One of the principal inputs organic matter to forest soils is turnover tree fine roots, but process decomposition root litter and its conversion into stable soil (SOM) has received limited study. We labeled roots sugar maple (Acer saccharum Marsh.) with 13C traced label for 7 years four contrasting improve understanding this process. After we recovered an average 8.9% label, about two-thirds as...

1875-9637/$ see front matter 2013 Elsevier B.V. All rights reserved. http://dx.doi.org/10.1016/j.aeolia.2013.04.005 ⇑ Corresponding author. E-mail addresses: [email protected] (R.I. Dorn), [email protected] (D.H. Krinsley), [email protected] (K.A. Langworthy), [email protected] (J. Ditto), [email protected] (T.J. Thompson). Ronald I. Dorn a,⇑, David H. Krinsley , Kurt A. Langworthy , Jef...

‘Efermaele’, that theatre is the ‘art of the present’, and describes directors and performers as creators of ‘ephemeral works’.1 This primary valuation of live performance as live has often been repeated by those, like Barba, who have celebrated the transitory nature of their work. George Balanchine, for example, was, according to Bonnie Brooks, described as ‘a man who didn’t give a damn about ...

BACKGROUND Algae encompass a wide array of photosynthetic organisms that are ubiquitously distributed in aquatic and terrestrial habitats. Algal species often bloom in aquatic ecosystems, providing a significant autochthonous carbon input to the deeper anoxic layers in stratified water bodies. In addition, various algal species have been touted as promising candidates for anaerobic biogas produ...

Headwater streams draining agricultural landscapes receive maize leaves (Zea mays L.) via wind and surface runoff, yet the contribution of maize detritus to organic-matter processing in agricultural streams is largely unknown. We quantified decomposition and microbial respiration rates on conventional (non-Bt) and genetically engineered (Bt) maize in three low-order agricultural streams in nort...

Bacterial decomposition of vascular plant detritus in coastal wetlands results in the conversion of particulate organic matter to dissolved form and causes the release of humic substances into the bulk dissolved organic carbon (DOC) pool. WC found that 34% of the DOC accumulating during degradation of salt marsh grass (Spartina alternif7oru) from coastal wetlands of the southeastern U.S. fits t...