The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper gives a brief synthesis of the information obtainable from remote-sensing data and how it can be related to two significant functions of catchment hydrology, namely, the processes of production and transfer. After presenting examples of the type of information that can be derived from remote sensing (characterisation of soil surface by different wavelengths, temporal changes of surface...
Extensive soil surface observations and measurements were conducted in Normandy on loess soils prone to surface crusting in order to understand the spatial distribution and temporal variability of soil surface characteristics involved in erosion processes. A database composed of more than 5000 soil surface observations at the field or plot scale was analysed. We classified these observations according...
Water erosion of cropland constitutes an issue for natural environments along runoff flowpaths due to property damage by soil-laden water and the associated transfer of nutrients and pesticides. In the Pays de Caux region of northwestern France, the silty soils with crusting properties induce a high risk of runoff and erosion. Changes in agricultural practices, land use and landscape patterns appear...
Over the last 30 years, European agricultural policy has influenced agricultural practices. These have led to an increase in numerous environmental issues such as the erosion and runoff risk, which have reached an alarming level in loamy soils of Upper Normandy. To control runoff and erosion at catchment scale, public authorities need tools in order to obtain a better knowledge of present or future...
Global climate has changed over the past century. Precipitation amounts and intensities are increasing. In this study we investigated the response of seven soil erosion models to a few basic precipitation and vegetation related parameters using common data from one humid and one semi-arid watershed. Perturbations were made to inputs for rainfall intensities and amounts, and to ground surface cover...
Recent experience in distributed modelling has revealed that the performance of process-based erosion and hydrological models are extremely sensitive to parameter estimations and that predictions are often poor. It is also observed that quite different parameter sets may lead to very similar results and that no ‘best’ parameter set can be identified. In this study, we describe a dataset that offers...
This paper describes a new erosion model to predict the location and volume of ephemeral gullies within the main runoff collector network of agricultural catchments. This model, using an expert-based approach, combines field experiment results and knowledge about erosion processes and agricultural practices. It takes into account slope gradient, parameters reducing runoff flow velocity or increasing...
In European loess belt soils, infiltration and erosion processes are strongly influenced by surface crusting. Modelling infiltration into these crusts has led to the development of equations of varying complexity, ranging from simple empirical equations to numerical solution of the Richard's equation. However, a number of issues important for modelling effective erosion at the catchment scale remain...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.