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Spatial and temporal patterns of forest fires in the Central Monte:relationships with regional climate

Ecological Processes 2024年第1期13卷 66-79页

作者： pablo eugenio villagra Erica Cesca Leandro Manuel Alvarez Silvia Delgado Ricardo Villalba Instituto Argentino de Nivología Glaciología y Ciencias Ambientales–CONICET-CCT Mendoza Facultad de Ciencias Agrarias Universidad Nacional de Cuyo

Background Natural and anthropogenic wildfires burn large areas of arid and semi-arid forests with significant socio-economic and environmental impacts. Fire regimes are controlled by climate, vegetation type, and anthropogenic factors such as ignition sources and human-induced disturbances. Projections of climate and land-use change suggest that these controlling factors will change, altering fire regimes in the near future. In the southern Central Monte, Mendoza, Argentina, the factors that modulate the fire temporal and spatial variability are poorly understood. We reconstructed the fire history of southeast of Mendoza from 1984 to 2023 and investigated the relationships between fire extent and climate variability at seasonal and interannual scales. Burned areas were determined using Google Earth Engine by processing Landsat 5-TM, Landsat 7-ETM+, and Landsat 8-OLI-TIRS sensor *** The region exhibited high spatial and temporal variability in fire occurrence, being a mosaic of areas with different fire histories and recovery times. Between 1985 and 2023, fire recurrence ranged from sites unburned to sites with up to 14 fires. The occurrence of large fires was strongly favored by a combination of a year with abundant spring–early summer precipitation, which favors fuel accumulation, followed by a year of low spring–early summer precipitation. Precipitation and burnt area showed a very pronounced 6–7 year cycle, suggesting a dominant climatic control on fire *** Fire distribution in southeastern Mendoza forests is not homogeneous, resulting in a mosaic of patches with different fire histories. This heterogeneity may be related to vegetation patterns and land use. The temporal variability of fires is strongly influenced by climate variability, which would promote fuel production and subsequent drying. Large fires are concentrated in periods of high interannual precipitation variability. Climate change scenarios predict an increase in tem

关键词： Fire recurrence Fire mapping Recovery time Climate Dry forest Wildfire

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Soil organic carbon stocks in native forest of Argentina:a useful surrogate for mitigation and conservation planning under climate variability

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Ecological Processes 2024年第1期13卷 3-24页

作者： pablo L.Peri Juan Gaitán Matías Mastrangelo Marcelo Nosetto pablo E.villagra Ezequiel Balducci Martín Pinazo Roxana P.Eclesia Alejandra Von Wallis Sebastián Villarino Francisco Alaggia Marina González Polo Silvina Manrique pablo A.Meglioli Julián Rodríguez-Souilla Martín Mónaco Jimena E.Chaves Ariel Medina Ignacio Gasparri eugenio Alvarez Arnesi María Paula Barral Axel von Müller Norberto M.Pahr Josefina Uribe Echevarria Pedro Fernández Marina Morsucci Dardo López Juan Manuel Cellini Leandro Alvarez Ignacio Barberis Hernán Colomb Ludmila La Manna Sebastián Barbaro Cecilia Blundo Ximena Sirimarco Laura Cavallero Gualberto Zalazar Guillermo Martínez Pastur Instituto Nacional de Tecnología Agropecuaria (INTA) Universidad Nacional de la Patagonia Austral (UNPA) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Universidad Nacional de Luján Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Grupo de Estudio de Agroecosistemas y Paisajes Rurales (GEAP) Universidad Nacional de Mar del Plata Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET ) CCT San Luis Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Instituto Argentino de Nivología Glaciología y Ciencias Ambientales (IANIGLA) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Universidad Nacional de Cuyo Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Instituto de Investigaciones en Energía No Convencional CCT Salta-JujuyConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Laboratorio de Recursos Agroforestales Centro Austral de Investigaciones Científicas (CADIC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Dirección Nacional de Bosques Ministerio de Ambiente y Desarrollo Sostenible de la Nación Instituto de Ecología Regional Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET )Universidad Nacional de Tucumán Universidad Nacional de Rosario Instituto de Investigaciones en Ciencias Agrarias de Rosario Centro Científico Tecnológico CONICET Grupo de Estudio de Agroecosistemas y Paisajes Rurales (GEAP) Universidad Nacional de Mar del Plata Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Laboratorio de Investigaciones en Maderas (LIMAD) Universidad Nacional de La Plata (UNLP) Administración de Parques Nacionales (APN) Parque Nacional Los Alerces Centro de Estudios Ambientales Integrados (CEAI) Universidad Nacional de la Patagonia San Juan Bosco (UNPASJB) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET )

Background The nationally determined contribution（NDC） presented by Argentina within the framework of the Paris Agreement is aligned with the decisions made in the context of the United Nations Framework Conven-tion on Climate Change（UNFCCC） on the reduction of emissions derived from deforestation and forest degradation, as well as forest carbon conservation（REDD+）. In addition, climate change constitutes one of the greatest threats to forest biodiversity and ecosystem services. However, the soil organic carbon（SOC） stocks of native forests have not been incorporated into the Forest Reference Emission Levels calculations and for conservation planning under cli-mate variability due to a lack of information. The objectives of this study were:（i） to model SOC stocks to 30 cm of native forests at a national scale using climatic, topographic and vegetation as predictor variables, and（ii） to relate SOC stocks with spatial–temporal remotely sensed indices to determine biodiversity conservation concerns due to threats from high inter-annual climate *** We used 1040 forest soil samples（0–30 cm） to generate spatially explicit estimates of SOC native forests in Argentina at a spatial resolution of approximately 200 m. We selected 52 potential predictive environmental covari-ates, which represent key factors for the spatial distribution of SOC. All covariate maps were uploaded to the Google Earth Engine cloud-based computing platform for subsequent modelling. To determine the biodiversity threats from high inter-annual climate variability, we employed the spatial–temporal satellite-derived indices based on Enhanced Vegetation Index（EVI） and land surface temperature（LST） images from Landsat *** SOC model（0–30 cm depth） prediction accounted for 69% of the variation of this soil property across the whole native forest coverage in Argentina. Total mean SOC stock reached 2.81 Pg C（2.71–2.84 Pg C with a probability of 90%） for a total area of 460,790 km2,

关键词： Soil organic carbon Biodiversity Native forest Climate change mitigation Modelling Resilience

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Fertirrigation with Low-Pressure Multi-Gate Irrigation Systems in Sugarcane Agroecosystems:A Review

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Pedosphere 2019年第1期29卷 1-11页

作者： Arturo GARCIA-SALDANA Cesareo LANDEROS-SANCHEZ Maria del Refugio CASTANEDA-CHAVEZ Juan pablo MARTINEZ-DAVILA Arturo PEREZ-VAZQUEZ eugenio CARRILLO-AVILA Postgraduate College Campus Veracruz Tepetates C.P.91674(Mexico) Technological Institute of Boca del Rio(ITBOCA) Boca del Rio C.P.94290(Mexico) Postgraduate College Campus Campeche Campeche C.P.24450(Mexico)

There are very few studies on the application of fertilizers through irrigation water(fertirrigation) using a multi-gate irrigation system in sugarcane AES. Through fertirrigation, the application of fertilizers can be simplified, and their distribution uniformity in sugarcane fields improved. This paper provides an overview of the state of the art regarding fertirrigation with multi-gate irrigation in sugarcane agroecosystems(AES). In order to systematize, organize, and discuss the scientific data on fertirrigation with low-pressure multi-gate irrigation systems in sugarcane AES, bibliographic material from the following full-text scientific journal databases was screened: the Elsevier Science Direct Freedom Collection, Springer Link, and the International Society for Horticultural Science. Next,a matrix of keywords was used to analyze the interrelationships among the available literature, current issues, and the recent *** conclude that development of fertirrigation technologies with low-pressure multi-gate irrigation is much needed.

关键词： climate change crop water requirement fertilizer application fertilizer distribution uniformity sugarcane industry water use efficiency

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Management of Grass and Broadleaf Weeds in Processing Potatoes (Solanum tuberosum L.) with Clomazone, in the Argentinian Pampas

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American Journal of Plant Sciences 2016年第16期7卷 2339-2348页

作者： Daniel Osmar Caldiz Carolina de Lasa pablo eugenio Bisio Global Agronomy R & D McCain Foods Limited San Isidro Argentina Field Department McCain Argentina SA Balcarce Argentina

Weed competition in the potato crop could cause up to a 95% yield reduction depending on the variety, the weed species and the competition period. In this work the effect of Clomazone (Command 36 CS®), when applied alone or in combination with Metribuzin (Sencorex® 48) upon grass and broad-leaved weeds was assessed. The work was carried out under the environmental conditions of the Argentinian Pampas, where close to 50% of the potatoes produced in the country are grown. The field trial was performed during the spring-summer crop, season 2008/09, with cv. Innovator, in a completely randomized design of the following treatments: (a) control, without weed control;(b) Clomazone 1.6 l·ha-1;(c) Clomazone 2.0 l·ha-1;(d) Clomazone 1 l·ha-1 + Metribuzin 0.75 l·ha-1;(e) Clomazone 1.6 l·ha-1 + Metribuzin 0.5 l·ha-1;and (f) Metribuzin 1.35 l·ha-1. Treatment effectiveness (TE), crop competition level (CCL) and weed suppression index (WSI) were assessed at 38, 53 and 72 days after planting (DAP), while yield and quality were also evaluated, following industry protocols. In those treatments were Clomazone was used alone, at 2 l·ha-1, or combined (Clomazone 1 l·ha-1 + Metribuzin 0.75 l·ha-1), a higher yield was observed. Besides, a high correlation between TE, WSI and tuber yield was also achieved. Clomazone improved TE, CCL and WSI, which was not only reflected in higher tuber yields, but also on better tuber quality.

关键词： Clomazone Weed Competition Potato Tuber Yield

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Retrospective Descriptive Analysis of the Combined First Trimester of Pregnancy Screening in the Period Included from February 2016 to March 2017, Maternal Fetal Medicine Unit, San Juan de Dios Hospital

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Open Journal of Obstetrics and Gynecology 2018年第10期8卷 891-899页

作者： Carina Breuning Velásquez Oscar Durán Soto Joaquin Bustillos Villavicencio Jorge Mora Sandí eugenio Calderon Veronica Saborio Leonardo Jimenez pablo Parra Hospital San Juan de Dios San José Costa Rica

A retrospective descriptive study is conducted at the San Juan de Dios Hospital, San José, Costa Rica, during the period from February 2016 to March 2017, with a total of 37 patients from which a combined screening during the first trimester of pregnancy was conducted, evaluating maternal age, biochemical and sonographic methods that together can predict the risk of fetal chromosomal alterations during pregnancy. The purpose of using combined screening as a noninvasive method is to identify high risk gestations and to minimize the number of invasive procedures to detect the highest number of cases. Four patients with higher risk of aneuploidy during pregnancy were identified through this screening.

关键词： Protocol Combined Screening First Trimester Aneuploidy Trisomy

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Spectrally resolved Hong-Ou-Mandel interferometry for quantum-optical coherence tomography

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Photonics Research 2020年第6期8卷 1023-1034页

作者： pablo YEPIZ-GRACIANO ALI MICHEL ANGULO MARTINEZ DORILIAN LOPEZ-MAGO HECTOR CRUZ-RAMIREZ ALFRED B.U'REN Instituto de Ciencias Nucleares Universidad Naciona/Autonoma de MexicoApdo.Postal 70-543Ciudad de Mexico 04510Mexico Tecnologico de Monterrey Escuela de Ingenieria y CienciasAve.Eugenio Garza Sada 2501MonterreyN.L.64849Mexico

In this paper,we revisit the well-known Hong_Ou-Mandel(HOM)effect in which two photons,which meet at a beamsplitter,can interfere destructively,leading to null in coincidence *** a standard HOM measurement,the coincidence counts across the two output ports of the beamsplitter are monitored as the temporal delay be-tween the two photons prior to the beamsplitter is varied,resulting in the well-known HOM *** show,both theoretically and experimentally,that by leaving the delay fixed at a particular value while relying on spectrally resolved coincidence photon counting,we can reconstruct the HOM dip,which would have been obtained through a standard delay-scanning,non-spectrally resolved HOM *** show that our numerical reconstruction procedure exhibits a novel dispersion cancellation effect,to all *** discuss how our present work can lead to a drastic reduction in the time required to acquire a HOM interferogram,and specifically discuss how this could be of particular importance for the implementation of fficient quantum optical coherence tomog-raphy devices.

关键词： resolved coincidence quantum

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Pulmonary vein stenosis:Etiology,diagnosis and management

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World Journal of Cardiology 2016年第1期8卷 81-88页

作者： pablo Pazos-López Cristina García-Rodríguez Alba Guitián-González Emilio Paredes-Galán María ángel De La Guarda álvarez-Moure Marta Rodríguez-álvarez José Antonio Baz-Alonso Elvis Teijeira-Fernández Francisco eugenio Calvo-Iglesias Andrés íniguez-Romo Department of Cardiology Complexo Hospitalario Universitario de Vigo Hospital álvaro Cunqueiro Department of Radiology Complexo Hospitalario Universitario de Vigo Hospital álvaro Cunqueiro Diagnostic Imaging Unit Galaria Empresa Pública de Servicios Sanitarios Hospital do Meixoeiro

Pulmonary vein stenosis(PVS) is rare condition characterized by a challenging diagnosis and unfavorable prognosis at advance stages. At present, injury from radiofrequency ablation for atrial fibrillation has become the main cause of the disease. PVS is characterized by a progressive lumen size reduction of one or more pulmonary veins that, when hemodynamically significant, may raise lobar capillary pressure leading to signs and symptoms such as shortness of breath, cough, and hemoptysis. Image techniques(transesophageal echocardiography, computed tomography, magnetic resonance and perfusion imaging) are essential to reach a final diagnosis and decide an appropriate therapy. In this regard, series from referral centers have shown that surgical and transcatheter interventions may improve prognosis. The purpose of this article is to review the etiology, assessment and management of PVS.

关键词： Pulmonary vein stenosis Pulmonary vein stenosis etiology Pulmonary vein stenosis causes Pulmonary vein stenosis diagnosis Pulmonary vein stenosis management Pulmonary vein stenosis treatment

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