نتایج جستجو برای: bog

تعداد نتایج: 1419  

2008
Nicholas Kettridge Xavier Comas Andrew Baird Lee Slater Maria Strack Dan Thompson Harry Jol Andrew Binley

[1] The surface pattern of vegetation influences the composition and humification of peat laid down during the development of a bog, producing a subsurface hydrological structure that is expected to affect both the rate and pattern of water flow. Subsurface peat structures are routinely derived from the inspection of peat cores. However, logistical limits on the number of cores that can be coll...

2010
Aurel I. Lozan Sergey Belokobylskij Cees van Van Achterberg Michael T. Monaghan

An ecological overview of seven years investigation of Braconidae, a family of parasitoid wasps (Hymenoptera: Ichneumonoidea) and a tyrpho-classification of parasitoids in peatbog areas of South Bohemia, Czech Republic are given. A total of 350 species were recorded in investigated sites, but only five tyrphobionts (1.4%) are proposed: Microchelonus basalis, Microchelonus koponeni, Coloneura at...

2014
T. M. Munir B. Xu M. Perkins

Northern peatland ecosystems represent large carbon (C) stocks that are susceptible to changes such as accelerated mineralization due to water table lowering expected under a climate change scenario. During the growing seasons (1 May to 31 October) of 2011 and 2012 we monitored CO2 fluxes and plant biomass along a microtopographic gradient (hummocks-hollows) in an undisturbed dry continental bo...

2016
M. H. Garnett P. Gulliver M. F. Billett

Peatland streams typically contain high methane concentrations and act as conduits for the release of this greenhouse gas to the atmosphere. Radiocarbon analysis provides a unique tracer that can be used to identify the methane source, and quantify the time elapsed between carbon fixation and return to the atmosphere as CH4. Few studies – those that have focus largely on sites with bubble (ebul...

Journal: :FEMS microbiology ecology 2013
Carolyn-Monika Görres Ralf Conrad Søren O Petersen

Grasslands established on drained peat soils are regarded as negligible methane (CH4 ) sources; however, they can still exhibit considerable soil CH4 dynamics. We investigated archaeal community composition in two different fen peat soils and one bog peat soil under permanent grassland in Denmark. We used terminal restriction fragment length polymorphism (T-RFLP) fingerprinting and clone librar...

2015
J. Nichols R. K. Booth Stephen T. Jackson Elise Pendall Y. S. Huang Jonathan Nichols Robert K. Booth Elise G. Pendall Yongsong Huang

We have developed a new approach to quantitatively reconstruct past changes in evaporation based on compound-specific hydrogen isotope ratios of vascular plant and Sphagnum biomarkers in ombrotrophic peatland sediments. We show that the contrast in H isotopic ratios of water available to living Sphagnum (top 20 cm) and in the rooting zone of peatland vascular plants can be used to estimate “f ”...

Journal: :Korean journal of transplantation 2022

Yun Woo Lee, Hyemin Chung, Sung-Han Kim, Heungsup Sung, Su-Min Ha, Eun-Kyoung Jwa, Dong-Hwan Jung, Deok-Bog Moon, Sung-Gyu Sang-Oh Lee. Korean J Transplant 2022;36:38. https://doi.org/10.4285/ATW2022.F-1413

Journal: :Magasin fra Det Kongelige Bibliotek 2006

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید