GULLY PLUGGING SPILLWAY IS AN EFFECTIVE GULLY REHABILITATION MEASURE: A CASE STUDY OF DISTRICT GUJRAT-PAKISTAN

Gully Erosion after Wildfire

Predicting runoff and erosion from watersheds burned by wildfires requires an understanding of the spatial structure of both hillslope and channel drainage networks. We investigate the small-scale and large-scale structures of drainage networks using field studies and computer analysis of 30-m digital elevation model. Topologic variables were derived from a composite 30-m DEM, which included 14...

Gully Formation on Mars and Earth: the Transition from Glacial Activity to Gully Depositional Phases

Introduction: The discovery of gullies on Mars [1,2] resulted in a wide variety of proposed candidate mechanisms for formation but ensuing analyses have shown very strong latitude and orientation dependencies on their distributions [3-6]. These constraints have been interpreted to require: 1) a volatile on or near the surface as a source of liquid water, and 2) insolation and slope orientation ...

Late-stage Gully Modification on Mars: Polygonally-patterned Ground, Permafrost, and Gully Water Sources

Urban Gully Development in Southwestern Nigeria

This study examined the development of urban gullies in a part of Southwestern Nigeria. This was done with a view to determine the volume and amount of sediment loss from the 1 and 2 order gullies in a cascade system. Twenty (20) towns were randomly selected from where thirty (30) gully systems comprising forty (40) 1 order and five (5) 2 order gullies were measured with Tape and Total Station ...

determining of effective factors on gully longitudinal advancement (case study: dareh koreh watershed)

gully erosion is one of the most destructive types of channeled water erosion that removes aconsiderable volume of soil as it develops. this type of erosion consists of complex a geomorphicprocess that has been known as an indicator of accelerated soil erosion. in this research theadvancement of 25 headcuts were assessed through digital interpretation of multi-temporal aerialphotos, field obser...