نتایج جستجو برای: forest ecosystems

تعداد نتایج: 144986  

Journal: :Polythematic Online Scientific Journal of Kuban State Agrarian University 2017

2010
Peter Kitin Steven L. Voelker Frederick C. Meinzer Hans Beeckman Steven H. Strauss

Laboratory for Wood Biology and Xylarium, Royal Museum for Central Africa, B–3080 Tervuren, Belgium (P.K., H.B.); Department of Wood Science and Engineering (S.L.V., B.L.) and Department of Forest Ecosystems and Society (S.H.S.), Oregon State University, Corvallis, Oregon 97331; and United States Department of Agriculture Forest Service, Pacific Northwest Research Station, Corvallis, Oregon 973...

2013
William J. Ripple Aaron J. Wirsing Christopher C. Wilmers Mike Letnic

Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, USA b School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA Australian Rivers, Wetlands and Landscapes Centre, School of Biological, Earth and Environmental Sciences, University of...

2001
Miriam Ryan Frank J. Convery

Although much carbon is removed each year from the earth’s atmosphere by forest growth, the CO2 content of the air has been increasing over the past number of centuries. To calculate the rate of carbon storage in forest ecosystems a number of models have been developed. The models developed in Britain generally combine tree production functions with carbon retention curves for various products....

2003
DANIEL B. FAGRE DAVID L. PETERSON AMY E. HESSL

An integrated program of ecosystem modeling and field studies in the mountains of the Pacific Northwest (U.S.A.) has quantified many of the ecological processes affected by climatic variability. Paleoecological and contemporary ecological data in forest ecosystems provided model parameterization and validation at broad spatial and temporal scales for tree growth, tree regeneration and treeline ...

2013
Qing Zhao Ermias T. Azeria Mélanie-Louise Le Blanc Jérôme Lemaître Daniel Fortin

Ecosystem-based forest management strives to develop silvicultural practices that best emulate natural disturbances such as wildfire to conserve biodiversity representative of natural forest ecosystems. Yet, current logging practices alter forest structure and reduce the proportion of old-growth forest and, consequently, can exert long-term effects on the dynamics of forest biota. The stand- an...

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