Effects of volcanic ash deposition on the early recovery of gap vegetation in Northwestern Patagonian steppes

Ghermandi, Luciana; Gonzalez, Sofía Laura; Franzese, Jorgelina; Oddi, Facundo José

doi:10.1016/j.jaridenv.2015.06.020

Cited by 22 publications

(18 citation statements)

References 35 publications

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“…Therefore explosive eruptions are capable of causing significant environmental repercussions, affecting simultaneously many cycles in the Earth's system, impacting on water, soil and surface sediments. An important reflection of volcanic activity is the natural contribution of chemical elements [10]. Neutron Activation Analysis (NAA) is a sensitive analytical technique which useful for performing both qualitative and quantitative multi-elemental analysis of major, minor and trace elements in samples from almost every field of scientific or technical interest.…”

Section: Introductionmentioning

confidence: 99%

Elemental characterization of Mt. Sinabung volcanic ash, Indonesia by Neutron Activation Analysis

Kusmartini

Syahfitri

Kurniawati

et al. 2017

J. Phys.: Conf. Ser.

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22, 19.63, 20.34, 3.86, and 2.57 ppm respectively. The results of the elemental contents of volcanic ash that has been obtained can be used as the scientific based data for volcanic material utilization by considering the economic potential of elements contained and also the danger of the heavy metals content. IntroductionMount Sinabung is a stratovolcano, located in Karo Regency, North Sumatra Province of Indonesia. It is a solitary volcano that has a single peak, and classified as B -Type, because since the 1600's there was no record of eruptive activity [1]. But on November 24, 2013, Mount Sinabung were erupted and reach the highest alert level (level 4) since it spat out black and thick smog, followed by rain sand and volcanic ash which covered thousands of hectares of farmer crops under the radius of six kilometers [2]. Volcanic ash is fragments of magma and consists of mineral, volcanic glass and also a material containing high silica and aluminum [2,3]. The composition of particles from volcanic eruptions should reflect the matrix composition of the magma. 06, 14.66, 1.88, 0.07, 0.6, 1.99, 4.18, 2.89, 0.2 % respectively [5]. These materials in the ash can provide important information on the nature of magma because chemical compositions of magma usually show distinct features of each volcano and because the assemblages and compositions of minerals

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Section: Introductionmentioning

confidence: 99%

Elemental characterization of Mt. Sinabung volcanic ash, Indonesia by Neutron Activation Analysis

Kusmartini

Syahfitri

Kurniawati

et al. 2017

J. Phys.: Conf. Ser.

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“…Contrariamente al efecto negativo esperado la erupción CVCPP produjo en suelos de la estepa patagónica un incremento en la actividad biótica y del reciclado del carbono (Berenstecher et al). Luego de 10 meses de la erupción del CVPCC de 2011, se observó en la estepa patagónica (a 100 km del CVPCC) que la recuperación de la vegetación fue mayor en parches cubiertos con 3 cm de tefra que en aquellos sin ceniza (Ghermandi et al 2015). El bosque sobreviviente desempeñó un papel clave en la recuperación del ecosistema después de la deposición de tefra, proporcionando semillas y materia orgánica y estableciendo las condiciones apropiadas para las plantas, los invertebrados y los microorganismos que a su vez aceleraran el desarrollo del suelo (Ferreiro et al 2018).…”

Section: Las Erupciones Volcánicas Análisis De Un Disturbio Naturalunclassified

“…I), y debido a la predominancia de vientos del cuadrante oeste, gran parte de la ceniza cayó en territorio argentino. La superficie del suelo de la cuenca del lago Nahuel Huapi se cubrió por depósitos de material volcánico, y en las zonas más cercanas al volcán la vegetación se tapó completamente (Ghermandi et al 2015).…”

Section: Introductionunclassified

Sustained effects of volcanic ash on biofilm stoichiometry, enzyme activity and community composition in North- Patagonia streams

Carrillo

Díaz-Villanueva

Modenutti

2018

Science of The Total Environment

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Volcanic eruptions are extreme perturbations that affect ecosystems. These events can also produce persistent effects in the environment for several years after the eruption, with increased concentrations of suspended particles and the introduction of elements in the water column. On 4th June 2011, the Puyehue-Cordón Caulle Volcanic Complex (40.59°S-72.11°W, 2200m.a.s.l.) erupted explosively in southern Chile. The area affected by the volcano was devastated; a thick layer of volcanic ash (up to 30cm) was deposited in areas 50 km east of the volcano towards Argentina. The aim of the present study was to evaluate the effect of volcanic ash deposits on stream ecosystems four years after the eruption, comparing biofilm stoichiometry, alkaline phosphatase activity, and primary producer's assemblage in streams which were severely affected by the volcano with unaffected streams. We confirmed in the laboratory that ash deposited in the catchment of affected streams still leach phosphorus (P) into the water four years after eruption. Results indicate that affected streams still receive volcanic particles and that these particles release P, thus stream water exhibits high P concentration. Biofilm P content was higher and the C:P ratio lower in affected streams compared to unaffected streams. As a consequence of less P in unaffected streams, the alkaline phosphatase activity was higher compared to affected streams. Cyanobacteria increased their abundances (99.9% of total algal biovolume) in the affected streams suggesting that the increase in P may positively affect this group. On the contrary, unaffected streams contained a diatom dominant biofilm. In this way, local heterogeneity was created between sub-catchments located within 30 km of each other. These types of events should be seen as opportunities to gather valuable ecological information about how severe disturbances, like volcanic eruptions, shape landscapes and lotic systems for several years after the event.

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“…The area known as De los Siete Lagos road includes National Route 40 which was built between 2005 and 2015 and where 25-30 cm of sandy volcanic tephra was deposited, both in roadsides as in adjacent areas of protected Andean cold-wet forest (Gait an et al 2011). So far, studies on the PCCVC eruption have studied the effects of tephra on terrestrial vegetation (Ghermandi et al 2015), stream (Lallement et al 2014), terrestrial (Boretto et al 2014) and soil fauna (Berenstecher et al 2017). In addition, Ferreiro et al (2018) reported increased succession and soil development in the forest compared to roadside substrate, and Ferreiro et al (2020) studied the promotion of roadside revegetation by compost application.…”

Section: Introductionmentioning

confidence: 99%

“…So far, studies on the PCCVC eruption have studied the effects of tephra on terrestrial vegetation (Ghermandi et al . 2015), stream (Lallement et al . 2014), terrestrial (Boretto et al .…”

Section: Introductionmentioning

confidence: 99%

LupinuspolyphyllusLindl. andRumex acetosellaL. effects on nutrient accumulation and microbial activity on tephra from the Puyehue–Cordón Caulle eruption (2011)

et al. 2020

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Effects of volcanic ash deposition on the early recovery of gap vegetation in Northwestern Patagonian steppes

Cited by 22 publications

References 35 publications

Elemental characterization of Mt. Sinabung volcanic ash, Indonesia by Neutron Activation Analysis

Elemental characterization of Mt. Sinabung volcanic ash, Indonesia by Neutron Activation Analysis

Sustained effects of volcanic ash on biofilm stoichiometry, enzyme activity and community composition in North- Patagonia streams

LupinuspolyphyllusLindl. andRumex acetosellaL. effects on nutrient accumulation and microbial activity on tephra from the Puyehue–Cordón Caulle eruption (2011)

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