TY - BOOK AU - Blanco, Humberto AU - Lal, Rattan TI - Principles of soil conservation and management SN - 9781402087080 U1 - 631.45 BLA L PY - 2010/// CY - New York PB - Springer KW - Ecology KW - Ecosystem KW - Cropping systems KW - Tillage erosion KW - Water--Wind erosion KW - Soil--Water conservation KW - Geology ER -