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Mostrando ítems 41-50 de 72
Death From Drought In Tropical Forests Is Triggered By Hydraulics Not Carbon Starvation
(NATURE PUBLISHING GROUPLONDON, 2015)
Grazing intensity levels influence C reservoirs of wet and mesic meadows along a precipitation gradient in Northern Patagonia
(Springer, 2015-11)
Wet meadows are important ecosystems for forage production and as carbon reservoirs in semi-arid areas. In Patagonia, Argentina, large areas of wet meadows have been classified as overgrazed by livestock. The objective of ...
Desenvolvimento do feijoeiro sob o uso de biofertilizante e adubação mineral
(Associação Brasileira de Engenharia Agrícola (SBEA), 2011-02-01)
A produção intensiva de alimentos exige manejo adequado do solo para garantir a produtividade e a sustentabilidade ambiental. Uma das alternativas é a utilização de resíduos orgânicos no desenvolvimento das culturas, ...
Aquatic plant composition and environmental relationships in grazed Northwest Patagonian wetlands, Argentina
(Elsevier Science Inc, 2014)
Aquatic macrophyte assemblages and environmental features were assessed in 30 wetlands from North- west Patagonia subjected to different intensity of grazing pressure. Species richness was surveyed in wetlands from three ...
The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
(Wiley, 2009-05)
The phytogeographical region known as the Caldenal comprises an area of approximately 10 million ha in the central temperate part of Argentina (35–40° S, 62–66° W). The original physiognomy of the vegetation consisted of ...
Effects of topography and basins on seismic wave amplification: the Northern Chile coastal cliff and intramountainous basins
(Oxford, 2021)
During earthquakes, structural damage is often related to soil conditions. Following the 2014 April 1 M-w 8.1 Iquique earthquake in Northern Chile, damage to infrastructure was reported in the cities of Iquique and Alto ...
Consideraciones sobre el desarrollo agrario y el medio ambiente en las condiciones de Cuba
(Editora Geotech, 2009)
Antes de 1990 predominaban en la agricultura cubana los paquetes tecnológicos apoyados en la llamada revolución verde basados en variedades de alto rendimiento potencial, amplios suministros y aplicación de insumos, el ...
Increased hydraulic constraints in Eucalyptus plantations fertilized with potassium
(2021-01-01)
Fertilization is commonly used to increase growth in forest plantations, but it may also affect tree water relations and responses to drought. Here, we measured changes in biomass, transpiration, sapwood-to-leaf area ratio ...
Reappraising the multiple functions of traditional agriculture within the context of building rural development investigative skills
(Universidad Nacional de Colombia, Facultad de Agronomía, Centro Editorial, 2014-03-26)
The productivist and reductionist vision of industrial agriculture in the twentieth century prevented the analysis of the other multiple functions of traditional agriculture, such as those corresponding to the ecological ...