搜索结果: 1-15 共查到“理学 carbon cycling”相关记录18条 . 查询时间(0.078 秒)
第34届国际湖沼学大会专题1：碳循环和水库温室气体排放（Carbon cycling and greenhouse gas emissions in reservoirs）
第34届 国际湖沼学大会 专题 碳循环 水库温室 气体排放
2018/1/18
Reservoirs are environmental reactors that receive and process large amounts of carbon from their catchments and from the organic matter flooded during the impoundment process. Part of the ensuing emi...
OU-Led Study Links Deep-Time Dust with Major Impacts on Carbon Cycling
OU-Led Deep-Time Dust Carbon Cycling
2015/12/7
A University of Oklahoma-led study links vast amounts of iron-rich dust deposits from the late Paleozoic period of 300 million years ago with implications for major ecosystem fertilization and a massi...
Optimising the FAMOUS climate model: inclusion of global carbon cycling
Optimising the FAMOUS climate model global carbon cycling
2014/12/17
FAMOUS fills an important role in the hierarchy of climate models, both explicitly resolving atmospheric and oceanic dynamics yet being sufficiently computationally efficient that either very long sim...
Microscopic organism plays a big role in ocean carbon cycling, Scripps scientists discover
Microscopic organism big role ocean carbon cycling Scripps scientists discover
2014/5/13
It’s broadly understood that the world’s oceans play a crucial role in the global-scale cycling and exchange of carbon between Earth’s ecosystems and atmosphere. Now scientists at Scripps Institution ...
Carbon cycling hysteresis in permeable carbonate sands over a diel cycle: Implications for ocean acidification
Carbon cycling hysteresis permeable carbonate sands over a diel cycle ocean acidification
2014/4/2
Dissolved inorganic carbon, dissolved oxygen, H+, and alkalinity fluxes from permeable carbonate sediments at Heron Island (Great Barrier Reef) were measured over one diel cycle using benthic chambers...
Carbon cycling within epilithic biofilm communities across a nutrient gradient of headwater streams
Carbon cycling within epilithic biofilm communities across a nutrient gradient headwater streams
2014/4/17
Primary production (PP), nutrient uptake, and carbon (C) cycling within epilithic biofilm communities were assessed in four headwater streams in the Arkansas Ozarks, U.S.A., representing a hundred-fol...
The cold-water coral community as a hot spot for carbon cycling on continental margins: A food-web analysis from Rockall Bank (northeast Atlantic)
The cold-water coral community carbon cycling continental margins: A food-web analysis Rockall Bank
2014/4/17
We present a quantitative food-web analysis of the cold-water coral community, i.e., the assembly of living corals, dead coral branches and sediment beneath, associated with the reef-buildingLophelia ...
Lakes and reservoirs as regulators of carbon cycling and climate
Lakes and reservoirs regulators carbon cycling and climate
2014/4/17
We explore the role of lakes in carbon cycling and global climate, examine the mechanisms influencing carbon pools and transformations in lakes, and discuss how the metabolism of carbon in the inland ...
Oxygen as a control on sea floor biological communities and their roles in sedimentary carbon cycling
Oxygen sea floor biological communities sedimentary carbon cycling
2014/4/22
13C tracer experiments were conducted at sites spanning the steep oxygen, organic matter, and biological community gradients across the Arabian Sea oxygen minimum zone, in order to quantify the role t...
Pathways of anaerobic carbon cycling across an ombrotrophic-minerotrophic peatland gradient
Pathways of anaerobic carbon cycling an ombrotrophic-minerotrophic peatland gradient
2014/4/22
Peatland soils represent globally significant stores of carbon, and understanding carbon cycling pathways in these ecosystems has important implications for global climate change. We measured aceticla...
Radiocarbon analysis of neutral sugars in high-molecular-weight dissolved organic carbon: Implications for organic carbon cycling
Radiocarbon analysis neutral sugars
2014/5/4
We used compound-specific natural-abundance radiocarbon analyses of neutral sugars to study carbon cycling of high-molecular-weight (HMW) dissolved organic carbon (DOC) at two sites in the North Pacif...
Virus and bacteria dynamics of a coastal sediment: Implication for benthic carbon cycling
Virus and bacteria dynamics coastal sediment Implication for benthic carbon cycling
2014/5/19
We measured microbial heterotrophic activity, bacteria, and virus-like particle (VLP) abundance in homogenized, undiluted, and anoxic enclosures of sediment collected at a coastal station. The bacteri...
Relationship between bacterial community structure, light, and carbon cycling in the eastern subarctic North Pacific
bacterial community structure light carbon cycling eastern subarctic North Pacific
2014/5/19
Biogeochemical controls on the community structure of heterotrophic marine bacteria are not well understood, and these organisms play a critical role in the global carbon cycle. Through terminal restr...
Extreme 13C enrichments in a shallow hypereutrophic lake: Implications for carbon cycling
Extreme 13C enrichment shallow hypereutrophic lake carbon cycling
2014/5/19
An analysis of stable carbon isotope (δ13C) ratios in Lake Apopka, Florida, reveals extreme 13C enrichments of dissolved inorganic carbon (DIC) pools in the water column and sediment pore water of thi...
Phytoplankton growth, microzooplankton grazing, and carbon cycling in marine systems
Phytoplankton growth microzooplankton grazing
2014/5/14
We present an analysis of the global impact of microplanktonic grazers on marine phytoplankton and its implications for remineralization processes in the microbial community. The data were obtained by...