Anne C. Richer-de-Forges | National Institute of Agricultural Research (INRA) (original) (raw)
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Papers by Anne C. Richer-de-Forges
HAL (Le Centre pour la Communication Scientifique Directe), 2016
HAL (Le Centre pour la Communication Scientifique Directe), Jan 27, 2013
HAL (Le Centre pour la Communication Scientifique Directe), 2008
HAL (Le Centre pour la Communication Scientifique Directe), 2014
French soil mapping and inventory programme : regional Soil referential This paper aims, about te... more French soil mapping and inventory programme : regional Soil referential This paper aims, about ten years after the establishment of GIS Sol, to draw a state of the art on the progress of R.R.P. component of the French Soil mapping and inventory programme (IGCS). This programmes initiated in the beginning of the 90's aims to produce a soil map at 1/250 000 scale in France. Although the beginnings were difficult, membership in different regions has been gradual, and there are now only a few departments that are not yet involved. In this paper, we describe and analyze trends in collection framework, partnership, acquisition and check of data, and the use that is made from the maps. These different elements are finally used to identify some prospects for the programme.
International journal of applied earth observation and geoinformation, Oct 1, 2019
Soil clay content is a key parameter that influences many other soil properties and processes. Th... more Soil clay content is a key parameter that influences many other soil properties and processes. The potential of adding new and contemporary satellite data for soil property mapping in France is assessed in this study. The soil property maps used for this analysis were produced within the framework of GlobalSoilMap, which was created to deliver global fine grids of soil properties and associated uncertainties using existing soil information and ancillary data to predict these properties based on digital soil mapping techniques. In this study, we evaluate the added value of Moderate Resolution Imaging Spectroradiometer (MODIS), Project for On-Board Autonomy-Vegetation (PROBA-V), and Sentinel-2 (S2) data for predicting the soil clay content at 90 m resolution for mainland France. The rationale behind adding these data is that satellite images and derived products may enable the biogeochemical characteristics of the earth's surface to be captured more effectively, which in turn enables more precise predictions of the soil clay content. For this methodology, we i) create composite bare soil mosaics and derive the spectral indices from S2 data acquired during sowing periods from 2016 to 2017, ii) extract the first three principal components of harmonized MODIS and PROBA-V normalized difference vegetation index (NDVI) time series acquired in 2003 and 2016 to represent vegetation changes, and iii) test whether the complementary datasets are able to improve the soil clay information compared to a benchmark value. The soil clay content is obtained by using quantile regression forest (QRF) for each GlobalSoilMap depth interval of 0-5 cm, 5-15 cm, 15-30 cm, 30-60 cm, 60-100 cm, and 100-200 cm along with a 10-fold cross-validation having 10 replicates. The results show that the complementary satellite data improve the clay content estimation on bare soil for the topsoil layers (e.g., 0-30 cm) by increasing the R² and decreasing the bias at averages of 0.05 and 1 g kg −1 , respectively. Moreover, the first principal component of the harmonized NDVI data is shown to be the second most important variable for estimating the clay content, as indicated by the QRF models. However, the use of only the satellite data and products as input for the QRF does not yield a satisfactory estimate of the clay content. Finally, this work provides a reference for embedding new remote sensing data in existing national soil inventories and national soil information systems. Further research should incorporate new techniques for considering the spatial-temporal variability of the earth's surface parameters such as soil moisture and roughness.
HAL (Le Centre pour la Communication Scientifique Directe), Jun 30, 2014
HAL (Le Centre pour la Communication Scientifique Directe), 2010
HAL (Le Centre pour la Communication Scientifique Directe), Jun 30, 2014
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires
HAL (Le Centre pour la Communication Scientifique Directe), 2018
HAL (Le Centre pour la Communication Scientifique Directe), Oct 7, 2013
HAL (Le Centre pour la Communication Scientifique Directe), Jul 9, 2018
HAL (Le Centre pour la Communication Scientifique Directe), Dec 4, 2018
International audienc
HAL (Le Centre pour la Communication Scientifique Directe), Mar 12, 2019
International audienc
HAL (Le Centre pour la Communication Scientifique Directe), 2018
HAL (Le Centre pour la Communication Scientifique Directe), Nov 15, 2022
Les sols sont au carrefour d'enjeux planétaires majeurs. L'importance d'une gestion raisonnée et ... more Les sols sont au carrefour d'enjeux planétaires majeurs. L'importance d'une gestion raisonnée et durable des sols est ainsi de plus en plus reconnue au niveau mondial. Il en est logiquement de même en ce qui concerne la nécessité de constituer des systèmes d'information harmonisés, locaux, nationaux, continentaux et mondiaux sur les sols et leurs propriétés. Dans cet article, nous décrivons les évolutions internationales pour lesquelles nous considérons que le GIS Sol a joué un rôle important, tant pour le développement de produits de démonstration, qu'en matière de collaboration, d'initiation, de formation, ou de coordination d'actions internationales. Dans cet article, nous illustrons tout d'abord comment les actions du GIS Sol et de ses partenaires ont contribué au développement de systèmes d'information et au soutien à des infrastructures étrangères, européennes ou mondiales. Nous montrons ensuite ses actions les plus marquantes en matière de développement et de structuration de la recherche et du renforcement du leadership scientifique de la France en bases de données, cartographie et
HAL (Le Centre pour la Communication Scientifique Directe), Aug 1, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Nov 26, 2019
HAL (Le Centre pour la Communication Scientifique Directe), Dec 6, 2005
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.
HAL (Le Centre pour la Communication Scientifique Directe), Nov 20, 2006
HAL (Le Centre pour la Communication Scientifique Directe), 2016
HAL (Le Centre pour la Communication Scientifique Directe), Jan 27, 2013
HAL (Le Centre pour la Communication Scientifique Directe), 2008
HAL (Le Centre pour la Communication Scientifique Directe), 2014
French soil mapping and inventory programme : regional Soil referential This paper aims, about te... more French soil mapping and inventory programme : regional Soil referential This paper aims, about ten years after the establishment of GIS Sol, to draw a state of the art on the progress of R.R.P. component of the French Soil mapping and inventory programme (IGCS). This programmes initiated in the beginning of the 90's aims to produce a soil map at 1/250 000 scale in France. Although the beginnings were difficult, membership in different regions has been gradual, and there are now only a few departments that are not yet involved. In this paper, we describe and analyze trends in collection framework, partnership, acquisition and check of data, and the use that is made from the maps. These different elements are finally used to identify some prospects for the programme.
International journal of applied earth observation and geoinformation, Oct 1, 2019
Soil clay content is a key parameter that influences many other soil properties and processes. Th... more Soil clay content is a key parameter that influences many other soil properties and processes. The potential of adding new and contemporary satellite data for soil property mapping in France is assessed in this study. The soil property maps used for this analysis were produced within the framework of GlobalSoilMap, which was created to deliver global fine grids of soil properties and associated uncertainties using existing soil information and ancillary data to predict these properties based on digital soil mapping techniques. In this study, we evaluate the added value of Moderate Resolution Imaging Spectroradiometer (MODIS), Project for On-Board Autonomy-Vegetation (PROBA-V), and Sentinel-2 (S2) data for predicting the soil clay content at 90 m resolution for mainland France. The rationale behind adding these data is that satellite images and derived products may enable the biogeochemical characteristics of the earth's surface to be captured more effectively, which in turn enables more precise predictions of the soil clay content. For this methodology, we i) create composite bare soil mosaics and derive the spectral indices from S2 data acquired during sowing periods from 2016 to 2017, ii) extract the first three principal components of harmonized MODIS and PROBA-V normalized difference vegetation index (NDVI) time series acquired in 2003 and 2016 to represent vegetation changes, and iii) test whether the complementary datasets are able to improve the soil clay information compared to a benchmark value. The soil clay content is obtained by using quantile regression forest (QRF) for each GlobalSoilMap depth interval of 0-5 cm, 5-15 cm, 15-30 cm, 30-60 cm, 60-100 cm, and 100-200 cm along with a 10-fold cross-validation having 10 replicates. The results show that the complementary satellite data improve the clay content estimation on bare soil for the topsoil layers (e.g., 0-30 cm) by increasing the R² and decreasing the bias at averages of 0.05 and 1 g kg −1 , respectively. Moreover, the first principal component of the harmonized NDVI data is shown to be the second most important variable for estimating the clay content, as indicated by the QRF models. However, the use of only the satellite data and products as input for the QRF does not yield a satisfactory estimate of the clay content. Finally, this work provides a reference for embedding new remote sensing data in existing national soil inventories and national soil information systems. Further research should incorporate new techniques for considering the spatial-temporal variability of the earth's surface parameters such as soil moisture and roughness.
HAL (Le Centre pour la Communication Scientifique Directe), Jun 30, 2014
HAL (Le Centre pour la Communication Scientifique Directe), 2010
HAL (Le Centre pour la Communication Scientifique Directe), Jun 30, 2014
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires
HAL (Le Centre pour la Communication Scientifique Directe), 2018
HAL (Le Centre pour la Communication Scientifique Directe), Oct 7, 2013
HAL (Le Centre pour la Communication Scientifique Directe), Jul 9, 2018
HAL (Le Centre pour la Communication Scientifique Directe), Dec 4, 2018
International audienc
HAL (Le Centre pour la Communication Scientifique Directe), Mar 12, 2019
International audienc
HAL (Le Centre pour la Communication Scientifique Directe), 2018
HAL (Le Centre pour la Communication Scientifique Directe), Nov 15, 2022
Les sols sont au carrefour d'enjeux planétaires majeurs. L'importance d'une gestion raisonnée et ... more Les sols sont au carrefour d'enjeux planétaires majeurs. L'importance d'une gestion raisonnée et durable des sols est ainsi de plus en plus reconnue au niveau mondial. Il en est logiquement de même en ce qui concerne la nécessité de constituer des systèmes d'information harmonisés, locaux, nationaux, continentaux et mondiaux sur les sols et leurs propriétés. Dans cet article, nous décrivons les évolutions internationales pour lesquelles nous considérons que le GIS Sol a joué un rôle important, tant pour le développement de produits de démonstration, qu'en matière de collaboration, d'initiation, de formation, ou de coordination d'actions internationales. Dans cet article, nous illustrons tout d'abord comment les actions du GIS Sol et de ses partenaires ont contribué au développement de systèmes d'information et au soutien à des infrastructures étrangères, européennes ou mondiales. Nous montrons ensuite ses actions les plus marquantes en matière de développement et de structuration de la recherche et du renforcement du leadership scientifique de la France en bases de données, cartographie et
HAL (Le Centre pour la Communication Scientifique Directe), Aug 1, 2010
HAL (Le Centre pour la Communication Scientifique Directe), Nov 26, 2019
HAL (Le Centre pour la Communication Scientifique Directe), Dec 6, 2005
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.
HAL (Le Centre pour la Communication Scientifique Directe), Nov 20, 2006