Global ETD Search

91	Patterns of mineral element retranslocation in four species of tropical montane forest trees in Monteverde, Costa Rica Hollis, Steven Scott. January 2008 (has links) (PDF) Thesis (M.E.S.)--The Evergreen State College, 2008. / Title from title screen (viewed 2/25/2010). Includes bibliographical references (p. 21-23).
92	The effects of forest fires or of controlled burning on the forest soils of northern Arizona Shannon, Stanton, 1928- January 1953 (has links) No description available. Forest fires -- Arizona. Burning of land -- Arizona. Forest soils -- Arizona.
93	Relationships between microbial physiological status and nitrogen availability in forest soils Au, William R. January 1998 (has links) Although the physiological nitrogen demand of the soil microbial biomass is a major determinant of N mineralization in forest soils, the exact nature of the relationship is unclear. This study investigated the relationships between a respiration-based indicator of microbial physiological N demand (NIR) and N availability in forest soils. NIR was found to correlate significantly with net mineralized N in the field and annual foliar litterfall N fluxes. In a laboratory incubation, NIR was shown to be sensitive to changes in soil available C and N pools. These results demonstrated that microbial physiological N demand is determined by relative availabilities of labile C and N, and that it is significantly related to N cycling in forest soils. Results from a seasonal study of a forested watershed suggest that nutrient availability determined tree production and soil C availability, which in turn determined microbial physiological N demand and nitrogen dynamics in the forest. Soil microbiology. Forest soils -- Fertilization. Nitrogen cycle. Soils -- Nitrogen content.
94	Reversal of soil and water acidification in SW Sweden : simulating the recovery process / Moldan, Filip, January 1900 (has links) (PDF) Diss. (sammanfattning) Umeå : Sveriges lantbruksuniv. / Härtill 6 uppsatser.
95	Decomposition and nitrogen dynamics of red alder and Douglas-fir leaf litter in Oregon Coast Range riparian forests / Matkins, Joselin. January 1900 (has links) Thesis (M.S.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 99-104). Also available on the World Wide Web.
96	A stochastic spatial model for the consumption of organic forest soils in a smoldering ground fire / Holt, Benjamin Victor. January 1900 (has links) Thesis (M.S.)--Humboldt State University, 2007. / Includes bibliographical references (leaves 72-74). Also available via Humboldt Digital Scholar.
97	Understory vegetation effects on soil nitrogen and soil carbon in thinned and unthinned Douglas-fir forests / Geyer, Eric A. January 1998 (has links) Thesis (M.S.)--Oregon State University, 1999. / Typescript (photocopy). Includes bibliographical references (leaves 67-74). Also available on the World Wide Web.
98	Sources of variation in ecosystem carbon pools : a comparison of adjacent old- and second-growth forests / Gathany, Mark A. January 2004 (has links) Thesis (M.S.)--Ohio University, August, 2004. / Includes bibliographical references (p. 35-40).
99	Vegetation and soil microbial communities three years after wildfire in spruce-fir forests of northwestern Wyoming / Hooke, Jennifer Suzanne. January 1900 (has links) Thesis (M.S.)--Oregon State University, 2005. / Printout. Includes bibliographical references. Also available on the World Wide Web.
100	Sources of variation in ecosystem carbon pools a comparison of adjacent old- and second-growth forests / Gathany, Mark A. January 2004 (has links) Thesis (M.S.)--Ohio University, August, 2004. / Title from PDF t.p. Includes bibliographical references (p. 35-40)

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