EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book General Technical Report RM

Download or read book General Technical Report RM written by and published by . This book was released on 1990 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Plant Associations of Arizona and New Mexico  Forests

Download or read book Plant Associations of Arizona and New Mexico Forests written by and published by . This book was released on 1997 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Managing Gambel Oak in Southwestern Ponderosa Pine Forests

Download or read book Managing Gambel Oak in Southwestern Ponderosa Pine Forests written by Scott R. Abella and published by . This book was released on 2008 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gambel oak (Quercus gambelii) is a key deciduous species in southwestern ponderosa pine (Pinus ponderosa) forests and is important for wildlife habitat, soil processes, and human values. This report (1) summarizes Gambel oak's biological characteristics and importance in ponderosa pine forests, (2) synthesizes literature on changes in tree densities and fire frequencies since Euro-American settlement in pine-oak forests, (3) suggests management prescriptions for accomplishing various oak management objectives (for example, increasing diameter growth or acorn production), and (4) provides an appendix containing 203 Gambel oak literature citations organized by subject. Nine studies that reconstructed Gambel oak density changes since settlement in the late 1800s reported that densities of small oaks have escalated, with increases ranging from 4- to more than 63-fold. A possible argument for passive oak management, that overall oak abundance has decreased, is not supported by published research. Manipulating oak growth forms is one of the main means for managing oak and ecosystem components affected by oak. Published research has classified variants of three basic oak growth forms: shrubby thickets of small stems, pole-sized clumps, and large trees. Burning and cutting constitute major prescriptions for manipulating these growth forms, whereas pine thinning has most consistently increased oak diameter growth for promoting large oaks. Because of their high ecological value, large, old oaks should be retained in any management prescription. Sufficient research has been published on which to base some oak management prescriptions, but additional research on poorly understood aspects of oak's ecology is needed to refine and improve oak management.

Book Eastside Forest Ecosystem Health Assessment

Download or read book Eastside Forest Ecosystem Health Assessment written by and published by . This book was released on 1994 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Assessing Forest Ecosystem Health in the Inland West

Download or read book Assessing Forest Ecosystem Health in the Inland West written by David L. Adams and published by Routledge. This book was released on 2018-12-19 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inland West, their historical origins, assessments of available management tools, and analyses of the various choices available to policymakers. Its goal is to help people understand the Inland West forests so that public policies can reflect a constructive and realistic framework in which forests can be managed for sustained health. This resource is the product of a scientific workshop where 35 participants, including scientists, resource managers, administrators, and environmentalists, addressed the forest health problem in the Inland West. Synthesis chapters integrate the diverse knowledge and experience which participants brought to the workshop. They identify and link together many of the ecological, social, and administrative conditions which have created the forest health problem in the West. The book is unique in that it reflects a process that fostered the use of academic research, field realities, and industrial knowledge to define an interdisciplinary problem, establish rational policy objectives, and set-up “do-able” management approaches. The following topics are analyzed: Assessing forest ecosystem health in the Inland West Historical and anticipated changes in forest ecosystems in the Inland West Defining and measuring forest health Historical range of variability as a tool for evaluating ecosystem change Administrative barriers to implementing forest health problems Economic and social dimensions of the forest health problem Fire management Ecosystem and landscape management

Book Bibliography of Agriculture

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1990 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book General Technical Report PNW GTR

Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1995 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalogue  United States Public Documents

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1992 with total page 1384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Imperfect Balance

    Book Details:
  • Author : David L. Lentz
  • Publisher : Columbia University Press
  • Release : 2000-09-26
  • ISBN : 0231505515
  • Pages : 1066 pages

Download or read book Imperfect Balance written by David L. Lentz and published by Columbia University Press. This book was released on 2000-09-26 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: We often envision the New World before the arrival of the Europeans as a land of pristine natural beauty and undisturbed environments. However, David Lentz offers an alternative view by detailing the impact of native cultures on these ecosystems prior to their contact with Europeans. Drawing on a wide range of experts from the fields of paleoclimatology, historical ecology, paleontology, botany, geology, conservation science, and resource management, this book unlocks the secret of how the Western Hemisphere's indigenous inhabitants influenced and transformed their natural environment. A rare combination of collaborators uncovers the changes that took place in North America, Mexico, Central America, the Andes, and Amazonia. Each section of the book has been comprehensively arranged so that a botanical description of the natural vegetation of the region is coupled with a set of case studies outlining local human influences. From modifications of vegetation, to changes in soil, wildlife, microclimate, hydrology, and the land surface itself, this collection addresses one of the great issues of our time: the human modification of the earth.

Book New Mexico Journal of Science

Download or read book New Mexico Journal of Science written by and published by . This book was released on 1996 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliography of Agriculture with Subject Index

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1990 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: