composition structure host:www.na.fs.fed.us

Listing 1 - 10 from 11 for composition structure

Abies concolor (Gord
... older stands of less tolerant trees is common and threatens a major change in species composition. In many places, especially with giant sequoia, such changes are undesirable, and control measures, ... mistletoe stem cankers, increase mortality of old-growth trees through stem breakage. Changes in wood structure in the large stem bulges caused by dwarf mistletoe infections reduce the strength of ...
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Abies lasiocarpa (Hook
... Coastal True Fir-Hemlock Differences in elevation and latitude affect temperature and precipitation, influencing the composition of the forests where subalpine fir grows (16). In Alaska and the Coast Range ... storied stands appear to have originated as uneven-aged stands and are successfully perpetuating that structure (3,27). Where subalpine fir is a component of the climax vegetation, the natural ...
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PinusieffreyiGrev
... of ponderosa pine (28,45). These western yellow pines produce wood of identical structure and quality and are closely related taxonomically (10). Jeffrey pine is distinct chemically, ecologically ... conifer seeds. Journal of Agricultural Research 47:119-128. Smith, Richard H. 1967. Monoterpene composition of pine species and hybrids ... some preliminary findings. USDA Forest Service, Research Note ...
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Pinus resinosa Ait
... of red pine. Ecology 49:34-40. Methven, I. R. 1973. Fire, succession and community structure in a red and white pine stand. Department of Environment Canadian Forestry Service, Information Report ... 6:275-282. Stephenson, S. L., H. S. Adams, and M. L. Lipford. 1986. Ecological composition of indigenous stands of red pine (Pinus resinosa) in West Virginia. Castanea, Journal of the ...
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Pinus sylvestris L
... many characteristics including seed size, germination, dormancy, and color; cone color; tree form; growth; structure of root system; flowering characteristics; needle color and length; susceptibility to cold, heat, ... particular caution, however, as they may be applied to trees of very different genetic composition. Hybrids Hybrids between recognized varieties can be made but are not common. In the ...
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Taxodium distichum (L
... 's Publishing Division, Baton Rouge, LA. 139 p. Brown, Sandra. 1981. A comparison of the structure, primary productivity, and transpiration of cypress ecosystems in Florida. Ecological Monographs 51(4):403-427 ... , Baton Rouge. 148 p. Conner, William H., and John W. Day, Jr. 1976. Productivity and composition of a baldcypress-water tupelo site and a bottomland hardwood site in a Louisiana swamp ...
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Tsuga canadensis (L
... , R. G., and 0. L. Loucks. 1979. White-tail deer (Odocoileus virginianus) influence on structure and composition of Tsuga canadensis forests. Journal of Applied Ecology 16:855-861. Baker, Frederick S. 1949 ... . John Wiley, New York. 567 p. Willis, G. L., and M. S. Coffman. [n.d.] Composition, structure, and dynamics of climax stands of eastern hemlock and sugar maple in the Huron Mountains ...
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Glossary
... pond pine. Sporangium- A hollow, unicellular or multicellular saclike, spore-producing structure. Sporophyll- A modified leaf or leaflike structure which bears sporangia, e.g., the stamens and carpels of ... (timber stand improvement)- A loose term comprising all intermediate treatments made to improve the composition, constitution, condition, and increment of a timber stand. Tuff- A rock composed of ...
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... B., Arthur McKee, Glenn M. Hawk, and C. T. Dyrness. 1976. Relationships of environment to composition, structure, and diversity of forest communities of the central western Cascades of Oregon. Ecological Monographs 46 ...
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Castanopsis chrysophylia (Dougl-) A
... . B., A. McKee, G. M. Hawk, and C. T. Dyrness. 1976. Relationships of environment to composition, structure and diversity of forest communities of the central western Cascades of Oregon. Ecological Monographs 46 ...
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