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Écologie Urbaine : Quoi, Pourquoi, Comment ?
2018
Abbadie, Luc | Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris ) ; Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Monitoring mangrove forests after aquaculture abandonment using time series of very high spatial resolution satellite images: A case study from the Perancak estuary, Bali, Indonesia
2018
Proisy, Christophe | Viennois, Gaëlle | Sidik, Frida | Andayani, Ariani | Enright, James Antony | Guitet, Stéphane | Gusmawati, Niken | Lemonnier, Hugues | Muthusankar, Gowrappan | Olagoke, Adewole, A | Prosperi, Juliana | Rahmania, Rinny | Ricout, Anaïs, A | Soulard, Benoit | Suhardjono, X | Institut Français de Pondichéry (IFP) ; Ministère de l'Europe et des Affaires étrangères (MEAE)-Centre National de la Recherche Scientifique (CNRS) | Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]) | The Ministry of Marine Affairs and Fisheries | Mangrove Action Project | Groupement d'Interêt Public Ecosystèmes Forestiers GIP ECOFOR (GIP ECOFOR ) | Ifremer - Nouvelle-Calédonie ; Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) | Université de la Nouvelle-Calédonie (UNC) | Technische Universität Dresden = Dresden University of Technology (TU Dresden) | Indonesian Institute of Sciences (LIPI) | Projet INDESO; http://www.indeso.web.id
International audience | Revegetation of abandoned aquaculture regions should be a priority for any integrated coastal zone management (ICZM). This paper examines the potential of a matchless time series of 20 very high spatial resolution (VHSR) optical satellite images acquired for mapping trends in the evolution of mangrove forests from 2001 to 2015 in an estuary fragmented into aquaculture ponds. Evolution of mangrove extent was quantified through robust multitemporal analysis based on supervised image classification. Results indicated that mangroves are expanding inside and outside ponds and over pond dykes. However, the yearly expansion rate of vegetation cover greatly varied between replanted ponds. Ground truthing showed that only Rhizophora species had been planted, whereas natural mangroves consist of Avicennia and Sonneratia species. In addition, the dense Rhizophora plantations present very low regeneration capabilities compared with natural mangroves. Time series of VHSR images provide comprehensive and intuitive level of information for the support of ICZM.
Show more [+] Less [-]Traitement de l'azote global d'effluents concentrés et avec variations de charges par filtres plantés de végétaux avec aération forcée | Total nitrogen removal of highly concentrated and variable influents by treatment wetlands using forced aeration
2018
Prost Boucle, S. | Garcia, Oscar | Troesch, S. | Masson, M. | Petitjean, Anne | Molle, Pascal
Intensified treatment wetlands can reduce treatment wetlands footprint, improve efficiencies and deal with unusual influent characteristics. A specific design of 750 p.e. has been implemented for a highway rest area in France.
Show more [+] Less [-]From soil to edible plant parts: how to predict and limit contaminationof crops by inorganic trace elements?
2012
Nguyen, Christophe | Cornu, Jean-Yves | Denaix, Laurence | Laporte, Marie-Aline | Sappin-Didier, Valerie, | Schneider, Andre | Zarouali, Nadia
Modelling of cadmium uptake by plant roots in agricultural soil: construction and sensitivity analysis of the model
2012
Zhongbin, Lin | Nguyen, Christophe | Schneider, Andre
Carbon isotope composition, macronutrient concentrations, and carboxylating enzymes in relation to the growth of Pinus halepensis mill. when subject to ozone stress
2010
Inclan , Rosa (Ecotoxicology of Air Pollution, Madrid(Espagne).) | Gimeno , Benjamin S. (Ecotoxicology of Air Pollution, Madrid(Espagne).) | Peñuelas , Josep (Universitat Autónoma de Barcelona, Barcelone(Espagne).) | Gerant , Dominique (INRA , Champenoux (France). UMR 1137 Ecologie et Ecophysiologie Forestières) | Querido , Alberto (Ecotoxicology of Air Pollution, Madrid(Espagne).)
We present here the effects of ambient ozone (O3)-induced decline in carbon availability, accelerated foliar senescence, and a decrease in aboveground biomass accumulation in the Aleppo pine (Pinus halepensis Mill.). Aleppo pine seedlings were continuously exposed in open-top chambers for 39 months to three different types of O3 treatments, which are as follows: charcoal-filtered air, nonfiltered air (NFA), and nonfiltered air supplemented with 40 ppb O3 (NFA+). Stable carbon isotope discrimination (Δ) and derived time-integrated ci/ca ratios were reduced after an accumulated ozone exposure over a threshold of 40 ppb (AOT40) value from April to September of around 20,000 ppb·h. An AOT40 of above 67,000 ppb·h induced reductions in ribulose-1, 5-biphosphate carboxylase/oxygenase activity, aboveground C and needle N and K concentrations, the C/N ratio, Ca concentrations in twigs under 3 mm, and the aerial biomass, as well as increases in needle P concentrations and phosphoenolpyruvate carboxylase (PEPC) activity and the N and K concentrations in twigs under 3 mm. Macronutrients losses, the limitations placed on carbon uptake, and increases in catabolic processes may be the causes of carbon gain diminution in leaves which was reflected as a reduction in aboveground biomass at tree level. Stimulation of PEPC activity, the consequent decreased Δ, and compensation processes in nutrient distribution may increase O3 tolerance and might be interpreted as part of Aleppo pine acclimation response to O3.
Show more [+] Less [-]Thermodynamics and kinetic processes at coal interface for CO2 geological storage
2008
Charriere, Delphine | Pokryszka, Zbigniew | Behra, Philippe
Currently, the geological storage of CO2 is heavily studied around the world in order to limit global warming due to the greenhouse effect. The atmospheric CO2, which has been steadily increasing for more than a century, is assumed to be in a large part responsible of this warming. Nowadays, various options have been considering to store CO2 in an underground environment for periods covering several centuries. Among the options, one is to inject it in unexploited coal seams. The objective of our work is to characterise the interactions between CO2 ans coal interfaces from two French coal seams. This will contribute to identify the most adapted coal basin which could be used for storing CO2 in France.
Show more [+] Less [-]Biomonitoring of air polluants with plants : considerations for the future
2004
De Temmerman, Ludwig | Bell, Nigel | Garrec, Jean-Pierre, | Klumpp, Andreas | Krause, Georg | Tonneijck, Alfred
Modelling of cadmium uptake by plant roots in agricultural soils. Exploration by steady-state analytical solution of numeric simulation results
2012
Schneider, Andre | Zhongbin, Lin | Nguyen, Christophe
Emission factors and detailed chemical characterization of PM and VOCs from 4 in-use petrol and diesel passenger cars
2012
Polo, L. | Goriaux, M. | Jaffrezo, J.L. | Besombes, Jean-Luc | André, M. | Charron, A.