Changes in drainage networks since 1820, Southern Tablelands, N.S.W.

摘要: Summary During the well‐documented period of exploration and initial settlement Southern Tablelands, many drainage lines contained chains ponds. Cultural influences, particularly ringbarking trees grazing sheep, cattle rabbits between 1840 1950, caused ponds to be destroyed by channel entrenchment. Changes since 1820 have followed sequence: chain ‘scour’ ponds, discontinuous gully, continuously incised channel, containing ‘fixed bar’ permanently flowing stream. Since improvements in farm management practices application soil conservation methods certain catchments further increased diversity fluvial forms. are illustrated evidence from early survey plans, aerial photographs fieldwork.