Results 11 to 20 of about 504 (165)

Remote Sensing Assessment of Paspalum quadrifarium Grasslands in the Flooding Pampa, Argentina [PDF]

Rangeland Ecology & Management, 2005
Abstract The knowledge of the distribution, area, and current conservation status of relict natural grasslands dominated by the tall-tussock grass Paspalum quadrifarium Lam. (“pajonal”) in the Flooding Pampa (Argentina) is relevant for the identification of conservation sites and sustainable management and land-use planning.
Lorena P. Herrera, Vanina Gómez Hermida, Gustavo A. Martínez, Pedro Laterra, Néstor Maceira   +4 more
core   +5 more sources

Depressive and anxiety symptoms after the 2024 flooding in Rio Grande do Sul, Brazil: findings of the PAMPA cohort [PDF]

Cadernos de Saúde Pública
The 2024 flooding in Rio Grande do Sul, Brazil, was the worst natural disaster in the history of the state. We aimed to examine the impact of flooding on individuals’ lives and depressive and anxiety symptoms among residents of Rio Grande do Sul.
Natan Feter, Natália Schröeder, Felipe Delpino, Luísa da Silva, Eduardo Caputo, Isabel Paz, Juliana Rocha, Jayne Feter, Yohana Vieira, Marcelo da Silva, Felipe Reichert, Airton Rombaldi   +11 more
doaj   +3 more sources

Soil water regime of grassland communities along subtle topographic gradient in the Flooding Pampa (Argentina) [PDF]

Soil and Water Research, 2016
Three plant communities positioned along a subtle topographic gradient, referred to as upland, intermediate, and lowland positions, characterize the landscape of the Flooding Pampa grasslands of Argentina.
Carla E. DI BELLA, Gustavo G. STRIKER, Juan LORETI, Diego J. COSENTINO, Agustín A. GRIMOLDI   +4 more
doaj   +2 more sources

Mycorrhizal Colonization Patterns under Contrasting Grazing and Topographic Conditions in the Flooding Pampa (Argentina) [PDF]

Journal of Range Management, 2004
Arbuscular mycorrhizae (AM) can ameliorate the impact of disturbance on agroecosystem sustainability. The objective of this study was to describe mycorrhizal colonization patterns in contrasting grazing situations (exclosure and continuous grazing) and topographical positions (upland and lowland) in the flooding pampa (Argentina).
Gonzalo Grigera, Martín Oesterheld
openaire   +3 more sources

Late Summer Intensive Grazing, an Alternative to Herbicide Application in Rangelands of the Flooding Pampa

Rangeland Ecology & Management
The Flooding Pampa harbors grasslands of high conservation value and provides grazing ground for extensive livestock production in uplands while lowlands are less productive. The Aboveground Net Primary Productivity (ANPP) of cool-season C3 grasses limits livestock production in this region.
Joaquín Asad, Kevin Van Sundert, Ana V. Eljall Qüesta, Pablo Preliasco, Josefina L. De Paepe   +4 more
core   +5 more sources

Grazing-induced changes in plant composition affect litter quality and nutrient cycling in flooding Pampa grasslands [PDF]

Oecologia, 2007
Changes in plant community composition induced by vertebrate grazers have been found to either accelerate or slow C and nutrient cycling in soil. This variation may reflect the differential effects of grazing-promoted (G+) plant species on overall litter quality and decomposition processes. Further, site conditions associated with prior grazing history
Garibaldi, Lucas Alejandro, Semmartin, María, Chaneton, Enrique J.   +2 more
openaire   +4 more sources

Riesgo de anegamiento: estimaciones para la Cuenca Baja del Río Salado Flooding risk in the Salado River Basin

Ciencia del Suelo, 2009
Está documentado que de 1986 al 2001 se incrementó en un 69% el área cultivada en sectores de la Pampa Deprimida, y que el avance agrícola se realizó sobre tierras que cíclicamente fueron afectadas por excesos de agua (anegamiento o inundación).
Pablo Mauricio Vázquez, Fabián Néstor Cabria, María Del Carmen Rojas, Mirta Beatriz Calandroni   +3 more
doaj   +1 more source

Grazing Effects of the Bulk Density in a Natraquoll of the Flooding Pampa of Argentina [PDF]

Journal of Range Management, 1988
The influence of grazing by cattle on soil bulk density was studied in a typic Natraquoll of the Flooding Pampa of Argentina for a period of 33 months, by comparing a grazed situation to an enclosure deferred from grazing for 7 years.
Miguel A. Taboada, Raul S. Lavado
openaire   +2 more sources

Imperfect Vertical Transmission of the Endophyte Neotyphodium in Exotic Grasses in Grasslands of the Flooding Pampa [PDF]

Microbial Ecology, 2008
Cool-season grasses establish symbioses with vertically transmitted Neotyphodium endophytes widespread in nature. The frequency of endophyte-infected plants in closed populations (i.e., without migrations) depends on both the differential fitness between infected and non-infected plants, and the endophyte-transmission efficiency. Most studies have been
Gundel, Pedro E., Garibaldi, Lucas Alejandro, Tognetti, Pedro M., Aragón, Roxana, Ghersa, Claudio M., Omacini, Marina   +5 more
openaire   +4 more sources

Land-Use and Land Cover Dynamics in South American Temperate Grasslands

Ecology and Society, 2008
In the Río de la Plata grasslands (RPG) biogeographical region of South America, agricultural activities have undergone important changes during the last 15-18 years because of technological improvements and new national and international market ...
Germán Baldi, José M. Paruelo
doaj   +1 more source