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104 results on '"Lencinas, María V."'

1. Response of forage production to drought in silvopastoral systems in Argentina

Author

Peri, Pablo L., Toledo, Santiago, Gándara, Luis, Trinco, Fabio, Atanasio, Marcos A., Calamari, Noelia C., Casaubon, Edgardo, Martínez, Natalia, Ledesma, Roxana, Gomez, Federico, Lara, Javier, Blanco, Lisandro, Carranza, Carlos, Von Müller, Axel, Varela, Santiago, Rossner, Belén, Lezana, Lucrecia, Lencinas, María V., Tarabini, Manuela, Maidana, Emilio, Pernochi, Lorena, Canavelli, Sonia B., Banegas, Natalia, Lertora, Raúl, Eclesia, Roxana P., Cuerda, Florencia, Ledesma, Marcela, Umaña, Fernando, Benítez, Julieta, Caballero, Enzo, Colcombet, Luis, Barzan, Flavia R., and Pastur, Guillermo Martínez

Published
2024
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6. Anthropogenic Impacts Allowed for the Invasion of Understory Species, Affecting the Sustainability of Management Practices in Southern Patagonia

Author

Rosas, Yamina Micaela, primary, Peri, Pablo Luis, additional, Cellini, Juan Manuel, additional, Lencinas, María V., additional, Kepfer Rojas, Sebastian, additional, Schmidt, Inger Kappel, additional, Pechar, Sebastián, additional, Barrera, Marcelo Daniel, additional, and Martínez Pastur, Guillermo J., additional

Published
2024
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7. Synergies and Trade-Offs of National Conservation Policy and Agro-Forestry Management Over Forest Loss in Argentina During the Last Decade

Author

Martínez Pastur, Guillermo J., Schlichter, Tomás, Matteucci, Silvia D., Gowda, Juan H., Huertas Herrera, Alejandro, Toro Manríquez, Mónica DR., Lencinas, María V., Cellini, Juan M., Peri, Pablo L., Correia Dantas, Eustógio W., Series Editor, Rabassa, Jorge, Series Editor, Sluyter, Andrew, Series Editor, and Lorenzo, Cristian, editor

Published
2020
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11. Nitrogenous and Phosphorus Soil Contents in Tierra del Fuego Forests: Relationships with Soil Organic Carbon, Climate, Vegetation and Landscape Metrics

Author

Martínez Pastur, Guillermo, primary, Aravena Acuña, Marie-Claire, additional, Chaves, Jimena E., additional, Cellini, Juan M., additional, Silveira, Eduarda M. O., additional, Rodriguez-Souilla, Julián, additional, von Müller, Axel, additional, La Manna, Ludmila, additional, Lencinas, María V., additional, and Peri, Pablo L., additional

Published
2023
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13. Silvopastoral Systems Under Native Forest in Patagonia Argentina

Author

Peri, Pablo L., Hansen, Nidia E., Bahamonde, Héctor A., Lencinas, María V., von Müller, Axel R., Ormaechea, Sebastián, Gargaglione, Verónica, Soler, Rosina, Tejera, Luis E., Lloyd, Carlos E., Pastur, Guillermo Martínez, Nair, P. K. Ramachandran, Series editor, Peri, Pablo Luis, editor, Dube, Francis, editor, and Varella, Alexandre, editor

Published
2016
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14. Synergies and Trade-Offs of National Conservation Policy and Agro-Forestry Management Over Forest Loss in Argentina During the Last Decade

Author

Martínez Pastur, Guillermo J., primary, Schlichter, Tomás, additional, Matteucci, Silvia D., additional, Gowda, Juan H., additional, Huertas Herrera, Alejandro, additional, Toro Manríquez, Mónica DR., additional, Lencinas, María V., additional, Cellini, Juan M., additional, and Peri, Pablo L., additional

Published
2019
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15. Respuesta del crecimiento radial a estrategias de raleo de largo plazo en bosques de Nothofagus pumilio de Tierra del Fuego

Author

Rodríguez-Souilla, Julián, Cellini, Juan M, Roig, Fidel A, Lencinas, María V, Chaves, Jimena E, Paredes, Dardo, Parodi, Martin, Favoretti, Santiago, Peri, Pablo L, and Martínez Pastur, Guillermo J

Subjects
raleos selectivos sistemáticos, dendrocronología, dendrochronology, Patagonia, secondary forests, selective and systematic cuttings, bosques secundarios
Abstract

New silvicultural proposals based on long-term trials are needed to develop forest management strategies. Radial growth response was the preferred proxy for managers to define thinning levels and best years for intervention. We analyzed long-term thinning strategies in secondary Nothofagus pumilio forests (55 years old) in Tierra del Fuego (Argentina) to determine and quantify the effect on radial growth. Samplings were conducted in a trial area established in 1965 where three interventions (17, 33 and 44 years after harvesting) with different thinning strategies were applied. We employed dendrochronological techniques to measure and co-date ring widths, comparing 19 different thinning strategies (n = 100 slices x 2 reading sections). Average ring width (RW), basal area increment (BAI), and periodic annual increment every five years (PAI5) were calculated and compared through univariate comparisons. Radial growth responses were directly related to thinning intensity; however, a differential response was found according to thinning strategy (e.g. selective and systematic cuttings) and always significantly higher than the control (3 vs. 1 mm year-1). The maximum growth occurred between 2 and 4 years after thinning (YAT), and progressively decreased until reaching pre-cutting levels (5 to 8 YAT). The analyses of the thinning strategies showed that initial systematic thinning followed by at least light thinning when growth rates recover their pre-intervention values is the most convenient combination of intermediate treatments for Nothofagus pumilio forests. These results can contribute to better silvicultural decision-making in secondary forests and provide information to analyze the feasibility of their implementation., Las propuestas silvícolas basadas en ensayos a largo plazo son necesarias para desarrollar estrategias de manejo forestal. La respuesta de crecimiento radial ha sido el proxy preferido por los gestores para definir los niveles de raleo y los años de intervención. Analizamos estrategias de raleo a largo plazo en bosques secundarios de Nothofagus pumilio (55 años) en Tierra del Fuego (Argentina) para determinar y cuantificar el efecto sobre el crecimiento radial. Los muestreos se realizaron en un área de ensayo establecido en 1965 donde se aplicaron tres intervenciones (17, 33 y 44 años después de la cosecha) con diferentes estrategias de raleo. Se emplearon técnicas dendrocronológicas, donde se midieron y co-fecharon anchos de anillos definiendo 19 estrategias de raleos diferentes (n = 100 rodajas x 2 secciones de lectura). Se calculó el ancho medio de los anillos (RW), el incremento del área basal (IAB) y el incremento periódico anual cada cinco años (PAI5), comparando valores mediante pruebas univariadas. Las respuestas de RW estuvieron relacionadas con la intensidad del raleo y se encontró una respuesta diferencial según la estrategia aplicada (por ejemplo, cortas selectivas y sistemáticas), siendo siempre significativamente mayor que el control (3 vs 1 mm año-1). El crecimiento máximo ocurrió entre 2 y 4 años después del raleo (ADR), y disminuyó hasta alcanzar los niveles previos a los raleos (5 a 8 ADR). Los análisis mostraron que una primera intervención sistemática seguida de al menos un raleo suave cuando las tasas de crecimiento recuperan los valores previos a la intervención, es la combinación de tratamientos intermedios más conveniente para los bosques de Nothofagus pumilio. Estos resultados pueden contribuir a una mejor toma de decisiones silvícolas en los bosques secundarios, proporcionando herramientas para analizar la viabilidad de su aplicación.

Published
2023

21. Mapping Soil Organic Carbon Content in Patagonian Forests Based on Climate, Topography and Vegetation Metrics from Satellite Imagery

Author

Martínez Pastur, Guillermo, primary, Aravena Acuña, Marie-Claire, additional, Silveira, Eduarda M. O., additional, Von Müller, Axel, additional, La Manna, Ludmila, additional, González-Polo, Marina, additional, Chaves, Jimena E., additional, Cellini, Juan M., additional, Lencinas, María V., additional, Radeloff, Volker C., additional, Pidgeon, Anna M., additional, and Peri, Pablo L., additional

Published
2022
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28. Radial growth response to long-term thinning strategies in Nothofagus pumilio forests of Tierra del Fuego.

Author

Rodríguez-Souilla, Julián, Cellini, Juan M., Roig, Fidel A., Lencinas, María V., Chaves, Jimena E., Paredes, Dardo, Parodi, Martin, Favoretti, Santiago, Peri, Pablo L., and Martínez Pastur, Guillermo J.

Subjects
NOTHOFAGUS, SECONDARY forests, FOREST management, HARVESTING
Abstract

Copyright of Bosque (03048799) is the property of Facultad de Ciencias Forestales, Universidad Austral de Chile and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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38. Diversidad de plantas vasculares en bosques continuos y relictuales de Nothofagus antárctica (Nothofagaceae) en Patagonia austral

Author

Vettese, Evangelina S., Orellana Ibáñez, Ivonne A., Lencinas, María V., Martínez Pastur, Guillermo, and Peri, Pablo L.

Subjects
anthropic uses, ecotone, gradientes ambientales, understory, sotobosque, usos antrópicos, biodiversity indeces, ecotono, environmental gradients, índices de biodiversidad
Abstract

Resumen: La historia de los bosques de Nothofagus antarctica (ñire, ñirre) está asociada a profundos disturbios geológicos y climáticos. A éstos se le suman los disturbios más recientes, que junto a los usos culturales de la tierra contribuyen a la fragmentación del hábitat. En el ecotono bosque- estepa, N. antarctica forma bosquetes insertos en una matriz de estepa llamados relictos. Éstos se encuentran separados de los bosques andinos que forman una masa boscosa continua. Con el fin de estudiar los patrones de diversidad de plantas vasculares comparativamente entre bosques relictuales (R) y sus bosques continuos aledaños (A), se relevaron cinco localidades de Santa Cruz. Éstas se ubican en un amplio gradiente latitudinal (47° 4’- 51° 5’ LS) y experimentan diferentes historias de uso. Los componentes alfa y beta de la diversidad fueron relacionados a otras variables ambientales mediante un análisis multivariado de redundancia (RDA). Un total de 152 especies fue registrado. La diversidad alfa se evaluó mediante el índice Shannon-Wiener (H’) y no hubo diferencias significativas (p = 0,585) entre los ambientes A y R. Sin embargo, el índice H’ varió significativamente entre localidades (p

Published
2019

43. The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

Author

Hudson, Lawrence N., primary, Newbold, Tim, additional, Contu, Sara, additional, Hill, Samantha L. L., additional, Lysenko, Igor, additional, De Palma, Adriana, additional, Phillips, Helen R. P., additional, Alhusseini, Tamera I., additional, Bedford, Felicity E., additional, Bennett, Dominic J., additional, Booth, Hollie, additional, Burton, Victoria J., additional, Chng, Charlotte W. T., additional, Choimes, Argyrios, additional, Correia, David L. P., additional, Day, Julie, additional, Echeverría‐Londoño, Susy, additional, Emerson, Susan R., additional, Gao, Di, additional, Garon, Morgan, additional, Harrison, Michelle L. K., additional, Ingram, Daniel J., additional, Jung, Martin, additional, Kemp, Victoria, additional, Kirkpatrick, Lucinda, additional, Martin, Callum D., additional, Pan, Yuan, additional, Pask‐Hale, Gwilym D., additional, Pynegar, Edwin L., additional, Robinson, Alexandra N., additional, Sanchez‐Ortiz, Katia, additional, Senior, Rebecca A., additional, Simmons, Benno I., additional, White, Hannah J., additional, Zhang, Hanbin, additional, Aben, Job, additional, Abrahamczyk, Stefan, additional, Adum, Gilbert B., additional, Aguilar‐Barquero, Virginia, additional, Aizen, Marcelo A., additional, Albertos, Belén, additional, Alcala, E. L., additional, del Mar Alguacil, Maria, additional, Alignier, Audrey, additional, Ancrenaz, Marc, additional, Andersen, Alan N., additional, Arbeláez‐Cortés, Enrique, additional, Armbrecht, Inge, additional, Arroyo‐Rodríguez, Víctor, additional, Aumann, Tom, additional, Axmacher, Jan C., additional, Azhar, Badrul, additional, Azpiroz, Adrián B., additional, Baeten, Lander, additional, Bakayoko, Adama, additional, Báldi, András, additional, Banks, John E., additional, Baral, Sharad K., additional, Barlow, Jos, additional, Barratt, Barbara I. P., additional, Barrico, Lurdes, additional, Bartolommei, Paola, additional, Barton, Diane M., additional, Basset, Yves, additional, Batáry, Péter, additional, Bates, Adam J., additional, Baur, Bruno, additional, Bayne, Erin M., additional, Beja, Pedro, additional, Benedick, Suzan, additional, Berg, Åke, additional, Bernard, Henry, additional, Berry, Nicholas J., additional, Bhatt, Dinesh, additional, Bicknell, Jake E., additional, Bihn, Jochen H., additional, Blake, Robin J., additional, Bobo, Kadiri S., additional, Bóçon, Roberto, additional, Boekhout, Teun, additional, Böhning‐Gaese, Katrin, additional, Bonham, Kevin J., additional, Borges, Paulo A. V., additional, Borges, Sérgio H., additional, Boutin, Céline, additional, Bouyer, Jérémy, additional, Bragagnolo, Cibele, additional, Brandt, Jodi S., additional, Brearley, Francis Q., additional, Brito, Isabel, additional, Bros, Vicenç, additional, Brunet, Jörg, additional, Buczkowski, Grzegorz, additional, Buddle, Christopher M., additional, Bugter, Rob, additional, Buscardo, Erika, additional, Buse, Jörn, additional, Cabra‐García, Jimmy, additional, Cáceres, Nilton C., additional, Cagle, Nicolette L., additional, Calviño‐Cancela, María, additional, Cameron, Sydney A., additional, Cancello, Eliana M., additional, Caparrós, Rut, additional, Cardoso, Pedro, additional, Carpenter, Dan, additional, Carrijo, Tiago F., additional, Carvalho, Anelena L., additional, Cassano, Camila R., additional, Castro, Helena, additional, Castro‐Luna, Alejandro A., additional, Rolando, Cerda B., additional, Cerezo, Alexis, additional, Chapman, Kim Alan, additional, Chauvat, Matthieu, additional, Christensen, Morten, additional, Clarke, Francis M., additional, Cleary, Daniel F.R., additional, Colombo, Giorgio, additional, Connop, Stuart P., additional, Craig, Michael D., additional, Cruz‐López, Leopoldo, additional, Cunningham, Saul A., additional, D'Aniello, Biagio, additional, D'Cruze, Neil, additional, da Silva, Pedro Giovâni, additional, Dallimer, Martin, additional, Danquah, Emmanuel, additional, Darvill, Ben, additional, Dauber, Jens, additional, Davis, Adrian L. V., additional, Dawson, Jeff, additional, de Sassi, Claudio, additional, de Thoisy, Benoit, additional, Deheuvels, Olivier, additional, Dejean, Alain, additional, Devineau, Jean‐Louis, additional, Diekötter, Tim, additional, Dolia, Jignasu V., additional, Domínguez, Erwin, additional, Dominguez‐Haydar, Yamileth, additional, Dorn, Silvia, additional, Draper, Isabel, additional, Dreber, Niels, additional, Dumont, Bertrand, additional, Dures, Simon G., additional, Dynesius, Mats, additional, Edenius, Lars, additional, Eggleton, Paul, additional, Eigenbrod, Felix, additional, Elek, Zoltán, additional, Entling, Martin H., additional, Esler, Karen J., additional, de Lima, Ricardo F., additional, Faruk, Aisyah, additional, Farwig, Nina, additional, Fayle, Tom M., additional, Felicioli, Antonio, additional, Felton, Annika M., additional, Fensham, Roderick J., additional, Fernandez, Ignacio C., additional, Ferreira, Catarina C., additional, Ficetola, Gentile F., additional, Fiera, Cristina, additional, Filgueiras, Bruno K. C., additional, Fırıncıoğlu, Hüseyin K., additional, Flaspohler, David, additional, Floren, Andreas, additional, Fonte, Steven J., additional, Fournier, Anne, additional, Fowler, Robert E., additional, Franzén, Markus, additional, Fraser, Lauchlan H., additional, Fredriksson, Gabriella M., additional, Freire, Geraldo B., additional, Frizzo, Tiago L. M., additional, Fukuda, Daisuke, additional, Furlani, Dario, additional, Gaigher, René, additional, Ganzhorn, Jörg U., additional, García, Karla P., additional, Garcia‐R, Juan C., additional, Garden, Jenni G., additional, Garilleti, Ricardo, additional, Ge, Bao‐Ming, additional, Gendreau‐Berthiaume, Benoit, additional, Gerard, Philippa J., additional, Gheler‐Costa, Carla, additional, Gilbert, Benjamin, additional, Giordani, Paolo, additional, Giordano, Simonetta, additional, Golodets, Carly, additional, Gomes, Laurens G. L., additional, Gould, Rachelle K., additional, Goulson, Dave, additional, Gove, Aaron D., additional, Granjon, Laurent, additional, Grass, Ingo, additional, Gray, Claudia L., additional, Grogan, James, additional, Gu, Weibin, additional, Guardiola, Moisès, additional, Gunawardene, Nihara R., additional, Gutierrez, Alvaro G., additional, Gutiérrez‐Lamus, Doris L., additional, Haarmeyer, Daniela H., additional, Hanley, Mick E., additional, Hanson, Thor, additional, Hashim, Nor R., additional, Hassan, Shombe N., additional, Hatfield, Richard G., additional, Hawes, Joseph E., additional, Hayward, Matt W., additional, Hébert, Christian, additional, Helden, Alvin J., additional, Henden, John‐André, additional, Henschel, Philipp, additional, Hernández, Lionel, additional, Herrera, James P., additional, Herrmann, Farina, additional, Herzog, Felix, additional, Higuera‐Diaz, Diego, additional, Hilje, Branko, additional, Höfer, Hubert, additional, Hoffmann, Anke, additional, Horgan, Finbarr G., additional, Hornung, Elisabeth, additional, Horváth, Roland, additional, Hylander, Kristoffer, additional, Isaacs‐Cubides, Paola, additional, Ishida, Hiroaki, additional, Ishitani, Masahiro, additional, Jacobs, Carmen T., additional, Jaramillo, Víctor J., additional, Jauker, Birgit, additional, Hernández, F. Jiménez, additional, Johnson, McKenzie F., additional, Jolli, Virat, additional, Jonsell, Mats, additional, Juliani, S. Nur, additional, Jung, Thomas S., additional, Kapoor, Vena, additional, Kappes, Heike, additional, Kati, Vassiliki, additional, Katovai, Eric, additional, Kellner, Klaus, additional, Kessler, Michael, additional, Kirby, Kathryn R., additional, Kittle, Andrew M., additional, Knight, Mairi E., additional, Knop, Eva, additional, Kohler, Florian, additional, Koivula, Matti, additional, Kolb, Annette, additional, Kone, Mouhamadou, additional, Kőrösi, Ádám, additional, Krauss, Jochen, additional, Kumar, Ajith, additional, Kumar, Raman, additional, Kurz, David J., additional, Kutt, Alex S., additional, Lachat, Thibault, additional, Lantschner, Victoria, additional, Lara, Francisco, additional, Lasky, Jesse R., additional, Latta, Steven C., additional, Laurance, William F., additional, Lavelle, Patrick, additional, Le Féon, Violette, additional, LeBuhn, Gretchen, additional, Légaré, Jean‐Philippe, additional, Lehouck, Valérie, additional, Lencinas, María V., additional, Lentini, Pia E., additional, Letcher, Susan G., additional, Li, Qi, additional, Litchwark, Simon A., additional, Littlewood, Nick A., additional, Liu, Yunhui, additional, Lo‐Man‐Hung, Nancy, additional, López‐Quintero, Carlos A., additional, Louhaichi, Mounir, additional, Lövei, Gabor L., additional, Lucas‐Borja, Manuel Esteban, additional, Luja, Victor H., additional, Luskin, Matthew S., additional, MacSwiney G, M Cristina, additional, Maeto, Kaoru, additional, Magura, Tibor, additional, Mallari, Neil Aldrin, additional, Malone, Louise A., additional, Malonza, Patrick K., additional, Malumbres‐Olarte, Jagoba, additional, Mandujano, Salvador, additional, Måren, Inger E., additional, Marin‐Spiotta, Erika, additional, Marsh, Charles J., additional, Marshall, E. J. P., additional, Martínez, Eliana, additional, Martínez Pastur, Guillermo, additional, Moreno Mateos, David, additional, Mayfield, Margaret M., additional, Mazimpaka, Vicente, additional, McCarthy, Jennifer L., additional, McCarthy, Kyle P., additional, McFrederick, Quinn S., additional, McNamara, Sean, additional, Medina, Nagore G., additional, Medina, Rafael, additional, Mena, Jose L., additional, Mico, Estefania, additional, Mikusinski, Grzegorz, additional, Milder, Jeffrey C., additional, Miller, James R., additional, Miranda‐Esquivel, Daniel R., additional, Moir, Melinda L., additional, Morales, Carolina L., additional, Muchane, Mary N., additional, Muchane, Muchai, additional, Mudri‐Stojnic, Sonja, additional, Munira, A. Nur, additional, Muoñz‐Alonso, Antonio, additional, Munyekenye, B. F., additional, Naidoo, Robin, additional, Naithani, A., additional, Nakagawa, Michiko, additional, Nakamura, Akihiro, additional, Nakashima, Yoshihiro, additional, Naoe, Shoji, additional, Nates‐Parra, Guiomar, additional, Navarrete Gutierrez, Dario A., additional, Navarro‐Iriarte, Luis, additional, Ndang'ang'a, Paul K., additional, Neuschulz, Eike L., additional, Ngai, Jacqueline T., additional, Nicolas, Violaine, additional, Nilsson, Sven G., additional, Noreika, Norbertas, additional, Norfolk, Olivia, additional, Noriega, Jorge Ari, additional, Norton, David A., additional, Nöske, Nicole M., additional, Nowakowski, A. Justin, additional, Numa, Catherine, additional, O'Dea, Niall, additional, O'Farrell, Patrick J., additional, Oduro, William, additional, Oertli, Sabine, additional, Ofori‐Boateng, Caleb, additional, Oke, Christopher Omamoke, additional, Oostra, Vicencio, additional, Osgathorpe, Lynne M., additional, Otavo, Samuel Eduardo, additional, Page, Navendu V., additional, Paritsis, Juan, additional, Parra‐H, Alejandro, additional, Parry, Luke, additional, Pe'er, Guy, additional, Pearman, Peter B., additional, Pelegrin, Nicolás, additional, Pélissier, Raphaël, additional, Peres, Carlos A., additional, Peri, Pablo L., additional, Persson, Anna S., additional, Petanidou, Theodora, additional, Peters, Marcell K., additional, Pethiyagoda, Rohan S., additional, Phalan, Ben, additional, Philips, T. Keith, additional, Pillsbury, Finn C., additional, Pincheira‐Ulbrich, Jimmy, additional, Pineda, Eduardo, additional, Pino, Joan, additional, Pizarro‐Araya, Jaime, additional, Plumptre, A. J., additional, Poggio, Santiago L., additional, Politi, Natalia, additional, Pons, Pere, additional, Poveda, Katja, additional, Power, Eileen F., additional, Presley, Steven J., additional, Proença, Vânia, additional, Quaranta, Marino, additional, Quintero, Carolina, additional, Rader, Romina, additional, Ramesh, B. R., additional, Ramirez‐Pinilla, Martha P., additional, Ranganathan, Jai, additional, Rasmussen, Claus, additional, Redpath‐Downing, Nicola A., additional, Reid, J. Leighton, additional, Reis, Yana T., additional, Rey Benayas, José M., additional, Rey‐Velasco, Juan Carlos, additional, Reynolds, Chevonne, additional, Ribeiro, Danilo Bandini, additional, Richards, Miriam H., additional, Richardson, Barbara A., additional, Richardson, Michael J., additional, Ríos, Rodrigo Macip, additional, Robinson, Richard, additional, Robles, Carolina A., additional, Römbke, Jörg, additional, Romero‐Duque, Luz Piedad, additional, Rös, Matthias, additional, Rosselli, Loreta, additional, Rossiter, Stephen J., additional, Roth, Dana S., additional, Roulston, T'ai H., additional, Rousseau, Laurent, additional, Rubio, André V., additional, Ruel, Jean‐Claude, additional, Sadler, Jonathan P., additional, Sáfián, Szabolcs, additional, Saldaña‐Vázquez, Romeo A., additional, Sam, Katerina, additional, Samnegård, Ulrika, additional, Santana, Joana, additional, Santos, Xavier, additional, Savage, Jade, additional, Schellhorn, Nancy A., additional, Schilthuizen, Menno, additional, Schmiedel, Ute, additional, Schmitt, Christine B., additional, Schon, Nicole L., additional, Schüepp, Christof, additional, Schumann, Katharina, additional, Schweiger, Oliver, additional, Scott, Dawn M., additional, Scott, Kenneth A., additional, Sedlock, Jodi L., additional, Seefeldt, Steven S., additional, Shahabuddin, Ghazala, additional, Shannon, Graeme, additional, Sheil, Douglas, additional, Sheldon, Frederick H., additional, Shochat, Eyal, additional, Siebert, Stefan J., additional, Silva, Fernando A. B., additional, Simonetti, Javier A., additional, Slade, Eleanor M., additional, Smith, Jo, additional, Smith‐Pardo, Allan H., additional, Sodhi, Navjot S., additional, Somarriba, Eduardo J., additional, Sosa, Ramón A., additional, Soto Quiroga, Grimaldo, additional, St‐Laurent, Martin‐Hugues, additional, Starzomski, Brian M., additional, Stefanescu, Constanti, additional, Steffan‐Dewenter, Ingolf, additional, Stouffer, Philip C., additional, Stout, Jane C., additional, Strauch, Ayron M., additional, Struebig, Matthew J., additional, Su, Zhimin, additional, Suarez‐Rubio, Marcela, additional, Sugiura, Shinji, additional, Summerville, Keith S., additional, Sung, Yik‐Hei, additional, Sutrisno, Hari, additional, Svenning, Jens‐Christian, additional, Teder, Tiit, additional, Threlfall, Caragh G., additional, Tiitsaar, Anu, additional, Todd, Jacqui H., additional, Tonietto, Rebecca K., additional, Torre, Ignasi, additional, Tóthmérész, Béla, additional, Tscharntke, Teja, additional, Turner, Edgar C., additional, Tylianakis, Jason M., additional, Uehara‐Prado, Marcio, additional, Urbina‐Cardona, Nicolas, additional, Vallan, Denis, additional, Vanbergen, Adam J., additional, Vasconcelos, Heraldo L., additional, Vassilev, Kiril, additional, Verboven, Hans A. F., additional, Verdasca, Maria João, additional, Verdú, José R., additional, Vergara, Carlos H., additional, Vergara, Pablo M., additional, Verhulst, Jort, additional, Virgilio, Massimiliano, additional, Vu, Lien Van, additional, Waite, Edward M., additional, Walker, Tony R., additional, Wang, Hua‐Feng, additional, Wang, Yanping, additional, Watling, James I., additional, Weller, Britta, additional, Wells, Konstans, additional, Westphal, Catrin, additional, Wiafe, Edward D., additional, Williams, Christopher D., additional, Willig, Michael R., additional, Woinarski, John C. Z., additional, Wolf, Jan H. D., additional, Wolters, Volkmar, additional, Woodcock, Ben A., additional, Wu, Jihua, additional, Wunderle, Joseph M., additional, Yamaura, Yuichi, additional, Yoshikura, Satoko, additional, Yu, Douglas W., additional, Zaitsev, Andrey S., additional, Zeidler, Juliane, additional, Zou, Fasheng, additional, Collen, Ben, additional, Ewers, Rob M., additional, Mace, Georgina M., additional, Purves, Drew W., additional, Scharlemann, Jörn P. W., additional, and Purvis, Andy, additional

Published
2016
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44. Carbon pool dynamics after variable retention harvesting in Nothofagus pumilioforests of Tierra del Fuego

Author

Chaves, Jimena E., Aravena Acuña, Marie-Claire, Rodríguez-Souilla, Julián, Cellini, Juan M., Rappa, Nolan J., Lencinas, María V., Peri, Pablo L., and Martínez Pastur, Guillermo J.

Abstract

Background: It is necessary to determine the implications for managing forest stands using variable retention harvesting for maintaining carbon and for calculating the effects of different harvesting practices on above- and below-ground carbon balance in forest ecosystems. In this context, forest carbon management has gained more attention among managers and policy-makers during recent years. The aim of this study was to determine carbon pool dynamics in different forest ecosystem components after variable retention harvesting (VRH) to characterize the ecological stability and quantify the recovery rate through the years-after-harvesting (YAH). Methods: Carbon pool compartmentalization of 14 different components was determined in 60 harvested and primary unmanaged forests during the first 18 YAH in Tierra del Fuego (Argentina). We compared them using uni- and multi-variate methods, relativizing the outputs with primary unmanaged forests. Results: We determined the effectiveness to retain carbon components in post-harvested stands under different retention strategies (aggregated vs. dispersed). The balance among carbon pool components changed between managed and unmanaged stands across the YAH, and was directly related to the impact magnitude. Aggregated retention improved the ecological stability of the harvested areas, where the below-ground components were more stable than the above-ground components. The recovery rate was directly related to the post-harvesting natural dynamics of the stands. The studied period was not enough to fully recover the C levels of primary unmanaged forests, but VRH showed advantages to increase the C pools in the managed stands. Conclusions: Promoting VRH can improve sustainable forestry at the landscape level and in the long term, generating positive synergies with biodiversity and the provision of ecosystem services. This study provides important new insights into forest carbon management, in particular to setting standards in carbon projects and sets the groundwork for analysing the economics of the mentioned harvesting systems.

Published
2023
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46. Plasticidad ecofisiológica de plántulas de Nothofagus pumilio frente a combinaciones de niveles de luz y humedad en el suelo

Author

Martínez Pastur, Guillermo J., Lencinas, María V., Esteban, Rosina Soler, Ivancich, Horacio, Peri, Pablo L., Moretto, Alicia, Hernández, Luis, and Lindstrom, Ivone

Subjects
histology, nutrientes, photosynthesis, nutrients, manejo forestal, regeneration, morfología, morphology, forest management, regeneración, histología, Ciencias Agrícolas, fotosíntesis
Abstract

Las propuestas silvícolas para el manejo de los bosques de Nothofagus pumilio se basan sobre la apertura del canopeo para estimular el crecimiento de la regeneración natural; de esta manera se incrementa la disponibilidad de luz y humedad del suelo a nivel del sotobosque. El crecimiento de las plántulas estará en relación a la plasticidad frente a estas nuevas condiciones del rodal. Es por ello, que el objetivo fue analizar los cambios morfológicos y ecofi siológicos de plántulas creciendo en condiciones controladas bajo dos niveles de humedad del suelo, a lo largo de un gradiente de intensidad lumínica. Se trasplantaron plántulas de 2-3 años de bosques primarios durante el mes de septiembre del año 2005 y se colocaron en invernáculo bajo dos condiciones de humedad del suelo (40-60% y 80-100% de la capacidad de campo) y tres niveles de intensidad lumínica (4%, 26% y 64% de luz incidente natural). Durante el mes de enero de 2006 se midieron variables morfológicas (altura, número, tamaño y forma de las hojas, número de ramas, área foliar, densidad de raíces, biomasa en compartimentos e histología de hojas) y ecofi siológicas (fotosíntesis, respiración, contenido de pigmentos, contenido relativo de agua en hojas, conductancia estomática, contenido de nutrientes y potencial agua de los brotes apicales). Se realizaron análisis de varianza simples para evaluar las respuestas a los niveles de humedad del suelo en cada nivel de intensidad lumínica, así como análisis multivariados para analizar la interacción entre factores. Las plántulas tuvieron mejores crecimientos en los menores niveles de humedad (40-60% de la capacidad de campo). La respuesta del crecimiento a distintos niveles de humedad del suelo dependió de la disponibilidad de luz, donde niveles medios de intensidad lumínica generaron los mejores crecimientos. Niveles altos de luminosidad resultaron negativos para el crecimiento de las plántulas. En este trabajo se pudieron poner en evidencia cambios en las variables anatómicas, de composición química y de relaciones hídricas, manifestando una alta plasticidad para sobrevivir a diferentes condiciones de humedad del suelo e intensidades lumínicas. Estos resultados pueden contribuir a proponer mejores prácticas silvícolas que optimicen la supervivencia y el crecimiento de las plántulas luego del aprovechamiento forestal. Proposed silviculture for Nothofagus pumilio forests are based on the canopy open to stimulate natural regeneration growth through the increasing of soil moisture and light availability at the understory level. Seedlings growth will be related to the plasticity for these new stand conditions. For this, the objective was to analyze morphological and ecophysiological changes of seedlings growing in controlled conditions under two soil moisture levels along a light intensity gradient. Two to three years-old seedlings were obtained from one old-growth forests during September 2005, and were transplanted into plastic pots in a greenhouse under two soil moisture levels (40-60% and 80-100% soil capacity) and three light intensities (4%, 26% and 64% natural incident irradiance). Morphological (height, number, size and shape of the leaves, number of branches, foliar area, root density, biomass compartments and leaf histology) and ecophysiological (photosynthesis, respiration, pigment content, relative water content in leaves, stomata conductance, nutrient content and water potential of apical shoots) variables were measured during January 2006. One-way ANOVAs was conducted to evaluate changes according to soil moisture levels for each light intensity level, as well as multivariate analyses to evaluate interactions among factors. Seedlings showed best growth performances under a low soil moisture level (40-60% soil capacity). Growing response to the different soil moisture levels was related to light availability, where a middle light level presented the best growth rates. High light levels produced negative results for seedling growth. In this work, evidences suggested that changes in the anatomical variables, chemical composition and water status relations, allowing to a high plasticity to survive under different conditions of soil moisture and light intensities. These results can be used to suggest better silviculture proposals to improve seedling growth after harvesting.

Published
2011

49. Response of nothofagus betuloides (mirb.) oersted to different thinning intensities in tierra del fuego, argentina

Author

Martínez Pastur, Guillermo J., Juan Manuel Cellini, Lencinas, María V., Vukasovic, Ricardo F., Peri, Pablo L., and Sergio Donoso

Subjects
Nothofagus betuloides, CIENCIAS AGRÍCOLAS, Forest Dynamics, purl.org/becyt/ford/4.1 [https], Patagonia, Silvicultura, Agricultura, Silvicultura y Pesca, Forest Management, Silviculture, purl.org/becyt/ford/4 [https]
Abstract

El sector forestal de Argentina y Chile se ha desarrollado principalmente sobre la base del cultivo de especies exóticas, ocupando el bosque nativo un lugar secundario en la definición de políticas de investigación y desarrollo. Los bosques de Nothofagus conforman la totalidad del recurso maderero para los aserraderos en Tierra del Fuego. Existen numerosas propuestas de manejo mediante la aplicación de tratamientos intermedios y de ensayos de raleo, pero muy pocas en N. betuloides. Los objetivos de este trabajo fueron determinar el crecimiento y la dinámica forestal de un rodal joven, y evaluar las respuestas del crecimiento a tres niveles de raleo, comparándolas con las de un rodal no intervenido a lo largo de seis años. El rodal sin intervención de 46 años de edad tuvo un incremento diamétrico de 0,1 a 0,2cm/año, un incremento volumétrico de 6,3m³/ha·año y un autoraleo natural de 350 árboles/año. Este bosque respondió favorablemente a la aplicación de distintos niveles de raleo. El incremento en diámetro alcanzó los 0,52cm/año en el tratamiento más intenso (2000 individuos/ha), disminuyendo en proporción a medida que la intensidad del raleo decreció (0,37cm/año y 0,31cm/año para los tratamientos de 3500 individuos/ha y 5000 individuos/ha). En contraposición, la menor intensidad de raleo presentó los mayores incrementos volumétricos (13,6m³/ha·año) comparados con la mayor intensidad (9,5m³/ha·año). Nothofagus betuloides es una especie con un gran potencial para ser incorporada dentro de un manejo forestal intensivo, por los crecimientos que presenta y la respuesta a los tratamientos intermedios. Forestry in Argentina and Chile has been largely developed based on the culture of exotic species, while native species occupied a second place in the national forest policies of research and development. Nothofagus forests are the main wood resource for the sawmill industry in Tierra del Fuego. Many antecedents of intermediate treatment schedules and thinning trials have been reported, but few of them are in N. betuloides. The aim of the present work was to determine the growth and forest dynamics of a young stand, and evaluate the growth responses to three thinning levels, comparing them with an unthinned stand along six years. The 46 year old unthinned stand had a DBH increment of 0.1 to 0.2cm/yr, a volumetric increment of 6.3m³/ha·yr and a natural self-thinning of 350 trees/yr. This stand responded positively to different thinning levels. The DBH increment reached 0.52cm/yr in the high thinning intensity treatment (2000 stems/ha), diminishing in proportion when the thinning intensity decreased (0.37cm/yr and 0.31cm/yr for treatments of 3500 stems/ha and 5000 stems/ha). Less intensive thinning treatment showed the highest volume growth (13.6m³/ha·yr) as compared with the higher intensity (9.5 m³/ha·yr). From the obtained growth and the behavior of the species to intensive silvicultural treatments, Nothofagus betuloides is a species of high potentiality in order to be incorporated within a forest intensive management. O setor florestal da Argentina e Chile tem-se desenvolvido principalmente sobre a base do cultivo de espécies exóticas, ocupando, o bosque nativo, um lugar secundário na definição de políticas de investigação e desenvolvimento. Os bosques de Nothofagus conformam a totalidade do recurso madereiro para as serrarias em Tierra del Fuego. Existem numerosas propostas de direção mediante a aplicação de tratamentos intermédios e de ensaios de raleo, mas muito poucos em N. betuloides. Os objetivos deste trabalho foram determinar o crescimento e a dinâmica florestal de um rodal jovem, e avaliar as respostas do crescimento a três níveis de raleo, comparando-as com as de un rodal não interditado ao longo de seis anos. O rodal sem intervenção de 46 anos de idade teve um incremento diamétrico de 0,1 a 0,2cm/ano, um incremento volumétrico de 6,3m³/ha·ano e um autoraleo natural de 350 árvores/ano. Este bosque respondeu favoravelmente à aplicação de diferentes níveis de raleo. O incremento em diâmetro alcançou os 0,52cm/ano no tratamento mais intenso (2000 individuos/ha), diminuindo em proporção a medida que a intensidade do raleo decresceu (0,37cm/ano e 0,31cm/ano para os tratamentos de 3500 indivíduos/ha e 5000 indivíduos/ha). Em contraposição, a menor intensidade de raleo apresentou os maiores incrementos volumétricos (13,6m³/ha·ano) comparados com a maior intensidade (9,5m³/ha·ano). Nothofagus betuloides é uma espécie com um grande potencial para ser incorporada dentro de uma direção florestal intensiva, pelos crescimentos que apresenta e a resposta aos tratamentos intermédios. Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Cellini, Juan Manuel. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vukasovič, Ricardo. Universidad Nacional de La Plata; Argentina Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina Fil: Donoso, Sergio. Universidad de Chile; Chile

Published
2002

50. Changes in growing pattern and stem quality due to high intensity thinning in a stand of Nothofagus pumilio in initial growing development phase

Author

Martínez Pastur, Guillermo, Cellini, Juan M., Lencinas, María V., Vukasovic, Ricardo, Vicente, Ramiro, Bertolami, Facundo, and Giunchi, Jorge

Abstract

Nothofagus pumilio (Poepp. et Endl.) Krasser es la especie forestal nativa de mayor importancia en la Patagonia. Existen varios propuestas y ensayos silvícolas para la especie, pero ninguno de ellos se basa en observaciones a largo plazo. El objetivo de este trabajo fue analizar la evolución en incremento y calidad de fustes de un rodal en fase de crecimiento óptimo inicial bajo manejo silvícola en un bosque de calidad de sitio medio-alta en Tierra del Fuego (Argentina). Las intervenciones silvícolas tempranas permitieron duplicar los incrementos en diámetro (0.23 a 0.45 cm/año) y elevar los incrementos volumétricos por hectárea (hasta 12.7 m³.ha-1.año-1). Sin embargo, la calidad de las plantas se vio fuertemente disminuida. Al momento de la intervención se dejaron árboles de excelente porte forestal, pero al cabo de 14 años la calidad de los mismos disminuyó hasta llegar a un 17% de individuos de buen porte. Este tipo de intervenciones no se debe llevar a cabo sin la realización de podas en las primeras etapas de crecimiento del rodal. Nothofagus pumilio es una especie de alto potencial productivo, con características adecuadas como para poder ser incorporada dentro de un manejo forestal intensivo, cuya propuesta es discutida y analizada. Nothofagus pumilio (Poepp. et Endl.) Krasser is the most important forest native species in Patagonia. There are many assays and silvicultural schedules for the species, but any of them are based on long-term data. The aim of the present study was to analyze the development (increment and tree quality) of a stand in its initial growth phase under silvicultural management in a forest on a site of medium-high quality in Tierra del Fuego (Argentina). Early silvicultural cuts allowed us to double the diameter increment (0.23 to 0.45 cm/year) and to elevate the volumetric increment of the stand by 50%. However, tree quality was strongly diminished. After thinning, only trees with good stem quality remained, but 14 years later good-quality trees represented only 17% of individuals. The pruning is required alongside thinning during the first stages of stand growth. Nothofagus pumilio is a species with great potential productivity, and with desirable characteristics to incorporate it in an intensive forest management program, which is analyzed and discussed.

Published
2001

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