Now showing items 1-4 of 4

    • Differential physiological responses to environmental change promote woody shrub expansion 

      Heskel, Mary; Greaves, Heather; Kornfeld, Ari; Gough, Laura; Atkin, Owen K.; Turnbull, Matthew H.; Shaver, Gaius R.; Griffin, Kevin L. (John Wiley & Sons, 2013-03-13)
      Direct and indirect effects of warming are increasingly modifying the carbon-rich vegetation and soils of the Arctic tundra, with important implications for the terrestrial carbon cycle. Understanding the biological and ...
    • Impacts of ozone on trees and crops 

      Felzer, Benjamin S.; Cronin, Timothy W.; Reilly, John M.; Melillo, Jerry M.; Wang, Xiaodong (2007-07-05)
      In this review article, we explore how surface-level ozone affects trees and crops with special emphasis on consequences for productivity and carbon sequestration. Vegetation exposure to ozone reduces photosynthesis, ...
    • Looking deeper into the soil : biophysical controls and seasonal lags of soil CO2 production and efflux 

      Vargas, Rodrigo; Baldocchi, Dennis D.; Allen, Michael F.; Bahn, Michael; Black, T. Andrew; Collins, Scott L.; Yuste, Jorge Curiel; Hirano, Takashi; Jassal, Rachhpal S.; Pumpanen, Jukka; Tang, Jianwu (Ecological Society of America, 2010-09)
      We seek to understand how biophysical factors such as soil temperature (Ts), soil moisture (θ), and gross primary production (GPP) influence CO2 fluxes across terrestrial ecosystems. Recent advancements in automated ...
    • Steeper declines in forest photosynthesis than respiration explain age-driven decreases in forest growth 

      Tang, Jianwu; Luyssaert, Sebastiaan; Richardson, Andrew D.; Kutsch, Werner; Janssens, Ivan A. (2014-04)
      The traditional view of forest dynamics originated by Kira, Shidei, and Odum suggests a decline in net primary productivity (NPP) in ageing forests due to stabilized gross primary productivity (GPP) and continuously increased ...