Plant Associations of Region Two 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 Plant Associations of Region Two PDF full book. Access full book title Plant Associations of Region Two by Barry C. Johnston. Download full books in PDF and EPUB format.
Author: Barry C. Johnston
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 412
Get Book Here
Book Description
Author: Barry C. Johnston
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 412
Get Book Here
Book Description
Author: Lari A. Bishop
Publisher:
ISBN:
Category : Corporations
Languages : en
Pages : 50
Get Book Here
Book Description
Author: Paul E. Bierley
Publisher: Grupo Editorial Norma
ISBN: 9780825849664
Category : Composers
Languages : en
Pages : 180
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Conservation of natural resources
Languages : en
Pages : 12
Get Book Here
Book Description
Author: John Martin Miller
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 400
Get Book Here
Book Description
This publication reviews the results of research on the western pine beetle up to July 1, 1952. It shows the progress that has been made in over a half-century of study of this one bark beetle. It also records the trials and errors--the research that ran into blind alleys. The record of this pioneer effort in the field of forest entomology in the United States should be of great help to research workers who are faced with similar problems.
Author: Gerald W. Williams
Publisher: Bloomsbury Publishing USA
ISBN: 031308114X
Category : Political Science
Languages : en
Pages : 481
Get Book Here
Book Description
Established in 1905, The Forest Service is steeped in history, conflict, strong personalities (including Theodore Roosevelt and Gifford Pinchot), and the challenges of managing 193 million acres of national forests and grasslands. This unique federal agency is one that combines forest management with wildlife, fish, recreation, mining, grazing, and hundreds of other uses. It operates in the midst of controversy and change. The original intent was to protect the public forests, protect the water supplies, and, when appropriate, provide timber. Much has changed over the last 100 years including many new laws, but the fact that these lands are still fought over today shows the foresight of politicians, foresters, scientists, and communities. This work brings to light the many and varied activities of the agency that many people know little about in a world that is constantly changing. Written by a former Forest Service national historian, topics discussed in the work include wilderness and the Wilderness Act of 1964, recreation battles and interagency rivalry with the National Park Service, timber management including clearcutting, ecosystem management, roadless area and controversies over RARE and RARE II studies, fish and wildlife management including endangered species before and after the Endangered Species Act of 1973, and mining and the General Mining Act of 1872. It also discusses the future challenges: forest fires, water protection and restoration, recreation, involving the public, and fish and wildlife.
Author: Walter E. Cole
Publisher:
ISBN:
Category : Insect pests
Languages : en
Pages : 64
Get Book Here
Book Description
Author: Elwood L. Shafer
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 72
Get Book Here
Book Description
Author: David C. Chojnacky
Publisher:
ISBN:
Category : Mountain pine beetle
Languages : en
Pages : 16
Get Book Here
Book Description
Two empirical methods for rating susceptibility of mountain pine beetle attack in ponderosa pine were evaluated. The methods were compared to stand data modeled to objectively rate each sampled stand for susceptibly to bark-beetle attack. Data on bark-beetle attacks, from a survey of 45 sites throughout the Colorado Plateau, were modeled using logistic regression to estimate the probability of attack on individual trees from tree and stand variables. The logistic model allowed flexibility to easily scale results up to a stand level for comparison to the empirical methods. The empirical method, developed by Munson and Anhold, most closely correlated to the logistic regression results. However, the Munson/Anhold method rated all 45 study sites as either moderately or highly susceptible to bark-beetle attack, which raises concern about its lack of sensitivity. Future work on evaluating risk of bark-beetle impact should consider more than stand characteristics.
Author: Craig L. Schmitt
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 12
Get Book Here
Book Description
