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Mostrando ítems 71-80 de 1943
Effect of fluctuations in water level on phytoplankton development in three lakes of the Paraná river floodplain (Argentina)
(Springer, 2003-12)
The effect of fluctuations in water level on phytoplankton development (abundance, biomass, size structure, taxonomic composition, species diversity and rate of community compositional change) in three vegetated lakes of ...
Multiproxy studies of Early Miocene pedogenic calcretes in the Santa Cruz Formation of southern Patagonia, Argentina indicate the existence of a temperate warm vegetation adapted to a fluctuating water table
(Elsevier Science, 2018-07)
The Lower Miocene Santa Cruz Formation in southern Patagonia (Austral Basin, Argentina) contains several horizons of pedogenic calcretes, which record −17.5 myr old vegetation adapted to a shallow and fluctuating water ...
A regional water balance indicator inferred from satellite images of an Andean endorheic basin in central-western Argentina
(Iahs Press, 2017-03)
In the Central Andes of Argentina (30–37°S), snowmelt is the main source of freshwater, an essential natural resource for ~2.2 million people in the adjacent arid lowlands. In this region, Laguna Llancanelo collects the ...
Response of eichhornia crassipes (pontederiaceae) to water level fluctuations in two lakes with different connectivity in the Paraná river floodplain
(Universidad de Costa Rica, 2008-06)
Floodplain lakes are especially dynamic due to the irregular flow regime of the Paraná River and its
location along the geomorphologic gradient between the lakes and the river. The response of Eichhornia cras sipes (Mart.) ...
Electronic and Magnetic Changes in a Finite-Sized Single-Walled Zigzag Carbon Nanotube Embedded in Water
(American Chemical Society, 2013-01)
In vacuum an open-ended finite-sized zigzag and hydrogen atom terminated carbon nanotube (FS-CNT) has a ground state with antiferromagnetic configuration, and the α and β gaps are degenerated with a magnitude inversely ...
Shallow groundwater dynamics in the Pampas: Climate, landscape and crop choice effects
(Elsevier Science, 2016-01)
Depending on its depth from the soil surface, shallow groundwater can represent a valuable water resource to alleviate droughts, or a stress agent that causes waterlogging and flooding in rainfed crops. Groundwater depth ...
Physiological responses to hypoxia and Manganese in Eucalyptus clones with differential tolerance to Vale do Rio Doce shoot dieback
(Revista Brasileira de Ciência do Solo, 2018)
Coaxial cross-diffusion through carbon nantoubes
(American Chemical Society, 2009-12)
We present results from nonequilibrium molecular dynamics experiments describing the relaxation of local concentrations at two reservoirs, initially filled with water (W) and acetonitrile (ACN), as they become connected ...
Zooplankton fluctuations in Jurumirim Reservoir (São Paulo, Brazil): a three-year study
(Instituto Internacional de Ecologia, 2009)
During three consecutive years, monthly samples of zooplankton were taken in the lacustrine (dam) zone of Jurumirim (São Paulo, Brazil). The seasonal effect on basic limnological features (thermal regime, oxygen distribution, ...