Search results for "House"

Nitrous oxide production in the terrestrial environment

2011

Chapitre : 11; Terrestrial ecosystems are a major source of nitrous oxide (N2O), with soils accounting for ~70% of the atmospheric loading of this greenhouse gas. Here we provide a synthesis of current understanding of the environmental regulation of N2O production and reduction through different microbial pathways, presenting examples of where measured emissions have been related to characterizations of the underpinning microbial communities. We explore the direct and indirect influence of plants on rhizosphere N2O production, reduction and net emission, and the interactions between N2O production and methane oxidation, as examples of coupling between the C and N cycles that need to be con…

Bridging microbial community ecology and ecosystem functioning

2014

Microbial communities have a central role in many ecosystem functions such as biogeochemical cycling. Large variation in N-fluxes has been widely documented, mirroring the complexity of the underlying mechanisms. However, application of molecular biology approaches during the last decade has given the opportunity to look beyond these fluxes and to study the genetic and the ecology of the microorganisms involved in N-cycling. In this talk, I will give examples of a trait-centered approach for bridging microbial community ecology, microbial processes and ecosystem functioning.

Impact des systèmes de culture en protection intégrée contre les adventices sur l'intensité des émissions de N2O par les sols

2013

Linking microbial diversity and ecosystem functioning: The nitrogen cycle example

2014

Microbial communities have a central role in ecosystem processes by driving the Earth’s biogeochemical cycles. However, the importance of microbial diversity for ecosystem functioning is still debated. While functional trait-based approaches are commonly used for at least two decades in microbiology, most microbial diversity studies are still carried out with the rRNA genes. This talk will show how metagenomic approaches targeting microbial guilds involved in nitrogen cycling can help bridging microbial community ecology and ecosystem processes in terrestrial environments.

Caractérisation génotypique et le phénotypique de souches de Rhizobia par rapport à leur capacité à réduire le protoxyde d’azote (N2O), puissant gaz …

2012

Rapport de Stage de Master 2 EA MERS CT3; Master

Technical committee of the project SYMGES

2013

EA Pôle MERS. Rapport final de contrat de recherche INRA (communication orale invitée, 46 slides). Présenté le 24 septembre 2013 au BASF SE, Limburgerhof en Allemagne par Cécile Revellin seule. SYMGES – Projet partenarial (2013) – Coordination C. Hénault, UR SOLS Conduit avec l’unité d’Agroécologie de Dijon, en partenariat avec un industriel des biotechnologies agricoles, ce projet étudie la capacité des rhizobia (microorganismes vivant en symbiose avec les légumineuses et possédant la capacité de fixer l’azote) à réduire le N2O en N2 pour utiliser cette fonction microbienne afin de réduire les émissions du gaz à effet de serre par les sols agricoles.

Environmental spillovers and their impacts on housing prices: A spatial hedonic analysis

2015

This paper investigates the spatial dimension of environmental factors on housing prices. We develop spatial hedonic models to estimate the implicit prices of various environmental attributes. The spatial dimension can be interpreted in terms of local or global spillovers. We conduct an empirical study in the Loire estuary (France). We focus on natural areas and more artificialized ones (ocean frontage, wetlands, rivers, and noisy roads). We show that, depending on the spatial model used, the implicit price is more than just the estimated coefficient value and combines both a feedback effect and a propagation effect.

L'HABITAT DU BRONZE ANCIEN DANS L'EST DIJONNAIS (CÔTE D'OR, BOURGOGNE) : ARCHITECTURE, TERROIR ET TERRITOIRE

2015

The first discoveries concerning the Early Bronze Age in the region of Genlis (Burgundy, Côte d’Or) were madeduring the construction of the A39 motorway, the first major development project to be associated with archaeological monitoring. Excavations made by H. Dartevelle in the early 1990’s revealed two large areas of settlements with two ellipsoidal houses, smaller buildings and satellite structures (Dartevelle 1992). The site of Genlis-Izier, “Le Joannot” remained the only local reference for early Bronze Age habitats until the early 2010’s, when the construction of the L.G.V. Rhin-Rhône considerably updated this data. This article provides a summary of new and existing discoveries, and …

Housekeepers in French Hotels : Cinderella in the Shadows (Chapter 5)

2008

08018. Introduction by Robert Solow

Fractal dimension versus density of built-up surfaces in the periphery of Brussels

2007

International audience; This paper aims at showing the usefulness of the fractal dimension for characterizing the spatial structure of the built-up surfaces within the periurban fringe. We first discuss our methodology and expectations in terms of operationality of the fractal dimension theoretically and geometrically. An empirical analysis is then performed on the southern periphery of Brussels (Brabant Wallon). The empirical analysis is divided into two parts: first, the effect of the size and shape of the windows on the fractal measures is empirically evaluated; this leads to a methodological discussion about the importance of the scale of analysis as well as the real sense of fractality…