Patterns, Mechanisms, And Characterization Of Carbon Cycling Stability Following Partial Forest Disturbance,
2023
Virginia Commonwealth University
Patterns, Mechanisms, And Characterization Of Carbon Cycling Stability Following Partial Forest Disturbance, Kayla C. Mathes
Theses and Dissertations
Among the most essential questions in the era of climate change is how the forest carbon (C) cycle will respond to an increase in the extent of biotic disturbances from insects and pathogens. While research has focused on stand-replacing disturbance regimes, less is known about C cycling stability following partial disturbances that produce gradients of disturbance severity. Belowground C cycling responses to disturbance are especially poorly understood, even though temperate forest soils contain up to 50% of total ecosystem C and soil respiration (Rs) accounts for more than half of temperate forest C loss. Interpreting trends and mechanisms …
The Birds And The Trees: Quantifying The Drivers Of Whitebark Pine Decline And Clark's Nutcracker Habitat Use In Glacier National Park,
2023
The University Of Montana
The Birds And The Trees: Quantifying The Drivers Of Whitebark Pine Decline And Clark's Nutcracker Habitat Use In Glacier National Park, Vladimir Kovalenko
Graduate Student Theses, Dissertations, & Professional Papers
Whitebark pine (Pinus albicaulis), recently listed as threatened under the Endangered Species Act, is in steep decline in Glacier National Park, Montana, USA due to the non-native pathogen Cronartium ribicola, causal agent of the fatal disease white pine blister rust. A sample of the park’s population suggests that approximately 70 percent of whitebark pines have died, while 65 percent of the remaining trees are infected. Using landscape and climate variables, we show how geographic location, elevation, aspect, solar radiation, relative humidity, and snowpack interact with tree diameter to affect mortality, disease incidence, cone production, and regeneration. We also examine how …
Analysis Of Competencies Of The Engineering Research And Development For Technology Alumni Of The University Of The Philippines Los Banos,
2023
University of the Philippines Rural High School, University of the Philippines Los Banos (UPLB), Laguna, Philippines;
Analysis Of Competencies Of The Engineering Research And Development For Technology Alumni Of The University Of The Philippines Los Banos, Paulyn G. Micor, Maria Ana T. Quimbo, John Erinorio M. Perez, Ruth Ortega-Dela Cruz
Journal of Public Affairs and Development
In the context of local and global workforce and people skills competitiveness, this study sought to determine whether the Engineering Research and Development for Technology - University of the Philippines Los Banos (ERDT-UPLB) alumni are competent in their chosen employment fields. Using the Likert scale of measurement, the skills, knowledge, and attitude competencies of engineering graduates were compared to the preferred competencies of employers and potential employers. Results showed no significant difference between the existing competencies of the ERDT alumni and the preferred competencies of prospective employers. Moreover, employers and potential employers have indicated a positive and favorable response to …
Forest Bathing Increases Adolescent Mental Well-Being And Connection To Nature: A Transformative Mixed Methods Study,
2023
Antioch University of New England
Forest Bathing Increases Adolescent Mental Well-Being And Connection To Nature: A Transformative Mixed Methods Study, Jennifer Keller
Antioch University Dissertations & Theses
Previous research has demonstrated that practicing forest bathing has significant positive effects on well-being. However, few studies have investigated whether forest bathing increases adolescent well-being despite the growing adolescent mental health crisis in the United States. Similarly, few studies have explored forest bathing’s impacts on connectedness to nature. Considering the ongoing environmental crisis, determining if forest bathing increases connectedness to nature is a critical expansion of forest bathing research, as connectedness to nature is linked to environmental care and concern. This study investigated the possibility that forest bathing, a nature-based mindfulness practice, could increase adolescent mental well-being and connectedness to …
Carnivore And Ungulate Occurrence In A Fire-Prone Region,
2023
California State Polytechnic University Humboldt
Carnivore And Ungulate Occurrence In A Fire-Prone Region, Sara J. Moriarty-Graves
Cal Poly Humboldt theses and projects
Increasing fire size and severity in the western United States causes changes to ecosystems, species’ habitat use, and interspecific interactions. Wide-ranging carnivore and ungulate mammalian species and their interactions may be influenced by an increase in fire activity in northern California. Depending on the fire characteristics, ungulates may benefit from burned habitat due to an increase in forage availability, while carnivore species may be differentially impacted, but ultimately driven by bottom-up processes from a shift in prey availability. I used a three-step approach to estimate the single-species occupancy of four large mammal species: mountain lion (Puma concolor), coyote …
Establishing A Market Capacity And Economic Baseline For Forest Biomass Utilization In The Southern Cascade And Northern Sierra Nevada Mountain Range, California,
2023
Humboldt State University
Establishing A Market Capacity And Economic Baseline For Forest Biomass Utilization In The Southern Cascade And Northern Sierra Nevada Mountain Range, California, Clarke Stevenson
Cal Poly Humboldt theses and projects
Attempts to address wildfire risk and forest resilience have increased substantially over the last 20 years with specific interest in removing excess vegetation from stands, commonly referred to as “forest biomass”. However, the market capacity for and the economics of biomass utilization have been a limiting factor to achieving statewide goals for forest health and fire resilience. This thesis looks at the Southern Cascade and Northern Sierra Nevada biomass supply chain to benchmark current market capacity for biomass utilization through mapping and harvest record analysis. It also calculates the net revenue of biomass mobilization based on costs developed from a …
Knobcone Pine Response To Shading From Competing Chaparral Shrubs Following Stand-Replacing Wildfire,
2023
Humboldt State University
Knobcone Pine Response To Shading From Competing Chaparral Shrubs Following Stand-Replacing Wildfire, Sean T. Lindley
Cal Poly Humboldt theses and projects
In northern California, fire regimes are shifting towards more frequent and larger severe wildfire. There is growing concern that this shift poses a threat to biodiversity in the form of cover type change at the landscape scale, resulting in the extirpation of some species in favor of +AD617:AD649well-adapted ones. In northern California, mature serotinous conifers, such as knobcone pine (Pinus attenuata), and resprouting shrub species easily regenerate in severe patches of any size. There is no general consensus regarding the effects of shrub competition on conifer recruitment; conifer response varies with shade tolerance and other abiotic factors. Knobcone …
The Effects Of Trailside/Non-Trailside Sample Collection And Tree Communities On Biodiversity Of Mushroom-Forming Fungi In Public Green Spaces Of New London, Connecticut,
2023
Connecticut College
The Effects Of Trailside/Non-Trailside Sample Collection And Tree Communities On Biodiversity Of Mushroom-Forming Fungi In Public Green Spaces Of New London, Connecticut, Quincy Dowling
Botany Honors Papers
The Kingdom Fungi holds a wealth of biodiversity and potential for better supporting both natural and human communities (Lange, 2014). Mushroom-forming fungi have potential value as sustainable and accessible sources of food in public green spaces (Rombach & Dean, 2023). The purpose of this investigation was to examine the effect of trailside disturbance and tree communities on the diversity and community composition of mushroom-forming fungi in New London, Connecticut. Six public green spaces were identified and surveyed for species richness of mushroom-forming fungi. At each site, two foraging areas of equal area were defined: one along either side of a …
The Library Garden As A Sustainable Sensory Space,
2023
Technological University Dublin
The Library Garden As A Sustainable Sensory Space, Linda Bennett
Presentations
TU Dublin Library Services has a holistic approach to our students’ needs. With that in mind we have begun to develop the library garden on our Tallaght campus for the use of both students and staff. This show and tell will show our progress so far and include what we want to achieve in the future. Sustainability is part of the University’s strategic intent and is to the fore in this project. With some success growing fruit and veg we hope to expand this going forward. In essence, we want to create a calming sensory space to be in, which …
Conversion And Utilization Of Forest Logging Residues For Value Added Bioproducts In The Eastern United Sates,
2023
West Virginia University
Conversion And Utilization Of Forest Logging Residues For Value Added Bioproducts In The Eastern United Sates, Wanhe Hu
Graduate Theses, Dissertations, and Problem Reports (ETD)
Four major studies were conducted in this dissertation to investigate the quality, availability, pretreatment, conversion, and utilization of forest logging residues in the eastern United States. The introduction and conclusion sections are found in the first and last chapters. The quality of various-year-naturally-decomposed softwood and hardwood forest logging residues from three subregions of the eastern United States was investigated in the second chapter. In the third chapter, the combustion and energy properties of hydrothermal, inert, and oxidative torrefied red maple were investigated. Finally, in the fourth and fifth chapters, KMnO4 surface-modified logging residue hydrochars were used to investigate the …
Job Stress Management In Forest Administration Chief Officers In Turkey,
2023
TÜBİTAK
Job Stress Management In Forest Administration Chief Officers In Turkey, İlker Akyüz
Turkish Journal of Agriculture and Forestry
Employees in all sectors are constantly under stress. This stress can be a result of job, organization and environmental factors. In addition, stress can have certain negative consequences and individuals use different methods to cope with them. In this study, the symptoms of stress and the stressors to which forest administration chief officers are subjected and their strategies for overcoming the stress were investigated. The research was designed as a field study and was conducted using via questionnaire. The study?s sample consists of forest administration chiefs in Turkey. Four hundred and forty survey forms were assessed and all the statistical …
Analysis Of Morphological And Pomological Features Of Apricot In The Nakhchivan Autonomous Republic Of Azerbaijan,
2023
TÜBİTAK
Analysis Of Morphological And Pomological Features Of Apricot In The Nakhchivan Autonomous Republic Of Azerbaijan, Ami̇na Raki̇da
Turkish Journal of Agriculture and Forestry
Apricot (Prunus armeniaca L.) is grown across a wide geographical area and has been cultivated in Azerbaijan for more than three thousand years. The purpose of the study was to characterize the apricot varieties and forms collected from the Nakhchivan Autonomous Republic of Azerbaijan. Fourty-four apricot varieties and forms were studied according to 10 (phenological, pomological, morphological) parameters. A wide variation was found between yield, total soluble solids and fruit weight among varieties and forms. Fruits of the most of apricot varieties and forms were small, only two of them-Hampa and Limon Erik 2-had a fruit weight more than …
Tandem Mass Spectrometry Analysis Reveals Changes In Metabolome Profile In Triticosecale Seeds Based On Harvesting Time,
2023
TÜBİTAK
Tandem Mass Spectrometry Analysis Reveals Changes In Metabolome Profile In Triticosecale Seeds Based On Harvesting Time, Nadezhda Chikida, Mayya Razgonova, Lubov Bekish, Alexander Mikhailovich Zakharenko, Kirill Golokhvast
Turkish Journal of Agriculture and Forestry
Triticosecale "Bilinda" (cultivar was bred in the laboratories of the Leningrad Research Agriculture Institute, Branch of Russian Potato Research Centre, Leningrad Province) contains a large number of polyphenolic compounds which are biologically active components. The purpose of this work was to conduct a comparative metabolomic study of extracts of Triticosecale cultivar "Bilinda" seeds harvested at different stages of maturation. To identify target analytes in extracts HPLC was used in combination with an ion trap. The results showed the presence of 93 target compounds corresponding to Triticosecale. In addition to the reported polyphenol constituents, 28 polyphenols were newly annotated in …
Investigation Of The Effects Of Pesticides On 'Jonagold' Apple (Malus X Domestica) Polyphenol Oxidase Enzyme Activity,
2023
TÜBİTAK
Investigation Of The Effects Of Pesticides On 'Jonagold' Apple (Malus X Domestica) Polyphenol Oxidase Enzyme Activity, Cengi̇z Çesko, Sami̇ Gashi̇, Gülnur Arabaci, Hati̇ce Palüzar, Berat Durmi̇shi̇, Era Bruçi̇, Fjolla Vllasali̇u, Nedi̇m Özdemi̇r
Turkish Journal of Agriculture and Forestry
this study, the effects of a number of commonly used pesticides on the activity of the polyphenol oxidase (PPO) enzyme from pesticide-free and pesticide-applied 'Jonagold' apples were comparatively evaluated. Substrates 4-methylcatechol, pyrocatechol, pyrogallol and L-tyrosine were used to determine the substrate specificity of the PPO enzyme obtained from apple. According to the results, on the contrary, PPO enzyme from 'Jonagold' apple did not show any activity against L-tyrosine substrate which is a monophenolic substrate, the enzyme had high affinity against 4-methylcatechol, pyrocatechol and pyrogallol which are di and tri phenolic substrates. Km values of PPO enzyme obtained from pesticide-free …
Alleviating Effects Of Salicylic Acid Spray On Stage-Based Growth And Antioxidative Defense System In Two Drought-Stressed Rice (Oryza Sativa L.) Cultivars, Asma ., Iqbal Hussain, Muhammad Yasin Ashraf, Muhammad Hamzah Saleem, Muhammad Arslan Ashraf, Baber Ali, Aisha Shereen, Ghulam Farid, Muhammad Ali, Muhammad Ubaidullah Shirazi, Ammara Saleem, Yasser S. Mostafa, Mohamed Hashem, Ghulam Yasin
Turkish Journal of Agriculture and Forestry
Approximately 33% of the arable land around the world is vulnerable to drought, which is a very serious issue affecting the yield and productivity of cereal crops. Two contrasting rice (Oryza sativa L.) genotypes, HTT-138 (drought tolerant) and (HTT-39 droughtsensitive), under various levels of water treatments, i.e. control flooded (CF) as recommended for rice (control), control saturated (CS) 100% field capacity (FC), 80% FC, and 60% FC without or with foliar spray (100 mg L-1) of salicylic acid (SA) evaluated to enhance the yield for food security. The results showed that leaf gas exchange parameters, water use …
Technical Evaluation Of Transplanters' Performance For Potted Seedlings,
2023
TÜBİTAK
Technical Evaluation Of Transplanters' Performance For Potted Seedlings, Davut Karayel, Murad Çanakci, Mehmet Topakci, Ali̇ Aktaş, Hakdan Aytem, Zi̇ta Kriauciuniene
Turkish Journal of Agriculture and Forestry
This research was conducted to evaluate the performance of disc, carrousel and dibble-type transplanters for potted tomato and watermelon seedlings in field conditions. Intra row distance, transplantation depth, the gripping force of seedlings to the soil, vertical position, damage of seedling and seedling survival rate were determined to evaluate performance of transplanters. The disc and carrousel-type transplanters place the seedlings into furrow and the dibble-type transplanter places the seedlings into the holes. According to field experiment results, distribution uniformity of intra row distance of dibble and carrousel-type transplanters were very well with the coefficient of variations between 3.52% and 5.55%. …
Standardization Of Vigour Test To Predict Field Emergence And Difference Of Seed Vigour Among Lentils (Lens Culinaris L.) Seed Lots, Negar Ebrahim Pour Mokhtari
Turkish Journal of Agriculture and Forestry
Selecting seeds with high vigour eminently affects initial plant growth and determines plant stand. Various tests including electrical conductivity (EC), radicle emergence counts (RE), and standard germination (SG) tests were used to assess the vigour of eleven lentils (Lens culinaris L.) seed lots. Lentil seed lots with over 75% normal germination, were germinated with the use of an ISTA standard germination test. The radicle emergence (2 mm) was tallied at constant intervals from 24-120 h. The seed lots were sown in the fields and 40 days after sowing, the final seedling emergence was evaluated. The standard germination test demonstrated …
Comparison Of Bioactive Compounds Of Continental And Mediterranean Pomegranate Fruits And Its Application In Urban Gardening,
2023
TÜBİTAK
Comparison Of Bioactive Compounds Of Continental And Mediterranean Pomegranate Fruits And Its Application In Urban Gardening, Radenka Kolarov, Mirjana Ljubojevic, Jovana Sucur Elez, Mirjana Adakalic, Biljana Lazovic, Dejan Prvulovic, Sezai̇ Erci̇şli̇, Djordje Malencic
Turkish Journal of Agriculture and Forestry
With the significant increase in population in cities, the necessity of growing safe and functional food is of great importance. Pomegranate fruit has many valuable antioxidant properties. The subject of study was the pomegranate from the continental region (Sremski Karlovci, Serbia) and the Mediterranean region (Bar, Montenegro). We compared biochemically active compounds in genotypes from both locations. The analysis performed included total phenolics, tannins, flavonoid contents, proanthocyanidins, pigments chlorophyll a and chlorophyll b, as well as carotenoids. Analysis of vitamin C, titratable acidity, pH value, and total sugars were also performed. Two antioxidant tests were also conducted, including DPPH and …
Assessment Of Genetic Variability And Genetic Parameters Of Morphological And Agro-Physiological Traits In Camelina Sativa (L.), Farshad Fallah, Danial Kahrizi, Abbas Rezaeizad, Alireza Zebarjadi, Leila Zarei, Hülya Doğan
Turkish Journal of Agriculture and Forestry
The present investigation was done to evaluate genetic variability and estimation of genetic parameters of morphological and agro-physiological traits in Camelina sativa (L.) using biometrical genetic techniques. For this purpose, 136 Camelina doubled haploid line genotypes were assessed in a randomized complete blocks design with three replicates in the Field Research, Razi University, Kermanshah, Iran, during the 2014-2015 cropping season. The results of the analysis of variance showed significant differences between the genotypes for all studied traits. High estimates of genetic gain and broad-sense heritability were observed for the number of pods per plant, the number of pods per main …
Determination Of Some Quality Properties And Antimicrobial Activities Of Kombucha Tea Prepared With Different Berries,
2023
TÜBİTAK
Determination Of Some Quality Properties And Antimicrobial Activities Of Kombucha Tea Prepared With Different Berries, Oktay Tomar
Turkish Journal of Agriculture and Forestry
Kombucha is a slightly sweet, acidic, carbonated, fermented beverage obtained by fermenting sugared tea (Camellia sinesis) with symbiotic bacteria. In the present study, kombucha was produced from black tea (Camellia sinensis), black grape (Vitis labrusca), black mulberry (Morus nigra), and rosehip (Rosa canina) fruits. Its physicochemical, microbiological, sensory properties and antimicrobial effects were investigated. During the fermentation, pH, Brix (%), viscosity, total antioxidant, and phenolic substance values decreased (p < 0.05). Total aerobic mesophilic bacteria (TAMB) and yeast/mold, Lactococcus/Streptococcus counts decreased, while the osmophilic yeast, acetic acid, and lactic acid bacterial counts increased (p < 0.05). The samples produced using black mulberry had the highest antibacterial activity (26.58 mm zone diameter), lowest minimum inhibitory concentration (MIC) (0.012 mg·L$^{-1}$), and minimum bactericidal concentration (MBC) (0.008 mg·L$^{-1}$) on Staphylococcus aureus. The highest …
