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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Transpiration and canopy conductance of mixed species conifer stands in an inland Pacific Northwest forest /

Pangle, Robert Earl. January 1900 (has links)
Thesis (Ph. D., Natural Resources)--University of Idaho, October 2008. / Major professor: Kathleen L. Kavanagh. Includes bibliographical references. Also available online (PDF file) by subscription or by purchasing the individual file.
2

Tree seedling establishment on heterogeneous microsites in Douglas-fir forest canopy gaps /

Gray, Andrew N. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 1995. / Typescript (photocopy). Includes bibliographical references (leaves 235-249). Also available on the World Wide Web.
3

A characterization of unmanaged riparian overstories in the central Oregon Coast Range /

Nierenberg, Tara R. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 1997. / Typescript (photocopy). Includes bibliographical references (leaves 123-134). Also available on the World Wide Web.
4

The fate of canopy water in the Findley Lake basin, WA /

Rombold, John Sumner. January 2003 (has links)
Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 229-248).
5

Influence of competition on longleaf pine seedling recruitment in selection silviculture

Dyson, David Samuel. Loewenstein, Edward F. January 2010 (has links)
Thesis--Auburn University, 2010. / Abstract. Includes bibliographic references (p.92-104).
6

Forest canopy sturcture in western Oregon : characterization, methods for estimation, prediction, and importance to avian species /

Fiala, Anne C. S. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2004. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
7

Mixed-mesophytic forest understory communities and edge effect the role of canopy gaps in edge composition and structure /

Landenberger, Cedric Edwin. January 1999 (has links)
Thesis (Ph. D.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains x, 173 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 163-169).
8

The role of ants in structuring insect communities on the canopies of senegalia drepanolobium near Laikipia, Kenya /

Kuria, Simon Kamande. January 2006 (has links)
Thesis (Ph.D. (Zoology & Entomology)) - Rhodes University, 2007.
9

Forest fire incidence, damage and control measures in Ghana

Owusu-Afriyie, Kennedy January 2008 (has links)
This study was conducted in the Afram Headwaters, Tain Tributaries Block II and Worobong South Forest Reserves. Satellite record of fire incidence for the country over 11 years (1997 to 2007) was modelled via binary logistic regression analysis, and correlations between fire incidence and the correlates of fire used to explain the observed trends. Fire incidence was found to be correlated with multiple variables which probably covary. Rainfall, vegetation type and geology showed the strongest correlations with fire incidence. Recurrent fire has impacted negatively on forest structure, ground cover biomass and species composition in two forest reserves, but more marked in the wetter Worobong South Forest Reserve than the drier Tain II Forest Reserve. Basal area has reduced from 40 m<sup>2</sup>ha<sup>-1</sup> in least-degraded to &lt;1 m<sup>2</sup>ha<sup>-1</sup> in heavily-degraded stand in Worobong South Forest Reserve, along with tree density, whereas canopy openness has increased from 6% in least-degraded to 83% in heavily-degraded forest. In Tain II Forest Reserve, however, the heavily-degraded forest has lost close to 50% of its maximum value in terms of basal area, tree density and canopy cover, all in approximately 20 years. Early-burning, with maximum seedling height growth rates of 130 cm yr<sup>-1</sup> and 40 cm yr<sup>-1</sup> for Worobong South and Tain II Forest Reserves respectively, might help control the fires, and restore forest canopy in about 10 to 20 years if regularly maintained, but must be accompanied by green firebreaks. Complete protection from fire (during convalescence), on the other hand, would take between five and 15 years to restore forest canopy, but at huge resource cost. Implications for sustainable forest management are discussed.
10

The relationship between canopy structure, light dynamics and deciduousness in a seasonal tropical forest in Panama : a multiple scale study using remote sensing and allometry /

Bohlman, Stephanie Ann. January 2004 (has links)
Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (leaves 165-194).

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