Bacharelado em Agronomia (UAST)

URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2927

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Aspectos do crescimento da Baraúna (Schinopsis brasiliensis Engel.), em diferentes contextos de intervenções antrópicas, na comunidade da Mata Redonda em Triunfo – PE.
(2022-05-27) Santos, Natália Alves; Barros Júnior, Genival; http://lattes.cnpq.br/4379675294862211; http://lattes.cnpq.br/4530134000429562
The Caatinga vegetation has a very peculiar characteristic, which makes it unique and, unfortunately, due to anthropic actions, a considerable portion of this biome is in extinction and another portion is threatened with extinction. Among the endangered plant species is the Baraúna (Schinopsis brasiliensis Engl.), one of the most important trees in the Caatinga, considered a noble tree due to the characteristics present in its wood. Given this situation, research actions aimed at preventing the extinction of the Baraúna species are shown to be of great importance for the preservation of biodiversity in the Caatinga Biome. However, there are still few studies aimed at rescuing and protecting the dynamics of this important species in the Caatinga vegetation. Thus, the objective of the present work was to study the initial behavior and to relate the growth rates of Baraúna plants introduced in areas under different impacts arising from agricultural management over time in environmental conditions of high-altitude swamp. 10 The experiment was carried out in a Random Block Design - DBC, in an 11 x 3 arrangement (11 baraúna plants in 3 different areas of human intervention) area 1- degraded soil; area 2- arable soil; area 3- agroforestry system, carried out from October 2021 to March 2022. Soils were collected for analysis, rainfall data, luminosity data, soil cover and monthly biometric readings. In area 1, the soil was classified as sandy clay, compacted, low rate of living and dead cover, accentuated presence of erosive processes, high presence of luminosity and average growth of baraúnas when compared to the other areas; area 2- clay soil, compacted, high presence of living cover, medium presence of mulch, presence of erosive processes, high level of luminosity and it was the area in which the plants showed the highest growth in terms of stem diameter as in vertical growth; and in area 3 soil classified as sandy clay loam, not compacted, high index of living and dead cover, punctual erosion processes, low luminosity and slow growth of baraúnas. The baraúna plants are demanding in light, requiring full exposure of the canopy of their canopy to solar radiation to ensure a satisfactory development of the individuals of their species. The reintroduction of the species Schinopsis brasiliensis in the ecosystem of highland swamps is recommended due to its ecological, environmental and anthropological importance for the enrichment of local biodiversity.
Condições operacionais de estruturas hídricas destinadas ao armazenamento de água no Vale do Rio Pajeú
(2018) Rocha, Ana Karlla Penna; Barros Júnior, Genival; http://lattes.cnpq.br/4379675294862211; http://lattes.cnpq.br/9119539861018560
One of the problems related to water resources in Brazil, beyond the unconscious use of the water and overused by population, it’s your irregular geographical distribuition, so that only 3% of these resources are located in the Norteast, region that owns 27,3% of the population of the country and is characterized by high annual evaporations and low precipitation rates, which are even smaller in the Semiaridregion.In this context, one of the most important rivers of the state of Pernambuco and that constitutes the greater hydrographic basin is the Pajeú, which is born in the city of Brejinho -PE and flowsinto the Itaparica dam, with a river mouth located between the cities of Floresta and Itacuruba. Because it’s an intermittent river, one of the main initiatives of the public power to increase the water supply over time has been and continues to be the construction of large hydraulic works such as dams, whose purpose it’s to store water for supplying the cities and for the cultivation of land and animal breeding. Along the Pajeú River there are 30 reservoirs with a capacity of more than 1 million m³ of water, and the Serrinha dam has the highest storage potential with 311 million m³. Due to the lack of information on the current state of these water structures, the present work proposed to raise, between august and december of the 2018, the state of conservation and the operating dynamics of sixof the main water bodies of the Pajeú River and its tributaries.Therefore were done surveys in locoof the structural and operational aspectsof this dams, as well as approaches were taken with the managers of eachone.It was found that most of the structures shows a worrying derelictionscenario, with Brotas and Jazigo dams being the most serious cases and Saco I, which has the best condition among all of them, however all can be classified as high associated potential harm and high category therefore, prone to disruption if they remain without the short-term contemplation of a preventive management and maintenance plan.
Estruturas hidráulicas e eficiência da aplicação de água cinza em áreas irrigadas por pequenos produtores rurais do Sertão do Pajeú e do Sertão do Araripe
(2019) Silva, Paulo Romário Calixto da; Barros Júnior, Genival; http://lattes.cnpq.br/4379675294862211; http://lattes.cnpq.br/9400875516238976