Results 51 to 60 of about 1,491 (157)

Impacts of Three Timber Stand Improvement Thinning Options on Low Quality Southern Mixed-Hardwood Stands [PDF]

open access: yes, 1998
The impact of three thinning options (strip, single-tree selection, and strip with selection between strips) on lowquality southern mixed-hardwood stands was evaluated in northern Alabama.
Green, Thomas H., Oswald, Brian P.
core   +1 more source

Five Years of Change in an Old-Growth Pine-Hardwood Remnant in Ashley County, Arkansas [PDF]

open access: yes, 2006
The Levi Wilcoxon Demonstration Forest near Hamburg, Arkansas is an industrially-owned remnant of old-growth pine and hardwoods. Some of the loblolly (Pinus taeda L.)and shortleaf (Pinus echinata Mill.)pine in this stand are over 200 years old, and ...
Bragg, Don C.
core  

Biological and Taxonomic Notes on Erythroneura (Homoptera, Cicadellidae) [PDF]

open access: yes, 1953
Author Institution: Illinois Natural History Survey, Urbana, and Department of Zoology and Entomology, The Ohio State University, Columbus ...
DeLong, Dwight M., Ross, Herbert H.
core  

Denitrification and nitrous oxide emissions from riparian forests soils exposed to prolonged nitrogen runoff [PDF]

open access: yes, 2006
Compared to upland forests, riparian forest soils have greater potential to remove nitrate (NO3) from agricultural run-off through denitrification. It is unclear, however, whether prolonged exposure of riparian soils to nitrogen (N) loading will affect ...
A Smolander   +53 more
core   +2 more sources

Hellenistik ve roma dönemi lykia lahitleri üzerine tipolojik bir önerme [PDF]

open access: yes, 2014
The typological studies of Lycian tombs began in the eighteenth century. Although these pioneer typologies were not satisfactory, studies continued in subsequent years.
Özer, Elif
core   +1 more source

Pineywoods Native Plant Center, Sept 2004 [PDF]

open access: yes, 2004
https://scholarworks.sfasu.edu/sfa_gardens_newsletters/1067/thumbnail ...
SFA Gardens, Stephen F. Austin State University
core   +1 more source

Initial Investigation of Height-Diameter Relationships of Dominant Trees in the mixed Hardwood Bottomland Forests of East Texas [PDF]

open access: yes, 1998
Three to five dominant trees from each of 445 ten-factor variable radius inventory points were utilized to evaluate the height- diameter relationships of 13 species or genera found on bottomland hardwood sites throughout east Texas.
Dale, Leslie A.   +3 more
core   +1 more source

Notable Environmental Features in Some Historical Aerial Photographs from Ashley County, Arkansas [PDF]

open access: yes, 2007
A collection of 1939 aerial photographs from Ashley County, Arkansas was analyzed for its environmental information. Taken by the US Department of Defense (USDOD), these images show a number of features now either obscured or completely eliminated over ...
Bragg, Don C., Weir, Robert C., Jr.
core   +1 more source

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