&lt;i&gt;Acacia cyclops&lt;/i&gt; A. Cunn. ex G. Don (Leguminosae) in Italy: first cases of naturalization

Pasta, Salvatore; Badalamenti, Emilio; Mantia, Tommaso La

doi:10.3989/ajbm.2314

Cited by 13 publications

(5 citation statements)

References 38 publications

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“…One would expect that the degraded soil, i.e., with lower organic matter and higher bulk density, could be more prone to runoff and erosion processes than the unburned soil [72]. However, despite common perceptions, Mediterranean vegetation adapts to fire and plant recolonization in burnt areas relatively quickly (e.g., [3,73,74]). According to many authors, vegetation recovering promptly reduces post-fire runoff and soil erosion rates (e.g., [75,76]).…”

Section: Discussionmentioning

confidence: 99%

Comparing Transient and Steady-State Analysis of Single-Ring Infiltrometer Data for an Abandoned Field Affected by Fire in Eastern Spain

Prima

Lassabatère

Rodrigo‐Comino

et al. 2018

Water

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Abstract:This study aimed at determining the field-saturated soil hydraulic conductivity, K fs , of an unmanaged field affected by fire by means of single-ring infiltrometer runs and the use of transient and steady-state data analysis procedures. Sampling and measurements were carried out in 2012 and 2017 in a fire-affected field (burnt site) and in a neighboring non-affected site (control site). The predictive potential of different data analysis procedures (i.e., transient and steady-state) to yield proper K fs estimates was investigated. In particular, the transient WU1 method and the BB, WU2 and OPD methods were compared. The cumulative linearization (CL) method was used to apply the WU1 method. Values of K fs ranging from 0.87 to 4.21 mm·h −1 were obtained, depending on the considered data analysis method. The WU1 method did not yield significantly different K fs estimates between the sampled sites throughout the five-year period, due to the generally poor performance of the CL method, which spoiled the soil hydraulic characterization. In particular, good fits were only obtained in 23% of the cases. The BB, WU2 and the OPD methods, with a characterization based exclusively on a stabilized infiltration process, yielded an appreciably lower variability of the K fs data as compared with the WU1 method. It was concluded that steady-state methods were more appropriate for detecting slight changes of K fs in post-fire soil hydraulic characterizations. Our results showed a certain degree of soil degradation at the burnt site with an immediate reduction of the soil organic matter and a progressive increase of the soil bulk density during the five years following the fire. This general impoverishment resulted in a slight but significant decrease in the field-saturated soil hydraulic conductivity.

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Section: Discussionmentioning

confidence: 99%

Comparing Transient and Steady-State Analysis of Single-Ring Infiltrometer Data for an Abandoned Field Affected by Fire in Eastern Spain

Prima

Lassabatère

Rodrigo‐Comino

et al. 2018

Water

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“…While being a concern, these species such as A. dealbata become part of ecosystems, with adaptations of both ecosystems and the species to the new situation, leading to the organization of forest space and the services it provides [23,24]. Ecosystem services shall be reconsidered to include these species and the positive role they may eventually play since the negative impacts are already widely recognized [25].…”

Section: Figurementioning

confidence: 99%

Carbon Sequestration Potential of Forest Invasive Species: A Case Study with Acacia dealbata Link

et al. 2021

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Biological invasions are of complex solution, consuming resources for their control and eradication. However, in many of the documented processes that are available, this is an attempt with no solution in sight. The possibility of increasing the pressure over these species while creating value chains has been presented as a method for ensuring the sustainability of their control and eradication processes. In the case of invasive forest species in Portugal, such as Acacia dealbata Link, this control is becoming increasingly important. In addition to the negative impacts on biodiversity, the proliferation of this species has economic implications due to its competition with forest production species such as Pinus pinaster Aiton and Eucalyptus globulus Labill. Another critical aspect to be considered is the increase of the risk of rural fires, which is enhanced by the accumulation of low-value biomass around production forests. In this work, the possibility of using this species as a vehicle for the capture and sequestration of carbon in the medium and long-term was evaluated from a perspective of providing ecosystem services as a measure to mitigate climate change. However, due to its highly heliophilous character, it was found that the growth capacity of this species is rapidly conditioned by the position of each tree within a stand, not being able to maintain that capacity in the medium and long term.

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“…For fast-growing trees, like Acacias, a time span of 20-25 years is already considered a long-term invasion [61,62]. A factor explaining the massive regeneration of A. saligna in recent decades could be the improvement in edaphic conditions due to Acacia litter accumulation, as was found for Acacia cyclops on the Island of Lampedusa [63]. Time has also allowed A. saligna to express its maximum reproductive potential.…”

Section: Acacia Managementmentioning

confidence: 99%

Pine Stand Density Influences the Regeneration of Acacia saligna Labill. H.L.Wendl. and Native Woody Species in a Mediterranean Coastal Pine Plantation

Badalamenti

Bueno

Campo

et al. 2018

Forests

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Mediterranean plantations are the most suitable areas to assess vegetation dynamics and competitive interactions between native and exotic woody species. Our research was carried out in a coastal pine plantation (Sicily) where renaturalization by native species (Pistacia lentiscus L. and Olea europaea var. sylvestris) and invasion by Acacia saligna (Labill.) H.L.Wendl. simultaneously occur. The regeneration pattern of woody species in the pine understory was evaluated in six experimental plots along a stand density gradient, from 200 to approximately 700 pines per hectare. Both pine stand density and regeneration by native species had a significant negative relationship with Acacia natural regeneration. Olea regeneration was positively correlated with stand density, while Pistacia showed a non-significant relationship. Saplings of both native species were mostly less than 1 m high, whereas approximately 70% of Acacia individuals were higher than 1 m. We found that 400 pines per hectare should be considered a minimum stand density to keep Acacia under control, while favouring the establishment of native species in the understory. The successful control of Acacia requires an integrated management strategy, including different forest interventions according to stand density: thinning, control measures against Acacia, and renaturalization actions.

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<i>Acacia cyclops</i> A. Cunn. ex G. Don (Leguminosae) in Italy: first cases of naturalization

Cited by 13 publications

References 38 publications

Comparing Transient and Steady-State Analysis of Single-Ring Infiltrometer Data for an Abandoned Field Affected by Fire in Eastern Spain

Comparing Transient and Steady-State Analysis of Single-Ring Infiltrometer Data for an Abandoned Field Affected by Fire in Eastern Spain

Carbon Sequestration Potential of Forest Invasive Species: A Case Study with Acacia dealbata Link

Pine Stand Density Influences the Regeneration of Acacia saligna Labill. H.L.Wendl. and Native Woody Species in a Mediterranean Coastal Pine Plantation

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