Download or read book Phases de maturation des semences d pinette blanche picea glauca moench written by Stéphan Mercier and published by . This book was released on 1991 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maturation et indices de maturit des semences d pinette blanche written by Stéphan Mercier and published by . This book was released on 1991 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce document couvre les différents aspects qui se rapportent à la maturation des semences d'épinette blanche et à la détermination de la période de récolte de ses cônes. Il examine particulièrement les points suivants: les facteurs influençant la vitesse de développement des semences et modélisation de la maturation; les périodes de maturation et de récolte des semences; la physiologie de la maturation; et, la méthode d'utilisation des indicateurs de maturité des semences d'épinette blanche.

Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 1992 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masters Abstracts International written by and published by . This book was released on 1993 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Botany written by and published by . This book was released on 1998 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Master s Theses Directories written by and published by . This book was released on 1992 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book tude sur les indices de maturit des c nes et des semences d pinette blanche Picea Glauca Moench Voss written by Morissette, Thomas and published by Québec : Service de la régénération forestière. This book was released on 1987 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Canadian Containerized Tree Seedling Symposium written by J. B. Scarratt and published by . This book was released on 1982 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maturation des graines de l pinette blanche partir du suivi syst matique de 16 acides amin s libres written by Linda Veilleux and published by Sainte-Foy, Québec : Direction de la recherche forestière. This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 2000 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ethnobotany of Western Washington written by Erna Gunther and published by University of Washington Press. This book was released on 1973 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forty poems portraying the moods, sensations, and experiences of childhood.

Download or read book Dendroclimatology written by Malcolm K. Hughes and published by Springer Science & Business Media. This book was released on 2010-10-28 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: A top priority in climate research is obtaining broad-extent and long-term data to support analyses of historical patterns and trends, and for model development and evaluation. Along with directly measured climate data from the present and recent past, it is important to obtain estimates of long past climate variations spanning multiple centuries and millennia. These longer time perspectives are needed for assessing the unusualness of recent climate changes, as well as for providing insight on the range, variation and overall dynamics of the climate system over time spans exceeding available records from instruments, such as rain gauges and thermometers. Tree rings have become increasingly valuable in providing this long-term information because extensive data networks have been developed in temperate and boreal zones of the Earth, and quantitative methods for analyzing these data have advanced. Tree rings are among the most useful paleoclimate information sources available because they provide a high degree of chronological accuracy, high replication, and extensive spatial coverage spanning recent centuries. With the expansion and extension of tree-ring data and analytical capacity new climatic insights from tree rings are being used in a variety of applications, including for interpretation of past changes in ecosystems and human societies. This volume presents an overview of the current state of dendroclimatology, its contributions over the last 30 years, and its future potential. The material included is useful not only to those who generate tree-ring records of past climate-dendroclimatologists, but also to users of their results-climatologists, hydrologists, ecologists and archeologists. ‘With the pressing climatic questions of the 21st century demanding a deeper understanding of the climate system and our impact upon it, this thoughtful volume comes at critical moment. It will be of fundamental importance in not only guiding researchers, but in educating scientists and the interested lay person on the both incredible power and potential pitfalls of reconstructing climate using tree-ring analysis.’, Glen M. MacDonald, UCLA Institute of the Environment, CA, USA ‘This is an up-to-date treatment of all branches of tree-ring science, by the world’s experts in the field, reminding us that tree rings are the most important source of proxy data on climate change. Should be read by all budding dendrochronology scientists.’, Alan Robock, Rutgers University, NJ, USA

Download or read book Inorganic Plant Nutrition written by A. Läuchli and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book bearing the title of this volume, Inorganic Plant Nutrition, was written by D. R. HOAGLAND of the University of California at Berkeley. As indicated by its extended title, Lectures on the Inorganic Nutrition of Plants, it is a collection of lectures - the JOHN M. PRATHER lectures, which he was invited in 1942 to give. at Harvard University and presented there between April 10 and 23 of that year - 41 years before the publication of the present volume. They were not "originally intended for publication" but fortunately HOAGLAND was persuaded to publish them; the book appeared in 1944. It might at first blush seem inappropriate to draw comparisons between a book embodying a set of lectures by a single author and an encyclopedic volume with no less than 37 contributors. But HOAGLAND'S book was a compre hensive account of the state of this science in his time, as the present volume is for ours. It was then still possible for one person, at least for a person of HOAGLAND'S intellectual breadth and catholicity of interests, to encompass many major areas of the entire field, from the soil substrate to the metabolic roles of nitrogen, potassium, and other nutrients, and from basic scientific topics to the application of plant nutritional research in solving problems encountered in the field.

Download or read book Indicator Plant Species in Canadian Forests written by Gordon S. Ringius and published by UBC Press. This book was released on 2002-02-02 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This field guide provides an introduction to the concept of plants as indicators of environmental conditions within Canada's forests. It presents information on the identification, ecology, geographic range, and indicator value of 80 selected vascular plants, mosses and lichens."

Download or read book Charcoal Identification written by R. C. Koeppen and published by . This book was released on 1972 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Peatlands and Environmental Change written by Dan Charman and published by Wiley. This book was released on 2002-11-22 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to an awareness of peatlands as a diminishing resource, peatland conservation and rehabilitation has become an important study area. Peatlands and Environmental Change offers a new approach by considering peatlands as a whole ecosystem, and thereby provides a better understanding of the importance and the consequences of the functioning of peatlands. Contents include: * Peat and peatlands * Peat landforms and structure * Peatland hydrology and ecology * Origins and pest initiation * Peat accumulation * The peatland archive: palaeoenvironmental evidence * Autogenic change * Allogenic change * Peatland - environmental feedbacks * Values, exploitation and human impacts * Conservation management and restoration

Download or read book Wood anatomy written by Katarina Čufar and published by . This book was released on 2009 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: