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This website is dedicated to the hosting of geographic information about the forest areas of Mexico.


Assessment of forest fragmentation using the Riiters et al (2000) method for INEGI's Series II (1993), Series III (2003) and Series IV (2008).

    a) KMZ layers for display in Google Earth.  Download them here.

·      It requires having the free version of Google Earth (GE) installed on your local computer.

·      You can download and install GE in about 5 min. Click here to download GE.

 

    b) ArcGIS rasters and/or shapefiles.  Download them here.

 

MAP LEGEND


In the ArcGIS rasters Patch = Cell Value 3; Transitional = Cell Value 4;

Edge = Cell Value 5; Perforated = Cell Value 6; Interior = Cell Value 7

 

 

METHODS: The methods followed to create these forest fragmentation classifications are explained in detail in the following articles:

 

Riitters, K.H., Wickham, J., O’Neill, R., Jones, B. & Smith, E. (2000) Global-Scale patterns of forest fragmentation. Conservation Ecology 4: 3. [WWW document] URL http://www.ecologyandsociety.org/vol4/iss2/art3/

Moreno-Sanchez, R., J.M. Torres-Rojo, F. Moreno-Sanchez, S. Hawkins, J. Little, S., MacPartland. (2012)  National assessment of the fragmentation, accessibility and anthropogenic pressure on the forests in Mexico.  Journal of Forestry Research 23(4): 529-541. Click here to download it.

 

 

Forest cover change between Series II (1993) and Series IV (2008).

       KMZ layers for display in Google Earth. Download them here.

·      It requires having the free version of Google Earth (GE) installed on your local computer.

·      You can download and install GE in about 5 min. Click here to download GE.

 

        ArcGIS rasters and/or shapefiles. Download them here.

 

These layers show temperate or tropical forest areas that were reported in Series II (1993) but that are not reported any more as forest areas in Series IV (2008).

 

METHODS: The methods followed to create this 1993-2008 forest cover difference are explained in detail in the following article:

 

Moreno et al (2014) Upcoming. Click here.

 

 

Estimation of effective accessibility to forest areas from anthropogenic land uses, highways and population centers.

KMZ layers for display in Google Earth. Download them here.

·      It requires having the free version of Google Earth (GE) installed on your local computer.

·      You can download and install GE in about 5 min . Click here to download GE.


ArcGIS rasters and/or shapefiles. Download them here.


KML LAYER LEGEND 

                          


 

ArcGIS Shapefile table of attributes


In the shapefile of this layer the field GRIDCODE is the effective accessibility in hours from anthropogenic land uses, highways and population centers. The country is classified into 1 to 10 hours away and more than 10 hours away (GRIDCODE = 99).  GRIDCODE = 1 means one hour away from anthropogenic influences; GRIDCODE = 2 means 2 hours away, and so on. GRIDCODE = 99 means more than 10 hours away.  

 

 

METHODS: The methods followed to create this effective accessibility layer are explained in detailed in the following article:

 

Moreno-Sanchez, R., J.M. Torres-Rojo, F. Moreno-Sanchez, S. Hawkins, J. Little, S.

MacPartland. (2012)  National assessment of the fragmentation, accessibility and anthropogenic pressure on the forests in Mexico.  Journal of Forestry Research 23(4): 529-541. Click here to download it.