Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Tree cover in a silvopastoral system in the Chaco region and its contribution to soil
Year:2015
Research Areas
  • Forest
Information
Abstract
In the Chaco region, the technology called low intensity roller chopping (RBI) and planting of Panicum maximum allows control of woody species and increase forage production. It is unclear the effects of these practices on soil features. The objective of this work was to evaluate the impact of the conversion of native forest to silvpastoral systems on soil carbon fractions, soil nitrogen, and soil respiration. Treatments were native forest considered as control (T); (RBI) silvopastoral system with low intensity roller chopping and planting of Panicum maximum cv gatton panic. Cover factors were (D) soil without tree cover (Qb) soil under the cover of Aspidosperma quebracho blanco and (M) soil under cover of Ziziphus mistol. RBI maintained carbon stocks of soil and native tree cover was important in preserving soil organic matter and microbial activity. Soil carbon, soil nitrogen and soil microbial activity was a function of tree cover and levels COS, COP, NT and RE were lower in soil without tree cover, intermediate under cover of Aspidosperma quebracho blanco and higher under the canopy of Ziziphus mistol because of the increased supply of litter by the later specie. The combined effect of a large input of organic litter and minimal disturbance determined best conditions for the functionality of heterotrophic microorganisms, with positive effects on C storage in the topsoil. Thus, it is shown that rolling and planting of Panicum maximum cv Gatton panic did not affect the quality of a soil in the Chaco region
International
Si
JCR
No
Title
Ciencia del Suelo
ISBN
1850-2067
Impact factor JCR
Impact info
Volume
Journal number
33
From page
19
To page
29
Month
SIN MES
Ranking
Participants
  • Autor: J.E. Silberman
  • Autor: A.L. Enriquez
  • Autor: Jose Alfonso Dominguez Nuñez (UPM)
  • Autor: Carlos Kunst
  • Autor: Ada Albanesi
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Economía y Sostenibilidad del Medio Natural
  • Departamento: Sistemas y Recursos Naturales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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