scholarly journals Soybean Productivity and Agrometeorological Variables Assessed from the perspective of Spatial and Circular Statistics

2021 ◽  
Vol 9 (3) ◽  
pp. 303
Author(s):  
Edilza Martins da Silva ◽  
Priscila Pigatto Gasparin ◽  
Alex Paludo ◽  
Willyan Ronaldo Becker ◽  
Luciana Pagliosa Carvalho Guedes ◽  
...  

Climate change can affect the development of soybean cultivation, impacting your productivity. Thus, agrometeorological information is essential in order to improve productivity strategies. The objective of the paper was to analyze the influence and occurrence of seasonality of the following agrometeorological variables on soybean productivity: mean air temperature [TMean] (ºC), accumulated rainfall value [Rain] (mm), global solar radiation [Sr] (MJ m-2 day-1), and potential evapotranspiration [ETp] (mm), in ten-day variations of the the maximum vegetative development date (MVDD), in the 2011/2012 and 2013/2014 harvest years in the state of Paraná. The study was based on spatial distribution of variables, using univariate and bivariate Global Moran’s Indexes, and multivariate clustering analysis. To verify seasonality in the time distribution of the agrometeorological variables in the ten-day variations close to soybean MVDD, we used the circular statistics, through the mean vector length (R). Result it was identified regions of the state that have higher and lower rainfall and seasonality, also have higher and lowest productivity, respectively. That the variation in soybean productivity between harvest years was correlated with the agrometeorological variables, and rainfall volume is an important factor in productivity. The other agrometeorological variables occurred uniformly, especially in 2011/2012 harvest year, in the Northwest, Central-northern and West mesoregions. Furthermore, there was clustering of regions with similar spatial distribution of the evapotranspiration and rainfall variables in 2aDMDV2d in the 2011/2012 and 2013/2014 harvest year, showed the same spatial distribution of the agrometeorological variables and the productivity variable.

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0205253 ◽  
Author(s):  
Sheila Cristina Rocha-Brischiliari ◽  
Luciano Andrade ◽  
Oscar Kenji Nihei ◽  
Adriano Brischiliari ◽  
Michele dos Santos Hortelan ◽  
...  

2014 ◽  
Vol 48 (4) ◽  
pp. 662-670 ◽  
Author(s):  
Ioná Carreno ◽  
Ana Lúcia de Lourenzi Bonilha ◽  
Juvenal Soares Dias da Costa

OBJECTIVE To analyze the temporal evolution of maternal mortality and its spatial distribution.METHODS Ecological study with a sample made up of 845 maternal deaths in women between 10 and 49 years, registered from 1999 to 2008 in the state of Rio Grande do Sul, Southern Brazil. Data were obtained from Information System on Mortality of Ministry of Health. The maternal mortality ratio and the specific maternal mortality ratio were calculated from records, and analyzed by the Poisson regression model. In the spatial distribution, three maps of the state were built with the rates in the geographical macro-regions, in 1999, 2003, and 2008.RESULTS There was an increase of 2.0% in the period of ten years (95%CI 1.00;1.04; p = 0.01), with no significant change in the magnitude of the maternal mortality ratio. The Serra macro-region presented the highest maternal mortality ratio (1.15, 95%CI 1.08;1.21; p < 0.001). Most deaths in Rio Grande do Sul were of white women over 40 years, with a lower level of education. The time of delivery/abortion and postpartum are times of increased maternal risk, with a greater negative impact of direct causes such as hypertension and bleeding.CONCLUSIONS The lack of improvement in maternal mortality ratio indicates that public policies had no impact on women’s reproductive and maternal health. It is needed to qualify the attention to women’s health, especially in the prenatal period, seeking to identify and prevent risk factors, as a strategy of reducing maternal death.


2017 ◽  
Vol 39 (2) ◽  
pp. 341
Author(s):  
Abraão Martins Terceiro

The work deals with the theme artisanal fisheries and has as main objective, the characterization of the activity in the municipalities of Tramandaí and Imbé, located in the State of Rio Grande do Sul, the spatial distribution and the challenges to occur fisheries in this region. The research is justified by the large number of fishermen in the study area and the economic importance of the activity, mapping through popular knowledge areas of greatest value for fishing, the main existing species and the main features and instruments used in fish capture.


2017 ◽  
Vol 50 (6) ◽  
pp. 769-776 ◽  
Author(s):  
Larissa Leão Ferrer de Sousa ◽  
Carlos Henrique Morais de Alencar ◽  
Alzira Maria Paiva de Almeida ◽  
Luciano Pamplona de Góes Cavalcanti

2019 ◽  
Vol 4 ◽  
pp. e00094
Author(s):  
Prince Junior Asilevi ◽  
Emmanuel Quansah ◽  
Leonard Kofitse Amekudzi ◽  
Thompson Annor ◽  
Nana Ama Browne Klutse

2017 ◽  
Vol 14 (28) ◽  
pp. 59
Author(s):  
Arkley Marques Bandeira

Resumo: O artigo aborda as pesquisas realizadas na porção sul do Maranhão, precisamente no município de Tasso Fragoso, em que se está consolidando um conhecimento arqueológico inédito para essa região do estado desde 2008, no âmbito de um projeto de turismo sustentável fomentado pelo Sebrae – MA – Unidade de Balsas, além de outras pesquisas realizadas mais recentemente. A ênfase do trabalho relaciona-se ao universo empírico dos sítios rupestres, principalmente quanto a sua distribuição espacial, inserção na paisagem, suporte rochoso e composição figurativa. Além disso, especial atenção é dada à correlação desses sítios com outros elementos da cultura material, principalmente com os vestígios arqueológicos depositados em superfície.Abstract:The article analyzes the research carried out in the southern portion of Maranhão, precisely in the municipality of Tasso Fragoso, where an unprecedented archaeological knowledge for this region of the State has been consolidated since 2008, within the scope of a sustainable tourism project fomented by Sebrae - MA – Unit at Balsas, in addition to other more recent surveys. The emphasis of the work is related to the empirical universe of rock art sites, mainly regarding its spatial distribution, insertion in the landscape, rocky support and figurative composition. In addition, special attention was given to the correlation of these sites with other elements of the material culture, mainly with the archeological vestiges deposited in surface.


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