fields subsoil erosion damage hole pit soil inappropriately managed earth land degradation field. intensive agriculture damages

fields subsoil erosion damage soil inappropriately hole managed pit earth land degradation field intensive agriculture damages tractor track vadose zone compacted top bottom hard drought dry ground topsoil arable sediment trace poor farming trees draws loss agricultural colliery landscape flow nature water washing ecology ecologycal catastrophe disaster pocket europe field land soil draws original terrain regime washing high voltage