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Improving Post Wildfire Seeding Success Using Germination Modeling And Seed Enhancement Technologies
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Book Synopsis Improving Post-wildfire Seeding Success Using Germination Modeling and Seed Enhancement Technologies by : William Charles Richardson
Download or read book Improving Post-wildfire Seeding Success Using Germination Modeling and Seed Enhancement Technologies written by William Charles Richardson and published by . This book was released on 2018 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arid and semi-arid rangelands are important ecosystems that are consistently degraded through disturbances such as wildfires. After such disturbances, the invasion and dominance of annual grasses, like cheatgrass (Bromus tectorum L.), can lead to an overall loss of ecosystem productivity and an increase in fire frequency. To reduce weed dominance, native and introduced perennials species are typically be seeded in the fall. High mortality is seen from these seeded plant communities due to germinated seed being exposed to freezing, drought, fungal pathogens, and other biotic and abiotic stressors during winter months. We utilized wet-thermal accumulation models to first further validate the theory that germination from seeded plant populations occurs during periods of high environmental stress, and then to establish the practicality of abscisic acid seed coatings as a technology that could circumvent winter germination and mortality. In Chapter 1, we developed an excel workbook called Auto-Germ using Visual Basic for Applications, which allows users to estimate field germination timing based on wet-thermal accumulation models and field data. We then used Auto-Germ to model seed germination timing for 10 different species, across 6 years, and 10 Artemisia-steppe sites in the Great Basin of North America. We estimated that for the majority of the species analyzed, a mid to late-winter planting was required on average for the majority of the population to germinate in the spring. This planting time would be logistically difficult for many land managers, due to freezing and/or saturated soil conditions. In Chapter 2, we utilized wet-thermal accumulation models to evaluate the use of abscisic acid (ABA) to delay germination of Pseudoroegneria spicata (Pursh) Á. Löve (perennial native bunchgrass) across 4 years and 6 Artemisia-steppe sites. Germination models estimated that ABA seed treatments typically would delay germination of fall sown seed to late winter or early spring when conditions may be more favorable for plant establishment. Based on these results, we recommend both the use of wetthermal accumulation models as a tool in educating researchers and land managers in knowing when seeding practices should occur, and the further study of ABA seed coatings as a technology that may improve plant establishment of fall sown seeds.
Book Synopsis Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-fire Seeding Failure by : Ryan Scott Call
Download or read book Emerging Seed Enhancements to Reduce the Risk of Sagebrush Post-fire Seeding Failure written by Ryan Scott Call and published by . This book was released on 2018 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sagebrush (Artemisia spp.) steppe is undergoing rapid ecological change. The degradation of sagebrush steppe rangelands has resulted in the listing of more than 350 animals and plants as species of conservation concern. In addition, there has been a decrease in recreational values, reduced forage production, degraded water resources, and an increase in fire frequency. In the sagebrush steppe, success rates for seeding sagebrush after wildfire are notoriously low. Not only are sagebrush seeds hard to sow due to their small size and associated flower parts, but seedlings are exposed to numerous stresses that lowers their survivability. To improve sowing efficiency and reduce the associated stresses to seedling development we use seed enhancement technologies. In Chapter 1, we explain how a rotary seed coater can be used to agglomerate and apply enhancements to Wyoming big sagebrush (Artemisia tridentata spp. wyomingensis) seed. Using a mix of compost and clay we used a rotary seed coater to create small uniform agglomerates that allowed for enhancements to be applied to the seed. Our study demonstrated that agglomerates have no negative effects on seed germination and increased the overall flow of seed. In Chapter 2, we analyzed the addition of the plant hormone abscisic acid (ABA) in seed coatings. This hormone may delay seed germination and allow seedlings to avoid mortality due to over-winter freezing. We determined effects of different concentrations of ABA on total germination and timing of germination. Using a wet-thermal accumulation model, we estimated germination timing of seeds using soil temperature and water potential data for six different sites in the Great Basin. These models illustrate the variation in germination timing across the Great Basin. From our results we proposed the idea of using ABA to create a bet- hedging strategy in seed mixes to increase the probability that some seeds would germinate when conditions are favorable for seedling success.
Book Synopsis Improving Reseeding Success After Catastrophic Wildfire with Surfactant Seed Coating Technology by : Daniel L. Zvirzdin
Download or read book Improving Reseeding Success After Catastrophic Wildfire with Surfactant Seed Coating Technology written by Daniel L. Zvirzdin and published by . This book was released on 2014 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of soil surfactants in wildfire-affected ecosystems has been limited due to logistical and economic constraints associated with the standard practice of using large quantities of irrigation water as the surfactant carrier. We tested a potential solution to this problem that uses seed coating technology to harness the seed as the carrier. Through this approach, precipitation leaches the surfactant from the seed into the soil where it absorbs onto the soil particles and ameliorates water repellency within the seeds microsite. We evaluated this technology in a burned, highly water repellent, piñon-juniper woodland. Within a randomized complete block design, we separately seeded two bunchgrass species (Indian ricegrass and crested wheatgrass), whose seeds was either left uncoated or coated with a surfactant blend of alkylpolyglycoside and ethylene oxide/propylene oxide block copolymer. Plots were monitored through two growing seasons. In the spring after seeding, plant density and cover in the surfactant coated treatments were approximately 3-fold higher than the uncoated treatments. Two years after seeding, differences in plant density between the treatments decreased slightly, with the surfactant coated treatments having 2.8-fold higher density, as compared to the uncoated treatments. Over this same period, relative differences in cover between the treatments had increased, with surfactant coated treatments having 3.4-fold higher cover than the uncoated treatments. Overall, the results of this study demonstrate the ability of surfactant seed coating technology to improve seedling emergence and establishment. Future research is merited for evaluating the technology at larger-scales and within different ecosystems.
Book Synopsis Fire Effects on Soils and Restoration Strategies by : A Cerda
Download or read book Fire Effects on Soils and Restoration Strategies written by A Cerda and published by CRC Press. This book was released on 2009-01-05 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published a decade after Fires Effects on Ecosystems by DeBano, Neary, and Folliott (1998), and builds on their foundation to update knowledge on natural post-fire processes and describe the use and effectiveness of various restoration strategies that may be applied when human intervention is warranted. The chapters in this book,
Book Synopsis Effects of Chaparral-to-grass Conversion on Wildfire Suppression Costs by : Thomas Capnor Brown
Download or read book Effects of Chaparral-to-grass Conversion on Wildfire Suppression Costs written by Thomas Capnor Brown and published by . This book was released on 1974 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology Abstracts written by and published by . This book was released on 1987 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes journal articles in ecology and environmental science. Nearly 700 journals are indexed in full or in part, and the database indexes literature published from 1982 to the present. Coverage includes habitats, food chains, erosion, land reclamation, resource and ecosystems management, modeling, climate, water resources, soil, and pollution.
Author :Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) Publisher : ISBN 13 : Total Pages :48 pages Book Rating :4.:/5 (3 download)
Book Synopsis USDA Forest Service Research Paper RM. by : Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Download or read book USDA Forest Service Research Paper RM. written by Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) and published by . This book was released on 1974 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) Publisher : ISBN 13 : Total Pages :742 pages Book Rating :4.3/5 (77 download)
Book Synopsis U.S. Forest Service Research Paper RM. by : Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Download or read book U.S. Forest Service Research Paper RM. written by Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) and published by . This book was released on 1973 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Silviculture of Central and Southern Rocky Mountain Forests by : Robert R. Alexander
Download or read book Silviculture of Central and Southern Rocky Mountain Forests written by Robert R. Alexander and published by . This book was released on 1974 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis British Columbia Rangeland Seeding Manual by : Allan Dobb
Download or read book British Columbia Rangeland Seeding Manual written by Allan Dobb and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Herbicides and Plant Physiology by : Andrew H. Cobb
Download or read book Herbicides and Plant Physiology written by Andrew H. Cobb and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicides make a spectacular contribution to modern crop production. Yet, for the development of more effective and safer agrochemicals, it is essential to understand how these compounds work in plants and their surroundings. This expanded and fully revised second edition of Herbicides and Plant Physiology provides a comprehensive and up-to-date account of how modern herbicides interact with target plants, and how they are used to manage crop production. In addition, the text: Provides a current account of the importance of weeds to crop yield and quality; Describes how new herbicides are discovered and developed; Examines precise sites of herbicide action and mechanisms of herbicide selectivity and resistance; Reviews commercial and biotechnological applications, including genetically engineered herbicide resistance in crops; Suggests new areas for future herbicide development; Includes many specially prepared illustrations. As a summary of diverse research information, this second edition of Herbicides and Plant Physiology is a valuable reference for students and researchers in plant physiology, crop production/protection, plant biochemistry, biotechnology and agriculture. All libraries in universities, agricultural colleges and research establishments where these subjects are studied and taught will need copies of this excellent book on their shelves.
Book Synopsis OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 208: Terrestrial Plant Test: Seedling Emergence and Seedling Growth Test by : OECD
Download or read book OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 208: Terrestrial Plant Test: Seedling Emergence and Seedling Growth Test written by OECD and published by OECD Publishing. This book was released on 2006-08-17 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline is designed to assess effects on seedling emergence and early growth of higher plants following exposure to the test substance applied to the soil surface or into the soil. Seeds are placed in contact with soil treated with the ...
Book Synopsis Tree Seedling Growth, Survival and Morphology in Response to Landscape Level Variation in Soil Resource Availability by : Laura Ann Schreeg
Download or read book Tree Seedling Growth, Survival and Morphology in Response to Landscape Level Variation in Soil Resource Availability written by Laura Ann Schreeg and published by . This book was released on 2002 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Prescribed Fire in Southern Ecosystems by : Thomas A. Waldrop
Download or read book Introduction to Prescribed Fire in Southern Ecosystems written by Thomas A. Waldrop and published by Government Printing Office. This book was released on 2018-03-29 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prescribed burning is an important tool throughout Southern forests, grasslands, and croplands. The need to control fire became evident to allow forests to regenerate. This manual is intended to help resource managers to plan and execute prescribed burns in Southern forests and grasslands. A new appreciation and interest has developed in recent years for using prescribed fire in grasslands, especially hardwood forests, and on steep mountain slopes. Proper planning and execution of prescribed fires are necessary to reduce detrimental effects, such as the impacts on air and downstream water quality. Check out these related products: Trees at Work: Economic Accounting for Forest Ecosystem Services in the U.S. South can be found here: https://bookstore.gpo.gov/products/trees-work-economic-accounting-forest-ecosystem-services-us-south Soil Survey Manual 2017 is available here: https://bookstore.gpo.gov/products/soil-survey-manual-march-2017 Quantifying the Role of the National Forest System Lands in Providing Surface Drinking Water Supply for the Southern United States is available here: https://bookstore.gpo.gov/products/quantifying-role-national-forest-system-lands-providing-surface-drinking-water-supply Fire Management Today print subscription is available here: https://bookstore.gpo.gov/products/fire-management-today Wildland Fire in Ecosystems: Fire and Nonnative Invasive Plants can be found here: https://bookstore.gpo.gov/products/wildland-fire-ecosystems-fire-and-nonnative-invasive-plants
Download or read book Fire Effects Guide written by and published by . This book was released on 1994 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-Fire Management and Restoration of Southern European Forests by : Francisco Moreira
Download or read book Post-Fire Management and Restoration of Southern European Forests written by Francisco Moreira and published by Springer Science & Business Media. This book was released on 2011-11-02 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: In spite of all the efforts made in fire prevention and suppression, every year about 45 000 forest fires occur in Europe, burning ca. 0.5 million hectares of forests and other rural lands. The management of these burned forests has been given much less attention than fire prevention or fire suppression issues, but the post-fire management of burned areas raises strong concerns (economic and social impacts, soil erosion and water quality, biodiversity loss, forest restoration). Although there are a few publications which address post-fire management, the focus of these has been either on general approaches to restoration or specific topics such as preventing post-fire soil erosion. This book is about the post-fire management of fire-prone forest types in southern Europe. It provides the first comprehensive overview of the topic, ranging from stand-level to landscape-level management, and from emergency actions to long-term restoration approaches.
Book Synopsis Modern Seed Technology by : Alan G Taylor
Download or read book Modern Seed Technology written by Alan G Taylor and published by . This book was released on 2021-10-25 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satisfying the increasing number of consumer demands for high-quality seeds with enhanced performance is one of the most imperative challenges of modern agriculture. In this view, it is essential to remember that the seed quality of crops does not improve.
