Development of the Edge of the Gully in the Zone Adjacent to the Field

Abstract

The development of the side arm edge of the valley-gully in Gałkowice village in the Dwikozy commune (the Opatówka catchment in the Sandomierz Upland) was investigated during the period from 2002 to 2017. An increase of fragmentation of the gully edge was found. Most of the pre-existing erosive indents increased in size (maximum of 2.8 m-about 0.2 m per year). An increase in the area of the gully by 145 m 2 was found. As a result, the boundary of plow tillage shifted to an average of 1.5 to 2 meters (maximum 3.8 m), which resulted in a loss of 545 m 2 of adjacent arable land. As the main reason for the development of the analyzed section of the gully, meltwater flows were considered.