Ecological impact of reforestation with the shrub species Atriplex canescens (Pursh) Nutt. in a desert microphile scrub

Abstract

Present work shows the results obtained  from an screening on a revegetated area of ​​desert scrub in the Chihuahua Desert, to know the structure and composition of the shrub community to identify changes 10 years after revegetation with Atriplex canescens (Costilla de Vaca), on shallow and deep soils, evaluating:  1) Species Diversity (DE); 2) Value of importance of the species (IVI); Relative Abundance (Ar), Relative Dominance (Dr) and, Relative Frequency (Fr). The practice was applied on thinning with level curves using a randomized block design with 5 repetitions with 50m² transects. Subsequently, it was determined that there is a decrease in Species Diversity (DE) of 20.44 in shallow soil and 12.21 in deep soil, compared to control groups. For Value of Importance (IVI), they stand out in shallow soil Parthenium incanum and Atriplex canescens with 99.23 and 45.57, respectively, and in deep soil P. incanum and A. constricta with 98.53 and 46.21, respectively. A significant difference (P≤0.05) was observed in response to type of soil. In conclusion, Atriplex canescens shows an interesting Important Value (IVI), which determines its viability of their application in ecosystems with similar characteristics.