Download or read book The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests written by Julius Valentine Hofmann and published by . This book was released on 1918 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests Classic Reprint written by Julius Valentine Hofmann and published by Forgotten Books. This book was released on 2016-10-19 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests Periodicity Of the seed years is variable; so much so that it can not be considered in any practical application in planning for future forest work. It must, however, be considered in determining when the latest heavy crop Of seed was produced. The forests produce seed sometimes annually and sometimes at periods of two or three years or even more. It is sufficient to know for the purposes of management, whether the latest crop was a sparse, medium, or heavy one. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests written by Herbert George Lampson and published by . This book was released on 1919 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests written by Julius Valentine Hofmann and published by Palala Press. This book was released on 2016-05-16 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book The Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests written by Julius Valentine Hofmann and published by . This book was released on 1918 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in the Biological Sciences Hofmann J V the Importance of Seed Characteristics in the Natural Reproduction of Coniferous Forests 1918 written by University Of Minnesota and published by Wentworth Press. This book was released on 2019-03-23 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Germination Survival and Early Growth of Conifer Seedlings in Two Habitat Types Classic Reprint written by Don Minore and published by Forgotten Books. This book was released on 2018-08-08 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Germination, Survival and Early Growth of Conifer Seedlings in Two Habitat Types Seed germination and seedling survival in the field are as important to natural forest regeneration as are the production and dispersal of seeds. Many seeds are produced and dispersed, but most do not germinate or they fail to survive after germination. This severe seed and seedling mortality multiplies the number of seeds required to obtain natural regeneration. It also acts as a selective factor in determining the genetics of future stands. The relation of dispersed seed populations to established seedling populations is not well known for most high elevation forests in the Pacific Northwest. Production and dispersal of conifer seeds in the Abies amabilis forest zone described by Franklin and Dyrness (1973) have been well studied (carkin and others 1978; Franklin and others 1974; Franklin and Smith 1974a, 1974b), but little work has been done on the fate of those seeds. Sullivan (1978) compared forest regenera tion on clearcuts in several habitat types within the Abies amabilis zone and con cluded that regeneration differed significantly among habitat types, but he did not relate his observations and conclusions to the seed supply. Neither did Halverson and Emmingham who were unable to correlate forest regeneration in the Abies amabilis zone with habitat types, but found extremes in environment to be the most probable cause of regeneration failure. Seidel (1979a) surveyed mixed conifer regeneration on many clearcuts along the east side of the Cascade Range and in the Blue Mountains of Oregon. He measured the variation among plant community types and geographic locations, but did not relate established regeneration to amounts of seed or early seedling mortality and did not derive any ratios for seeds to established seedlings. Seidel (1979b) also studied regeneration after shelterwood cutting in a grand fir (abies grandis (dougl. Ex D. Don) Lindl.) Shasta red fir (abies magnifica var. Shastensis Lemm.) stand in central Oregon. The number of sound seeds collected in his seed traps can be compared to the number of seedlings that became established during the 5-year measurement period to derive seed-to-seedling ratios for four slash treatments under three overstory densities. Those ratios varied from about on bulldozed seedbeds under an overstory with basal area of square meters per hectare to about on undisturbed seedbeds under the same overstory. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The United States Catalog written by and published by . This book was released on 1921 with total page 2202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The United States Catalog Books in Print January 1 1912 written by Marion Effie Potter and published by . This book was released on 1921 with total page 2174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Reproduction of Coniferous Forest Trees written by Andrew Delmar Hopkins and published by . This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Identification of Primary Red Pine Cone Insects Classic Reprint written by John S. Hard and published by Forgotten Books. This book was released on 2018-03-17 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Identification of Primary Red Pine Cone Insects Red pine (pinus resinosa Ait.) is one of the most important species used for reforestation in the Lake States. Because of the high cost and lack of control over genetic quality of commercially collected seed, the National Forest Administration has established seed-production areas in natural stands of trees with desirable lumber-producing characteristics. Since the objective is maximum production of high-quality seed, foresters are concerned with any agent that hinders this objective. One of the most destructive agents of cones and seeds is insects, despite the fact that damage is con fined to the second year of cone development (fig. This guide will familiarize the forester or nurseryman in the Lake States with the damage caused by insects to red pine cones, and enable him to recognize the mature larvae of the various spe cies and understand their relative importance. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The United States Catalog written by Mary Burnham and published by . This book was released on 1928 with total page 1612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Saplings written by Noel Streatfeild and published by Persephone Books. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "First published in 1945 by Collins"--Copyright page.
Download or read book The British Library general catalogue of printed books to 1975 written by British Library and published by . This book was released on 1982 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Anatomy and Morphology of Conifer Tree Seed written by David Kolotelo and published by British Columbia, Nursery and Seed Operations Branch. This book was released on 1997-01-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Ecological Restoration written by Martin R. Perrow and published by Cambridge University Press. This book was released on 2002-09-05 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volumes of this handbook provide a comprehensive account of the emerging and vibrant science of the ecological restoration of both habitats and species. Ecological restoration aims to achieve complete structural and functional, self-maintaining biological integrity following disturbance. In practice, any theoretical model is modified by a number of economic, social and ecological constraints. Consequently, material that might be considered as rehabilitation, enhancement, reconstruction or re-creation is also included. Restoration in Practice provides details of state-of-the-art restoration practice in a range of biomes within terrestrial and aquatic (marine, coastal and freshwater) ecosystems. Policy and legislative issues on all continents are also outlined and discussed. The accompanying volume, Principles of Restoration defines the underlying principles of restoration ecology. The Handbook of Ecological Restoration will be an invaluable resource to anyone concerned with the restoration, rehabilitation, enhancement or creation of habitats in aquatic or terrestrial systems, throughout the world.
