National Union Catalog

National Union Catalog PDF Author:
Publisher:
ISBN:
Category : Union catalogs
Languages : en
Pages : 1028

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Book Description
Includes entries for maps and atlases.

National Union Catalog

National Union Catalog PDF Author:
Publisher:
ISBN:
Category : Union catalogs
Languages : en
Pages : 1028

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Book Description
Includes entries for maps and atlases.

The Zoological Record

The Zoological Record PDF Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 960

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Book Description
"Zoological Record is published annually in separate sections. The first of these is Comprehensive Zoology, followed by sections recording a year's literature relating to a Phylum or Class of the Animal Kingdom. The final section contains the new genera and subgenera indexed in the volume." Each section of a volume lists the sections of that volume.

Agrindex

Agrindex PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 802

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Book Description


Newsletter

Newsletter PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 400

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Book Description


Managing Cover Crops Profitably (3rd Ed. )

Managing Cover Crops Profitably (3rd Ed. ) PDF Author: Andy Clark
Publisher: DIANE Publishing
ISBN: 1437903797
Category : Technology & Engineering
Languages : en
Pages : 248

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Book Description
Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.

The Larch Sawfly

The Larch Sawfly PDF Author:
Publisher:
ISBN:
Category : Forest insects
Languages : en
Pages : 8

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Book Description


Wildlife Habitats in Managed Forests

Wildlife Habitats in Managed Forests PDF Author: Jack Ward Thomas
Publisher:
ISBN:
Category : Forest animals
Languages : en
Pages : 528

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Book Description
That is what this book is about. It is a framework for planning, in which habitat is the key to managing wildlife and making forest managers accountable for their actions. This book is based on the collective knowledge of one group of resource professionals and their understanding about how wildlife relate to forest habitats. And it provides a longoverdue system for considering the impacts of changes in forest structure on all resident wildlife.

Current Ornithology Volume 17

Current Ornithology Volume 17 PDF Author: Charles F. Thompson
Publisher: Springer Science & Business Media
ISBN: 1441964215
Category : Science
Languages : en
Pages : 201

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Book Description
Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.

The Economics of Forest Disturbances

The Economics of Forest Disturbances PDF Author: Thomas P. Holmes
Publisher: Springer Science & Business Media
ISBN: 1402043708
Category : Technology & Engineering
Languages : en
Pages : 424

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Book Description
by Peter J. Roussopoulos, Director, Southern Research Station The world and its ecosystems are repeatedly punctuated by natural disturbances, and human societies must learn to manage this reality Often severe and unp- dictable, dynamic natural forces disrupt human welfare and alter the structure and composition of natural systems Over the past century, land management ag- cies within the United States have relied on science to improve the sustainable management of natural resources Forest economics research can help advance this scientifc basis by integrating knowledge of forest disturbance processes with their economic causes and consequences As the twenty-frst century unfolds, people increasingly seek the goods and services provided by forest ecosystems, not only for wood supply, clean water, and leisure pursuits, but also to establish residential communities that are removed from the hustle and bustle of urban life As vividly demonstrated during the past few years, Santa Ana winds can blow wildfres down from the mountains of California, incinerating homes as readily as vegetation in the canyons below Hurricanes can fatten large swaths of forest land, while associated foods create havoc for urban and rural residents alike Less dramatic, but more insidious, trees and forest stands are succumbing to exotic insects and diseases, causing economic losses to private property values (including timber) as well as scenic and recreation values As human demands on public and private forests expand, science-based solutions need to be identifed so that social needs can be balanced with the vagaries of forest disturbance processes

Tree Root Systems and Their Mycorrhizas

Tree Root Systems and Their Mycorrhizas PDF Author: D. Atkinson
Publisher: Springer Science & Business Media
ISBN: 9400968337
Category : Science
Languages : en
Pages : 503

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Book Description
Proceedings of a Meeting of the IUFRO, Working Party on Root Physiology and Symbiosis