Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments

Autores
Kunst, Carlos Roberto; Ledesma, Roxana Ramona; Bravo, Sandra; Albanesi de Garay, Ada Susana; Anriquez, Analía Liliana; Van Meer, Howard; Godoy, Jose Alberto
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Vegetation states with low suitability for cattle raising (‘woody states’) are widespread in the Chaco region (NW Argentina). We assessed the success of roller-chopper (RR); roller-chopper with seeding of Panicum maximum cv green panic (RS), and roller chopper followed by prescribed fire (RF) in disrupting a woody state in two separate experiments, monitored from 1997 to 2002. We evaluated amount and temporal dynamics of woody plant volume, standing herbaceous biomass and livestock accessibility. We also monitored soil moisture at two soil depths, sunlight availability and the dynamics of germination of grass, forbs and woody species. Spatial variation was included as ecological sites, and all treatments were grazed. The longevity for each treatment was estimated by monitoring the woody volume through time. Data were analyzed using variance and regression analysis. MRPP techniques were used to study the effect on species diversity. Results were compared with information in literature to define thresholds and success of restoration. RF showed the lowest mean woody canopy (p > F = 0.0001), the largest mean accessibility (>70%), and longest return interval (>6 years) among treatments. RS showed the largest amount of herbaceous standing biomass (>5000 kg dry matter ha−1, p > F = 0.0001), and a longevity >5 years. Prescribed fire was successful in controlling the increase of woody volume only at lowland and midland ecosites. At upland ecosites in RS and RR, mean woody volume and accessibility were higher than in the other two sites. Plant diversity was significantly affected by ecosite rather than by treatment and time. Soil moisture was influenced by site (p > F = 0.001), while sunlight availability was affected by treatment (p > F = 0.001). Plant germination was affected by treatment and site. The roller chopper is an adequate tool for disrupting woody states in the Chaco and could be successfully combined with prescribed fire.
EEA Santiago del Estero
Fil: Kunst, Carlos Roberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fil: Ledesma, Roxana Ramona. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fil: Bravo, Sandra. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales. Cátedra de Botánica; Argentina
Fil: Albanesi de Garay, Ada Susana. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina
Fil: Anriquez, Analia Liliana. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina
Fil: Van Meer, Howard. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fil: Godoy, Jose Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fuente
Ecological Engineering 42 : 42-53. (May 2012)
Materia
Plantas Leñosas
Quema Controlada
Picadoras
Woody Plants
Controlled Burning
Choppers
Región Chaqueña, Argentina
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/14795
Acceder
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oai_identifier_str oai:localhost:20.500.12123/14795
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatmentsKunst, Carlos RobertoLedesma, Roxana RamonaBravo, SandraAlbanesi de Garay, Ada SusanaAnriquez, Analía LilianaVan Meer, HowardGodoy, Jose AlbertoPlantas LeñosasQuema ControladaPicadorasWoody PlantsControlled BurningChoppersRegión Chaqueña, ArgentinaVegetation states with low suitability for cattle raising (‘woody states’) are widespread in the Chaco region (NW Argentina). We assessed the success of roller-chopper (RR); roller-chopper with seeding of Panicum maximum cv green panic (RS), and roller chopper followed by prescribed fire (RF) in disrupting a woody state in two separate experiments, monitored from 1997 to 2002. We evaluated amount and temporal dynamics of woody plant volume, standing herbaceous biomass and livestock accessibility. We also monitored soil moisture at two soil depths, sunlight availability and the dynamics of germination of grass, forbs and woody species. Spatial variation was included as ecological sites, and all treatments were grazed. The longevity for each treatment was estimated by monitoring the woody volume through time. Data were analyzed using variance and regression analysis. MRPP techniques were used to study the effect on species diversity. Results were compared with information in literature to define thresholds and success of restoration. RF showed the lowest mean woody canopy (p > F = 0.0001), the largest mean accessibility (>70%), and longest return interval (>6 years) among treatments. RS showed the largest amount of herbaceous standing biomass (>5000 kg dry matter ha−1, p > F = 0.0001), and a longevity >5 years. Prescribed fire was successful in controlling the increase of woody volume only at lowland and midland ecosites. At upland ecosites in RS and RR, mean woody volume and accessibility were higher than in the other two sites. Plant diversity was significantly affected by ecosite rather than by treatment and time. Soil moisture was influenced by site (p > F = 0.001), while sunlight availability was affected by treatment (p > F = 0.001). Plant germination was affected by treatment and site. The roller chopper is an adequate tool for disrupting woody states in the Chaco and could be successfully combined with prescribed fire.EEA Santiago del EsteroFil: Kunst, Carlos Roberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; ArgentinaFil: Ledesma, Roxana Ramona. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; ArgentinaFil: Bravo, Sandra. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales. Cátedra de Botánica; ArgentinaFil: Albanesi de Garay, Ada Susana. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; ArgentinaFil: Anriquez, Analia Liliana. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; ArgentinaFil: Van Meer, Howard. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; ArgentinaFil: Godoy, Jose Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; ArgentinaElsevier2023-07-21T11:34:24Z2023-07-21T11:34:24Z2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/14795https://www.sciencedirect.com/science/article/pii/S092585741200047X0925-85741872-6992https://doi.org/10.1016/j.ecoleng.2012.01.025Ecological Engineering 42 : 42-53. (May 2012)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-11-13T08:47:35Zoai:localhost:20.500.12123/14795instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-11-13 08:47:35.414INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
title Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
spellingShingle Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
Kunst, Carlos Roberto
Plantas Leñosas
Quema Controlada
Picadoras
Woody Plants
Controlled Burning
Choppers
Región Chaqueña, Argentina
title_short Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
title_full Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
title_fullStr Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
title_full_unstemmed Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
title_sort Disrupting woody steady states in the Chaco region (Argentina): Responses to combined disturbance treatments
dc.creator.none.fl_str_mv Kunst, Carlos Roberto
Ledesma, Roxana Ramona
Bravo, Sandra
Albanesi de Garay, Ada Susana
Anriquez, Analía Liliana
Van Meer, Howard
Godoy, Jose Alberto
author Kunst, Carlos Roberto
author_facet Kunst, Carlos Roberto
Ledesma, Roxana Ramona
Bravo, Sandra
Albanesi de Garay, Ada Susana
Anriquez, Analía Liliana
Van Meer, Howard
Godoy, Jose Alberto
author_role author
author2 Ledesma, Roxana Ramona
Bravo, Sandra
Albanesi de Garay, Ada Susana
Anriquez, Analía Liliana
Van Meer, Howard
Godoy, Jose Alberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Plantas Leñosas
Quema Controlada
Picadoras
Woody Plants
Controlled Burning
Choppers
Región Chaqueña, Argentina
topic Plantas Leñosas
Quema Controlada
Picadoras
Woody Plants
Controlled Burning
Choppers
Región Chaqueña, Argentina
dc.description.none.fl_txt_mv Vegetation states with low suitability for cattle raising (‘woody states’) are widespread in the Chaco region (NW Argentina). We assessed the success of roller-chopper (RR); roller-chopper with seeding of Panicum maximum cv green panic (RS), and roller chopper followed by prescribed fire (RF) in disrupting a woody state in two separate experiments, monitored from 1997 to 2002. We evaluated amount and temporal dynamics of woody plant volume, standing herbaceous biomass and livestock accessibility. We also monitored soil moisture at two soil depths, sunlight availability and the dynamics of germination of grass, forbs and woody species. Spatial variation was included as ecological sites, and all treatments were grazed. The longevity for each treatment was estimated by monitoring the woody volume through time. Data were analyzed using variance and regression analysis. MRPP techniques were used to study the effect on species diversity. Results were compared with information in literature to define thresholds and success of restoration. RF showed the lowest mean woody canopy (p > F = 0.0001), the largest mean accessibility (>70%), and longest return interval (>6 years) among treatments. RS showed the largest amount of herbaceous standing biomass (>5000 kg dry matter ha−1, p > F = 0.0001), and a longevity >5 years. Prescribed fire was successful in controlling the increase of woody volume only at lowland and midland ecosites. At upland ecosites in RS and RR, mean woody volume and accessibility were higher than in the other two sites. Plant diversity was significantly affected by ecosite rather than by treatment and time. Soil moisture was influenced by site (p > F = 0.001), while sunlight availability was affected by treatment (p > F = 0.001). Plant germination was affected by treatment and site. The roller chopper is an adequate tool for disrupting woody states in the Chaco and could be successfully combined with prescribed fire.
EEA Santiago del Estero
Fil: Kunst, Carlos Roberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fil: Ledesma, Roxana Ramona. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fil: Bravo, Sandra. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales. Cátedra de Botánica; Argentina
Fil: Albanesi de Garay, Ada Susana. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina
Fil: Anriquez, Analia Liliana. Universidad Nacional de Santiago del Estero. Facultad de Agronomía y Agroindustrias; Argentina
Fil: Van Meer, Howard. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
Fil: Godoy, Jose Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santiago del Estero; Argentina
description Vegetation states with low suitability for cattle raising (‘woody states’) are widespread in the Chaco region (NW Argentina). We assessed the success of roller-chopper (RR); roller-chopper with seeding of Panicum maximum cv green panic (RS), and roller chopper followed by prescribed fire (RF) in disrupting a woody state in two separate experiments, monitored from 1997 to 2002. We evaluated amount and temporal dynamics of woody plant volume, standing herbaceous biomass and livestock accessibility. We also monitored soil moisture at two soil depths, sunlight availability and the dynamics of germination of grass, forbs and woody species. Spatial variation was included as ecological sites, and all treatments were grazed. The longevity for each treatment was estimated by monitoring the woody volume through time. Data were analyzed using variance and regression analysis. MRPP techniques were used to study the effect on species diversity. Results were compared with information in literature to define thresholds and success of restoration. RF showed the lowest mean woody canopy (p > F = 0.0001), the largest mean accessibility (>70%), and longest return interval (>6 years) among treatments. RS showed the largest amount of herbaceous standing biomass (>5000 kg dry matter ha−1, p > F = 0.0001), and a longevity >5 years. Prescribed fire was successful in controlling the increase of woody volume only at lowland and midland ecosites. At upland ecosites in RS and RR, mean woody volume and accessibility were higher than in the other two sites. Plant diversity was significantly affected by ecosite rather than by treatment and time. Soil moisture was influenced by site (p > F = 0.001), while sunlight availability was affected by treatment (p > F = 0.001). Plant germination was affected by treatment and site. The roller chopper is an adequate tool for disrupting woody states in the Chaco and could be successfully combined with prescribed fire.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
2023-07-21T11:34:24Z
2023-07-21T11:34:24Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/14795
https://www.sciencedirect.com/science/article/pii/S092585741200047X
0925-8574
1872-6992
https://doi.org/10.1016/j.ecoleng.2012.01.025
url http://hdl.handle.net/20.500.12123/14795
https://www.sciencedirect.com/science/article/pii/S092585741200047X
https://doi.org/10.1016/j.ecoleng.2012.01.025
identifier_str_mv 0925-8574
1872-6992
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Ecological Engineering 42 : 42-53. (May 2012)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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