Weather, Logging, and Tree Growth Associated with Fir Engraver Attack Scars in White Fir PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Weather, Logging, and Tree Growth Associated with Fir Engraver Attack Scars in White Fir PDF full book. Access full book title Weather, Logging, and Tree Growth Associated with Fir Engraver Attack Scars in White Fir by George T. Ferrell. Download full books in PDF and EPUB format.
Author: George T. Ferrell
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 20
Get Book Here
Book Description
Author: George T. Ferrell
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 20
Get Book Here
Book Description
Author: George T. Ferrell
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Craig D. Whitesell
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 182
Get Book Here
Book Description
Ohia forest decline-its severity and rate of spread-was studied by aerial photographic techniques on a 197,000-acre (80,000-ha) portion of the island of Hawaii. In 1954, only 300 acres (121 ha) showed signs of severe decline; by 1972, the acreage of severely affected forest had increased to 85,200 acres (34,480 ha). Rate of decline and current severity were related to mean annual precipitation and to elevation. The epidemic is continuing. Some forests on other Hawaiian islands also display decline symptoms.
Author: George T. Ferrell
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 582
Get Book Here
Book Description
Author: Donald Richard Owen
Publisher:
ISBN:
Category :
Languages : en
Pages : 180
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2834
Get Book Here
Book Description
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 596
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 584
Get Book Here
Book Description
Author: Alan A. Berryman
Publisher: Springer Science & Business Media
ISBN: 1468450808
Category : Science
Languages : en
Pages : 284
Get Book Here
Book Description
This book is intended as a general text for undergraduates studying the manage ment of forest insect pests. It is divided into four parts: insects, ecology, manage ment, and practice. Part I, Insects, contains two chapters. The first is intended to provide an overview of the general attributes of insects. Recognizing that it is impossible to adequately treat such a diverse and complex group of organisms in such a short space, I have attempted to highlight those insectan characteristics that make them difficult animals to combat. I have also tried to expose the insects' weak points, those attributes that make them vulnerable to manipulation by human actions. Even so, this first chapter will seem inadequate and sketchy to many of my colleagues. Ideally, this book should be used in conjunction with a laboratory manual covering insect anatomy, physiology, biology, behavior, and classifica tion in much greater depth-in fact, this is how I organize my forest entomology course. It is hoped that this first chapter will provide nonentomologists with a general feel for the insects and with a broad understanding of their strengths and weaknesses, while Chapter 2 will provide a brief overview of the diverse insect fauna that attacks the various parts of forest trees and their products.
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
Get Book Here
Book Description
