264 research outputs found
MO‐FG‐BRD‐02: Real‐Time Imaging and Tracking Techniques for Intrafractional Motion Management: MV Tracking
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Soil warming accelerates decomposition of fine woody debris
No full text© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Plant and Soil 356 (2012): 405-417, doi:10.1007/s11104-012-1130-x.Soil warming from global climate change could increase decomposition of fine woody debris (FWD), but debris size and quality may mitigate this effect. The goal of this study was to investigate the effect of soil warming on decomposition of fine woody debris of differing size and quality. We placed FWD of two size classes (2 × 20 cm and 4 × 40 cm) and four species (Acer saccharum, Betula lenta, Quercus rubra and Tsuga canadensis) in a soil warming and ambient area at Harvard Forest in central Massachusetts. We collected the debris from each area over two years and measured mass loss and lignin concentration. Warming increased mass loss for all species and size classes (by as much as 30%), but larger debris and debris with higher initial lignin content decomposed slower than smaller debris and debris with lower initial lignin content. Lignin degradation did not follow the same trends as mass loss. Lignin loss from the most lignin-rich species, T. canadensis, was the highest despite the fact that it lost mass the slowest. Our results suggest that soil warming will increase decomposition of FWD in temperate forests. It is imperative that future models and policy efforts account for this potential shift in the carbon storage pool
Fostering Educator Resilience: Engaging the Educational Community to Address the Natural Hazards of Climate Change
No full textSU-E-J-155: Learning Based Tumor Motion Tracking in MV Images Using Cone-Beam CT Projections
No full textSU‐E‐J‐112: The Impact of Cine EPID Image Acquisition Frame Rate On Markerless Soft‐Tissue Tracking
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SU‐E‐T‐408: Enhancing Stereotactic Radiosurgery for Neovascular Age‐Related Macular Degeneration, Using Gold Nanoparticles
No full textWE-A-BRB-02: Gold Nanoparticle-Aided Brachytherapy with Vascular Dose Painting: Estimation of Dose Enhancement to the Endothelial Cell Nucleus
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