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Changes in the Adriatic Oceanographic Properties Induced by the Ea...

By: J. Šepić; S. Matijević; I. Vilibić

Description: Institute of Oceanography and Fisheries, Split, Croatia. Long-term time series of physical and chemical parameters collected between 1960 and 2010 along the Palagruža Sill transect, middle Adriatic Sea, have been investigated in terms of average water properties and their variability. Nutrients, especially orthophosphates, reached rather higher levels of concentration below the euphotic zone between 1991 and 1998, the highest in the i...

Artegiani, A., Bregant, D., Paschini, E., Pinardi, N., Raicich, F., and Russo, A.: The Adriatic Sea general circulation. Part I: air–sea interactions and water mass structure, J. Phys. Oceanogr., 27, 1492–1514, 1997.; Beuvier, J., Sevault, F., Herrmann, M., Kontoyiannis, H., Ludwig, W., Rixen, M., Stanev, E., Beranger, K., and Somot, S.: Modeling the Mediterranean Sea interannual variability during 1961–2000: Focus on the Eastern Mediterranean Transient, J. Geophys. Res....

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Biomass Uptake and Fire as Controls on Groundwater Solute Evolutio...

By: R. Chisari; G. Jacobsen; J. A. Webb; J. F. Dean; P. E. Dresel

Description: Agricultural Sciences Department, La Trobe University, Bundoora, Victoria, Australia. The chemical composition of groundwater and surface water is often considered to be dominated by water–rock interactions, particularly weathering; however, it has been increasingly realised that plant uptake can deplete groundwater and surface water of nutrient elements. Here we show, using geochemical mass balance techniques that at our study site in Southwest Vi...

Adams, S., Titus, R., Pieterson, K., Tredoux, G., and Harris, C.: Hydrochemical characteristics of aquifers near Sutherland, Western Karoo, South Africa, J. Hydrol., 241, 91–109, 2001.; Adelana, M., Dresel, E., Hekmeijer, P., Zydor, H., Webb, J., Reynolds, M., and Ryan, M.: A comparison of streamflow and water balances in adjacent farmland and forest catchments in South-Western Victoria, Australia, Hydrol. Process., in press, 2014.; Atkinson, P. L.: Geology and geochemis...

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Characterization of Broom Fibers for Prb in the Remediation of Aqu...

By: A. Molinari; M. F. Rivera; S. Troisi; C. Fallico

Description: University of Calabria, Department of Soil Conservation, Rende (CS), Italy. The present level of pollution, increasingly involving ground waters, constitutes a serious risk for the environment and also for human health. Therefore the remediation of saturated and unsaturated soils to remove the pollutant materials is required more and more frequently. In the present paper, the possibility of removing the specific pollutant typology constituted of heavy m...

Angelini, L. G., Lazzeri, A., Levita, G., Fontanelli, D., and Bozzi, C.: Ramie (Boehmeria nivea (L.) Gaud.) and Spanish Broom (Spartium junceum L.) fibres for composite materials: agronomical aspects, morphology and mechanical properties, Industrial Crops and Products, 11, 145–161, 2000.; Bonomo, L.: 57° Corso di aggiornamento in Ingegneria Sanitaria – Ambientale. Siti Contaminati: Tecnologie di risanamento, Dipartimento di Ingegneria Idraulica, Ambientale e del Rilevame...

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A Model–data Intercomparison of Simulated Runoff in the Contiguous...

By: Y. Wei; I. T. Baker; B. Poulter; R. B. Cook; C. R. Schwalm; N. Zeng; P. Caldwell; G. Sun; H. Q. Tian; D. N. Huntinzger; R. P. Neilson

Description: School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USA. Significant changes in the water cycle are expected under current global environmental change. Robust assessment of these changes at global scales is confounded by shortcomings in the observed record. Modeled assessments yield conflicting results which are linked to differences in model structure and simulation protocol. Here we compare sim...

Alkama, R., Decharme, B., Douville, H., and Ribes, A.: Trends in global and basin-scale runoff over the late twentieth century: methodological issues and sources of uncertainty, J. Climate, 24, 3000–3014, doi:10.1175/2010JCLI3921.1, 2011.; Bachelet, D., Lenihan, J. M., Daly, C., Neilson, R. P., Ojima, D. S., and Parton, W. J.: MC1: a dynamic vegetation model for estimating the distribution of vegetation and associated ...

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Co2 Exchange and Carbon Balance in Two Grassland Sites on Eutrophi...

By: O. Kolle; P. A. Leffelaar; J. Van Walsem; F. Möller; J. Van Huissteden; E. M. Veenendaal; F. Berendse; A. P. Schrier-uijl

Description: Nature Conservation and Plant Ecology group, Wageningen University, Droevendaalse steeg 3a 6708 PD Wageningen, The Netherlands. In this study we investigated the role of intensive and extensive dairy farm practices on CO2 exchange and the carbon balance of peatlands by means of eddy covariance (EC) measurements. Year long EC measurements were made in two adjacent farm sites on peat soil in the western part of the Netherlands. One site (Stein) ...

Moncrieff, J. B., Malhi, Y., and Leuning, R.: The propagation of errors in long-term measurements of land-atmosphere fluxes of carbon and water, Global Change Biol., 2, 231–240, 1996.; Moncrieff, J., Valentini, R., Greco, S., Seufert, G., and Ciccioli, P.: Trace gas exchange over terrestrial ecosystems: methods and perspectives in micrometeorology, J. Exp. Botany, 48, 1133–1142, 1997.; Nieveen, J. P., Jacobs, C. M. J., and Jacobs, A. F. G.: Diurnal and seasonal variation...

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Localising the Nitrogen Imprint of the Paris Food Supply: the Pote...

By: J. Garnier; P. Chatzimpiros; M. Silvestre; V. Thieu; S. Barles; G. Billen

Description: UMR Sisyphe, UPMC/CNRS, Paris, France. The Seine watershed has long been the food-supplying hinterland of Paris, providing most of the animal and vegetal protein consumed in the city. Nowadays, because of the land specialisation of agriculture made possible by the shift from manure-based to synthetic nitrogen fertilisation, the Seine watershed, although it exports 80% of its huge cereal production, still provides most of the cereal consumed by the Pa...

Abad, R.: Le Grand Marché: l'Approvisionnement de Paris sous l'Ancien Régime, Fayard, Paris, 2002.; Agreste: Ministry of Agriculture, available at: www.agreste.agriculture.gouv.fr/, last access: 8 November 2011, 2006; Ballingall, J. and Winchester, N.: Food miles: starving the poor?, University of Otago Economics Discussion Papers, No. 0812, available at:

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Intra-annual Variability of Carbon and Nitrogen Stable Isotopes in...

By: H. Naik; R. Roy; S. W. A. Naqvi; M. V. Maya; D. M. Shenoy; S. G. Karapurkar

Description: National Institute of Oceanography, Council for Scientific and Industrial Research, Dona Paula, Goa – 403004, India. The Δ13C and Δ15N of water-column suspended particulate organic matter (SPOM), elemental carbon and nitrogen concentrations, and C/N ratios in SPOM, along with ancillary chemical and biological variables including phytoplankton pigment abundance, were determined every month, with the partial exception of the southwest...

Agnihotri, R., Kurian, S., Fernandes, M., Reshma, K., D'Souza, W., and Naqvi, S. W. A.: Variability of subsurface denitrification and surface productivity in the coastal eastern Arabian Sea over the past seven centuries, Holocene, 18, 755–764, 2008.; Agnihotri, R., Naqvi, S. W. A., Kurian, S., Altabet, M. A., and Bratton, J. F.: Is δ15N of sedimentary organic matter a good proxy for paleodenitrification in coastal waters of the eastern Arabian Sea?, Geophys. M...

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The Carbon Balance of South America: Status, Decadal Trends and Ma...

By: R. Jackson; T. Feldpausch; J. Miller; M. Lomas; Y. Malhi; K. Zhao; P. Peylin; T. Baker; R. J. W. Brienen; L. Gatti; J.-p. Ometto; L. Aragão; H. Ribeiro Da Rocha; J. Lloyd; B. Poulter; S. Zaehle; O. Phillips; S. Sitch; J.-l. Guyot; M. Gloor; C. Huntingford; R. Houghton

Description: University of Leeds, School of Geography, Woodhouse Lane, LS9 2JT, Leeds, UK. We attempt to summarize the carbon budget of South America and relate it to its dominant controls: population and economic growth, changes in land use practices and a changing atmospheric environment and climate. Flux estimation methods which we consider sufficiently reliable are fossil fuel emission inventories, biometric analysis of old-growth rainforests, estimation of c...

Achard, F., Eva, H. D., Stibig, H.-J., Mayaux, P., Gallego, J., Richards, T., and Malingreau, J.-P.: Determination of deforestation rates of the World's humid tropical forests, Science, 297, 999–1002, doi:10.1126/science.1070656, 2002.; Barbosa, R. I. and Fearnside, P. M.: Pasture burning in Amazonia: dynamics of residual biomass and the storage and release of aboveground carbon, J. Geophys., Res., 101(D20), 25847–258...

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Impact of Changes in Freezing and Thawing on Foliar Litter Carbon ...

By: B. Tan; F. Wu; W. Yang; C. Peng; J. Zhu; J. Zhang

Description: Key Laboratory of Ecological Forestry Engineering, Institute of Ecology and Forestry, Sichuan Agricultural University, Chengdu, 611130, China. Carbon (C) release from foliar litter is a primary component in C exchange between the atmosphere and terrestrial ecosystems, but little information is currently related to the effects of freezing and thawing dynamics on C release of foliar litter in cold regions. A two-year field litter decomposition ...

Aerts, R.: The freezer defrosting: global warming and litter decomposition rates in cold biomes, J. Ecol.,; Aerts, R., Callaghan, T. V., Dorrepaal, E., van Logtestijn, R. S. P., and Cornelissen, J. H. C.: Seasonal climate manipulations have only minor effects on litter decomposition rates and N dynamics but strong effects on litter P dynamics of sub-arctic bog species, Oecologia, 170, 809–819, 2012.; Ayres, E., Steltzer, H., Berg, S., and Wall, D. H.: Soil biota accelera...

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Factors Controlling the Temporal Variability of Mass and Trace Met...

By: R. Losno; C. Migon; J.-c. Miquel; D. Cossa; N. Leblond; L.-e. Heimbürger

Description: Université Pierre et Marie Curie (UPMC), UMR 7093, Observatoire océanologique de Villefranche-sur-Mer, 06234, Villefranche-sur-Mer, France. Mass fluxes and trace metal (TM) fluxes were measured from samples collected in 2003 to 2005 from sediment traps deployed at 1000 m depth at the DYFAMED (DYnamique des Flux Atmosphériques en MEDiterranée) time-series station (central Ligurian Sea, 2350 m depth). A highly significant correlation is observed between al...

Armstrong, R. A., Lee, C., Hedges, J. I., Honjo, S., and Wakeham, S. G.: A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast material, Deep-Sea Res. Pt. II, 49, 219–236, 2002.; Armstrong, R. A., Lee, C., Peterson, M. L., Cochran, J. K., and Wakeham, S. G.: Settling velocity spectra and the ballast ratio hypothesis, Deep-Sea Res. Pt. II, 56, 1470–1478, 2009.; Baker, E. T., Milburn, H. B., and Tennant, D...

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Effects of Increased PCo2 and Geographic Origin on Purple Sea Urch...

By: B. Gaylord; E. Sanford; E. A. Lenz; A. D. Russell; J. D. Hosfelt; M. Lavigne; M. K. Young; T. M. Hill

Description: Bodega Marine Laboratory, University of California, Davis, 2099 Westside Road, Bodega Bay, CA 94923 USA. Ocean acidification will likely have negative impacts on invertebrates producing skeletons composed of calcium carbonate. Skeletal solubility is partly controlled by the incorporation of foreign ions (such as Mg and Sr) into the crystal lattice of these skeletal structures, a process that is sensitive to a variety of biological and environmental facto...

Andersson, A. J., Mackenzie, F. T., Bates, N. R.: Life on the margin: implications of ocean acidification on Mg-calcite, high latitude and cold-water marine calcifiers, Mar. Ecol. Progr. S., 373, 265–273, 2008.; Beniash, E, Aizenberg, J, Addadi, L, Weiner, S.: Amorphous calcium carbonate transforms into calcite during sea urchin larval spicule growth, P. Roy. Soc. London, 264, 461–465, 1997.; Byrne, M.: Impact of ocean warming and ocean acidification on marine invertebra...

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Ecosystem-specific Selection of Microbial Ammonia Oxidizers in an ...

By: G. Ren; Z. Jia; L. Lu; M. Saiful Alam; X. Peng; Y. Zheng

Description: State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, Jiangsu Province, China. The function of ammonia-oxidizing archaea (AOA) and bacteria (AOB) depends on the availability of ammonia substrate and the supply of oxygen. The interactions and evolutions of AOA and AOB communities along ecological gradients of substrate availability in complex environment have been much debated,...

Auguet, J. C., Triado-Margarit, X., Nomokonova, N., Camarero, L., and Casamayor, E. O.: Vertical segregation and phylogenetic characterization of ammonia-oxidizing archaea in a deep oligotrophic lake, ISME J., 6, 1786–1797, 2012.; Beman, J. M., Popp, B. N., and Francis, C. A.: Molecular and biogeochemical evidence for ammonia oxidation by marine Crenarchaeota in the Gulf of California, ISME J., 2, 429–441, 2008.; Bodelier, P., Libochant, J. A., Blom, C., and Laanbroek, H...

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Microbial Carbon Recycling: an Underestimated Process Controlling ...

By: M. Helfrich; J. Dyckmans; M. Dippold; A. Basler

Description: Centre for Stable Isotope Research and Analysis, Büsgen Institute, Georg-August-University Götingen, Göttingen, Germany. The mean residence times (MRT) of different compound classes of soil organic matter (SOM) do not match their inherent recalcitrance to decomposition. One reason for this is the stabilisation within the soil matrix, but recycling, i.e. the reuse of old organic material to form new biomass may also play a role as it uncouples the r...

Amelung, W. and Zhang, X.: Determination of amino acid enantiomers in soils, Soil Biol. Biochem., 33, 553–562, 2001.; Amelung, W., Cheshire, M. V., and Guggenberger, G.: Determination of neutral and acidic sugars in soil by capillary gas-liquid chromatography after trifluoroacetic acid hydrolysis, Soil Biol. Biochem., 28, 1631–1639, 1996.; Amelung, W., Brodowski, S., Sandhage-Hofmann, A., and Bol, R.: Combining biomarker with stable isotope analyses for assesing the tran...

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Biogeochemical Implications of Comparative Growth Rates of Emilian...

By: R. M. Sheward; A. J. Poulton; C. J. Daniels

Description: Ocean and Earth Sciences, National Oceanography Centre Southampton, University of Southampton, UK. Coccolithophores are a diverse and biogeochemically important group of phytoplankton in terms of the production and export of calcite, yet the comparative physiology and ecology of species other than the ubiquitous Emiliania huxleyi is poorly understood. Despite assumptions that Emiliania huxleyi is a fast growing species, we found it ha...

Baumann, K. H., Böckel, B., and Frenz, M.: Coccolith contribution to South Atlantic carbonate sedimentation, in: Coccolithophores, From Molecular Processes to Global Impact, edited by: Thierstein, H. R. and Young, J. R., Springer, Berlin, 367–402, 2004.; Broerse, A. T. C., Ziveri, P., van Hinte, J. E., and Honjo, S.: Coccolithophore export production, species composition, and coccolith-CaCO3 fluxes in the NE Atlantic (34° N 21° W and 48° N 21° W), Deep-Sea Res...

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Efficiency and Adaptability of the Benthic Methane Filter at Quepo...

By: C. Hensen; M. Nuzzo; S. Krause; P. Linke; T. Treude; A. W. Dale; P. Steeb

Description: GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstrasse 1–3, 24148 Kiel, Germany. Large amounts of methane are delivered by fluids through the erosive forearc of the convergent margin offshore Costa Rica and lead to the formation of cold seeps at the sediment surface. Besides mud extrusion, numerous cold seeps are created by landslides induced by seamount subduction or fluid migration along major faults. Most of the dissolved methane reach...

Aiello, I. W.: Fossil seep structures of the Monterey Bay region and tectonic/structural controls on fluid flow in an active transform margin, Palaeogeogr. Palaeocl., 227, 124–142, 2005.; De Beer, D., Sauter, E., Niemann, H., Kaul, N., Witte, U., Schlüter, M., and Boetius, A.: In situ fluxes and zonation of microbial activity in surface sediments of the Håkon Mosby Mud Volcano, Limnol. Oceanogr., 51, 1315–1331, 2006.; Biastoch, A., Treude, T., Rüpke, L. H., Riebesell, U....

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Variability and Recent Trends in the African Carbon Balance : Volu...

By: P. Friedlingstein; S.-l. Piao; P. Cadule; P. Ciais; A. Chédin

Description: LSCE, UMR CEA-CNRS, CE, L'Orme des Merisiers, Gif-sur-Yvette, France. We modeled the African carbon balance over the past century using the process based ORCHIDEE model, forced by changing climate and human induced changes in land use. The model includes a simple parameterization of natural fires, but the natural vegetation dynamics was ignored. The period analyzed is 1901–2002. Overall, we found that the African net carbon balance (Net Biome Productivi...

Sitch, S., Huntingford, C., Gedney, N., Levy, P., Lomas, M., Piao, S. L., Betts, R., Ciais, P., Cox, P., Friedlingstein, P., Jones, C. D., Prentice, I. C., and Woodward, F. I.: Evaluation of the terrestrial carbon cycle, future plant geography and climate-carbon cycle feedbacks using 5 Dynamic Global Vegetation Models (DGVMs),Glob. Change Biol., 14, 1–25, 2008.; Stone, R.: Can oilpalm plantations come clean?, Science, 317, 1491, 2007.; Sultan B., Baron, C., Dingkuhn, M.,...

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On the Potential Vegetation Feedbacks That Enhance Phosphorus Avai...

By: S. I. Higgins; A. Kleidon; T. Hickler; P. Porada; C. Buendíia; S. Arens

Description: Biospheric Theory and Modelling group, Max Planck Institute for Biogeochemistry, Hans-Knöll Str. 10, 07745 Jena, Germany. In old and heavily weathered soils, the availability of P might be so small that the primary production of plants is limited. However, plants have evolved several mechanisms to actively take up P from the soil or mine it to overcome this limitation. These mechanisms involve the active uptake of P mediated by mycorrhiza, biotic d...

Allen, M., Swenson, W., Querejeta, J., Egerton-Warburton, L., and Treseder, K.: Ecology of mycorrhizae: a conceptual framework for complex interactions among plants and fungi, Annu. Rev. Phytopathol., 41, 271–303, 2003.; Amiotte Suchet, P. and Probst, J.-L.: A global 1 ° by 1 ° distribution of atmospheric/soil CO2 consumption by continental weathering and of riverine HCO3 yield, Technical report, Centre National de la Recherche Scientifique, Center ...

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Towards Multi-tracer Data-assimilation: Biomass Burning and Carbon...

By: K. Schaefer; J. B. Miller; W. Peters; G. R. Van Der Werf; M. C. Krol; I. R. Van Der Velde

Description: Meteorology and Air Quality, Wageningen University, Wageningen, the Netherlands. We present an enhanced version of the SiBCASA photosynthetic/biogeochemical model for a future integration with a multi-tracer data-assimilation system. We extended the model with (a) biomass burning emissions from the SiBCASA carbon pools using remotely sensed burned area from Global Fire Emissions Database (GFED) version 3.1, (b) a new set of 13C pools tha...

Alden, C. B., Miller, J. B., and White, J. W. C.: Can bottom-up ocean CO2 fluxes be reconciled with atmospheric 13C observations?, Tellus B, 62, 369–388, doi:10.1111/j.1600-0889.2010.00481.x, 2010.; Andreae, M. O.: Biomass burning: its history, use, and distribution and its impact on environmental quality and global change, in: Global Biomass Burning: Atmospheric, Climatic, and Biospheri...

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Short and Long Term Consequences of Larval Stage Exposure to Const...

By: S. C. Talmage; C. J. Gobler

Description: Stony Brook University, School of Marine and Atmospheric Sciences, 239 Montauk Hwy, Southampton, NY 11968, USA. While larval bivalves are highly sensitive to ocean acidification, the basis for this sensitivity and the longer term implications of this sensitivity are unclear. Experiments were performed to assess the short term (days) and long term (months) consequences of larval stage exposure to varying CO2 concentrations for calcifying bivalv...

Talmage, S. C. and Gobler, C. J.: Effects of carbon dioxide and a harmful alga (Aureococcus anophagefferens) on the growth and survival of larval oysters (Crassostrea virginica) and scallops (Argopecten irradians), Mar. Ecol. Prog. Ser., 464, 121–134, 2012.; Waldbusser, G. G., Bergschneider, H., and Green, M. A.: Size-dependent pH effect on calcification in post-larval hard clam Mercenaria spp., Mar. Ecol.-Prog. Ser., 417, 171–182, 2010.; Cast...

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Parameter-induced Uncertainty Quantification of Soil N2O, No and C...

By: C. Werner; E. Haas; R. Kiese; K. Butterbach-bahl; K.-h. Rahn

Description: Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Atmospheric Environmental Research, Kreuzeckbahnstr. 19, 82467 Garmisch-Partenkirchen, Germany. Assessing the uncertainties of simulation results of ecological models is becoming of increasing importance, specifically if these models are used to estimate greenhouse gas emissions at site to regional/national levels. Four general sources of uncertainty effect the outcome...

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.-Atmos., 106, 34155–34166, doi:10.1029/2000JD000173, 2001.; Butterbach-Bahl, K., Rothe, A., and Papen, H.: Effect of tree distance on N2O and CH4-fluxes from soils in temperate forest e...

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