| Summary: | Carbon content of aboveground biomass of six types of vegetation cover in the Magdalena Riverbasin, located in the conservation land in the Mexico City, was estimated. Hence, a map of cover vegetationand land use to the study area was made; a hierarchical stratified sampling design with distributionsystematic with a mesh of sampling sites equidistant of 550 meters was used for field work. Themethod used for field data collection was based on a nested design, with an intensity of sample of0,64%. There were generated 52 sites of 3000 m2. The vegetation cover that showed the highestamount of carbon stored corresponds to the forest of the the Abies religiosa closed with 163 Mg C ha-1in average; followed by the Abies religiosa - Pinus hartwegii closed with 107 Mg C ha-1, and Abies religiosaopened with 95 Mg C ha-1; about the covers of Pinus sp., Pinus hartwegii closed with 47 Mg C ha-1;Pinus hartwegii - Abies religiosa closed with 39 Mg C ha-1 and Pinus hartwegii opened with21 Mg C ha-1.
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