Survival rates and characteristics of spreads in two years stumps of crops with dendroenergy potential
Por:
Cesar Rios-Saucedo, Julio, Acuna-Carmona, Eduardo, Manuel Valenzuela-Nunez, Luis, Cancino-Cancino, Jorge, Javier Corral-Rivas, Jose, Rosales-Serna, Rigoberto
Publicada:
1 jul 2019
Resumen:
Several species of the genera Eucalyptus and Acacia are suitable for
biomass production useful in energy generation. The objective of this
research was to evaluate the survival and cha-of four dendroenergetic
species in three population densities. A randomized block design with
three replications was used in three sites (Collipulli, La Aguada and
Pilpilco Abajo plots) with contrasting edaphoclimatic characteristics.
Eucalyptus globulus, Eucalyptus denticulata, Eucalyptus nitens and
Acacia dealbata were studied in three plantation densities (5 000
trees/ha, 10 000 trees/ha and 15 000 trees/ha). The survival percentage
and characteristics of stump regrowth characteristics of each stump were
evaluated. The variables specie, plantation density and planting site
affected the analyzed parameters. Plantation density affected the
diameter and height of prevalent sprouts of proventic proventitious
shoots in all species. Hihest stump survival rate (97 %) was presented
by Eucalyptus nitens in Pipilco Abajo, with 79 % shoots survival of
sprouts at a density of 5 000 trees/ha. However, at densities of 15 000
trees/ha, regrowth survival was 29%. The Acacia dealbata is a species
characterized by its colonization capacity. However, at La Aguada, which
had population densities of 5 000 trees/ha and 10 000 trees/ha, it
showed a low stump (19% and 18 % respectively) and shoots (57 % and
63 % respectively) survival rate. The species Eucalyptus globulus
showed high stump and shoot survival rates in all sites evaluated,
therefore it can be considered a good option to optimize the scrub
system.
Filiaciones:
INIFAP, Mexico City, DF, Mexico
Univ Concepcion, Fac Ciencias Forestales, Concepcion, Chile
Univ Juarez Estado Durango, Fac Ciencias Biol, Av Univ S-N Fracc Filadelfia, Gomez Palacio 35010, Durango, Mexico
Inst Silviculture & Ind Madera, Ciudad Univ, Mexico City, DF, Mexico
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