1405-2768 1405-2768 S1405-27682016000200043 10.18387/polibotanica.42.3 Mexico Mexico 00 08 2016 00 08 2016 42 43 89

1990 11 23-47 1852 1976 35-41 1992 7-8 1974 29 29 1947 12 12 1991 26-36 ESRI (Enviromental Systems Research Institute) 1994 3.3 FAO UNESCO 1974 2004 5 90 1987 1998 102 GEM 2009 1975 21 1 1 1-144 IGECEM 2000 INEGI 1975 INEGI 2001 2015 1981 11 21-54 1988 1979 1969 30 137-42 1994 2015 1989 Toluca, México 2002 89 551-93 2000 11 121-7 2006 76 1-45 2009 187-93 1978 1951 22 2 2 434-87 2011 2 8 8 71-83 1985 2015