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Mostrando ítems 21-31 de 31

    • Modeling soil nitrogen content in South Patagonia across a climate gradient, vegetation type, and grazing 

      Peri, Pablo Luis; Rosas, Yamina Micaela; Ladd, Brenton; Toledo, Santiago; Lasagno, Romina Gisele; Martínez Pastur, Guillermo José (MDPI, 2019-05)
      Soil total nitrogen (N) stock in rangelands, shrublands, and forests support key ecological functions such as the capacity of the land to sustain plant and animal productivity and ecosystem services. The objective of this ...

    • Nitrogen but not phosphorus addition affects symbiotic N2 fixation by legumes in natural and semi‑natural grasslands located on four continents 

      Vázquez, Eduardo; Schleuss, Per‑Marten; Borer, Elizabeth T.; Bugalho, Miguel N.; Caldeira, Maria. C.; Eisenhauer, Nico; Eskelinen, Anu; Fay, Philip A.; Haider, Sylvia; Jentsch, Anke; Kirkman, Kevin P.; McCulley, Rebecca L.; Peri, Pablo Luis; Price, Jodi; Richards, Anna E.; Risch, Anita C.; Roscher, Christiane; Schütz, Martin; Seabloom, Eric William; Standish, Rachel J.; Stevens, Carly J.; Tedder, Michelle J.; Virtanen, Risto; Spohn, Marie (Springer Nature, 2022-09)
      The amount of nitrogen (N) derived from symbiotic N2 fixation by legumes in grasslands might be affected by anthropogenic N and phosphorus (P) inputs, but the underlying mechanisms are not known. Methods We evaluated ...

    • Nutrient enrichment increases invertebrate herbivory and pathogen damage in grasslands 

      Ebeling, Anne; Strauss, Alex T.; Adler, Peter B.; Arnillas, Carlos Alberto; Barrio, Isabel C.; Biederman, Lori A.; Borer, Elizabeth T.; Bugalho, Miguel N.; Caldeira, Maria C.; Cadotte, Marc W.; Peri, Pablo Luis; Blumenthal, Dana M. (British Ecological Society, 2022-02)
      1- Plant damage by invertebrate herbivores and pathogens influences the dynamics of grassland ecosystems, but anthropogenic changes in nitrogen and phosphorus availability can modify these relationships. 2- Using a globally ...

    • Orchargrass: a valuable perennial pasture grass adapted to different environmental conditions. 

      Peri, Pablo Luis (NOVA Science Publishers, 2012)
      Orchardgrass is a widespread perennial grass, which is well-adapted to dry conditions and is suitable for silvopastoral systems due to its shade tolerance. The main environmental (temperature, nitrogen, water and shade) ...

    • Photosynthetic response to different light intensities, water status and leaf age of two Berberis species (Berberidaceae) of Patagonia steppe, Argentina. 

      Peri, Pablo Luis; Arena, Miriam Elizabeth; Martínez Pastur, Guillermo José; Lencinas, María Vanessa (Elsevier, 2011-11)
      Net photosynthetic rate (A) and stomatal conductance (gs) from leaves of Berberis buxifolia and Berberis heterophylla saplings were measured under different conditions of radiation and water availability and for leaves of ...

    • Precipitation is the key determinant of topsoil δ15N values in southern Patagonia’s semiarid rangelands 

      Peri, Pablo Luis; Duarte Guardia, Sandra; Amelung, Wulf; Ladd, Brenton (American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2022-02-11)
      Nitrogen (N) cycling in rangeland soils could potentially be controlled by water supply, stocking rates, or a range of other variables, such as ecosystem N stocks. To gauge the relative importance and elucidate possible ...

    • Rangeland grazing management in Argentine Patagonia 

      Bjerring, Anna Trier; Peri, Pablo Luis; Christiansen, Rodolfo; Vargas-Bello-Pérez, Einar; Hansen, Hanne Helene (IJAB. Friends science publishers, 2020-08-31)
      Stocking rate adjustment in grazing management is recommended as a management tool to sustain productivity and improve soil health of permanent grassland ecosystems. The aim of this project was to assess the effect of ...

    • Respuesta de la producción de forraje a la sequía en sistemas silvopastoriles de Argentina = Response of forage production to drought in silvopastoral systems in Argentina 

      Peri, Pablo Luis; Toledo, Santiago; Gandara, Luis; Trinco, Fabio Daniel; Atanasio, Marcos Antonio; Calamari, Noelia Cecilia; Casaubon, Edgardo; Martinez, Natalia; Ledesma, Roxana Ramona; Gomez, Federico Antonio; Lara, Javier Eduardo; Blanco, Lisandro Javier; Carranza, Carlos; Von Müller, Axel; Varela, Santiago Agustin; Rossner, Maria Belen; Lezana, Lucrecia; Lencinas, María Vanessa; Tarabini, Manuela; Maidana, Carlos Emilio; Pernochi, Lorena Soledad; Canavelli, Sonia Beatriz; Banegas, Natalia Romina; Lertora, Raul Dario; Eclesia, Roxana Paola; Ledesma, Marcela; Umaña, Fernando; Benitez, Julieta; Caballero, Enzo Fabián; Colcombet, Luis; Barzan, Flavia Romina; Martínez Pastur, Guillermo José (CIPAV, 2023-10-15)
      En el contexto de un aumento en la frecuencia e intensidad de sequías agrícolas y ecológicas debido al cambio climático, evaluamos la respuesta de la producción de forraje anual (PFA) a la sequía en 22 sitios con sistemas ...

    • Silvopastoral use of Nothofagus antarctica in Southern Patagonian forests, influence over net nitrogen soil mineralization 

      Bahamonde, Héctor Alejandro; Peri, Pablo Luis; Alvarez, Roberto; Barneix, Atilio Jose; Moretto, Alicia Susana; Martínez Pastur, Guillermo José (2013-04)
      In most temperate forest, nitrogen (N) is considered a limiting factor. This becomes important in extreme environments, as Nothofagus antarctica forests, where the antecedents are scarce. Thinning practices in N. antarctica ...

    • The positive effect of plant diversity on soil carbon depends on climate 

      Spohn, Marie; Bagchi, Sumanta; Biederman, Lori A.; Borer, Elizabeth T.; Bråthen, Kari Anne; Bugalho, Miguel N.; Caldeira, Maria C.; Catford, Jane A.; Collins, Scott L.; Eisenhauer, Nico; Peri, Pablo Luis; Yahdjian, Laura (Springer Nature, 2023-10-19)
      Little is currently known about how climate modulates the relationship between plant diversity and soil organic carbon and the mechanisms involved. Yet, this knowledge is of crucial importance in times of climate change ...

    • Variación en la composición botánica de un sistema silvopastoril de Nothofagus antarctica tras la aplicación de tratamientos de fertilización y riego 

      Gargaglione, Veronica Beatriz; Peri, Pablo Luis (Ediciones INTA, 2015-05-07)
      Los bosques de Nothofagus antarctica en Patagonia Sur son utilizados mayoritariamente como sistemas silvopastoriles (SSP) y se ha generado información en cuanto a diversos aspectos ecológicos y de manejo. Sin embargo, es ...