00832nam a2200169 a 450000100080000000500110000800800410001910000150006024500230007526000380009830000100013652004640014665300180061065300130062865300120064165300090065310061662015-04-08       1971    bl uuuu      00u1 u    #d1 aHUDSON, N.  aSoil conservation.  aIthaca : Cornell Universityc1971  a320p.  aMan and soil erosion; The mechanics of erosion; The physics of rainfall; The erosivity of rainfall; The erodibility of soil; The principles of mechanical protection; The estimation of surface run-off; The design of mechanical protection works; Land management; Control of werosion by crop management; Gully erosion; Erosion control on non-arable land; Wind erosion and its control; Erosion research methods; Pollution and soil erosion; Appendix 1, 2; indexes.  aConservação  aControle  aErosão  aSolo