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Articles 1171 - 1200 of 4004
Full-Text Articles in Forest Management
Seed Size And Germination, Meredith Cobb, Michaela J. Woods, Ryan W. Mcewan
Seed Size And Germination, Meredith Cobb, Michaela J. Woods, Ryan W. Mcewan
Five Rivers MetroParks Collaboration Data Archive
This dataset encompasses information related to predictors of seed germination from the species Carya laciniosa, Juglans cinerea, and Quercus rubra. Seed sizes were recorded prior to incubation in sand, vermiculite, or without media. Seeds were then germinated with time to germination recorded in this dataset.
Influence Of Forest-To-Silvopasture Conversion And Drought On Components Of Evapotranspiration, Adam P. Coble, Alexandra R. Contosta, Richard G. Smith, Nathan W. Siegert, Matthew A. Vadeboncoeur, Katie A. Jennings, Anthony J. Stewart, Heidi Asbjornsen
Influence Of Forest-To-Silvopasture Conversion And Drought On Components Of Evapotranspiration, Adam P. Coble, Alexandra R. Contosta, Richard G. Smith, Nathan W. Siegert, Matthew A. Vadeboncoeur, Katie A. Jennings, Anthony J. Stewart, Heidi Asbjornsen
Natural Resources & the Environment
The northeastern U.S. is projected to experience more frequent short-term (1-2 month) droughts interspersed among larger precipitation events. Agroforestry practices such as silvopasture may mitigate these impacts of climate change while maintaining economic benefits of both agricultural and forestry practices. This study evaluated the effects of forest-to-silvopasture (i.e., 50% thinning) conversion on the components of evapotranspiration (transpiration, rainfall interception, and soil evaporation) during the growing season of 2016. The study coincided with a late-summer drought throughout the northeastern U.S., which allowed us to also evaluate the effects of forest-to-silvopasture conversion on drought responses of multiple tree species, including Pinus strobus, …
Determination Of Timeliness Cost Using Method Of Average Workability Robability Based On Reliability Function Of Farm Tractors, Mohammad Poozesh, Javad Tarighi
Determination Of Timeliness Cost Using Method Of Average Workability Robability Based On Reliability Function Of Farm Tractors, Mohammad Poozesh, Javad Tarighi
Emirates Journal for Engineering Research
There is an optimum time for implementing field operation of a crop in each region. If the operation were accomplished sooner or later, it might cause a reduction in yield quantity and quality that is named timeliness cost. The purpose of this study is to survey the timeliness cost of harvesting operation of sugar cane based on reliability function of MF285 tractors operating in Debal Khazaei Agro-Industry Co. in Khuzestan, a province of Iran. MF285 tractors have low reliability in Iran, and due to their low reliability have an uncertainty in implementation of farm operation, though it is not …
Smokejumper Obituary: Eaton, John William "Bill" (Redding 1963), National Smokejumper Association
Smokejumper Obituary: Eaton, John William "Bill" (Redding 1963), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Modeling Post-Fire Successional Trajectories Under Climate Change In Interior Alaska Using Landis Ii, Shelby A. Weiss
Modeling Post-Fire Successional Trajectories Under Climate Change In Interior Alaska Using Landis Ii, Shelby A. Weiss
Systems Science Friday Noon Seminar Series
Alaska boreal forest ecosystems are experiencing a greater frequency of wildfire relative to the region’s historic fire regime. These increases in fire frequency, as well as annual burned area, increase the probability of forests re-burning within shorter intervals than were experienced historically. Such changes to the fire regime have the potential to shift successional trajectories in this ecosystem. To better understand potential changes in vegetation composition following short-interval, repeat fires, we are using LANDIS-II, a forest landscape model, to simulate changes in forest composition in response to climate change and increasing fire frequency. This seminar will include a description of …
Smokejumper Obituary: Brophy, William B. (Cave Junction 1956), National Smokejumper Association
Smokejumper Obituary: Brophy, William B. (Cave Junction 1956), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Miller, Ralph Menno (Mccall 1945), National Smokejumper Association
Smokejumper Obituary: Miller, Ralph Menno (Mccall 1945), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Meili, Harold W. (Cave Junction 1952), National Smokejumper Association
Smokejumper Obituary: Meili, Harold W. (Cave Junction 1952), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Cromwell, Richard D. (Missoula 1968), National Smokejumper Association
Smokejumper Obituary: Cromwell, Richard D. (Missoula 1968), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Quigley, Gordon Loran (Idaho City 1955), National Smokejumper Association
Smokejumper Obituary: Quigley, Gordon Loran (Idaho City 1955), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Wynn, G. Brent (Idaho City 1956), National Smokejumper Association
Smokejumper Obituary: Wynn, G. Brent (Idaho City 1956), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Dusenbury, Robert "Bob" (Missoula 1946), National Smokejumper Association
Smokejumper Obituary: Dusenbury, Robert "Bob" (Missoula 1946), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Smokejumper Obituary: Smith, Glen T. "Rip" (Idaho City 1954), National Smokejumper Association
Smokejumper Obituary: Smith, Glen T. "Rip" (Idaho City 1954), National Smokejumper Association
Smokejumper Obituaries
No abstract provided.
Remote Sensing Monitoring Of Vegetation Dynamic Changes After Fire In The Greater Hinggan Mountain Area: The Algorithm And Application For Eliminating Phenological Impacts, Zhibin Huang, Chunxiang Cao, Wei Chen, Min Xu, Yongfeng Dang, Ramesh P. Singh, Barjeece Bashir, Bo Xie, Xiaojuan Lin
Remote Sensing Monitoring Of Vegetation Dynamic Changes After Fire In The Greater Hinggan Mountain Area: The Algorithm And Application For Eliminating Phenological Impacts, Zhibin Huang, Chunxiang Cao, Wei Chen, Min Xu, Yongfeng Dang, Ramesh P. Singh, Barjeece Bashir, Bo Xie, Xiaojuan Lin
Mathematics, Physics, and Computer Science Faculty Articles and Research
Fires are frequent in boreal forests affecting forest areas. The detection of forest disturbances and the monitoring of forest restoration are critical for forest management. Vegetation phenology information in remote sensing images may interfere with the monitoring of vegetation restoration, but little research has been done on this issue. Remote sensing and the geographic information system (GIS) have emerged as important tools in providing valuable information about vegetation phenology. Based on the MODIS and Landsat time-series images acquired from 2000 to 2018, this study uses the spatio-temporal data fusion method to construct reflectance images of vegetation with a relatively consistent …
An Integrated Method For Coding Trees, Measuring Tree Diameter, And Estimating Tree Positions, Linhao Sun, Luming Fang, Yuhi Weng, Siqing Zheng
An Integrated Method For Coding Trees, Measuring Tree Diameter, And Estimating Tree Positions, Linhao Sun, Luming Fang, Yuhi Weng, Siqing Zheng
Faculty Publications
Accurately measuring tree diameter at breast height (DBH) and estimating tree positions in a sample plot are important in tree mensuration. The main aims of this paper include (1) developing a new, integrated device that can identify trees using the quick response (QR) code technique to record tree identifications, measure DBH, and estimate tree positions concurrently; (2) designing an innovative algorithm to measure DBH using only two angle sensors, which is simple and can reduce the impact of eccentric stems on DBH measures; and (3) designing an algorithm to estimate the position of the tree by combining ultra-wide band (UWB) …
Modeling Early Responses Of Loblolly Pine Growth To Thinning In The Western Gulf Coastal Plain Region, Yuhi Weng, J. Grogan, Dean W. Coble
Modeling Early Responses Of Loblolly Pine Growth To Thinning In The Western Gulf Coastal Plain Region, Yuhi Weng, J. Grogan, Dean W. Coble
Faculty Publications
Growth response to thinning has long been a research topic of interest in forest science. This study presents the first 3–4 years of response of loblolly pine (Pinus taeda L.) growth to thinning at different intensities. Data were collected from the East Texas Pine Research Project’s region-wide loblolly pine thinning study, which covers a wide variety of stand conditions. Four treatments, light, moderate, and heavy thinning, respectively having 370, 555, and 740 residual trees per hectare after thinning, and an unthinned control, were included. Individual tree diameter at breast height (dbh) and total height were recorded annually for the …
Timber Talk, Vol. 58, No. 1, March 2020
Timber Talk, Vol. 58, No. 1, March 2020
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 58, No. 1, March 2020
Timber Talk, Vol. 58, No. 2, July 2020
Timber Talk, Vol. 58, No. 2, July 2020
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 58, No. 2, Junly2020
Timber Talk, Vol. 58, No. 3, September 2020
Timber Talk, Vol. 58, No. 3, September 2020
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 58, No. 3, September 2020
Fire And Land Cover Change In The Palouse Prairie–Forest Ecotone, Washington And Idaho, Usa, Penelope Morgan, Emily K. Heyerdahl, Eva K. Strand, Stephen C. Bunting, James P. Riser Ii, John T. Abatzoglou, Max Nielsen-Pincus, Mara Johnson
Fire And Land Cover Change In The Palouse Prairie–Forest Ecotone, Washington And Idaho, Usa, Penelope Morgan, Emily K. Heyerdahl, Eva K. Strand, Stephen C. Bunting, James P. Riser Ii, John T. Abatzoglou, Max Nielsen-Pincus, Mara Johnson
Environmental Science and Management Faculty Publications and Presentations
Background: Prairie–forest ecotones are ecologically important for biodiversity and ecological processes. While these ecotones cover small areas, their sharp gradients in land cover promote rich ecological interaction and high conservation value. Our objective was to understand how historical and current fire occurrences and human development influenced the Palouse Prairie–forest ecotone. We used General Land Office survey field notes about the occurrence of bearing trees to locate historical (1870s to 1880s) prairie, pine savanna, and forest at the eastern edge of the bioregion. We combined LANDFIRE Existing Vegetation classes to contrast historical land cover with current land cover. We reconstructed …
Remote Sensing Approaches To Predict Forest Characteristics In Northwest Montana, Ryan P. Rock
Remote Sensing Approaches To Predict Forest Characteristics In Northwest Montana, Ryan P. Rock
Graduate Student Theses, Dissertations, & Professional Papers
Remote sensing can be utilized by land management organizations to save money and time. Mapping vegetation using either aerial photographs or satellite imagery and the applications for forest management are of particular interest to the Montana Department of Natural Resources. In 2018, the organization began a pilot program to test the incorporation of raster analysis of remotely sensed data into their inventory program and had limited success. This analysis identified two areas of improvement: the selection method of inventory plots and the imagery used for classification and metrics. This study found that selecting inventory plots using a generalized random tessellation …
Organizational Influence On Knowledge Co-Production, Evora Dakota Glenn
Organizational Influence On Knowledge Co-Production, Evora Dakota Glenn
Graduate Student Theses, Dissertations, & Professional Papers
Interdisciplinary and transdisciplinary approaches are needed to effectively address the challenges facing our complex social-ecological systems. To meet this need, many approaches, including co-production, have been proposed to overcome the difficult relationship between science and governance, often termed a ‘gap’, which can continue to impede natural resource problem solving. Co-production is an iterative process that engages scientists, managers, and community members in knowledge creation and problem solving. Evidence indicates that participants are more likely to view co-produced knowledge as more salient, legitimate, and credible, and that they are more likely to use it. Evidence also indicates that this iterative and …
Timber Talk, Vol. 58, No. 4, December 2020
Timber Talk, Vol. 58, No. 4, December 2020
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 58, No. 4, December 2020
Smokejumper Magazine, January 2020, National Smokejumper Association
Smokejumper Magazine, January 2020, National Smokejumper Association
Smokejumper and Static Line Magazines
This issue of the National Smokejumper Association (NSA) Smokejumper Magazine contains the following articles: Save a Billion $$ A Year--The New Fire Triangle; Guest Opinion: Defensible Space, A Catch-22; No Available Resources--It's Time to Review Biscuit Fire; On the Road to a National Wildfire Agency, Part 1; Odds and Ends; Oregon Wildfire Response; Smoke from Wildland Fires: Impacts to Public Health; Hey-Anyone Awake Out There?; If It Could Go Wrong, It Did; Blast from the Past; Some Observations on Firefighting in the 21st Century-Let's Not Nitpick Assumptions Here; Sounding Off from the Editor; Hawaii's Medical-Aid-In-Dying Law Eases Former Jumper's Anxiety; …
Protecting Biodiversity On National Forests: The Evolution And Implementation Of Forest Planning Regulations, Anna Wearn
Protecting Biodiversity On National Forests: The Evolution And Implementation Of Forest Planning Regulations, Anna Wearn
Graduate Student Theses, Dissertations, & Professional Papers
In 2012, the U.S. Forest Service (USFS) promulgated new forest planning regulations that significantly altered national forest management. One of the most controversial and important advancements was the inclusion of what were meant to be stronger biodiversity protections. An analysis of USFS’s rationale in revising the biodiversity regulations provides insights into how to interpret the substantively and procedurally new ecosystem and species protections. Examining this regulatory history reveals three key changes to the manner in which national forests are required to manage and monitor biodiversity: 1) a greater reliance on science to inform planning, 2) a new emphasis on ecological …
The Role Of Fire And A Fire-Free Interval In The Restoration Of Upland Oak Communities On The Cumberland Plateau, Kentucky, Jordan Winkenbach
The Role Of Fire And A Fire-Free Interval In The Restoration Of Upland Oak Communities On The Cumberland Plateau, Kentucky, Jordan Winkenbach
Theses and Dissertations--Forestry and Natural Resources
The decline of upland oak (Quercus spp.) communities in our eastern forests has been attributed to the loss of periodic disturbance after decades of fire suppression. As land managers have begun to reintroduce fire, effects on oak regeneration and species composition have varied widely, making it apparent that our understanding of how fire can aid in oak forest management needs refinement. Restoring upland oak communities requires decreasing stand density and opening of the canopy to release shade-intolerant oaks in the understory. This necessitates an extended fire-free interval to allow these oaks to be recruited into larger size classes and …
Long-Term Effects Of Crop-Tree Release On The Growth And Quality Of Upland White Oak Stands, Philip Jay Vogel
Long-Term Effects Of Crop-Tree Release On The Growth And Quality Of Upland White Oak Stands, Philip Jay Vogel
Theses and Dissertations--Forestry and Natural Resources
The alteration of historical disturbance regimes, forest parcelization, and varying goals among landowners all present challenges to oak management in the eastern U.S. Foresters and landowners need tools to promote oak sustainability that are applicable on small forestland holdings and within complex management plans. From this perspective, this research evaluates a crop-tree release study installed in southeastern Kentucky in 1983. The experiment includes four, 2-acre replications of three treatment levels: 20 crop-trees per acre, 34 crop-trees per acre, and a control treatment in which crop-trees were selected but not released. Half-acre measurement plots were installed at the outset of the …
Effects Of Shelterwood And Patch Cut Harvests On A Post White-Nose Syndrome Bat Community In The Cumberland Plateau In Eastern Kentucky, Phillip Lee Arant
Effects Of Shelterwood And Patch Cut Harvests On A Post White-Nose Syndrome Bat Community In The Cumberland Plateau In Eastern Kentucky, Phillip Lee Arant
Theses and Dissertations--Forestry and Natural Resources
The impact of shelterwood and patch cuts harvests on bat communities was tested at three sites in Eastern Kentucky. Shelterwood harvests had 50% of the basal area and understory removed to create a uniform spacing of residual trees. Patch cuts had 1-hectare circular openings created to remove 50% of the basal area creating an aggregated spacing of residual trees. Acoustic detectors were deployed to assess activity levels pre-harvest. Sites were then sampled from 1 – 2 years post-harvest to determine differences. Pre-harvest data revealed little acoustic activity for the Myotis spp. at two sites. The remaining site had high activity …
The Influence Of Landforms And Sampling Approaches On Riparian Buffer Area And Complexity, Houjun Ding
The Influence Of Landforms And Sampling Approaches On Riparian Buffer Area And Complexity, Houjun Ding
Dissertations, Master's Theses and Master's Reports
A riparian area is a zone of interaction between aquatic and terrestrial ecosystems. Delineating accurate riparian management zones (RMZs), often utilized in Best Management Practices (BMPs) for wetlands and stream protection, is important. The Riparian Buffer Delineation Model (RBDM) has been used extensively for accurate RMZs delineation. Utilizing the validated RBDM generates additional questions about riparian area form and function, which will ideally lead to an improved understanding of the ecological process within these zones. This study aims to determine how geomorphic landforms and their associated landscape characteristics influence riparian areas in terms of shape and complexity, whether sampling methods …
Beyond A Mapping Exercise: Inclusion Of Aboriginal Traditional Ecological Knowledge In Parks And Protected Areas Management, David Cook
Theses and Dissertations (Comprehensive)
This paper examines current approaches for Parks and Protected Areas (PPA) managers in incorporating Aboriginal Traditional and Ecological Knowledge (ATEK) into their management plans. This paper focuses on two case-studies. They are Nahanni National Park and Reserve in the Dehcho region of the Northwest Territories, and the Whitefeather Forest Protected Area in the Pikangikum First Nations Traditional Territory in Ontario. They were chosen because of their unique approaches to include Aboriginal communities in the planning process and their designation as UNESCO World Heritage sites. The broader indigenous involvement policies of both Parks Canada and Ontario Parks are examined using academic …