Consulta: subjectFacets:"Phosphorus cycle"
Registros recuperados: 3
Data/hora: 18/05/2024 05:17:56

Planetary Boundaries:  Exploring the Safe Operating Space for Humanity
Provedor de dados: 7
Autores: Steffen, Will; Stockholm Resilience Centre, Stockholm University; Australian National University, Australia; will.steffen@anu.edu.au; Noone, Kevin; Stockholm Resilience Centre, Stockholm University; Department of Applied Environmental Science, Stockholm University; kevin.noone@stockholmresilience.su.se; Chapin, F. Stuart III; Institute of Arctic Biology, University of Alaska Fairbanks; fschapiniii@alaska.edu; Lambin, Eric; Department of Geography, University of Louvain; lambin@geog.ucl.ac.be; Lenton, Timothy M; School of Environmental Sciences, University of East Anglia; t.lenton@uea.ac.uk; Scheffer, Marten; Aquatic Ecology and Water Quality Management Group, Wageningen University; Marten.Scheffer@wur.nl; Folke, Carl; Stockholm Resilience Centre, Stockholm University; The Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences; carl.folke@beijer.kva.se; Schellnhuber, Hans Joachim; Potsdam Institute for Climate Impact Research; Environmental Change Institute and Tyndall Centre, Oxford University ; schellnhuber@pik-potsdam.de; de Wit, Cynthia A; Department of Applied Environmental Science, Stockholm University; cynthia.de.wit@itm.su.se; Hughes, Terry; ARC Centre of Excellence for Coral Reef Studies, James Cook University; terry.hughes@jcu.edu.au; van der Leeuw, Sander; School of Human Evolution and Social Change, Arizona State University; vanderle@asu.edu; Rodhe, Henning; Department of Meteorology, Stockholm University; rodhe@misu.su.se; Snyder, Peter K; Department of Soil, Water, and Climate, University of Minnesota; pksnyder@umn.edu; Costanza, Robert; Stockholm Resilience Centre, Stockholm University; Gund Institute for Ecological Economics, University of Vermont; rcostanz@uvm.edu; Svedin, Uno; Stockholm Resilience Centre, Stockholm University; uno.svedin@formas.se; Falkenmark, Malin; Stockholm Resilience Centre, Stockholm University; Stockholm International Water Institute; malin.falkenmark@siwi.org; Karlberg, Louise; Stockholm Resilience Centre, Stockholm University; Stockholm Environment Institute; louise.karlberg@stockholmresilience.su.se; Corell, Robert W; The H. John Heinz III Center for Science, Economics and the Environment ; Corell@heinzctr.org; Fabry, Victoria J; Department of Biological Sciences, California State University San Marcos; fabry@csusm.edu; Hansen, James; NASA Goddard Institute for Space Studies; James.E.Hansen@nasa.gov; Walker, Brian; Stockholm Resilience Centre, Stockholm University; CSIRO Sustainable Ecosystems; Brian.Walker@csiro.au; Liverman, Diana; Environmental Change Institute, School of Geography and the Environment; Institute of the Environment, University of Arizona ; diana.liverman@eci.ox.ac.uk; Richardson, Katherine; Earth System Science Centre, University of Copenhagen; kari@science.ku.dk; Crutzen, Paul; Max Planck Institute for Chemistry; air@mpch-mainz.mpg.de; Foley, Jonathan; Institute on the Environment, University of Minnesota; jfoley@umn.edu.
Anthropogenic pressures on the Earth System have reached a scale where abrupt global environmental change can no longer be excluded. We propose a new approach to global sustainability in which we define planetary boundaries within which we expect that humanity can operate safely. Transgressing one or more planetary boundaries may be deleterious or even catastrophic due to the risk of crossing thresholds that will trigger non-linear, abrupt environmental change within continental- to planetary-scale systems.   We have identified nine planetary boundaries and, drawing upon current scientific understanding, we propose quantifications for seven of them. These seven are climate change (CO2 concentration in the atmosphere &amp;#60;350 ppm and/or a maximum change...
Tipo: Peer-Reviewed Reports
Palavras-chave: Atmospheric aerosol loading; Biogeochemical nitrogen cycle; Biological diversity; Chemical pollution; Climate change; Earth; Global freshwater use; Land system change; Ocean acidification; Phosphorus cycle; Planetary boundaries; Stratospheric ozone; Sustainability.
Ano: 2009

Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements
Provedor de dados: 20
This manual describes the protocol approved by the international Scientific Steering Committee for the Joint Global Ocean Flux Study (JGOFS) for the most of the 20 JGOFS Core Measurements. However, the methods for the analysis of various parameters of the seawater CO2 system are described in a separate handbook. In order to have a complete set of the JGOFS measurements protocols, you should request a copy of the "Handbook of Methods for the Analysis of the Various Parameters of the Carbon Dioxide System in Seawater"version 2, A.G. Dickson and C. Goyet, eds. ORNL/CDIAC-74.
Tipo: Book
Palavras-chave: Oceanography; Ocean circulation; Oceanographic stations; Oceanographic data; Oceanographic surveys; Samples; Sampling; Data processing; Data; Data collections; Quality control; Salinity measurement; Oxygen; Inorganic carbon; Nitrites; Nitrates; Phosphorus compounds; Phosphorus cycle; Silicate minerals; Marine organisms; Microorganisms; Bacteriology; Bacteria; Zooplankton; Sampling; Nitrites; Nitrates; Zooplankton; Data processing; Data; Oxygen; Microorganisms; Bacteriology; Bacteria; Http://aims.fao.org/aos/agrovoc/c_6774; Http://aims.fao.org/aos/agrovoc/c_5190; Http://aims.fao.org/aos/agrovoc/c_5187; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_10289; Http://aims.fao.org/aos/agrovoc/c_49816; Http://aims.fao.org/aos/agrovoc/c_5477; Http://aims.fao.org/aos/agrovoc/c_4807; Http://aims.fao.org/aos/agrovoc/c_768; Http://aims.fao.org/aos/agrovoc/c_765.
Ano: 1994
URL: http://hdl.handle.net/1834/2795

Zooplankton nutrition study under conditions close to natural with the use of radioactive phosphorus
Provedor de dados: 5
Autores: Pavlovskaya, T; Zesenko, A.
Lack of a sensitive method for in situ study of the nutrition quantitative characteristics (and food balance in particular) for zooplankton populations in low-productivity regions was the reason for developing one. For the basis of such a method the authors selected the property of radioactive phosphorus isotopes of fast and effective embedding into all plankton components. The method described above allowed not only to quantitatively determine the consumption and transportation of a substance by individual species and populations of zooplankton; it opens new horizons for investigation of the zooplanktonic association role in regeneration of mineral phosphorus.
Tipo: Text
Palavras-chave: Phosphorus cycle; Phosphorus isotopes; Radioactive tracers; Analytical techniques; Food consumption; Zooplankton; Nutrition.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-1524.pdf