The Effects Of Soil Compaction On The Germination And Growth Of Picea Mariana And Pinus Banksiana
DOWNLOAD
Download The Effects Of Soil Compaction On The Germination And Growth Of Picea Mariana And Pinus Banksiana PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get The Effects Of Soil Compaction On The Germination And Growth Of Picea Mariana And Pinus Banksiana book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
The Effects Of Soil Compaction On The Germination And Growth Of Picea Mariana And Pinus Banksiana
DOWNLOAD
Author : Kristy Vannieuwenhuizen
language : en
Publisher:
Release Date : 2020
The Effects Of Soil Compaction On The Germination And Growth Of Picea Mariana And Pinus Banksiana written by Kristy Vannieuwenhuizen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Soil compaction has long been an issue for the forestry industry. Soil compaction can reduce soil aeration, porosity and drainage, and restrict the growth and success of trees and other plants. The objective of this study is to determine how the degree of soil compaction affects the seed germination and seedling growth of jack pine (Pinus banksiana) and black spruce (Picea mariana). The study was carried out in a greenhouse at the Lakehead University Thunder Bay campus. Silty clay loam soil was used for the study and the treatment consisted of four levels of compaction with the bulk densities of 0.9 g/cm3 (C), 1.1 g/cm3 (C1), 1.2 g/cm3 (C2), and 1.3 g/cm3 (C3). The soil compaction was implemented in buckets of 36 cm in height and 30.2 cm in diameter. Each treatment level was replicated five times. Seed germination was tallied daily. Seedling height and root collar diameter were measured after 18 weeks of seedling growth. Then the seedlings were harvested. The foliage and root systems were scanned and analyzed using the Regen WinSeedle and WinRhizo systems, respectively, and the following parameters were subject to statistical analysis: root length and diameter, total root length, and projected and surface areas of roots, average needle length, average needle width, total leaf area and the number of needles per seedling. The biomass of roots, total biomass, as well as root to shoot ratios, were determined after the samples were dried in a drying oven at 80 C for 48h. It was found that root biomass, total biomass, root to shoot ratios, main root lengths, seedling height, total root length, average root diameter, root surface area, and the number of root tips were significantly affected by soil compaction and were generally significantly different between the two species, except for the root to shoot ratios. While root diameters increased under increased compaction, every other growth parameter faced general downward trends in growth. Under the most severely compacted soil (C3), total root lengths and number of root tips decreased by 64.6% and 76.2%, respectively in Picea mariana. Large reductions in the main root lengths and the number of root tips were found for P. banksiana under the most severely compacted soil as well, with reductions of 46.4% and 46.7%, respectively. The reductions by soil compaction of all the measured growth parameters were greater in P. mariana than in P. banksiana. Overall, this study illustrates that while the growth of both species was negatively affected by all levels of soil compaction, P. banksiana was less sensitive than P. mariana, suggesting that jack pine may have a competitive advantage over black spruce on sites with soil compaction. Therefore, all efforts should be made to avoid or minimize soil compaction in forestry operations to maintain the forest productivity of the site.
The Influence Of Lichens On Seed Germination And Early Seedling Growth Of Jack Pine Pinus Banksiana Lamb Black Spruce Picea Mariana Mill B S P And Trembling Aspen Populus Tremuloides Michx
DOWNLOAD
Author : Darlene Mary Agness O'Brien
language : en
Publisher:
Release Date : 1985
The Influence Of Lichens On Seed Germination And Early Seedling Growth Of Jack Pine Pinus Banksiana Lamb Black Spruce Picea Mariana Mill B S P And Trembling Aspen Populus Tremuloides Michx written by Darlene Mary Agness O'Brien and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Aspen categories.
Bibliography Of Agriculture
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1975
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Agriculture categories.
The Effect Of Ambiol On Growth And Stress Tolerance Of Pinus Banksiana And Picea Mariana Seedlings Microform
DOWNLOAD
Author : Vera Borsos-Matovina
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 1997
The Effect Of Ambiol On Growth And Stress Tolerance Of Pinus Banksiana And Picea Mariana Seedlings Microform written by Vera Borsos-Matovina and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
The Effect Of Ambiol On Growth And Stress Tolerance Of Pinus Banksiana And Picea Mariana Seedlings
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1997
The Effect Of Ambiol On Growth And Stress Tolerance Of Pinus Banksiana And Picea Mariana Seedlings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Post Fire And Post Salvage Regeneration Dynamics Of Picea Mariana Black Spruce And Pinus Banksiana Jack Pine
DOWNLOAD
Author : Tadeusz B. Splawinski
language : en
Publisher:
Release Date : 2010
Post Fire And Post Salvage Regeneration Dynamics Of Picea Mariana Black Spruce And Pinus Banksiana Jack Pine written by Tadeusz B. Splawinski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
The chapters in this thesis examine the post-fire and post-salvage natural regeneration dynamics of Picea mariana (black spruce) and Pinus banksiana (jack pine). The first examines the compaction of the post-fire organic layer by snow and its effects on seedling recruitment. We found that compression occured but at an insufficient rate to seriously increase seedling establishment. There was a positive relationship between the initial thickness of the burned organic layer depth and the subsequent amount of compression. The second chapter examines the post-fire abscission schedule of these two species. We found that seed abscission begins immediately following fire, with jack pine having a faster rate of abscission than black spruce. The third chapter presents a post-fire and post-salvage natural regeneration model that includes (1) the abscission schedule from Chapter two, (2) seed availability as a function of basal area, salvage proportion and timing; (3) seedling survivorship as a function of seed mass, seedbed type frequencies, first summer ash, and granivory; (4) seedling and seed mortality as a function of salvage operations; and (5) re-dispersal of salvaged seeds via a chipper. Simulations indicate that a delay in salvage timing and/or a reduction in salvage proportion can yield adequate natural regeneration densities, thereby foregoing the costly need to plant.
The Effect Of Soil Compaction On The Establishment And Early Growth Of Pitch Pine Pinus Rigida Austrian Pine Pinus Nigra And Norway Spruce Picea Abies
DOWNLOAD
Author : Robert Philip Zisa
language : en
Publisher:
Release Date : 1978
The Effect Of Soil Compaction On The Establishment And Early Growth Of Pitch Pine Pinus Rigida Austrian Pine Pinus Nigra And Norway Spruce Picea Abies written by Robert Philip Zisa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Austrian pine categories.
The Effects From Rootraking On An Upland Piedmont Loblolly Pine Pinus Taeda L Site
DOWNLOAD
Author : George Graham Glass
language : en
Publisher:
Release Date : 1976
The Effects From Rootraking On An Upland Piedmont Loblolly Pine Pinus Taeda L Site written by George Graham Glass and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Forest management categories.
The Effect Of Photoperiod Shortening On Terminal Bud Development And Quality In Pinus Banksiana Picea Mariana And Picea Glauca
DOWNLOAD
Author : Sarah M. Miller
language : en
Publisher:
Release Date : 2016
The Effect Of Photoperiod Shortening On Terminal Bud Development And Quality In Pinus Banksiana Picea Mariana And Picea Glauca written by Sarah M. Miller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Black spruce categories.
Response Of Containerized Black Spruce And Jack Pine Seedlings To Fertilization Rate And Growing Medium
DOWNLOAD
Author : Stephen John Colombo
language : en
Publisher: Maple : Ontario Tree Improvement and Forest Biomass Institute
Release Date : 1988
Response Of Containerized Black Spruce And Jack Pine Seedlings To Fertilization Rate And Growing Medium written by Stephen John Colombo and has been published by Maple : Ontario Tree Improvement and Forest Biomass Institute this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Nature categories.
Despite the presence of handbooks for the production of containerized tree seedlings, the determination of appropriate rates of fertilization remains an inexact science, since the rate and timing of fertilization can be affected by factors such as local variation in water chemistry, growing media, and the environment in each greenhouse. This report presents the results of semi-operational trial of fertilizer rates and growing media to assess for black spruce and jack pine container seedlings; the range of fertilizer concentrations and seedling nutrient contents resulting in best seedling growth; and the effect of fertilization on bud development and fall freezing damage. Black spruce and jack pine seedlings were grown at the Swastika Tree Nursery according to operational greenhouse practices, at 0, 1/3, 1, 3 or 9X the operational fertilization rates for each species in three growing media.