Factors controlling deadwood availability and branch decay in two Prosopis woodlands in the Central Monte, Argentina

Andreu, Joaquín; Villagra, Pablo E.; Villalba, Ricardo

doi:10.1016/j.foreco.2011.04.032

Cited by 11 publications

(7 citation statements)

References 18 publications

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“…In the transition zone, a local community of approximately fourteen families extract wood for domestic use, including coarse woody debris and stems and deadwood from living trees. This area presents an intense extraction pressure, considering the time of deadwood production in Prosopis woodlands (~20 years) (Alvarez et al 2011a). As grazing disturbance is not present in this area, we referred to it as an area with wood extraction disturbance.…”

Section: ₁₁₁mentioning

confidence: 99%

“…However, the combination of low or moderate grazing and high wood extraction increased the adults and saplings. Disturbances as grazing and wood extraction can produce the destruction of apical bud of saplings favoring their resprout and generating multi-stemmed trees (Alvarez et al 2011a). Furthermore, clumping of seedlings and young trees was associated with grazing sites because cattle facilitate the germination process (Aschero and García 2012).…”

Section: D��mentioning

confidence: 99%

“…Regulated removal of wood can enhance the entrance of light to the crown improving growth (Alvarez et al 2011b). Woodlands of Central Monte have the capacity for firewood production (Alvarez et al 2011a), so the planned removal of standing wood would be a possible activity in arid lands without grazing.…”

Section: Management Considerationsmentioning

confidence: 99%

“…Once woody plants reach the sapling stage, they become much less vulnerable, but competition, nutrient limitations and disturbances such as herbivory can combine to slow down sapling development and prolong the time they require to reach the adult stage (Archer et al 2017). Likewise, disturbances such as grazing or wood extraction can cause the destruction of the apical bud in P. flexuosa saplings, favoring vegetative regeneration (regrowth) and generating individuals with multiple stems (Alvarez et al 2011a).…”

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confidence: 99%

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Interactive effects of chronic anthropogenic disturbances on Prosopis woodland structure in the Central Monte, Argentina

et al. 2022

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In drylands all over the world, chronic anthropic disturbances are relevant factors for woodland degradation. Different disturbances can potentially interact to change vegetation structure. Knowing woodland structure is crucial for be�er predicting forest dynamic because trees of different sizes significantly affect the regeneration processes, number of saplings and young trees, crown traits and competition a�ributes. Throughout the Monte biogeographic region, grazing and wood extraction are the main anthropogenic disturbances on Prosopis dry woodlands that can generate modifications in key ecosystem processes. First, we aimed to assess woodland structure at sites under chronic anthropic disturbances. Subsequently, we explored how the combination of grazing and wood extraction affected the population structure of P. flexuosa considered by classes: seedlings, saplings and adults. We found that sites under disturbances presented a high density of trees of smaller sizes. Besides, the interaction effect between grazing and wood extraction depended on the intensities of each of the disturbances. The combination of high intensities of both grazing and wood extraction negatively affected the abundance of all classes, but low or moderate grazing intensities combined with high wood extraction had a positive effect on the abundance of saplings and adults. High intensities of co-occurring disturbances decreased seedling abundance affecting forest recruitment which also was negatively reflected in sapling and adult abundance. However, the combination of low or moderate grazing and high wood extraction generated a woodland structure characterized by few seedlings, and many saplings and adult trees of small size. Application of management options (e.g., spatial or temporal separation of human use, programmed management of grazing and wood extraction intensities or planned practices as wood removal for local use) should contribute to enhance the provision of ecosystem services in Prosopis sp. woodlands without risking regeneration persistence and improving the woodland structure.

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Section: ₁₁₁mentioning

confidence: 99%

Section: D��mentioning

confidence: 99%

Section: Management Considerationsmentioning

confidence: 99%

mentioning

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Interactive effects of chronic anthropogenic disturbances on Prosopis woodland structure in the Central Monte, Argentina

et al. 2022

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“…Para el desierto del Monte, la descripción actual de los algarrobales (Alvarez et al, 2006;Cesca, 2014;Gil, 2014;Villagra et al, 2004), su historia de uso (Abraham & Prieto, 1999;Prieto et al, 2003;Rojas, 2013), la potencialidad de manejo de los mismos (Alvarez et al, 2011a(Alvarez et al, , 2011b y las consecuencias del uso humano sobre estos recursos naturales (Meglioli et al, 2013;Vázquez et al, 2011), conforman información de base que es necesario seguir completando. En el Monte septentrional, las principales unidades boscosas se ubican en el fondo de valles y bolsones, en sitios donde los niveles freáticos son accesibles a las raíces de especies del género Prosopis (Rundel et al, 2006).…”

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Estructura, distribución y estado de conservación de los bosques de Prosopis flexuosa del Bolsón de Fiambalá (Catamarca)

Andreu¹,

Villagra²,

Cesca³

et al. 2015

Bol. Soc. Argent. Bot.

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Los bosques de Prosopis flexuosa han permitido históricamente la subsistencia y desarrollo de los oasis productivos al pie de la Cordillera de Los Andes, mediante el uso de sus recursos forestales. La normativa actual determina que la utilización de estos recursos dependa del ordenamiento territorial de los bosques. Sin embargo, el conocimiento de los bosques de zonas áridas es incompleto. Nos propusimos determinar: distribución, estructura actual, estado de conservación y crecimiento leñoso de los algarrobales del Bolsón de Fiambalá. Se identificaron unidades boscosas mediante la clasificación supervisada de imágenes. Se realizaron estudios poblacionales de P. flexuosa, se midieron variables alométricas y se aplicaron técnicas dendrocronológicas tradicionales. Se distinguieron dos tipos de bosque: denso con mayor cobertura total (39 %) y ralo (21 %). Las estructuras de diámetro fueron similares, sin embargo fue mayor la altura total, la cantidad de árboles maderables y el área basal en el bosque denso. Fue similar el grado de utilización y el estado de conservación. Las diferencias entre los bosques pueden explicarse por la posición del bosque relativa al acuífero subterráneo y al tipo de suelo. La conservación y utilización controlada de estos recursos, constituye un aporte a la mitigación del cambio climático ya que los algarrobales constituyen el principal reservorio de C en los sistemas desérticos.

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Dendroecology of Prosopis Species in the World: Secular Traces of Natural and Anthropic Events and Their Effects on Prosopis Growth

Cangiano

Cendoya

Risio-Allione

et al. 2020

Latin American Dendroecology

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Factors controlling deadwood availability and branch decay in two Prosopis woodlands in the Central Monte, Argentina

Cited by 11 publications

References 18 publications

Interactive effects of chronic anthropogenic disturbances on Prosopis woodland structure in the Central Monte, Argentina

Interactive effects of chronic anthropogenic disturbances on Prosopis woodland structure in the Central Monte, Argentina

Estructura, distribución y estado de conservación de los bosques de Prosopis flexuosa del Bolsón de Fiambalá (Catamarca)

Dendroecology of Prosopis Species in the World: Secular Traces of Natural and Anthropic Events and Their Effects on Prosopis Growth

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