
Jose FREDSON Bezerra LopesFederal University of Ceará | UFC · Departamento de Engenharia Agrícola
Jose FREDSON Bezerra Lopes
Estudante de Doutorado
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Publications (15)
In Brazil, logging in the Seasonally Dry Tropical Forest (SDTF) under management plans that include clear-cutting has increased in recent decades, and the structure, composition, diversity and functioning of the forest likely must have been affected. The aim of this study was to understand the growth dynamics of shrub–tree biomass (STB), species ri...
O semiárido brasileiro é afetado por escassez hídrica constante, onde o reservatório superficial artificial representa uma das principais estratégias para convivência e mitigação dos efeitos da seca. Além de armazenamento hídrico, o barramento superficial gera acúmulo de sedimentos e nutrientes, o que ocasionam a redução da vida útil dos reservatór...
Management of tropical dry forests in Brazil expanded 450% in the two latest decades; but little is known about the dynamics of these areas. Thus, the objective of this work was to evaluate if the recovery of mean original biomass stocks (MOBS) is a consistent criterion to define cut cycles in a managed forest for charcoal production, and determine...
Litter is the most important way of transferring essential elements from vegetation to the soil. This is due to nutrient cycling, a process by which decomposition of the litter adds nutrients to the soil. An understanding of this process goes beyond the need for knowledge of nutrient dynamics, since it is a question
of understanding the way in whic...
Objetivou-se neste estudo determinar o Índice de Estado Trófico do açude Pompeu Sobrinho, Ceará, e avaliar o comportamento temporal dos parâmetros Fósforo Total, Clorofial-a e Transparência. Para isso, foram obtidas 17 amostras de Clorofila-a, Fósforo total e Transparência, de análises realizadas entre outubro de 2009 e novembro de 2016, com frequê...
Para avaliar a deposição e a taxa de decomposição da serapilheira em área da Caatinga, bem como, verificar a interferência de variáveis climáticas, desenvolveu-se um estudo em quatro microbacias localizadas no município de Iguatu, Ceará, Brasil. A produção de serapilheira era coletada mensalmente (mai/2007 a set/2008) em 20 caixas de 1,0 m2, separa...
Objetivou-se com este estudo avaliar as perdas de solo e nutrientes por erosão hídrica em quatro áreas sob vegetação de Caatinga com diferentes coberturas vegetal em três alturas pluviométricas. Foram instalados 24 coletores de solo distribuídos em quatro microbacias (A, B, C e D) localizadas em uma área de caatinga no município de Iguatu, Ceará. O...
This work was carried out to develop an integrated analysis of determinants factors on the farmers' sustainability in Baixo Acaraú Irrigated District, Ceará, Brazil. The study was performed through a sustainability index (SI) using Factor Analysis/Principal Component Analysis (FA/PCA). The approach was based on 22 cross-over form applied to small f...
The aim of this work was to make an analysis of natural resources at Ayres de Souza Irrigated District sited in Acaraú basin, Ceará, Brazil. This study was performed through an agro ecological sustainability index (ASI). The approach was based on 33 cross-over form applied to small farms located in the irrigated district. Factors Analysis/Principal...
It is constant the risk of contamination in the water table by leachining of salts and toxic waste, such as fertilizer and
pesticides. Therefore, it is necessary to understand the dynamics of the quality of waters and devise a plan of sustainable water
use consequently a study was conducted at the water table basin located at the Perímetro Irrigado...
To identify the soil salinity and sodium risk, due to irrigation management, was carried out a comparative study of the Electric Conductivity (EC) and Sodium Adsorption Ration (SAR) values, between an irrigated area and an undisturbed land (MN). The investigation occurred at two Irrigated Districts: Baixo Acaraú (DIBAU) and Araras Norte (DIPAN) sit...
Resumo -Para se avaliar a adição de sais ao solo pela irrigação ao longo do tempo e o efeito das chuvas na lixiviação dos sais, tomou-se como referencial o status salino do solo da mata nativa. O trabalho foi realizado em área do Distrito de Irrigação do Perímetro Araras Norte (DIPAN), Ceará, irrigada a cinco anos por microaspersão. Foram coletadas...