9POINTEREAU P, (X)ULON F, GIRARD P, et 81. Analysis of Farmland Abandonment and the Extent and Location of Agricultural Areas that are Actually Abandoned or are in Risk to be Abandoned [R]. European Commission Joint Researeh Centre, 2008.
10BAUMANN M, KUEMMERLE T, ELBAKIDZE M, et al. Pat- terns and drivers of post-socialist farmland abandonment in Western Ukraine[J]. Land use Policy,2011(28):552-562.