scholarly journals MAXIMUM FLOW STUDY BY THE HYDROGRAM METHOD FOR A WATERSHED IN THE SOUTH OF SANTA CATARINA, BRAZIL

2021 ◽  
Vol 15 (2) ◽  
pp. 01
Author(s):  
Amarfelina Fernandes de Oliveira De Aguiar ◽  
Álvaro José Back ◽  
Maria Angeles Lobo Recio ◽  
Cláudia Weber Conseuil
2013 ◽  
Vol 31 (4) ◽  
pp. 893-902 ◽  
Author(s):  
C.E. Schaedler ◽  
J.A. Noldin ◽  
D.S. Eberhardt ◽  
D. Agostinetto ◽  
N.R. Burgos

ALS-inhibiting herbicides usually provide adequate weed control in irrigated rice fields. After consecutive years of use, the Cyperaceae species, globe fringerush (Fimbristylis miliacea) began to show resistance to ALS (acetolactate synthase) inhibitors. Globe fringerush is one of the most problematic herbicide-resistant weeds in irrigated rice in the state of Santa Catarina in the South of Brazil. The objective of this research was to examine cross resistance of globe fringerush to ALS inhibitors, under field conditions. Two experiments were conducted in a rice field naturally infested with ALS-resistant globe fringerush in Santa Catarina, in the 2008/09 and 2009/10 cropping seasons. The experimental units were arranged in randomized complete block design, with five replicates, consisting of two factors (herbicide and dose) in a 4 x 5 factorial arrangement. ALS herbicides included bispyribac-sodium, ethoxysulfuron, pyrazosulfuron-ethyl and penoxsulam. Six-leaf globe fringerush was sprayed with herbicide doses of 0, 0.5, 1, 2 and 4X the recommended doses in a spray volume of 200 L ha-1. The number of rice culm, filled and sterile grains, plant height, dry shoot biomass and grain yield were recorded. Globe fringerush control was evaluated 28 and 70 days after herbicide application (DAA); shoots were harvested at 13 weeks after herbicide application and dry weight recorded. Competition with globe fringerush reduced the number of culm and rice grain yield. The globe fringerush biotype in this field was resistant to all ALS herbicides tested. Penoxsulam had the highest level of activity among treatments at 28 and 70 DAA, but the control level was only 50% and 42%, respectively, in the second year of assessment. This was not enough to prevent rice yield loss. Alternative herbicides and weed control strategies are necessary to avoid yield losses in rice fields infested with ALS-resistant biotypes of globe fringerush.


2013 ◽  
Vol 43 (5) ◽  
pp. 878-883
Author(s):  
Jader Silva Lopes ◽  
Paulo Roberto Nogara Rorato ◽  
Tomás Weber ◽  
Ronyere Olegário de Araújo ◽  
Dionéia Magda Everling ◽  
...  

The objective of this study was to evaluate the genetic divergence among Nellore breed animals raised in 45 farms in the Southern Region of Brazil. The characteristic studied was weaning weight adjusted to 205 days of life (P205), from 10,874 animals sired by 425 bulls and 7,629 cows, collected between 1976 and 2001, and distributed in the states of Rio Grande do Sul (1,499), Santa Catarina (2,332) and Paraná (7,043). The animals were distributed by cluster analysis in eight genetic divergent groups, enabling this technique to be applied to organize the matings in order to obtain heterotic effect. The herd/farm groups were formed through the hierarchical Ward method, using the direct (VGD) and maternal (VGM) breeding values predicted by the REML method. The VGD of the animal accounted for 90% of the differences among herds, and the remaining 10% was attributed to differences in the VGM. On average, the P205 for the animals from inter-group mating was 1.4kg higher than those from intra-group mating, representing 2.4% of heterosis.


2008 ◽  
Vol 02 (02) ◽  
pp. 133-155 ◽  
Author(s):  
J. J. WIJETUNGE ◽  
XIAOMING WANG ◽  
PHILIP L.-F. LIU

The 2004 Indian Ocean tsunami caused enormous loss of lives and damage to property in Sri Lanka and in several other countries bordering the Indian Ocean. One way of mitigating potential loss of lives from a similar event in the future is through early warning and quick evacuation of vulnerable coastal communities to safer areas, and such evacuation planning is usually carried out based on inundation maps. Accordingly, the present paper outlines the numerical modelling carried out to develop tsunami inundation maps on a grid of 10 m resolution for three cities on the south coast of Sri Lanka. The results give the tsunami arrival time contours and the spatial distribution of the extent of inundation, the maximum flow velocities as well as the hydrodynamic force in these three cities due to an event similar to the 2004 tsunami.


Check List ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 2022
Author(s):  
Larissa Zanette-Silva ◽  
Douglas Lemos Farias ◽  
Ivo Rohling Ghizoni-Jr

Aparasphenodon bokermanni is a poorly known casque-headed tree frog found in São Paulo and Santa Catarina, southern Brazil. Here we provide two new records, one from Joinville, northeastern Santa Catarina, and the first record from Santa Catarina Island, Brazil, which extends to the south the range of the genus by approximately 150 km.


2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Agung Riyadi ◽  
Nusa Idaman Said ◽  
Matih Santos

This paper describes some of the general condition of the oceanographic parameters in the Strait Matak, Anambas Archipelago. The data flow is obtained by direct measurement by using a current meter types RCM-7. Simulation models using Mike 21. Mike flow pattern is divided into two seasons, namely west season (January) and the east season (August) and flow patterns ahead of the tide when the season is generally moving west to wards the south, it demonstrates the role of strong tidal influence the movement of waterin the study area. Flow velocity in the strait just before the tide on the west season reaches 1m/s.  Flow patterns at high tide on the west season looks still moving toward sthe south. The maximum flow velocity in the strait when the tide reaches 0.32 m/s, while the average speed in the area of the model is 0.12 m/s. Low tide towards the current pattern is still moving towards the south, it reinforces the notion that in addition to tidal windsare also very significant role in moving the flow, in this case that the current is moving toward the south. Flow velocity just before low tide reaches 0.85 m/s. Flow patterns at low tide shows the differences in the three previous conditions, the current in the strait to move out to the north toward the South China Sea. In condition slow tide, the tida lmore dominantly than the wind, this proved to even though the wind toward the south, the currents inthestraitis moving toward snorth along the tidal flow leading to the South China Sea. Flow velocity is quite varied location of modeling; flow velocity at low tide reaches 0.5m/s, with the average 0.15 m/s. Keywords: current and direction, wind, tide, model.


2014 ◽  
Vol 47 (3) ◽  
pp. 327-333 ◽  
Author(s):  
Roberta Juliano Ramos ◽  
Letícia Adélia Miotto ◽  
Marília Miotto ◽  
Nelson Silveira Junior ◽  
Andréia Cirolini ◽  
...  

2011 ◽  
Vol 11 (3) ◽  
pp. 189-196 ◽  
Author(s):  
Hélio Augusto Alves Fracasso ◽  
Joaquim Olinto Branco ◽  
Edison Barbieri

Despite being widely distributed in South America and having relatively large populations, little is known about the trophic ecology of the South American Tern (Sterna hirundinacea) and Cabot's Tern (Thalasseus acuflavidus). In Brazil, South American and Terns Cabot's breed in mixed colonies from the state of Espírito Santo to Santa Catarina. Here, we describe results of a study of the feeding ecology of these two species during the reproductive seasons of April to October of 2003, 2005 and 2006 from Cardos Island, Santa Catarina, Brazil. A total of 6248, 5140, and 4006 fishes were delivered to chicks or females by South American Terns; and 1157, 628 and 98 fish and or other prey items by Cabot's Terns during the breeding seasons of 2003, 2005, and 2006, respectively. Prey items identified included eight, seven and nine fish families for South American Terns; and, five, three and two families for Cabot's terns, in the three respective years. The number of food deliveries per chick for South American Terns was between 09:00 and 10:00 am in 2006, and between 11:00 and 12:00 am in 2005. Cabot's Terns chicks were fed in the early hours of the morning until late afternoon.


2017 ◽  
Vol 32 (2) ◽  
pp. 90-96
Author(s):  
Manoela Cássia Budni da Silva ◽  
Leticia Burato Wessler ◽  
Kristian Madeira ◽  
Caroline Calice da Silva

2019 ◽  
Vol 34 (1) ◽  
pp. 11
Author(s):  
Hérom Silva de Cezaro ◽  
Juliano Bitencourt Campos ◽  
Marcos César Pereira Santos ◽  
Pedro Ignácio Schmitz

Objetivo deste artigo é apresentar o registro, mapeamento e análise das técnicas e tipologias contidas na ocorrência arqueológica denominada como Malacara I. Essa ocorrência de Arte Pré-histórica se caracteriza como um bloco de Basalto a céu aberto, em contexto fluvial, com gravuras geométricas realizadas com diferentes técnicas: picoteado, inciso e polimento. A pertinência da pesquisa pesa principalmente na divulgação para a comunidade científica das características técnicas inéditas inerentes as gravuras rupestres que compõem a ocorrência arqueológica. Outra questão em aberto é sobre a possibilidade de as mesmas serem resultados de ações naturais. Essa pesquisa está inserida na problemática arqueológica do Brasil Meridional, onde sítios com arte rupestre apresentam diversificados tipos geométricos sem clara definição tecno-tipológica e cultural. Assim, neste artigo buscamos dar visibilidade a composição, e técnicas de confecção e sua relação com as tradições rupestres descritas para o Sul do Brasil e inseridas na problemática de pesquisa do projeto Arqueologia Entre Rios: do Urussanga ao Mampituba, (AERUM). THE OCCURRENCE OF PRE-HISTORICAL ART MALACARA I: Technical and Typological Considerations ABSTRACTThe objective of this article is to present the registration, mapping and analysis of the techniques and typologies contained in the archaeological occurrence denominated as Malacara I. This occurrence of Prehistoric Art is characterized as a basalt block in the open, in river context, with geometric engravings performed with different techniques: pecking, incision and polishing. The pertinence of the research weighs mainly in the dissemination to the scientific community of the unpublished technical characteristics inherent to the rock engravings that compose the archaeological occurrence. Another open question is about the possibility that they are the results of natural actions. This research is inserted in the archaeological problematic of Southern Brazil, where sites with rock art present diverse geometric types without clear tecno-typological definition and culture Thus, in this article we seek to give visibility to the composition and techniques of confection and its relation with the rock traditions described for the South of Brazil and inserted in the problem of research of the Project Arqueologia Entre Rios: do Urussanga ao Mampituba, (AERUM).Keywords: Rock Art; Extreme South of Santa Catarina; Canyons.  


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