Affichage des résultats pour "hal salwasser"
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Du contenu pour adultes est visible.
2013
EN
Before the transition in forestry can be made from conventional approaches of the past century to the ecosystem approach of the next, a consensus must be reached on the meaning of "sustainable forestry." Defining Sustainable Forestry presents the results of a national conference convened by The Wilderness Society, American Forests, and the World Resources Institute to help establish a common framework upon which to guide the future development of forestry.
$43.39 CAD
2013
EN
This volume presents the results of a five-year study of wildlife-management policies in national parks. It synthesizes interviews with individuals inside and outside the National Park Service, provides a comprehensive review of published and unpublished literature, and draws on the collective experience of the authors with various units of the system over the past three decades. Among the topics examined are:the structure and history of the National Park System and Service
$34.79 CAD
2013
EN
In Landscape Linkages and Biodiversity experts explain biological diversity conservation, focusing on the need for protecting large areas of the most diverse ecosystems, and connecting those ecosystems with land corridors to allow species to move among them more easily.
$45.69 CAD


