搜索结果: 1-13 共查到“地球科学总论 microbial N”相关记录13条 . 查询时间(0.125 秒)
Response of microbial decomposition to spin-up explains CMIP5 soil carbon range until 2100
microbial decomposition soil carbon
2014/12/19
Soil carbon storage simulated by the Coupled Model Intercomparison Project (CMIP5) models varies 6-fold for the present day. Here, we confirm earlier work showing that this range already exists at the...
Comparing microbial and chemical kinetics for modelling soil organic carbon decomposition using the DecoChem v1.0 and DecoBio v1.0 models
Comparing microbial chemical kinetics modelling soil organic carbon decomposition DecoChem v1.0 DecoBio v1.0 models
2014/12/19
Soil organic matter is a vast store of carbon, with a critical role in the global carbon cycle. Despite its importance, the dynamics of soil organic carbon decomposition, under the impact of climate c...
Effect of peat quality on microbial greenhouse gas formation in an acidic fen
peat quality microbial greenhouse gas formation an acidic fen
2010/1/21
Peatlands play an important role in the global carbon cycle and represent both an important stock of soil carbon and a substantial natural source of relevant greenhouse gases like CO2 and CH4. While i...
Evidence of microbial activity in siderite and calcite deposits on gastropod shells in Pliocene sand and clay beds from Lipovljani,Croatia
concretions fresh water diagenesis iron bacteria calcite siderite Pliocene Slavonia Croatia
2009/12/8
Freshwater Pliocene sand and clays found near Lipovljani in western Slavonia, Croatia, contain gastropods preserved by diagenetic mineral incrustations of alternating calcite and siderite. The geochem...
Lithocodium and Bacinella signature of a late Hauterivian,local microbial event:the Urgonian limestone in South-East France
Lithocodium Bacinella Urgonian automicrite dolomite Hauterivian Jura Pre-Subalpine Domain
2009/12/7
Sediment binding crusts of Lithocodium aggregatum and associated Bacinella irregularis abound in a shallow water limestone layer, in South-East France. The sudden appearance of these crusts denotes a ...
Abiogenic,microbial and hybrid authigenic crusts:components of Precambrian stromatolites
Archaean carbonate microbial Proterozoic stromatolite thrombolite
2009/12/7
Authigenic seafloor carbonate crusts include fenestrate microbialite, thrombolite, and four types here designated Fine-grained Crust, Sparry Crust, Hybrid Sparry Fine-grained Crust, and Sparry Crust p...
Temporal variations in microbial activities and carbon turnover in subtidal sandy sediments
Temporal variations microbial activities carbon turnover subtidal sandy sediments
2010/1/20
Temporal dynamics and vertical patterns in bacterial abundances and activities were studied in a shallow subtidal sand flat in the Sylt-Rømø Basin (North Frisian Wadden Sea, Germany). Ex...
Wetland restoration and methanogenesis:the activity of microbial populations and competition for substrates at different temperatures
Wetland restoration methanogenesis microbial populations substrates
2010/1/20
Ljubljana marsh in Slovenia is a 16 000 ha area of partly drained fen, intended to be flooded to restore its ecological functions. The resultant water-logging may create anoxic conditions, eventually ...
Constraints on mechanisms and rates of anaerobic oxidation of methane by microbial consortia:process-based modeling of ANME-2 archaea and sulfate reducing bacteria interactions
mechanisms anaerobic oxidation methane microbial consortia ANME-2 archaea
2010/1/18
Anaerobic oxidation of methane (AOM) is the main process responsible for the removal of methane generated in Earth's marine subsurface environments. However, the biochemical mechanism of AOM remains e...
Biogeochemical processes and microbial diversity of the Gullfaks and Tommeliten methane seeps (Northern North Sea)
Biogeochemical processes microbial diversity Gullfaks Tommeliten methane seeps
2010/1/18
Fluid flow related seafloor structures and gas seeps were detected in the North Sea in the 1970s and 1980s by acoustic sub-bottom profiling and oil rig surveys. A variety of features like pockmarks, g...
N2O,NO and CH4 exchange,and microbial N turnover over a Mediterranean pine forest soil
N2O NO CH4 microbial N Mediterranean pine forest soil
2010/1/13
Trace gas exchange of N2O, NO/NO2 and CH4 between soil and the atmosphere was measured in a typical Mediterranean pine (Pinus pinaster) forest during two intensive field campaigns in spring and autumn...
Analyzing the trophic link between the mesopelagic microbial loop and zooplankton from observed depth profiles of bacteria and protozoa
trophic link mesopelagic microbial loop zooplankton observed depth profiles bacteria protozoa
2010/1/12
It is widely recognized that organic carbon exported to the ocean aphotic layer is significantly consumed by heterotrophic organisms such as bacteria and zooplankton in the mesopelagic layer. However,...
Large-scale environmental controls on microbial biofilms in high-alpine streams
Large-scale environmental controls microbial biofilms high-alpine streams
2010/1/7
Glaciers are highly responsive to global warming and important agents of landscape heterogeneity. While it is well established that glacial ablation and snowmelt regulate stream discharge, linkage amo...