasons For Lettuces, Demet Çeki̇n, Mostafa Hassanen, Mariam Hassanen, Nayira Hassan, Ricarda Lothmann, Hani Sewilam
Comparative Analysis Of Closed Hydroponic Systems And Planting Seasons For Lettuces, Demet Çeki̇n, Mostafa Hassanen, Mariam Hassanen, Nayira Hassan, Ricarda Lothmann, Hani Sewilam
Turkish Journal of Agriculture and Forestry
Hydroponic cultivation techniques offer innovative solutions to address challenges in conventional agriculture, such as soil infertility, disease outbreaks, and poor drainage. This study focuses on comparing the performance of different closed hydroponic systems for lettuce cultivation across distinct winter and summer planting seasons. Four closed hydroponic systems—Deep Water Culture (DWC), Nutrient Film Technique (NFT), Media-bed system (MB), and Sandponic (SP)—were evaluated for their impact on vegetative growth parameters, leaf nutrient content, chlorophyll and carotene levels, and water consumption. Our findings reveal that the DWC and NFT systems exhibited greater yield increases in winter (81.90% and 75.64%, respectively) and in summer …
Evaluation Of Arginine Decarboxylase (Fvadc) And Spermidine Synthase (Fvspds) Genes Of Woodland Strawberry (Fragaria Vesca L.) In Nicotiana Tabacum, Ákos Mendel, Erzsebet Kiss
Evaluation Of Arginine Decarboxylase (Fvadc) And Spermidine Synthase (Fvspds) Genes Of Woodland Strawberry (Fragaria Vesca L.) In Nicotiana Tabacum, Ákos Mendel, Erzsebet Kiss
Turkish Journal of Agriculture and Forestry
A comparative analysis was performed under in vitro conditions using Nicotiana tabacum lines overexpressing the genes of arginine decarboxylase (FvADC) and spermidine synthase (FvSPDS) enzymes. The transgenic and native lines were tested under controlled conditions and exposed to long-term treatment of arginine (150 mg/L), putrescine (10 mg/L), and spermidine (10 mg/L). Chlorophyll and lignin contents of the samples were measured spectrophotometrically, while proline, putrescine, spermidine, and spermine contents were determined using high-performance liquid chromatography methods. The experimental results showed that the arginine decarboxylase enzyme affects polyamine metabolism. As it is involved in several other biosynthetic pathways, this effect is significant …
Local Organic And Inorganic Amendments To Improve Table Grape Production In Mediterranean Vineyards Of Southern Türkiye, Semi̇h Tangolar, Simone Priori, Serpi̇l Tangolar, Meti̇n Turan, Erhan Akça
Local Organic And Inorganic Amendments To Improve Table Grape Production In Mediterranean Vineyards Of Southern Türkiye, Semi̇h Tangolar, Simone Priori, Serpi̇l Tangolar, Meti̇n Turan, Erhan Akça
Turkish Journal of Agriculture and Forestry
In the Mediterranean Region, calcareous soils are generally considered to be of low fertility. The use of large amounts of chemicals and irrigation to compensate for low productivity reduces the producer’s net profit and degrades physical and chemical properties of the soils. As a result, the selection of adaptable genotypes is important in agriculturally limited lands. Grapevine is one of the leading crops in the Mediterranean Basin due to its high tolerance to abiotic conditions. However, the fact that the grapevine grows in extreme soils does not mean that such crop does not respond to a good nutritional program, especially …
Using Computational Modeling To Design Antiviral Strategies And Understand Plant-Virus Interactions, Hira Kamal, Muhammad Mubashar Zafar, Abdul Razzaq, Aqsa Ijaz, Zunaira Anvar, Hayat Topçu, Khalid M. Elhindi, Asif Saeed, Urooj Fatima, Xuefei Jiang
Using Computational Modeling To Design Antiviral Strategies And Understand Plant-Virus Interactions, Hira Kamal, Muhammad Mubashar Zafar, Abdul Razzaq, Aqsa Ijaz, Zunaira Anvar, Hayat Topçu, Khalid M. Elhindi, Asif Saeed, Urooj Fatima, Xuefei Jiang
Turkish Journal of Agriculture and Forestry
Using a bioinformatics approach to identify binding pockets between proteins is a preferable method before modifying the genome to delineate host interactions with viruses. Based on extensive proteomics data in numerous databases, several interaction prediction methods are available to identify binding sites between viruses and hosts at the individual residue level, but little is known about the interaction prediction strategy for plant viruses. Begomoviruses, belonging to the family Geminiviridae, constitute a group of circular single-stranded (ss) DNA viruses that encode multifunctional proteins responsible for viral replication, causing severe diseases in multiple host plants. These viruses usually escape through plant defense …
Eco-Friendly Management Of Helicoverpa Armigera Using Entomopathogenic Fungi: A Sustainable Approach, Hafiz Husnain Nawaz, Gülşah Kekli̇k, Yamin Bibi, Javed Iqbal, Attiq Ur Rehman, Mubashar Hussain, Shahzad Toufeeq, Rashid Azad, Khalid Ali Khan, Abid Farid, Abdul Qayyum
Eco-Friendly Management Of Helicoverpa Armigera Using Entomopathogenic Fungi: A Sustainable Approach, Hafiz Husnain Nawaz, Gülşah Kekli̇k, Yamin Bibi, Javed Iqbal, Attiq Ur Rehman, Mubashar Hussain, Shahzad Toufeeq, Rashid Azad, Khalid Ali Khan, Abid Farid, Abdul Qayyum
Turkish Journal of Agriculture and Forestry
Helicoverpa armigera Hübner, 1808 (Noctuidae; Lepidoptera) is one of the major pest problems causing production constraints in both conventional and organic agricultural systems. Chemical and semichemical, along with biotechnological approaches, like the sterile insect technique, are used to manage pest populations. However, these methods raise environmental concerns. Therefore, the current study was undertaken to assess the biocontrol potential of the entomopathogenic fungal strains Beauveria bassiana, Metarhizium anisopliae, Akanthomyces lecanii, and Purpureocillium lilacinus against H. armigera. These strains, identified through morphological and molecular techniques, were evaluated for their effectiveness in controlling H. armigera. A total of eight fungal strains were identified …
Soil And Organic Carbon Losses By Water Erosion In Coffee-Growing Areas In Southern Minas Gerais, Brazil, Derielsen Brandão Santana, Guilherme Da Silva Rios, Guilherme Henrique Expedito Lense, Felipe Gomes Rubira, Flávio Roberto Araújo Franceschi, Velibor Spalevic, Joaquim Ernesto Bernardes Ayer, Ronaldo Luiz Mincato
Soil And Organic Carbon Losses By Water Erosion In Coffee-Growing Areas In Southern Minas Gerais, Brazil, Derielsen Brandão Santana, Guilherme Da Silva Rios, Guilherme Henrique Expedito Lense, Felipe Gomes Rubira, Flávio Roberto Araújo Franceschi, Velibor Spalevic, Joaquim Ernesto Bernardes Ayer, Ronaldo Luiz Mincato
Turkish Journal of Agriculture and Forestry
Organic carbon performs essential functions in soils. Soils act as sources or sinks of atmospheric organic carbon. Agricultural management influences soil organic carbon, impacting climate change. One of the crops most vulnerable to climate change is coffee. Brazil is the world's largest coffee producer, with a predominance of management under a conventional system, with sloping terrain and the absence of conservationist practices. The absence of conservationist practices results in an increase in soil loss rates due to water management and carbon emissions, as well as a reduction in coffee production. This paper aimed to estimate soil and organic carbon losses …
Effects Of Nutrient Solution Strength, Pgpb, And Mycorrhizal Inoculation On Growth,Yield, And Quality Of Strawberry, Masoud Haghshenas, Sander H. Van Delden, Mohammad Javad Nazarideljou
Effects Of Nutrient Solution Strength, Pgpb, And Mycorrhizal Inoculation On Growth,Yield, And Quality Of Strawberry, Masoud Haghshenas, Sander H. Van Delden, Mohammad Javad Nazarideljou
Turkish Journal of Agriculture and Forestry
Strawberry (Fragaria × ananassa Duch) cultivation is not without difficulty since its root environment is sensitive to many biotic and abiotic stresses. In addition, production is often phosphate limited, even at relatively high phosphorus levels, as the high fruit yields greatly exceed the capacity of the phosphorus supply by the root system. Arbuscular mycorrhizal fungi (AMF), plant growth promoting bacteria (PGPB), and combinations of both are known to mitigate stress and enhance nutrient uptake, particularly phosphorus. Therefore, we studied the effects of AMF (Glomus mosseae, and Glomus intraradices), PGPB (Azospirillum lipoferum DSM1691, and Pseudomonas fluorescens DSM 50090), and their combinations …
Elucidating Melatonin-Mediated Distinct Mechanistic Of Specific Gene Expression Of Coriander (Coriandrum Sativum L.) Under Chromium Stress, Arwa Abdulkreem Al-Huqail, Suliman Mohammed Suliman Alghanem, Haifa Abdulaziz Sakit Alhaithloul, Nayab Naeem, Wajiha Sarfraz, Noreen Khalid, Baber Ali
Elucidating Melatonin-Mediated Distinct Mechanistic Of Specific Gene Expression Of Coriander (Coriandrum Sativum L.) Under Chromium Stress, Arwa Abdulkreem Al-Huqail, Suliman Mohammed Suliman Alghanem, Haifa Abdulaziz Sakit Alhaithloul, Nayab Naeem, Wajiha Sarfraz, Noreen Khalid, Baber Ali
Turkish Journal of Agriculture and Forestry
The current investigation demonstrates that the application of MEL (0, 1 and 2 µmol L−1) mitigates the effects of Cr stress 0 (no Cr), 50 and 100 mg kg−1 on coriander (Coriandrum sativum L.) plants. Results from the present study showed that the increasing levels of Cr concentration in the soil induced a significant decrease in shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, chlorophyll-a, chlorophyll-b, total chlorophyll, carotenoid contents, net photosynthesis, transpiration rate and stomatal conductance by 36%, 24%, 17%, 64%, 27%, 23%, 19%, 29%, 36%, 18%, 73%, 83% and 43% …
Photovoltaic Fault Detection Based On Infrared And Visible Image Augmentation And Fusion, Xuewei Chao, Lixin Zhang, Yang Li, Chao Huang, Jing Li
Photovoltaic Fault Detection Based On Infrared And Visible Image Augmentation And Fusion, Xuewei Chao, Lixin Zhang, Yang Li, Chao Huang, Jing Li
Turkish Journal of Agriculture and Forestry
The rapid development of the agricultural photovoltaic integration model holds significant importance in improving land utilization and green energy economic benefits. However, due to the harsh working environment and prolonged exposure to natural conditions, photovoltaic (PV) components are prone to hot spot faults, leading to severe consequences. In this article, we propose a fine-grained PV hot spot fault detection framework based on the fusion of infrared and visible light images, addressing various factors that contribute to hot spot faults. Firstly, multiple sets of infrared and visible light image pairs under different hot spot fault conditions are collected. We employ generative …
Underutilized Edible Fruit Species Of The Indo-Gangetic Plains: A Systematic Review For Food Security And Land Degradation Neutrality, Dinesha S, Rakesh S, Deepranjan Sarkar, Prakash Kumar Jha, Raghupathi Balasani, Shikha ., Saswat Kumar Kar, Vishal Seth, Amitava Rakshit, Rahul Datta, Sezai̇ Erci̇şli̇
Underutilized Edible Fruit Species Of The Indo-Gangetic Plains: A Systematic Review For Food Security And Land Degradation Neutrality, Dinesha S, Rakesh S, Deepranjan Sarkar, Prakash Kumar Jha, Raghupathi Balasani, Shikha ., Saswat Kumar Kar, Vishal Seth, Amitava Rakshit, Rahul Datta, Sezai̇ Erci̇şli̇
Turkish Journal of Agriculture and Forestry
Many underutilized edible fruit species (UEFS) are found in the Indo-Gangetic Plains (IGP), which support food security (FS) for many other dependent communities as well as the indigenous people. Unfortunately, there is little study and fragmented information available about these naturally edible products. The UEFS of the IGP was the subject of a systematic review utilizing the PRISMA Protocol, which produced implications for FS and land degradation neutrality (LDN). This review aims to survey, summarize, and annotate the published information about the angiosperms native and naturalized UEFS of IGP to identify and make use of this species, particularly for the …
Smokejumper Obituary: Mciver, Roderick E. “Rod” (Missoula 1964), National Smokejumper Association
Smokejumper Obituary: Mciver, Roderick E. “Rod” (Missoula 1964), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Charles H. Schaffer: “Alger County Charcoal King”, Thomas J. Straka
Charles H. Schaffer: “Alger County Charcoal King”, Thomas J. Straka
Upper Country: A Journal of the Lake Superior Region
One of Michigan’s Upper Peninsula’s earliest industries was iron production. Iron furnaces (smelters) were part of that industry; these were primarily fueled by charcoal, produced in hundreds of charcoal kilns scattered across the Upper Peninsula. Charcoal burning was a major industry in its own right, and one person, Charles H. Schaffer, came to dominate it, earning the name “Alger County Charcoal King.” His empire began when the Detroit, Mackinac and Marquette Railroad expanded east from Marquette and was centered on charcoal kilns at the Onota station in Alger County. When wood supplies near Lake Superior declined, he expanded his charcoal …
Education And Land Management On The Pacific Crest Trail Phase 4, Ben Sherman, Emma Perry, Cade Cappello, Hattie Cahill, Anna Macklyn, Aidan Tull, Tristian Xu, Augrey Gregg
Education And Land Management On The Pacific Crest Trail Phase 4, Ben Sherman, Emma Perry, Cade Cappello, Hattie Cahill, Anna Macklyn, Aidan Tull, Tristian Xu, Augrey Gregg
Baker/Koob Endowments Awarded Projects
This research is a continuation of research collected on the Pacific Crest Trail (PCT). The purpose of this study was to investigate land ethics and education, Leave No Trace principles, and hiker experiences on the PCT. From July 2023-January 2024, interdisciplinary students collected qualitative and quantitative data through interviews and surveys with hikers on the trail. Past phases of this project have determined that this research is necessary, but due to Covid, the team has only been able to gather data remotely via online surveys and interviews prior to this study. The Baker Koob grant funded travel and research equipment …
Non-Native Invasive Earthworms In The Midwest And Eastern United States: A Primer, Adrienne B. Keller, Stephen Handler
Non-Native Invasive Earthworms In The Midwest And Eastern United States: A Primer, Adrienne B. Keller, Stephen Handler
Michigan Tech Publications
Prior to European settlement, earthworms were rare across most of the Midwest and Eastern United States (James 1995). This is presumably because earthworms were slow to recolonize after the last glacial period. Currently, earthworms of European and Asian origin are invading this region with demonstrable effects on soil characteristics and ecosystem functions. Eradicating non-native invasive earthworms (hereafter, “earthworms”) is generally not a realistic management goal. Still, understanding how earthworms act as ecosystem engineers will aid land managers in considering how earthworms modify local effects of climate change and management actions on natural ecosystems. Additionally, where earthworms have not yet invaded, …
Soil Organic Carbon In Temperate Managed Ecosystems : A Primer, Adrienne B. Keller, Stephen D. Handler
Soil Organic Carbon In Temperate Managed Ecosystems : A Primer, Adrienne B. Keller, Stephen D. Handler
Michigan Tech Publications
Soils store more carbon than the atmosphere and vegetation combined, an impressive fact that underscores the importance of considering soils when managing for ecosystem carbon. Not only do soils store vast amounts of carbon, but soil carbon also persists in the ecosystem for much longer than other pools of carbon. This primer is an introduction to soil organic carbon storage, sequestration, and cycling in terrestrial managed ecosystems. The effects of site factors, climate change, and management on soil carbon are discussed.
Aspen As Firebreaks At The Development Fringe, Kevin Krasnow, Paul C. Rogers
Aspen As Firebreaks At The Development Fringe, Kevin Krasnow, Paul C. Rogers
Aspen Bibliography
Quaking aspen (Populus tremuloides) forests are widely known and prized for their numerous values—biodiversity, habitat, forage, recreation, aesthetics, and others—including as a deterrent to wildfire. This reputation for stopping or slowing flames is explored here, alongside measures that may be taken to facilitate thriving aspen communities near human developments. It is clear that science supporting the premise of aspen as an effective firebreak is far from complete. Yet, how can we benefit from what we do know on this topic to increase the probability of preventing structural fire damage, while also encouraging the valued characteristics of aspen ecosystems?
Climate Considerations For Quaking Aspen Conservation, Douglas Shinneman, Susan Mcilroy, Paul C. Rogers
Climate Considerations For Quaking Aspen Conservation, Douglas Shinneman, Susan Mcilroy, Paul C. Rogers
Aspen Bibliography
Human-caused climate change alters ecosystem processes ranging from local to global scales. As a consequence of climate change we should expect increased rates and intensities of disturbance events. Though we are only beginning to understand what those impacts might be to aspen forests and their diverse plant and animal assemblages, recent science suggests there may be unavoidable effects. In the face of anticipated climate-ecosystem challenges, contemporary managers are searching for guidance on preserving aspen resilience. We suggest crafting strategic yet cautious approaches to minimize effects and facilitate broad resilience. For instance, monitoring conditions in and near aspen forests will help …
The Synthesis, Characterization, And Application Of Polysaccharide-Based Additive To Improve Wet And Dry Strength And High-Barrier Properties Of Paper Products, Cornellius Marcello
The Synthesis, Characterization, And Application Of Polysaccharide-Based Additive To Improve Wet And Dry Strength And High-Barrier Properties Of Paper Products, Cornellius Marcello
Dissertations
Paper products play an essential role in our daily lives owing to their low cost, environment-friendly character, renewability, and recyclability. Paper manufacturers have been using petroleum-based strength additives (cPAM, GPAM, PAE) to meet the perceived needs of customers. On the other hand, paper produced from cellulose is hydrophilic and porous, leading to shallow water and grease resistance, causing paper manufacturers to use many kinds of coating materials such as poly-fluoroalkyl substances (PFAS) and synthetic plastic to improve water resistance, especially for food packaging paper products like cups, plates, food boxes, and packaging. However, PFAS are identified as likely carcinogenic to …
Du Undergraduate Showcase Abstracts: Research, Scholarship, And Creative Works, August Alexander, Kevin Summers, E. Paige Lloyd, Alyssa Aragon, Lauren Wols, Erica Larson, Colton Arciniaga, Lily Baeza, Ellie Barnett-Cashman, Sidney Barbier, Maverick Bartholomew, Ryan Bell, Trevor Briggs, Amanda Brown, Cory Marchi, Maddy Pontius, Jennifer Gallagher, Claire Kwok, Channing Bullock, Alex Mccollister, Kim Gorgens, Daniela Chavez, Yamilet Espinoza Nuñez, Giovanni Valladares Giron, William Christensen, Olivia Kachulis, Daniel Cierasynski, Brandon Cohen, Spenser Dobbs, Lindsay Goolsby, Noah Craver, Nyah Cubbison, Liam Doherty, Nicole Doris, Yan Qin, Alexander Nguyen, Lily Harmon, Shubh Todi, Naichen Zhao, Noah Fagello, Stacia Fritz, Paola Gascot-Chinea, Alex Volkova, Janelyn Geronimo, Elsie Harrington, Shane Simmons, Clarice Hise, Laura Moreno Palmer, Henry Xu, Yesu Leela Pasupula, Emily Fisher, Zachary Hogan, Colin Kleckner, Alyssa Knaus, Erin Kubat, Sam Werkema, Katie Lamberton, Lilliya Larson, Allie Leary, Vanessa Leon-Gamez, James H. Gallagher, E. Dale Broder, Robin M. Tinghitella, Emma Loeber, Alina Mali, Ixchel Marquez, Lauren Mcgrath, Ella Matthews, Grace Naegelen, Audrey Ng, Megan Lucyshyn, Rachel Brough, Alexandra Norman, Joe Ontiveros Rodriguez, Ben Dossett, Ori Miller, Janamejay Sharma, Christopher Reardon, Vincent Pandey, Regan Parish, Ren Pratt, Alisha Pravasi, Sanchari Das, Cari Reichel, Emma Robson, Victoria Rockwell, Jayce Rumsey, Steven Said, Norah Schroder, Alaina Smith, Shannon Murphy, Shujan A. Sharafeldeen, Stanley M. Kanai, James T. Nichols, David E. Clouthier, Macalia R. Augustus, Daniel Silva Rios, Scott Simpson, Anna Sparling, Chase Spurbeck, Kimberly Chiew, Christine Stadnik-Poteroba, Jacqueline Stephenson, Evelyn Stovin, Mia Supan, Lauren Tapper, Will Thrush, Anna Vogt, Michaela Walheim, Jon Weber, Hunter Whitehouse, Kansas Wood, Hayley Sayre, Lydia Mccann, Maread Mclaughlin, Kelly Krumrie, Olivia Wuttke
Du Undergraduate Showcase Abstracts: Research, Scholarship, And Creative Works, August Alexander, Kevin Summers, E. Paige Lloyd, Alyssa Aragon, Lauren Wols, Erica Larson, Colton Arciniaga, Lily Baeza, Ellie Barnett-Cashman, Sidney Barbier, Maverick Bartholomew, Ryan Bell, Trevor Briggs, Amanda Brown, Cory Marchi, Maddy Pontius, Jennifer Gallagher, Claire Kwok, Channing Bullock, Alex Mccollister, Kim Gorgens, Daniela Chavez, Yamilet Espinoza Nuñez, Giovanni Valladares Giron, William Christensen, Olivia Kachulis, Daniel Cierasynski, Brandon Cohen, Spenser Dobbs, Lindsay Goolsby, Noah Craver, Nyah Cubbison, Liam Doherty, Nicole Doris, Yan Qin, Alexander Nguyen, Lily Harmon, Shubh Todi, Naichen Zhao, Noah Fagello, Stacia Fritz, Paola Gascot-Chinea, Alex Volkova, Janelyn Geronimo, Elsie Harrington, Shane Simmons, Clarice Hise, Laura Moreno Palmer, Henry Xu, Yesu Leela Pasupula, Emily Fisher, Zachary Hogan, Colin Kleckner, Alyssa Knaus, Erin Kubat, Sam Werkema, Katie Lamberton, Lilliya Larson, Allie Leary, Vanessa Leon-Gamez, James H. Gallagher, E. Dale Broder, Robin M. Tinghitella, Emma Loeber, Alina Mali, Ixchel Marquez, Lauren Mcgrath, Ella Matthews, Grace Naegelen, Audrey Ng, Megan Lucyshyn, Rachel Brough, Alexandra Norman, Joe Ontiveros Rodriguez, Ben Dossett, Ori Miller, Janamejay Sharma, Christopher Reardon, Vincent Pandey, Regan Parish, Ren Pratt, Alisha Pravasi, Sanchari Das, Cari Reichel, Emma Robson, Victoria Rockwell, Jayce Rumsey, Steven Said, Norah Schroder, Alaina Smith, Shannon Murphy, Shujan A. Sharafeldeen, Stanley M. Kanai, James T. Nichols, David E. Clouthier, Macalia R. Augustus, Daniel Silva Rios, Scott Simpson, Anna Sparling, Chase Spurbeck, Kimberly Chiew, Christine Stadnik-Poteroba, Jacqueline Stephenson, Evelyn Stovin, Mia Supan, Lauren Tapper, Will Thrush, Anna Vogt, Michaela Walheim, Jon Weber, Hunter Whitehouse, Kansas Wood, Hayley Sayre, Lydia Mccann, Maread Mclaughlin, Kelly Krumrie, Olivia Wuttke
DU Undergraduate Research Journal Archive
Abstracts from the DU Undergraduate Research Showcase.
An Evaluation Of Sonderegger Pine Morphology, Kelsey Denise Shoemaker
An Evaluation Of Sonderegger Pine Morphology, Kelsey Denise Shoemaker
Master's Theses
Sonderegger pine (Pinus x sondereggeri H.H. Chapm.), the naturally occurring hybrid of longleaf (Pinus palustris Mill.) and loblolly pine (Pinus taeda L.), is considered a producer of poor-quality wood due to observations of stem forking and a high number of large-diameter branches at maturity. Because landowners generally decline planting Sonderegger pine seedlings, nursery workers cull putative hybrids from longleaf pine seedling stock during lifting and processing. However, over the past 100 years, very few studies have quantified stem quality of Sonderegger pine. To gain a better understanding of the early growth and development of Sonderegger pine, evaluations of height, diameter …
Smokejumper Obituary: Fowler, Frank Austin (Missoula 1952), National Smokejumper Association
Smokejumper Obituary: Fowler, Frank Austin (Missoula 1952), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Whitmire, Scott Frederick (Redding 1987), National Smokejumper Association
Smokejumper Obituary: Whitmire, Scott Frederick (Redding 1987), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Managing The Environmental And Socio-Economic Impacts Of Rohingya Refugees In Bangladesh, Mousume Azad
Managing The Environmental And Socio-Economic Impacts Of Rohingya Refugees In Bangladesh, Mousume Azad
Master's Projects and Capstones
In August 2017, nearly 1 million Rohingya people fled to Bangladesh to save their lives from the genocide inflicted by the military of Myanmar. At present, over 1.3 million Rohingyas are staying at Cox’s Bazar, Bangladesh, in 34 overcrowded refugee camps. This research examined the environmental impacts especially the change in vegetation cover and land surface temperature as well as the socioeconomic alteration of the host country after the refugee influx. The research found a 5488 ha or 9.58% decrease in forest area, accompanied by an 8.25% increase in refugee settlement areas, an increase in average land surface temperature within …
An Analysis Of The Logging Sector In East Texas: Current Status And Future Prospects, Pooja Chhetri
An Analysis Of The Logging Sector In East Texas: Current Status And Future Prospects, Pooja Chhetri
Electronic Theses and Dissertations
The logging sector plays a critical role in the wood supply chain and in forest management. It connects forest resources with mills, who consequently use that wood to manufacture a multitude of products. A better understanding of the state of logging businesses among policymakers is crucial in sustaining this industry. Therefore, this study aimed to estimate the economic contribution (2021) and economic contribution trend (2012-2021) of the logging sector in East Texas using Impact Analysis for Planning (IMPLAN). Furthermore, this study determined the current status of this sector using online and mail surveys. IMPLAN results showed that the logging sector …
The Need For A Chainsaw Safety Training Program For Female Forest Landowners, Patrick Hiesl, Janet Steele, Susan T. Guynn
The Need For A Chainsaw Safety Training Program For Female Forest Landowners, Patrick Hiesl, Janet Steele, Susan T. Guynn
Journal of Extension
Female forest landowners (FFLO) are increasing in numbers but have been marginalized in technical training programs in the past. We conducted chainsaw safety training programs geared towards FFLO and compared program evaluation results with results from male-dominated chainsaw training workshops. FFLO are limited in their technical knowledge at the beginning of a workshop, are more likely to own different types of chainsaws than male participants, and generally liked having a women-only workshop. The takeaway is that FFLO strive in a women-only environment and that more women-focused extension training programs are needed to provide with a safe and inclusive learning environment.
Soil Organic Matter Components And Characteristics Of Forest Soil In Spruce And Sycamore Plantations In The Temperate Region, Samuel Obeng Apori, Michelle Giltrap, Julie Dunne, Furong Tian Nanolab Research Centre, Focas Research Institute
Soil Organic Matter Components And Characteristics Of Forest Soil In Spruce And Sycamore Plantations In The Temperate Region, Samuel Obeng Apori, Michelle Giltrap, Julie Dunne, Furong Tian Nanolab Research Centre, Focas Research Institute
Articles
The stability of soil organic matter (SOM) that governs soil organic carbon (SOC) storage depends on its characteristics and components, but little is known about how tree species in forest ecosystems affect SOM components and characteristics. In this study, we used FTIR spectroscopy to investigate plantations of two ecologically and economically significant tree species—namely, spruce (Picea spp.) and sycamore (Acer pseudoplatanus)—in order to determine how the different litter inputs and root-microbe interactions of these two plantations affect the functional groups, components, and characteristics of their SOM. Soil samples were taken from the topsoil (0–10 cm) and subsoil (10–20 cm). In …
New York City’S Rising Sea Level And Coastal Erosion: Approaches To Resiliency, Ryder D. Isidro
New York City’S Rising Sea Level And Coastal Erosion: Approaches To Resiliency, Ryder D. Isidro
Student Theses 2015-Present
No abstract provided.
Major Axes Of Variation In Tree Demography Across Global Forests, Melina De Souza Leite, Sean M. Mcmahon, Paulo Inácio Prado, Stuart J. Davies, Alexandre Adalardo De Oliveira, Hannes P. De Deurwaerder, Salomón Aguilar, Kristina J. Anderson-Teixeira, Nurfarah Aqilah, Norman A. Bourg, Warren Y. Brockelman, Nicolas Castaño, Chia-Hao Chang-Yang, Yu-Yun Chen, George Chuyong, Keith Clay, Álvaro Duque, Sisira Ediriweera, Corneille E. N. Ewango, Gregory Gilbert, I. A. U. N. Gunatilleke, C. V. S. Gunatilleke, Robert Howe, Walter Huaraca Huasco, Akira Itoh, Daniel J. Johnson, David Kenfack, Kamil Král, Yao Tze Leong, James A. Lutz, Jean-Remy Makana, Yadvinder Malhi, William J. Mcshea, Mohizah Mohamad, Musalmah Nasardin, Anuttara Nathalang, Geoffrey Parker, Renan Parmigiani, Rolando Pérez, Richard P. Phillips, Pavel Šamonil, I-Fang Sun, Sylvester Tan, Duncan Thomas, Jill Thompson, María Uriarte, Amy Wolf, Jess Zimmerman, Daniel Zuleta, Marco D. Visser, Lisa Hülsmann
Major Axes Of Variation In Tree Demography Across Global Forests, Melina De Souza Leite, Sean M. Mcmahon, Paulo Inácio Prado, Stuart J. Davies, Alexandre Adalardo De Oliveira, Hannes P. De Deurwaerder, Salomón Aguilar, Kristina J. Anderson-Teixeira, Nurfarah Aqilah, Norman A. Bourg, Warren Y. Brockelman, Nicolas Castaño, Chia-Hao Chang-Yang, Yu-Yun Chen, George Chuyong, Keith Clay, Álvaro Duque, Sisira Ediriweera, Corneille E. N. Ewango, Gregory Gilbert, I. A. U. N. Gunatilleke, C. V. S. Gunatilleke, Robert Howe, Walter Huaraca Huasco, Akira Itoh, Daniel J. Johnson, David Kenfack, Kamil Král, Yao Tze Leong, James A. Lutz, Jean-Remy Makana, Yadvinder Malhi, William J. Mcshea, Mohizah Mohamad, Musalmah Nasardin, Anuttara Nathalang, Geoffrey Parker, Renan Parmigiani, Rolando Pérez, Richard P. Phillips, Pavel Šamonil, I-Fang Sun, Sylvester Tan, Duncan Thomas, Jill Thompson, María Uriarte, Amy Wolf, Jess Zimmerman, Daniel Zuleta, Marco D. Visser, Lisa Hülsmann
Wildland Resources Faculty Publications
The future trajectory of global forests is closely intertwined with tree demography, and a major fundamental goal in ecology is to understand the key mechanisms governing spatio-temporal patterns in tree population dynamics. While previous research has made substantial progress in identifying the mechanisms individually, their relative importance among forests remains unclear mainly due to practical limitations. One approach to overcome these limitations is to group mechanisms according to their shared effects on the variability of tree vital rates and quantify patterns therein. We developed a conceptual and statistical framework (variance partitioning of Bayesian multilevel models) that attributes the variability in …
The Biltmore Forest School And The Establishment Of Forestry Education In America, Dan Barry Croom
The Biltmore Forest School And The Establishment Of Forestry Education In America, Dan Barry Croom
Journal of Research in Technical Careers
The Biltmore Forest School, despite its unusual existence within the affluent Biltmore Estate, played a crucial role in the early 20th-century American forestry movement. Founded by Carl A. Schenck and supported by George Vanderbilt II, the school aimed to educate foresters and promote sustainable forest management. However, many aspects of the Biltmore experiment failed due to the new and untested nature of forestry science in America. This experiment exposed a fundamental divide in forestry education, with Gifford Pinchot advocating for conservation-centered teaching while Schenck believed in the economic viability of lumber production. Ultimately, the Biltmore Forest School offered valuable vocational …