World Library  


 
  • Cover Image

Bioavailability of Riverine Dissolved Organic Matter in Three Balt...

By: L. Pitkänen; R. Autio; H. Kaartokallio; D. N. Thomas; C. A. Stedmon; E. Asmala

Description: Marine Research Centre, Finnish Environment Institute (SYKE), Helsinki, Finland. The microbial degradation of dissolved organic carbon and nitrogen (DOC, DON) was studied in three boreal estuaries with contrasting land use patterns (Kiiminkijoki – natural forest and peatland; Kyrönjoki – agricultural; Karjaanjoki – mixed/urban). Bioassays conducted for 12–18 days were used in 3 seasons at in situ temperatures. Besides the bulk parameters, a suite...

Abdulla, H. A. N., Minor, E. C., and Hatcher, P. G.: Using two dimensional correlations of 13C-NMR and FTIR to investigate changes in the chemical composition of dissolved organic matter along an estuarine transect, Environ. Sci. Technol., 44, 8044–8049, 2010.; Amon, R. M. W. and Benner, R.: Bacterial utilization of different size classes of dissolved organic matter, Limnol. Oceanogr., 41, 41–51, 1996.; Asmala, E., Stedmon, C. A., and Thomas, D. N.: Linking CD...

Read More
  • Cover Image

Nitrogen Cycling in the Southern Ocean Kerguelen Plateau Area: Evi...

By: T. W. Trull; F. Fripiat; C. Fernandez; A. Roukaerts; D. Davies; M. Elskens; F. Planchon; F. Dehairs; A.-j. Cavagna; D. Fonseca Batista

Description: Analytical, Environmental and Geo – Chemistry; Earth System Sciences Research Group, Vrije Universiteit Brussel, Belgium. This paper presents whole water column data for nitrate N, O isotopic composition for the Kerguelen Plateau area and the basin extending east of Heard Island, aiming at understanding the N-cycling in this naturally iron fertilized area that is characterized by large re-current phytoplankton blooms. The KEOPS 2 expedition (October–Nove...

Archambeau, A.-S., Pierre, C., Poisson, A., and Schauer, B.: Distributions of oxygen and carbon stable isotopes and CFC-12 in the water masses of the Southern Ocean at 30° E from South Africa to Antarctica: results of the CIVA1 cruise, J. Mar. Syst., 17, 25–38, 1998.; Bianchi, M., Feliatra, F., Tréguer, P., Vincendeau, M.-A., and Morvan, J.: Nitrification rates, ammonium and nitrate distribution in upper layers of the water column and in sediments of the Indian sector of...

Read More
  • Cover Image

Corrigendum to Changes in Soil Carbon Stocks in Brazil Due to Land...

By: E. D. Assad; R. Luna; E. Pavão; E. Vasconcellos; J. D. Groppo; H. S. Pinto; E. E. Sano; B. Evangelista; S. C. Martins; P. B. Camargo; P. R. Salgado; L. A. Martinelli

Description: Brazilian Agricultural Research Corporation, EMBRAPA Agricultural Informatics, Campinas, São Paulo State, Brazil. No abstract available.

Read More
  • Cover Image

Stoichiometries of Remineralisation and Denitrification in Global ...

By: A. Oschlies; I. Kriest; A. Paulmier

Description: Leibniz-Institute of Marine Sciences IFM-GEOMAR, Düsternbrooker Weg 20, 24105 Kiel, Germany. Since the seminal paper of Redfield (1934), constant stoichiometric elemental ratios linking biotic carbon and nutrient fluxes are often assumed in marine biogeochemistry, and especially in coupled biogeochemical circulation models, to couple the global oxygen, carbon and nutrient cycles. However, when looking in more detail, some deviations from the classical ...

Altabet, M. A., Francois, R., Murray, D. W., and Prell, W. L.: Climate-related variations in denitrification in the Arabian Sea from sediment 15N/14N ratios, Nature, 373, 506–509, 1995.; Anderson, L.: On the hydrogen and oxygen content of marine phytoplankton, D}eep-{S}ea {R}es. {I, 42, 1675–1680, 1995.; Anderson, L. and Sarmiento, J.: Redfield ratios of remineralization determined by nutrient data analysis, {G}lobal {B}iogeochem. {C}y., 8, 65–80, 1...

Read More
  • Cover Image

Hamburgisches Magazin, Oder, Gesammlete Schriften, Aus Der Naturfo...

Description: K. K. Mackenzie collection

Read More
  • Cover Image

Radiative Forcing Bias of Simulated Surface Albedo Modifications L...

By: A. H. Strømman; R. Astrup; G. Myhre; C. Antón-fernández; R. M. Bright

Description: Industrial Ecology Program, Energy and Process Engineering, Norwegian University of Science and Technology, Høgskoleringen 5, E-1, 7491 Trondheim, Norway. In the presence of snow, the bias in the prediction of surface albedo by many climate models remains difficult to correct due to the difficulties of separating the albedo parameterizations from those describing snow and vegetation cover and structure. This can be overcome by extracting the albedo param...

Aubin, I., Beaudet, M., and Messier, C.: Light extinction coefficients specific to the understory vegetation of the southern boreal forest, Quebec, Can. J. Forest Res., 30, 168–177, 2000.; Balster, N. J. and Marshall, J. D.: Eight-year responses of light interception, effective leaf area index, and stemwood production in fertilized stands of interior Douglas-fir (Pseudotsuga menziesii var. glauca), Can. J. Forest Res., 30, 733–743, 2000.; Best, M.: JULES Technical Docume...

Read More
  • Cover Image

Atmospheric Forcing of Salinity in the Overflow of Denmark Strait ...

By: T. Albrecht; J. Holfort

Description: Institut für Meereskunde der Universität Hamburg, Hamburg, Germany. The temporal evolution of the characteristics of Denmark Strait Overflow Water (DSOW) is reconstructed using hydrographic data and compared with possible atmospheric forcing mechanisms. It is concluded that the main factor influencing the DSOW characteristics at a time scale of one to several years is the difference in mean sea level pressure across Denmark Strait or, in other words, th...

Conkright, M E., Levitus, S., Boyer, T P., O'Brien, T., Stephens, C., Johnson, D., Stathoplos, L., Baranova, O., Antonov, J., Gelfeld, R., Burney, J., Rochester, J., and Forgy, C.: WORLD OCEAN DATABASE 1998, 1998.; Dickson, R R., Lazier, J., Meincke, J., Rhines, P., and Swift, J.: Long-term coordinated changes in the convective activity of the North Atlantic, Prog. Oceanogr., 38, 241–295, 1996.; Dickson, R R., Medler, K., and Read, J.: Current meter data report for Workp...

Read More
  • Cover Image

1961–1990 Monthly High-resolution Solar Radiation Climatologies fo...

By: M. Brunetti; C. Simolo; M. Maugeri; J. Spinoni

Description: Department of Physics, University of Milan, Milan, Italy. We present a methodology for estimating solar radiation climatologies from a sparse network of global radiation and/or sunshine duration records: it allows to obtain high-resolution grids of monthly normal values for global radiation (and for the direct and diffuse components), atmospheric turbidity, and surface absorbed radiation. We discuss the application of the methodology to a preliminary ve...

Akinoglu, B. G. and Ecevit, A.: Construction of a quadratic model using modified Angstrom coefficients to estimate global solar radiation, Sol. Energy, 45, 85–92, 1990.; Andretta, A., Bartoli, B., Coluzzi, B., Cuomo, V., Francesca, M., and, Serio, C.: Global solar radiation estimation from relative sunshine hours in Italy, J. Appl. Meteorol., 21, 1377–1384, 1982.; Black, J. N., Bonython, C. W., and Prescott, J. A.: Solar radiation and the duration of sunshine, Q. J. Roy....

Read More
  • Cover Image

Is Average Chain Length of Plant Lipids a Potential Proxy for Vege...

By: W. Zhang; J. Hou; M. Wang

Description: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China. Average chain length (ACL) of leaf wax components preserved in lacustrine sediments and soil profiles has been widely adopted as a proxy indicator for past changes in vegetation, environment and climate during the late Quaternary. The fundamental assumption is that woody plants produce le...

Aichner, B., Herzschuh, U., and Wilkes, H.: Influence of aquatic macrophytes on the stable carbon isotopic signatures of sedimentary organic matter in lakes on the Tibetan Plateau, Org. Geochem., 41, 706–718, doi:10.1016/j.orggeochem.2010.02.002, 2010.; Ali, H. A. M., Mayes, R. W., Hector, B. L., and Orskov, E. R.: Assessment of n-alkanes, long-chain fatty alcohols and long-chain fatty acids as diet compositi...

Read More
  • Cover Image

Anzeiger Der Kaiserlichen Akademie Der Wissenschaften, Mathematisc...

By: Kaiserl. Akademie Der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse

Description: Elecresource

Read More
  • Cover Image

Primary Production During Nutrient-induced Blooms at Elevated Co2 ...

By: R. G. J. Bellerby; A. Larsen; T. F. Thingstad; U. Riebesell; J. K. Egge; J. Wohlers; A. Engel

Description: Department of Biology, University of Bergen, 5020 Bergen, Norway. A CO2 enrichment experiment (PeECE III) was carried out in 9 mesocosms in which the seawater carbonate system was manipulated to achieve three different levels of pCO2. At the onset of the experimental period, nutrients were added to all mesocosms in order to initiate phytoplankton blooms. Primary production rates were measured by in-vitro incubations based on...

Brett, M. T. and Goldman, C. R.: A meta-analysis of the freshwater trophic cascade, Proc. Natl. Acad. Sci, USA, 93, 7723–7726, 1996.; Allgaier, M., Riebesell, U., Vogt, M., Thyrhaug, R., and Grossart, H.-P.: Coupling of heterotrophic bacteria to phytoplankton bloom development at different $p$CO2 levels: a mesocosm study, Biogeosciences, 5, 1007–1022, 2008.; Bellerby, R. G. J., Schulz. K. G., Riebesell, U., Neil, C., Nondal, G., Johannessen, T., and Brown, K. ...

Read More
  • Cover Image

Estimation of Nighttime Ecosystem Respiration Over a Paddy Field i...

By: T. Hiyama; H. Tanaka; M. S. Hossen

Description: Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan. Accurate estimation of terrestrial ecosystem respiration is crucial for developing regional- to global-scale carbon budget databases. This study evaluated nighttime ecosystem respiration under low turbulence conditions at a paddy field in China during the 2004 growing season. Data from turbulent flux with storage change and alternatively from CO2 concentration...

Acevedo, O. C., Moraes, O. L. L., Da Silva, R., Fitzarrald, D. R., Sakai, R. K., Staebler, R. M., and Czikowsky, M. J.: Inferring nocturnal surface fluxes from vertical profiles of scalars in an Amazon pasture, Global Change Biol., 10, 886–894, 2004.; Angell, R. F., Svejcar, T., Bates, J., Saliendra, N. Z., and Johnson, D. A.: Bowen ratio and closed chamber carbon dioxide flux measurements over sagebrush steppe vegetation, Agric. For. Meteorol., 108, 153–161, 2001.; Arno...

Read More
  • Cover Image

Modeling Impacts of Management Alternatives on Soil Carbon Storage...

By: C. Li; H. Wu; Z. Wang; F. Zhang

Description: State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an, 710075, PR China. Long-term losses of soil organic carbon (SOC) have been observed in many agriculture lands in Northwest China, one of the regions with the longest cultivation history in the world. The decline of SOC contents not only impaired the soil fertility but also increased the amount of carbon dioxide (CO2) emitted from terrestrial ecosys...

Brown, L., Syed, B., Jarvis, S. C., Sneath, R. W., Phillips, V. R., Groulding, K. W. T., and Li, C.: Development and application of a mechanistic model to estimate emission of nitrous oxide from UK agriculture, Atmos. Environ., 36, 917–928, 2002.; Butterbach-Bahl, K., Stange, F., Papen, H., and Li, C.: Regional inventory of nitric oxide and nitrous oxide emissions for forest soils of southeast Germany using the biogeochemical model PnET-N-DNDC, J. Geophys. Res., 106(D24)...

Read More
  • Cover Image

Top-down, Bottom-up and Physical Controls on Diatom-diazotroph Ass...

By: M. T. Brooks; V. J. Coles; R. R. Hood; M. R. Stukel

Description: University of Maryland Center for Environmental Science, Horn Point Laboratory, Cambridge, Maryland 21613, USA. The nutrient-rich waters of the Amazon River plume (ARP) support dense blooms of diatom-diazotroph assemblages (DDAs) that introduce large quantities of new nitrogen to the planktonic ecosystem and, unlike other nitrogen-fixers, are likely to directly fuel vertical carbon flux. To investigate the factors controlling DDA blooms, we develop a fiv...

Ammerman, J. W., Hood, R. R., Case, D. A., and Cotner, J. B.: Phosphorus deficiency in the Atlantic: An emerging paradigm in oceanography, EOS, Transactions, Am. Geophys. Union, 84, 165–170, 2003.; Aumont, O., Maier-Reimer, E., Blain, S., and Monfray, P.: An ecosystem model of the global ocean including Fe, Si, P colimitations, Global Biogeochem. Cy., 17, 1060, doi:10.1029/2001gb001745, 2003.; Calbet, A.: Mesozooplankton...

Read More
  • Cover Image

Anzeiger Der Kaiserlichen Akademie Der Wissenschaften, Mathematisc...

By: Kaiserl. Akademie Der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse

Description: Elecresource

Read More
  • Cover Image

Direct Observation of 134Cs and 137Cs in Surface Seawater in the W...

By: Y. Shimizu; S. Yonezaki; K. Fujimoto; D. Ambe; S. Nakatsuka; T. Ono; T. Watanabe; H. Minami; Y. Kato; H. Kaeriyama; H. Matsunaga

Description: Research Center for Fisheries Oceanography and Marine Ecosystem, National Research Institute of Fisheries Sciences, Fisheries Research Agency, Yokohama, Kanagawa, Japan. The horizontal distribution of radioactive cesium (Cs) derived from the Fukushima Dai-ichi nuclear power plant (FNPP) in the North Pacific is still unclear due to the limitation of direct measurement of the seawater in the open ocean. We present the result of direct observation of radioac...

Ambe, D., Komatsu, K., Okuno, A., Shimizu, M., and Takasuka, A.: Survival response during early larval stage of Japanese Sardine to physical oceanic conditions leading to their recruitment, Proc. Techno-Ocean 2010, CD-ROM, 2010.; Aoyama, M. and Hirose, K.: Radiometric determination of anthropogenic radionuclides in seawater, in: Analysis of Environmetal Radionuclides, Radioactivity in the Environment, vol. 2, edited by: Povinec, P. P., Elsevier, Amsterdam, London, 137–16...

Read More
  • Cover Image

Export of 134 Cs and 137 Cs in the Fukushima River Systems at Heav...

By: M. Yamamoto; S. Tomihara; S. Ochiai; M. Kanamori; S. Nagao; K. Fukushi

Description: Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Nomi, Ishikawa 923-1224, Japan. At stations on the Natsui River and the Same River in Fukushima Prefecture, Japan, effects of a heavy rain event on radiocesium export were studied after Typhoon Roke during 21–22 September 2011, six months after the Fukushima Dai-ichi Nuclear Power Plant accident. Radioactivity of 134Cs and 137C...

Brouwer, E., Baeyens, B., Maes, A., and Cremers, A. J.: Cesium and rubidium ion equilibria in illite clay, Phys. Chem., 87, 1213–1219, 1983.; Chino, M., Nakayama, H., Nagai, H., Terada, H., Katata, G., and Yamazawa, H.: Preliminary estimation of release amounts of 131I and 137Cs accidentally discharged from the Fukushima Daiichi Nuclear Power Plant into the atmosphere, J. Nucl. Sci. Technol., 48, 1129–1134, 2011.; Facchinelli, A., Gallinia, L., Barb...

Read More
  • Cover Image

Estimation of Positive Sum-to-one Constrained Zooplankton Grazing ...

By: D. Dumont; A. Samuelsen; L. Bertino; E. Simon

Description: Nansen Environmental and Remote Sensing Center, Norway. We consider the estimation of the grazing preferences parameters of zooplankton in ocean ecosystem models with ensemble-based Kalman filters. These parameters are introduced to model the relative diet composition of zooplankton that consists of phytoplankton, small size-classes of zooplankton and detritus. They are positive values and their sum is equal to one. However, the sum-to-one constraint ca...

Aksnes, D., Ulvestad, K., Bali{ñ}o, B., Berntsen, J., and Svendsen, E.: Ecological modelling in coastal waters: towards predictive physical-chemical-biological simulation models, Ophelia, 41, 5–36, 1995.; Anderson, J. L.: An ensemble adjustment Kalman filter for data assimilation, Mon. Weather Rev., 129, 2884–2903, 2001.; Bertino, L., Evensen, G., and Wackernagel, H.: Sequential D}ata {A}ssimilation {T}echniques in {O}ceanography, {Int. Stat. Rev., 71, 223–241, 2003.; Be...

Read More
  • Cover Image

Formation of Anoxia and Denitrification in the Bottom Waters of a ...

By: A. Shivaprasad; J. G. Vijay; K. R. Muraleedharan; N. Chandramohanakumar; C. K. Haridevi; K. K. Balachandran; C. Revichandran; M. Nair; G. D. Martin; G. Rejomon; N. V. Madhu; K. V. Jayalakshmy

Description: National Institute of Oceanography, Regional Centre, Kochi-682018, India. Hydrographic characteristics of the southwest coast of India and its adjoining Cochin backwaters (CBW) were studied during the summer monsoon period. Anomalous formation of anoxia and denitrification were observed in the bottom layers of CBW, which have not been previously reported elsewhere in any tropical estuarine systems. The prevalent upwelling in the Arabian Sea (AS) brought...

Abril, G. and Frankignoulle, M.: Nitrogen–alkalinity interactions in the highly polluted Scheldt basin (Belgium), Water. Res., 35, 844–850, 2001.; Abril, G., Etcheber, H., Delille, B., Frankignoulle, M., and Borges, A. V.: Carbonate dissolution in the turbid and eutrophic Loire estuary, Mar. Ecol. Prog. Ser., 259, 129–138, 2003.; Babu, M. T., Kesava Das, V., and Vethamony, P.: BOD-DO modeling and water quality analysis of a waste water outfall off Kochi, west coast of In...

Read More
  • Cover Image

Microbial Assemblages on a Cold-water Coral Mound at the SE Rockal...

By: M. S. S. Lavaleye; G. C. A. Duineveld; C. Whalen; F. Mienis; J. D. L. Van Bleijswijk; H. J. Witte

Description: NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 59, 1790 AB Den Burg, the Netherlands. This study shows the microbial community composition over Haas Mound, one of the most prominent cold-water coral mounds of the Logachev Mound Province (Rockall Bank, NE Atlantic), outlining distribution patterns both vertically from the seafloor to the water column and laterally across the mound and coupling this to mound topography and hydrography. Samples...

Ainsworth, T. D., Thurber, R. V., and Gates, R. D.: The future of coral reefs: a microbial perspective, Trends Ecol. Evol., 25, 233–240, 2010.; Alsheikh-Hussain, A.: Spatial Exploration and Characterization of Endozoicomonas spp. Bacteria in Stylophora pistillata Using Fluorescence In Situ Hybridization, King Abdullah University, Thesis, 2011.; Bayer, T., Arif, C., Ferrier-Pagès, C., Zoccola, D., Aranda, M., and Voolstra, C. R.: Bacteria of the genus Endozoicomonas domin...

Read More
 
1
|
2
|
3
Records: 1 - 20 of 45 - Pages: 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.