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Deriving Ephemeral Gullies From VHR Image in Loess Hilly Areas Through Directional Edge Detection
ISPRS International Journal of Geo-Information, 2017 Monitoring ephemeral gullies facilitates water planning and soil conservation. Artificial interpretation based on high spatial resolution images is the main method for monitoring ephemeral gullies in large areas; however, this method is time consuming ...
Wen Dai, Guoan Tang, Xin Yang
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Measurement of Ephemeral Gully Erosion
Transactions of the ASAE, 1988ABSTRACT THE Universal Soil Loss Equation often under-estimates erosion on agricultural fields because it does not account for the loss of soil from ephemeral gullies. However, the development of appropriate predictive methodology along with the understanding of the erosional processes are limited by the difficulty of acquiring adequate data on ...
null A. W. Thomas, null R. Welch
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2023
ephemeral gully erosion is a primary mode of soil erosion that is highly visible, affecting soil productivity and restricting land use. Watershed is the basic unit of soil erosion control; existing research has focused on several typical ephemeral gullies or slopes, which do not fully display changes in ephemeral gullies at a watershed scale.
Boyang Liu +6 more
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ephemeral gully erosion is a primary mode of soil erosion that is highly visible, affecting soil productivity and restricting land use. Watershed is the basic unit of soil erosion control; existing research has focused on several typical ephemeral gullies or slopes, which do not fully display changes in ephemeral gullies at a watershed scale.
Boyang Liu +6 more
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Tools for Ephemeral Gully Erosion Research
International Symposium on Erosion and Landscape Evolution (ISELE), 18-21 September 2011, Anchorage, Alaska, 2011Techniques to quantify ephemeral gully erosion have been identified by USDA Natural Resources Conservation Service (NRCS) as one of the gaps in current erosion assessment tools. One reason that may have contributed to this technology gap is the difficulty to quantify changes in channel geometry to assess the amount of erosion from the gully channels ...
null S Kossi Nouwakpo +1 more
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Ephemeral gully erosion in northwestern Spain
CATENA, 2003This study aimed to describe types of ephemeral gullies and to determine their origin, evolution and importance as sediment sources in A Coruna province (northwest Spain). Ephemeral gullies and/or rills have been measured in a representative sample of medium-textured soils, most prone to crusting, developed over basic schist.
M Valcárcel +3 more
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Simulating Ephemeral Gully Erosion in AnnAGNPS
Transactions of the ASABE, 2007Ephemeral gully erosion can cause severe soil degradation and contribute significantly to total soil losses in agricultural areas. Physically based prediction technology is necessary to assess the magnitude of these phenomena so that appropriate conservation measures can be implemented, but such technology currently does not exist.
null L. M. Gordon +4 more
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A comprehensive review of ephemeral gully erosion models
CATENA, 2020Abstract Modeling of ephemeral gully (EG) erosion has lagged that of other soil erosion processes despite its major contribution to watershed sediment losses. Several process and semi-empirical based simulation models have been used to assess the occurrence and location of EGs, magnitude of soil losses from EGs, and degradation, aggradation, and ...
Kyle R. Douglas-Mankin +8 more
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Modelling ephemeral gully erosion in small cultivated catchments
CATENA, 2003This 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.
Souchère, Véronique +5 more
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Annual variation of ephemeral gully erosion in a cultivated catchment
Geoderma, 2021Abstract Ephemeral gullies (EG) are important erosion features that reduce land productivity and have potential to produce copious amounts of erosion and sediment from fields. Unchecked, they may also develop into classical gullies and damage the land permanently.
Jie Tang +5 more
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Zeitschrift für Geomorphologie, Supplementary Issues, 2012
applied to document the contribution of rill-interrill erosion over the same area. Ephemeral gully formation occurred seven hydrologic years out of ten, with a frequency corresponding to 70 % of the years covered occurred seven hydrologic years out of ten, with a frequency corresponding to 70 % of the years covered by the survey and to a return period ...
A. Capra +3 more
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applied to document the contribution of rill-interrill erosion over the same area. Ephemeral gully formation occurred seven hydrologic years out of ten, with a frequency corresponding to 70 % of the years covered occurred seven hydrologic years out of ten, with a frequency corresponding to 70 % of the years covered by the survey and to a return period ...
A. Capra +3 more
openaire +1 more source