0187-5779 0187-5779 S0187-57792020000400569 10.28940/terra.v38i3.649 Mexico Mexico Mexico Mexico 00 09 2020 00 09 2020 38 3 569 581

2017 4 4 475-83 2012 2001 4 4 343-50 2016 34 34 271-88 2003 43 43 1121-2 1987 2015 2004 38 38 625-33 2018 9 9 281-9 2013 8 8 1-19 1976 2004 304 304 1623-7 2017 40 40 73-81 2013 1999 19 19 67-74 SEMARNAT (Secretaría del Medio Ambiente y Recursos Naturales) 2003 1996 2007 2013 113-9 2015