Forest Sciences Commons^™

Quemando Leña En Guatemala: Salud, Sostenibilidad Y Costumbres, Sydney Underhill

World Languages and Cultures Senior Capstones

In the Central American country of Guatemala, firewood is an important fuel source. Eighty-eight percent of households in rural areas use wood stoves and open fires to cook and heat their homes. This tradition has fundamental roots in the culture and customs of Guatemala. Unfortunately, these methods contribute to air pollution. Consequently, it also results in smoke inhalation, which causes health problems. Additionally, the massive agriculture of other crops decreases the amount of firewood available to these households, affecting the sustainability of the resource. Some communities resist changing their use of firewood due to the profound nature that firewood holds …

Proposing Urban Agroforestry Designs For Lincoln, Nebraska: A Model From Berlin, Germany, Noah Johnson

Honors Theses

Given the threat of a worsening climate crisis, there is a strong need for community and ecosystem resilience. Diverse urban agroforestry systems have the potential to accomplish both and meet many of the objectives outlined in the city of Lincoln, Nebraska’s climate action plan. Additionally, Berlin, Germany could provide an effective model for Lincoln in this regard given the city’s extensive history of established urban agroforestry systems. The objective of this study then is to develop a design for an urban agroforestry site modeled on Berlin’s allotment gardens and tailored to Lincoln’s needs. The methods for creating this design included …

Environmental Factors Associated With Triploid Aspen Occurrence In Intermountain West Landscapes, James A. Walton

All Graduate Theses and Dissertations, Fall 2023 to Present

Polyploidy is common among plants and can contribute to physiological and morphological differences, altering how plants respond to environmental changes, promoting genetic diversification and even species radiation. Quaking aspen (Populus tremuloides), a keystone species associated with high plant and animal diversity is frequently found in mixed diploid/triploid populations in the Intermountain West. Triploid aspen carries an extra chromosomal copy, whereas the diploid type contains two chromosomal copies. High mortality rates and widespread population declines in aspen are of increasing concern in the Intermountain West, and often ascribed to changing climates and drought stress events. The goal of this …

Tree Canopy Cover Influences Habitat Use Of Breeding Birds At Jack Mountain Wildlife Management Area, Kaleigh Thomas

Scholars Day Conference

Across the United States, bird populations have declined due to habitat loss. To better understand habitat use by birds, researchers observed populations at Jack Mountain Wildlife Management Area in southwest Arkansas. Students at Ouachita Baptist University surveyed 94 point count locations to estimate species diversity (total number of species observed) and species abundance (total number of individuals observed). At each point, students recorded the percentage of tree canopy cover, ground cover, midstory cover, and shrub cover. These variables were used as explanatory variables in multiple regression analyses to determine which variables were influential in explaining variation in species diversity and …

Characteristics Of Earthworms In Selective Forest Types In Michigan-Illinois Region, Xiaoyong Chen

Research Days

Both invasive exotic and native earthworms have undesirable ecological effects on the structure, function, and biodiversity of forest ecosystems in the Great Lakes area. Understanding the biological parameters and distribution patterns of these earthworms is crucial for their life cycle and their impacts on ecological processes such as nutrient biogeochemistry cycling and carbon sequestration in forests, as well as for informing forest management practices. In this study, abundance, distribution, and mass-length relation of earthworms were investigated in selective typical forest types along a Michigan-Illinois latitudinal gradient. These forest types include Hemlock-White pine-Maple (HWM) forests in Huron Mountains of Michigan, White …

Michigan's Upper Peninsula Is The Cradle Of Paul Bunyan's Beehives, Thomas J. Straka

Upper Country: A Journal of the Lake Superior Region

One of the Michigan 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. The four basic kiln designs (rectangular, round, conical, and beehive) were all used in the region, with the beehive design becoming the predominant form. James C. Cameron, Jr. is credited with developing the beehive charcoal kiln design while employed by Upper Peninsula iron furnaces. This design was first introduced to the Upper Peninsula, and then to Northeastern Wisconsin, Northern New York, and the Far …

Tree Canopy Cover Influences Habitat Use Of Breeding Birds At Jack Mountain Wildlife Management Area, Kaleigh Thomas

Honors Theses

Across the United States, bird populations have declined due to habitat loss. To better understand habitat use by birds, researchers observed populations at Jack Mountain Wildlife Management Area in southwest Arkansas. Students at Ouachita Baptist University surveyed 94 point count locations to estimate species diversity (total number of species observed) and species abundance (total number of individuals observed). At each point, students recorded the percentage of tree canopy cover, ground cover, midstory cover, and shrub cover. These variables were used as explanatory variables in multiple regression analyses to determine which variables were influential in explaining variation in species diversity and …

An Ecology Against The Right. Learning Uncertainty And Humility From Ecosystems, Pierre L. Ibisch, Mona Eikel-Pohen, Elias Iceman, Jake Snelling

Languages, Literatures, and Linguistics - All Scholarship

This article is a translation from the German to English. The title of the original is:

Ibisch, P.L. (2020): Eine Ökologie gegen rechts. Von Ökosystemen Unsicherheit und Demut lernen. In: Leitschuh, H., A. Brunnengräber, P.L. Ibisch, R. Loske, M. Müller, J. Sommer & E.-U. v. Weizsäcker (eds. J. Sommer, P.L. Ibisch, A. Brunnengräber): Ökologie und Heimat. Jahrbuch Ökologie 2021. Hirzel-Verlag, Stuttgart, 191-205.

Utilization Of The Hunt Trap Method To Investigate A Small Mammal Community In An Upland Pine Stand, Leo Montano

Undergraduate Research Conference

Small mammals are strong and informative biological indicators of forest ecosystems. Populations are responsible for shaping successional patterns through their diets, behaviors, and contributions to other ecological communities.

Knowledge of community metrics within southern yellow pine forests under varying production and disturbance regimes can be valuable in understanding pine production impacts on biodiversity.

The objective of this study was to investigate species richness, time to detection, and activity patterns of the small mammal community in an upland pine stand utilizing the Hunt Trap Method.

Effect And Mechanisms Of Conifer And Broadleaf Mixtures On The Soil Characteristics In Limestone Mountains, Xueping Zhang, Yuhua Ma, Songling Fu, Jingjing Qian, Qi Zhu, Chun Feng, Zihao Li, Wenhao Zhu, Han Chen

Turkish Journal of Agriculture and Forestry

In the restoration process of limestone mountain ecosystem, the interaction mechanism, between vegetation and soil are the core scientific issues for a better understanding of ecological restoration and ecosystem stability. Based on this, four types of 30 year old artificial forest communities with different coniferous and broad-leaved mixed ratios (0-20 %, 20 - 50 %, 50 – 80 %, 80 – 100 %) in typical limestone mountainous areas of the northern subtropical region are used as research objects to measure understory vegetation diversity, litter, and fine root characteristics. The impact of different mixing ratios on understory vegetation restoration and soil …

In-Silico Analysis For Structural And Functional Characterization Of Phosphorus-Starvation Tolerance 1 (Pstol1) Gene, Quratulain Mehdi Khan, Muhammad Aqeel, Maryam Murtaza, Wajya Ajmal, Muhammad Uzair, Sajid Fiaz, Kotb A. Attia, Asmaa M. Abushady, Itoh Kimiko, Muhammad Ramzan Khan, Ghulam Muhammad Ali

Turkish Journal of Agriculture and Forestry

As an important macro element for all living cells, phosphorus is essential in agricultural production systems as well and is required in large quantities by elite varieties of crops to maintain yields. Approximately 70% of worldwide cultivated land suffers from phosphorous deficiency, and it has recently been estimated that worldwide phosphorous resources will be shattered by the end of this century thus increasing the demand for crops to be more efficient in their P usage. A greater understanding of how plants can maintain yield with lower phosphorous availability is highly desirable to both breeders and farmers, therefore, significant to develop …

Unraveling The Impact Of Seed Fatty Acid Profiles On Spinach Seed Germination Under Temperature Stress, Mustafa Kaşka, Haluk Çağlar Kaymak

Turkish Journal of Agriculture and Forestry

Limited knowledge exists regarding the fatty acid profiles of spinach (Spinacia oleracea L.) seeds and their correlation with germination. This study aims to address this gap by thoroughly investigating these profiles and their relationship with seed germination. Therefore, the objectives include assessing how different temperatures influence seed germination in spinach cultivars, identifying tolerant cultivar(s) to temperature stress during germination, and exploring the relationship between fatty acid profiles and seed germination under varying temperature conditions. Nine spinach cultivars (‘Matador-1, 2, and 3’, ‘Ranchero F1’, ‘Aras F1’, ‘El Tajin’, ‘El Real’, ‘Catrina F1’ and ‘Poyraz F1’) were used as seed material. The …

Multi-Node Temperature Monitoring Method For Digital Agricultural Planting Based On Wireless Sensor Network, Pei Wang

Turkish Journal of Agriculture and Forestry

Abstract: In order to monitor the temperature of agricultural planting in time and avoid reducing the yield and quality of crops due to excessive temperature fluctuation, a multi-node temperature monitoring method of digital agricultural planting based on wireless sensor network is proposed. Firstly, the wireless sensor network structure in agricultural digital temperature monitoring is designed, and the overall structure of digital agricultural planting multi-node temperature monitoring is designed by combining it with the upper computer to collect agricultural planting temperature data. Secondly, the characteristics of agricultural planting temperature data are extracted, and the data are transmitted to the upper computer …

Study On Heavy Metal Content Calculation And Agricultural Potential Based On Hyperspectral Remote Sensing Image Processing, Xiangyu Shan, Fei Dou, Shuangquan Gao, Chuanping Liu, Cangbai Li

Turkish Journal of Agriculture and Forestry

Soil is the main influencing factor for plant growth, reproduction, and distribution. With the acceleration of industrialization and the intensification of human activities, the problem of heavy metal pollution in agricultural soil is becoming increasingly prominent. Heavy metals in soil are toxic and easily absorbed by plants, and consuming contaminated crops poses a great threat to human health. Therefore, it is necessary to monitor the content of heavy metals (HMs for short here) in soil. Hyperspectral Remote Sensing (HRS for short here) has great application prospects in obtaining quantitative information of soil organic matter, minerals and other components due to …

Intelligent Food Packaging Design Based On Visual Communication And Multimedia Technology, Yumian Liu, Zekun Wang

Turkish Journal of Agriculture and Forestry

Intelligent food packaging has labels that cover a vast amount of information, but some labels may pop up a lot of information after scanning, which can easily cause interface confusion, and there may be a lack of single display channels, resulting in long search times for consumers. The aim of smart food packaging design research based on visual communication and multimedia technologies is to explore and develop innovative methods to improve the attractiveness, functionality and interaction with consumers of food packaging. These all can directly affect consumers’ purchasing intention. This article was based on visual communication and multimedia technology for …

Chitosan Application Improves Yield And Quality Of Rocket (Eruca Sativa), Ayşe Özkan, Hali̇me Ünlü

Turkish Journal of Agriculture and Forestry

The present study aimed to investigate the effects of chitosan application on the yield and quality of rockets. “Bengi” rocket variety was used as a plant material and chitosan was applied to leaves at four different doses (0 (control)–75–150–300 ppm). The results revealed that the yield values varied between 1691–1914 g m-2, plant height between 24.33–27.92 cm, and leaf width between 4.56–5.71 cm among the applications. The total dry matter, chlorophyll, total phenolics, vitamin C, and antiradical activity values were determined to range between 7.71% and 8.68%, 34.15 and 36.68 SPAD, 104.67 and 180.84 mg 100 g–1, 126.63 and 143.51 …

Clonal Selection In Mincane Hazelnut (Coryllus Avellana L.) Cultivar In Akçakoca District Of Düzce Province, Hülya Ünver

Turkish Journal of Agriculture and Forestry

Türkiye has dominated world hazelnut production for a long time and one of the most important hazelnut growing areas in the Black Sea region is Düzce province. Agriculture plays an important role in Düzce economy and hazelnut orchards occupy 45% of total agricultural areas. Mincane hazelnut cultivar widely grown in Akçakoca and shows variability particularly for nut characteristics. Thus, this study was aimed to select promising clones with superior features from the population of the Mincane hazelnut cultivar. In the selection study, some important nut characteristics were examined. According to a modified weighted ranking method results, 7 Mincane hazelnut clones …

Enhancing Grain Yield, Oil Content, Fatty Acid Composition And Changes In Antioxidant Properties Of Camelina Using Wi-Fi Radiation, Maryam Khashayarfard, Sedigheh Arbabian, Danial Kahrizi, Fariba Sharifnia

Turkish Journal of Agriculture and Forestry

Exposure to electromagnetic radiation (ER) with radio frequency is one of the environment's most common and fastest-growing human factors. Therefore, due to the increasing global growth of telecommunication towers and Wi-Fi waves, the possibility of positive or negative effects of Wi-Fi electromagnetic waves (WEW) is essential for the quality and quantity parameters of plants. An experiment was was carried out during the years 2020-2021 at the Research Farm of Tarbiat Modares University to investigate the effect of WEW on the grain yield, fatty acid composition (FA), oil content and antioxidant properties of camelina. Seeds were exposed to Wi-Fi electromagnetic radiation …

Genetic Analysis Of Seed Yield And Some Traits In Cowpea Using Diallel Analysis, Christelle Jou-Nteufa, Ercan Ceyhan

Turkish Journal of Agriculture and Forestry

Cowpea is an essential economic crop in underdeveloped and developing countries mainly grown by small farmers. In terms of seed yield and some agricultural characteristics, this study was carried out to determine the genetic structures and the general and specific adaptability of the genotypes. The trial, which included F1 hybrids and parents, was established under Konya ecological conditions with 3 replications in 2020 in the “Random Blocks Trial” design. Based on the results of the preliminary analysis of variance, it was determined that there was sufficient variation in the hybrid populations formed in terms of all traits examined. Nonadditive and …

Antioxidant Properties And Aldose Reductase Inhibitory Potency Of Viscum Album L. Extracts: Experimental And Computational Insights, Bilal Akyüz, Bülent Şengül

Turkish Journal of Agriculture and Forestry

This study systematically investigates the antioxidant capacity and inhibitory impact of Viscum album L. plant extracts on the aldose reductase (AR) enzyme through a combined approach of in vitro and in silico methods. Various sections derived from distinct plant parts were examined, revealing potent inhibitory potential. Notably, the methanol extract sourced from the plant's stem displayed remarkable efficacy with an IC50 value of 0.156 µM. Total phenolic content and antioxidant capacity analyses were conducted, highlighting variations across plant parts and solvent types. Qualitative and quantitative phenolic compounds content in the extracts was also elucidated by LC-MS/MS analysis and it was …