Results 41 to 50 of about 1,325,021 (311)

Seston Sedimentation in a Tropical Reservoir [PDF]

open access: yesLake and Reservoir Management, 1988
ABSTRACT Wet and dry season epilimnetic losses of particulate carbon, nitrogen, phosphorus, iron, and total suspended solids were determined for a small, mesotrophic reservoir in Lago Yure, Honduras. Measured particulate carbon, nitrogen, phosphorus, and iron losses varied between 364–1,621 mg/m2/day, 42–118 mg/m2/day, 4–16 mg/m2/day, and 54–349 mg/m2 ...
openaire   +1 more source

Phosphorus fractionation in sediments of tropical semiarid reservoirs

open access: yesScience of The Total Environment, 2018
The reduction of external loads of phosphorus (P) is the main action to control eutrophication in lakes. However, the elimination of these sources is not always sufficient for lakes' recovery, because the P accumulated in the sediment can be released for decades after it has accumulated.
Becker, Vanessa   +3 more
openaire   +3 more sources

Qualitative vulnerability of the waters of a surface reservoir subjected to drought in a tropical semi-arid region [PDF]

open access: yesRevista Ciência Agronômica, 2023
Irregular rainfall and the occurrence of droughts in tropical semi-arid regions have a negative impact on the quality and availability of water stored in reservoirs.
Janaina Castro de Mendonça   +5 more
doaj   +1 more source

O-3, NOY, AND NOX/NOY IN THE UPPER TROPOSPHERE OF THE EQUATORIAL PACIFIC [PDF]

open access: yes, 1995
No abstract ...
ANDERSON, B   +8 more
core   +2 more sources

Population Dynamics of Cyanomyovirus in a Tropical Eutrophic Reservoir

open access: yesMicrobes and environments, 2015
Samples from three stations in Kranji Reservoir, Singapore (n = 21) were collected and analyzed for cyanomyovirus abundance and diversity. A total of 73 different g20 (viral capsid assembly protein genes) amino acid sequences were obtained from this study.
Yeo, Bee Hui, Gin, Karina Yew-Hoong
openaire   +4 more sources

Seston fluxes in the dam of a Colombian tropical reservoir Fluxos de seston na barragem de um reservatório tropical Colombiano

open access: yesActa Limnologica Brasiliensia, 2010
AIM: Quantify sedimentation rates in Rio Grande II reservoir, his temporal fluctuation, and the degree of mineralization of the material that reaches the sediment; METHODS: A system of five sedimentation traps was used to evaluate temporal variability of
Yimmy Montoya Moreno, John Jairo Ramirez
doaj   +1 more source

Modelling the Inorganic Bromine Partitioning in the Tropical Tropopause over the Pacific Ocean [PDF]

open access: yes, 2016
The stratospheric inorganic bromine burden (Bry) arising from the degradation of brominated very short-lived organic substances (VSL org ), and its partitioning between reactive and reservoir species, is needed for a comprehensive assessment of the ozone
Atlas, Elliot   +13 more
core   +1 more source

Zooplankton communities as eutrophication bioindicators in tropical reservoirs [PDF]

open access: yesBiota Neotropica, 2014
Eutrophication is a process characterized by an increase in the aquatic system productivity, which causes profound changes in the structure of its communities. Owing to the high environmental sensitivity of planktonic species, the study of their communities can indicate the deterioration of the environment.
Gazonato Neto, Antonio José   +3 more
openaire   +3 more sources

Nutrient release from inundated land of a tropical reservoir (Nanhua Reservoir, Taiwan)

open access: yesWater Science and Technology, 1998
Nutrient release from land inundated by creation of a tropical reservoir (Nanhua Reservoir, Taiwan) is investigated. Both the magnitudes of nitrogen and phosphorus which might be released from inundated land are determined on the basis of measurements of biomass and nutrients content of terrestrial vegetation and the nutrients content of topsoil.
Ching-Gung Wen, Shui-Ping Chang
openaire   +2 more sources

Changes in cyanobacterial density due to application of Artificial Floating Island model with macrophytes: an experimental case study in a tropical reservoir

open access: yesJournal of Limnology, 2020
The Valle de Bravo (VB) reservoir is part of an important hydraulic system that provides about 40% of potable water to 21.5 million inhabitants of the Metropolitan Zone of Mexico City (Mexico).
Pedro Ramírez-García   +1 more
doaj   +1 more source

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