A5025301677- Soil and Unsaturated Flow
- Glaucoma and retinal disorders
- Agriculture and Rural Development Research
- Soil Carbon and Nitrogen Dynamics
- Soil Management and Crop Yield
- Soil Mechanics and Vehicle Dynamics
- Retinal Diseases and Treatments
- Geophysical and Geoelectrical Methods
- Soil Moisture and Remote Sensing
- Geophysical Methods and Applications
- Corneal surgery and disorders
- Retinal and Optic Conditions
- Soil erosion and sediment transport
- Intraocular Surgery and Lenses
- Retinal and Macular Surgery
- Retinal Imaging and Analysis
- Crop Yield and Soil Fertility
- Ocular Infections and Treatments
- Neuroscience and Neural Engineering
- Landslides and related hazards
- Retinal Development and Disorders
- Seed Germination and Physiology
- Agricultural Engineering and Mechanization
- Optical Coherence Tomography Applications
- French Urban and Social Studies
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2008-2024
University of New Hampshire
2024
Centre d'Etudes Prospectives et d'Informations Internationales
1999-2024
Centre Hospitalier Universitaire de Montpellier
2020
Département Environnement et Agronomie
2010-2019
Soil Science Research Unit
2006-2018
Centre Val de Loire
2011-2016
Klinik und Poliklinik für Augenheilkunde Universitätsklinikum Regensburg
2004-2015
University Medical Center Hamburg-Eppendorf
2005-2015
Universität Hamburg
2005-2015
Summary Tillage and traffic modify soil porosity pore size distribution, leading to changes in the unsaturated hydraulic properties of tilled layer. These are still difficult characterize. We have investigated effect compaction on change its consequences for water retention conductivity. A freshly layer a compacted by wheel tracks were created silty obtain contrasting bulk densities (1.17 1.63 g cm −3 , respectively). Soil was analysed mercury porosimetry, scanning electron microscopy used...
The sustainability of agro-ecosystems depends on their ability to deliver an entire package multiple ecosystem services, rather than provisioning services alone. New social and ecological dimensions agricultural management must be explored in landscapes, foster this ability. We propose a social–ecological framework for the service-based agro-ecosystems, specified through explicit symmetric representation system, dynamic links between them. It highlights how practices, with effects, could...
We performed a quantitative and qualitative analysis of the scientific literature on ecosystem services in order to help tracing research agenda for agricultural sciences. The concept now lies at heart current developments address global environmental change. Do sciences generate knowledge that covers this emerging theme? An production allowed us return ecological origins see how little it has been appropriated by until now, despite major focus issue agro-ecosystems literature. Agricultural...
Summary Understanding the role of soil matrix in decomposition organic matter requires an assessment how controls availability substrate to microorganisms. We aimed identify sites microbial assimilation a decomposing initial location which was known. incubated wheat straw doubly labelled with 13 C and 15 N as single layer middle core we separated, after different times incubation, layers situated at distances from straw. analysed them for their contents dehydrogenase activity. The presence...
Among the geophysical tools used in soil science, electrical methods are considered as potentially useful to characterize compaction intensity. A laboratory investigation was undertaken on agricultural and forest soils order study impact of bulk resistivity. Samples taken from four different types loamy were compacted at three densities (1.1, 1.3 1.6 g cm −3 ). Bulk resistivity measured each state for gravimetric water contents ranging 0.10 0.50 −1 . specific experimental procedure allowed...
Pesticides pose serious threats to both human health and the environment. In Europe, farmers are encouraged reduce their use in France a recent environmental policy fixed target of halving pesticide by 2018. Organic integrated cropping systems have been proposed as possible solutions for reducing use, but effect on crop yield remains unclear. Here we set system experiments quantify losses resulting from reduction winter wheat France. Our estimated 50% ranged 5 13% obtained with current use....
Electrical resistivity measurements at high resolution (1.5‐cm electrode spacing) were performed to detect, from the soil surface, small cracks developing within soil. We recorded a vertical electrical pseudo‐section in decimetric undisturbed homogenous block (silt loam) for different artificial cracking stages. Because of unusually reduced spacing associated with an air‐dried specific Cu/CuSO 4 was designed precision wet contact given points. The apparent and interpreted data inverted by...