HAL (Le Centre pour la Communication Scientifique Directe), Mar 16, 2015
National audienceSoil erosion in farmlands is a major cause of water quality degradation and redu... more National audienceSoil erosion in farmlands is a major cause of water quality degradation and reduced crops production potential throughout the European countries. In agroforests, if the role of tree lines as physical barriers to runoffs is easily understanding, processes involving rooting systems and soil erodilbility are still unknown. Objectives-Do the presence of a tree line improve soil aggregate stability
Context Farmland on steep slopes is increasingly abandoned because it is unsuitable for most form... more Context Farmland on steep slopes is increasingly abandoned because it is unsuitable for most forms of modern agriculture. Succession back to forest is often slow or inexistent due to over-exploitation. Observations and measurements in Dong Cao catchment 47.9 ha Vietnam, started under farming and continued after abandonment: 20 years of uninterrupted monitoring of soil, water, land use and vegetation were integrated in this study.Objective Our aim is to identify the specific combination of soil features and agricultural practices that are responsible for fast, slow or blocked succession. We differentiate between the recovery of forest structure, relatively easy, and recovery of the original species composition, more difficult.Methods Multivariate analysis of vegetation data produced plant communities in a gradient of complexity. Using classic statistics, we sought relationships between environmental variables, land use and vegetation.Results Forest recovery failed the first 10 years,...
An account is given on: root growth and root system architecture (components and developmental pr... more An account is given on: root growth and root system architecture (components and developmental processes, root growth, tropisms and hormonal control); interactions between plant roots and the soil environment (root growth in response to soil environmental conditions, and effect of root growth and development on soil properties); and the importance of plant roots at the community scale (interactions between roots and root systems in multi-species systems, agronomic implications of multi-specific systems, and impact of root communities on climate).
HAL (Le Centre pour la Communication Scientifique Directe), Oct 26, 2012
Fine deep roots are organs of foremost functional importance and bring about evidence that teak t... more Fine deep roots are organs of foremost functional importance and bring about evidence that teak tree extracts deep water during critically dry periods. The presence of measurable amounts of deep fine roots should be taken into account when quantifying long-term carbon storage.
HAL (Le Centre pour la Communication Scientifique Directe), Mar 16, 2015
National audienceSoil erosion in farmlands is a major cause of water quality degradation and redu... more National audienceSoil erosion in farmlands is a major cause of water quality degradation and reduced crops production potential throughout the European countries. In agroforests, if the role of tree lines as physical barriers to runoffs is easily understanding, processes involving rooting systems and soil erodilbility are still unknown. Objectives-Do the presence of a tree line improve soil aggregate stability
Context Farmland on steep slopes is increasingly abandoned because it is unsuitable for most form... more Context Farmland on steep slopes is increasingly abandoned because it is unsuitable for most forms of modern agriculture. Succession back to forest is often slow or inexistent due to over-exploitation. Observations and measurements in Dong Cao catchment 47.9 ha Vietnam, started under farming and continued after abandonment: 20 years of uninterrupted monitoring of soil, water, land use and vegetation were integrated in this study.Objective Our aim is to identify the specific combination of soil features and agricultural practices that are responsible for fast, slow or blocked succession. We differentiate between the recovery of forest structure, relatively easy, and recovery of the original species composition, more difficult.Methods Multivariate analysis of vegetation data produced plant communities in a gradient of complexity. Using classic statistics, we sought relationships between environmental variables, land use and vegetation.Results Forest recovery failed the first 10 years,...
An account is given on: root growth and root system architecture (components and developmental pr... more An account is given on: root growth and root system architecture (components and developmental processes, root growth, tropisms and hormonal control); interactions between plant roots and the soil environment (root growth in response to soil environmental conditions, and effect of root growth and development on soil properties); and the importance of plant roots at the community scale (interactions between roots and root systems in multi-species systems, agronomic implications of multi-specific systems, and impact of root communities on climate).
HAL (Le Centre pour la Communication Scientifique Directe), Oct 26, 2012
Fine deep roots are organs of foremost functional importance and bring about evidence that teak t... more Fine deep roots are organs of foremost functional importance and bring about evidence that teak tree extracts deep water during critically dry periods. The presence of measurable amounts of deep fine roots should be taken into account when quantifying long-term carbon storage.
Uploads
Papers by Jean-luc Maeght