Buscar
Mostrando ítems 11-20 de 627
Persistent organic pollutants (POPs) in coastal wetlands: A review of their occurrences, toxic effects, and biogeochemical cycling
(Pergamon-Elsevier Science Ltd, 2021-11)
Coastal wetlands, such as mangroves, seagrass beds, and salt marshes, are highlythreatened by increasing anthropic pressures, including chemical pollution. Persistentorganic pollutants (POPs) have attracted attention in ...
Reservoir and contaminated sediments impacts in high-Andean environments: Morphodynamic interactions with biogeochemical processes
(2014)
Rapid changes due to anthropic interventions in high-altitude environments, such as the Altiplano
region in South America, require new approaches to understand the connections between
physical and biogeochemical processes. ...
Whether in life or in death: fresh perspectives on how plants affect biogeochemical cycling
(Wiley, 2015-11)
1. Plants have numerous impacts on biogeochemical cycling across both aquatic and terrestrial ecosystems. These effects extend well beyond the critical role of carbon (C) fixation through photosynthesis that provides the ...
Spatial variability of biogeochemistry in shallow coastal benthic communities of Potter Cove (Antarctica) and the impact of a melting glacier
(Public Library of Science, 2018-12)
Measurements of biogeochemical fluxes at the sediment–water interface are essential to investigate organic matter mineralization processes but are rarely performed in shallow coastal areas of the Antarctic. We investigated ...
Old-growth temperate rain forests of South America: Conservation, plant-animal interactions, and baseline biogeochemical processes
(Wirth, ChristianEcological Studies Series of the Springer Verlag., 2008)
A structural and compositional definition of old-growth forest is presented, which places emphasis on the lack of recurrent human impact, the presence of a shade-tolerant canopy with emergent pioneers, and a patch area ...
Old-Growth Temperate Rainforests of South America: Conservation, Plant–Animal Interactions, and Baseline Biogeochemical Processes
(Wirth et al.Springer Verlag Berlin-Heidelberg, 2009)
A structural and compositional definition of old-growth forest is presented, which places emphasis on the lack of recurrent human impact, the presence of a shade-tolerant canopy with emergent pioneers, and a patch area ...
Photo-Fenton approach for the determination of organic nitrogen in rainwater
(2018-10-01)
The importance of taking the organic forms of nitrogen (ON) into account when estimating atmospheric nitrogen deposition has been known for a long time. However, there is still only a modest amount of data on organic ...
The need to unmask lurking false friends: sustainability is a state, not a process!
(Associação Brasileira de Ciência Ecológica e Conservação, 2013-07)
Monjeau (2010, p. 117) concluded that “a possible way out from conservation crossroads might consist in being able to distinguish friends from dangerous enemies” and that conservation in Latin America is “full of Trojan ...
Ecological processes and biogeochemical cycling in salt marshes: synthesis of studies in the Bahía Blanca estuary (Argentina)
(Springer, 2016-07)
Here we offer an integrative review of biogeochemical cycling of carbon, nitrogen, phosphorus, and several metals in salt marshes of the Bahía Blanca Estuary, located in South America, which is a region underrepresented ...