Download or read book Growth and Physiology of Northern Red Oak Quercus Rubra L and Competing Tree Seedlings Along a Light Availability Gradient in Mesic Hardwood Forests of Southern Wisconsin written by Christopher M. Kaelke and published by . This book was released on 1996 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 1997 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seedling Leaf Damage Allocation to Growth written by Dayna Berenice De La Cruz and published by . This book was released on 2021 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Northern red oak (Quercus rubra) is an ecologically important species in forests of the northeastern U.S. Red oak seedlings are critical to study as their life stage is the toughest age for survival. Red oak seedling leaf damage and growth allocation are potentially impacted by the nearby mature red oak trees due to feedbacks with pathogens and herbivores, impacted by the abundance of other red oak seedlings with whom they might compete with or impacted by the available canopy light. We used a field experiment involving the transplanting of seedlings within Harvard Forest to investigate these three environmental factors on red oak seedling leaf damage and biomass allocation. We measured seedling leaf damage levels and calculated biomass ratios to measure allocation. Results suggest that the presence of nearby mature red oak trees increased the herbivory stress on red oak seedlings, which could potentially impact longerterm survival. Seedling leaf and stem biomass allocation was explained by leaf damage but not by any other factors in this experiment. Knowing how environmental factors affect seedling biomass allocation could help scientist better understand their responses across structurally diverse ecosystems and find more effective ways to predict seedling survival and the future composition of the forest.
Download or read book Response of Tree Seedlings to Extended Photoperiods written by Ralph A. Read and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response to Crop tree Release by 7 year old Stems of Red Maple Stump Sprouts and Northern Red Oak Advance Reproduction written by George R. Trimble (Jr.) and published by . This book was released on 1974 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lateral Root Morphology written by John L. Ruehle and published by . This book was released on 1986 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of fertilization on shoot growth of defoliated and under defoliated red oak seedlings written by Johnson Parker and published by . This book was released on 1978 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Herbaceous Layer in Forests of Eastern North America written by Frank Gilliam and published by Oxford University Press. This book was released on 2014-04 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive existing volume of multidisciplinary research by top ecologists on the herbaceous layer of forests.
Download or read book Production System Factors Affecting Rooting and Subsequent Performance of Northern Red Oak Quercus Rubra L Cuttings for Outplanting written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Northern red oak (NRO), Quercus rubra L., is a valuable tree species for timber, wildlife, restoration, and urban forestry. Seed production and growth responses from different maternal sources can be widely variable. Rooting choice stem cuttings of NRO could prove to be a time-saving nursery practice, yielding prime candidates for outplanting. This study sought to develop effective protocols to root NRO stem cuttings at high frequencies and to examine the effects of several factors during rooting and subsequent containerized growth. Supplemental light and heat were administered to determine the effects of artificially extending the growing season of successfully rooted cuttings. Different container sizes were used to determine which size encouraged optimum containerized growth and survival. In addition, shoot production enhancement was studied through pruning of field grown stock seedlings so that stem cutting material could be readily available throughout the growing season; different seedling sources were used to examine provenance variability for shoot production. Also, early (ES) and late season (LS) cuttings were taken to determine the viability of rooting at different times during the growing season. After two seasons of containerized growth, final measurements of NRO rooted cuttings were recorded to determine efficacy of prior treatments. Geographic source and prune height treatments were both found to have significant impact on the number of new shoots generated by NRO stock plants. We found large stem caliper may enhance donor plant ability to generate new shoots for rooting as compared to small stem caliper. Geographic source and prune height treatment significantly affected rooting ability of ES cuttings, which rooted at 64% overall. Rooting percentages were lower for LS stem cuttings (53% overall), but showed the possibility of LS rooting for nursery operations; prune height alone was statistically significant for rooting ability of LS cuttings. During t.
Download or read book Causes and Consequences of Species Diversity in Forest Ecosystems written by Aaron M. Ellison and published by MDPI. This book was released on 2019-07-30 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Causes and Consequences of Species Diversity in Forest Ecosystems that was published in Forests
Download or read book Poplars and Willows written by Jud G. Isebrands and published by CABI. This book was released on 2014-02-12 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poplars and willows form an important component of forestry and agricultural systems, providing a wide range of wood and non-wood products. This book synthesizes research on poplars and willows, providing a practical worldwide overview and guide to their basic characteristics, cultivation and use, issues, problems and trends. Prominence is given to environmental benefits and the importance of poplar and willow cultivation in meeting the needs of people and communities, sustainable livelihoods, land use and development.
Download or read book The Nature of Plant Communities written by J. Bastow Wilson and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review of the role of species interactions in the process of plant community assembly.
Download or read book The Physiological Ecology of Shade Tolerance in Northern Hardwood Seedlings written by Michael Burt Walters and published by . This book was released on 1994 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Succession written by D. C. West and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Succession-nothing in plant, community, or ecosystem ecology has been so elaborated by terminology, so much reviewed, and yet so much the center of controversy. In a general sense, every ecologist uses the concept in teaching and research, but no two ecologists seem to have a unified concept of the details of succession. The word was used by Thoreau to describe, from a naturalist's point of view, the general changes observed during the transition of an old field to a forest. As data accumulated, a lengthy taxonomy of succession developed around early twentieth century ecologists such as Cooper, Clements, and Gleason. Now, nearer the end of the century, and after much discussion concerning the nature of vegetation communities, where do ecologists stand with respect to knowledge of ecological succession? The intent of this book is not to rehash classic philosophies of succession that have emerged through the past several decades of study, but to provide a forum for ecologists to present their current research and present-day interpretation of data. To this end, we brought together a group of scientists currently studying terrestrial plant succession, who represent research experience in a broad spectrum of different ecosystem types. The results of that meeting led to this book, which presents to the reader a unique summary of contemporary research on forest succession.
Download or read book The Ecology of Hydric Hammocks written by Susan W. Vince and published by . This book was released on 1989 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trees in a Changing Environment written by Michael Tausz and published by Springer. This book was released on 2014-08-26 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delivers current state-of-the-science knowledge of tree ecophysiology, with particular emphasis on adaptation to a novel future physical and chemical environment. Unlike the focus of most books on the topic, this considers air chemistry changes (O3, NOx, and N deposition) in addition to elevated CO2 effects and its secondary effects of elevated temperature. The authors have addressed two systems essential for plant life: water handling capacity from the perspective of water transport; the coupling of xylem and phloem water potential and flow; water and nutrition uptake via likely changes in mycorrhizal relationships; control of water loss via stomata and its retention via cellular regulation; and within plant carbon dynamics from the perspective of environmental limitations to growth, allocation to defences, and changes in partitioning to respiration. The authors offer expert knowledge and insight to develop likely outcomes within the context of many unknowns. We offer this comprehensive analysis of tree responses and their capacity to respond to environmental changes to provide a better insight in understanding likelihood for survival, as well as planning for the future with long-lived, stationary organisms adapted to the past: trees.
Download or read book The Supporting Roots of Trees and Woody Plants Form Function and Physiology written by A. Stokes and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comprises the proceedings of the first International Conference devoted to the structural roots of trees and woody plants. 'The Supporting Roots - Structure and Function,' 20-24 July 1998, Bordeaux, France. The meeting was held under the auspices ofIUFRO WPS 2. 01. 13 'Root Physiology and Symbiosis,' and its aim was to bring together scientific researchers, foresters and arboriculturalists, to discuss current problems in structural root research and disseminate knowledge to an audience from a wide disciplinary background. For the first time in an international conference, emphasis was placed on presenting recent reseach in the field of tree anchorage mechanics and root biomechanics. The way in which tree stability can be affected by root system symmetry and architecture was addressed, as well as how movement during wind sway can influence the development and shape of woody roots. The role of different nursery and planting techniques was discussed, in relation to effects on root system form and development. Root response to different environmental stresses, including water, temperature, nutrient and mechanical stress was addressed in detail. The structure and function of woody roots was also considered at different levels, from coarse to fine roots, with several papers discussing the interaction between roots and the rhizosphere. One of the conference highlights was the presentation of new methods in root research, by a series of workshops held at LRBB-INRA, Pierroton, on the northern border of the Gascony forest.
