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Showing 1 to 8 of 8 for “"Scrub oak"”.
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Effects of Elevated Atmospheric CO₂ on Scrub-Oak Root Carbon Pools and Soil Microbial Processes
… the soil. This study was conducted in a Florida scrub-oak ecosystem, where CO<sub>2</sub> levels have been elevated to twice ambient since 1996 in open top chambers. There were eight replicates of ambient CO<sub>2</sub> chambers and eight replicates of twice-ambient CO<sub>2 </sub>levels. The …
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Effects of Elevated Atmospheric CO2 on Root Growth, Turnover and Decomposition in a Scrub Oak Ecosystem
… (700 PPM) CO<sub>2</sub> treatments in an oak-palmetto scrub ecosystem at Kennedy Space Center, Florida. Minirhizotron tubes were installed in each elevated and control chamber to allow observation of roots. Each tube was sampled for root length density (mm cm<sup>−2</sup>) every three …
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Effects of 11 Years of CO2 Enrichment on Root Biomass and Spatial Distribution in a Florida Scrub-Oak Ecosystem
<p>A Florida (USA) scrub-oak ecosystem was exposed to elevated atmospheric CO<sub>2</sub> in open-top chambers from 1996-2007. Minirhizotrons and ground-penetrating radar (GPR) were used to measure fine root (< 2 mm diameter) and coarse root (> 5 mm diameter) biomass, respectively. After 11 years …
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Effects of Elevated Atmospheric CO2 on Root Dynamics, Biomass and Architecture in a Scrub-Oak Ecosystem at Kennedy Space Center, Florida
… persistence and architecture in a fire dominated scrub-oak ecosystem. Open-top chambers have been exposed to elevated atmospheric CO<sub>2</sub> for the past eleven years at Kennedy Space Center, Florida. No significant sustained CO<sub>2</sub> treatment effects were observed in fine root length …
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Effects of Moisture on Combustion Characteristics of Live California Chaparral and Utah Foliage
… fuels, four from southern California (manzanita, scrub oak, ceanothus, and chamise) and four from Utah (canyon maple, gambel oak, big sagebrush, and Utah juniper). Individual leaves were observed as they were exposed to hot gases from a flat flame burner. The broadleaf species from both California …
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Coarse Root Biomass and Architecture: Applications of Ground Penetrating Radar
… and quantify coarse roots was tested in a mixed-oak forest in Southeastern Virginia using experimental pits and locally excavated root segments. GPR was found to be highly dependent on low soil moisture levels as it is unable to differentiate root structures if they possess similar moisture …
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Effects of Prescribed Burning on Black-Capped Vireo Habitat, Territory Establishment, and Production
… practice has been the redevelopment of a scrub-oak woodland containing vast numbers of live oak (Quercus virginiana) and white shin oak (Quercus durandii) mottes. Annual surveys conducted on the Area since 1986 show an increasing trend in the number of Black-capped Vireo (Vireo …
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Intraspecific, Interspecific, and Seasonal Variation in Acclimation of Photosynthesis to Rising Atmospheric Carbon Dioxide Concentration
… chamber experiment within a clonal Florida scruboak ecosystem. In these experiments, photosynthesis was measured with an open-gas exchange system and in vivo rates of carboxylation (Vc,max) and electron transport (Jmax) were derived to assess changes in photosynthetic capacity. The …