Soil warming accelerates decomposition of fine woody debris
Berbeco, Minda R.
Melillo, Jerry M.
Orians, Colin M.
MetadataShow full item record
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.
© 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.
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc/4.0/
Showing items related by title, author, creator and subject.
Goldstein, Miriam C.; Goodwin, Deborah S. (PeerJ, 2013-10-22)Substantial quantities of small plastic particles, termed “microplastic,” have been found in many areas of the world ocean, and have accumulated in particularly high densities on the surface of the subtropical gyres. While ...
Lavender Law, Kara L.; Moret-Ferguson, Skye E.; Goodwin, Deborah S.; Zettler, Erik R.; DeForce, Emelia; Kukulka, Tobias; Proskurowski, Giora (American Chemical Society, 2014-04-07)We present an extensive survey of floating plastic debris in the eastern North and South Pacific Oceans from more than 2500 plankton net tows conducted between 2001 and 2012. From these data we defined an accumulation zone ...
Carmichael, Catherine A.; Arey, J. Samuel; Graham, William M.; Linn, Laura J.; Lemkau, Karin L.; Nelson, Robert K.; Reddy, Christopher M. (IOP Publishing, 2012-01-18)The discovery of oiled and non-oiled honeycomb material in the Gulf of Mexico surface waters and along coastal beaches shortly after the explosion of Deepwater Horizon sparked debate about its origin and the oil covering ...