منابع مشابه
Methane production in Minnesota peatlands.
Rates of methane production in Minnesota peats were studied. Surface (10- to 25-cm) peats produced an average of 228 nmol of CH(4) per g (dry weight) per h at 25 degrees C and ambient pH. Methanogenesis rates generally decreased with depth in ombrotrophic peats, but on occasion were observed to rise within deeper layers of certain fen peats. Methane production was temperature dependent, increas...
متن کاملMethanotrophy potential versus methane supply in peatlands
Methanotrophy potential versus methane supply by pore water diffusion in peatlands E. R. C. Hornibrook, H. L. Bowes, A. Culbert, and A. V. Gallego-Sala Bristol Biogeochemistry Research Centre, Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol, BS8 1RJ, UK Received: 4 March 2008 – Accepted: 29 March 2008 – Published: 18 June 2008 Correspondence to...
متن کاملMethane-cycling microbial communities and methane emission in natural and restored peatlands.
We addressed how restoration of forestry-drained peatlands affects CH(4)-cycling microbes. Despite similar community compositions, the abundance of methanogens and methanotrophs was lower in restored than in natural sites and correlated with CH(4) emission. Poor establishment of methanogens may thus explain low CH(4) emissions on restored peatlands even 10 to 12 years after restoration.
متن کاملpH controls over anaerobic carbon mineralization, the efficiency of methane production, and methanogenic pathways in peatlands across an ombrotrophiceminerotrophic gradient
Methane (CH4) production varies greatly among different types of peatlands along an ombrotrophice minerotrophic hydrogeomorphic gradient. pH is thought to be a dominant control over observed differences in CH4 production across sites, and previous pH manipulation experiments have verified the inhibitory effect of low pH on CH4 production. In this experiment, we asked (i) if the major effect of ...
متن کاملSpatial characteristics of net methylmercury production hot spots in peatlands.
Many wetlands are sources of methylmercury (MeHg) to surface waters, yet little information exists about the distribution of MeHg within wetlands. Total mercury (THg) and MeHg in peat pore waters were studied in four peatlands in spring, summer, and fall 2005. Marked spatial variability in the distribution of MeHg, and %MeHg as a proxy for net MeHg production, was observed, with highest values ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1984
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.47.6.1266-1271.1984