Processos biológicos para o aumento da biodiversidade do solo: efeitos na mesofauna edáfica
Arquivos
Data
2024-05-28
Autores
Itkes, Marina Paes Machado 
Orientadores
Esposito, Elisa
Tipo
Dissertação de mestrado
Título da Revista
ISSN da Revista
Título de Volume
Resumo
O solo é um ecossistema essencial que abriga uma vasta diversidade de microrganismos, incluindo bactérias, arqueias, protozoários, fungos e vírus com diversas atividades metabólicas, além de outros grupos que interagem diretamente e indiretamente com essas comunidades. Particularmente, certos grupos de invertebrados do solo desempenham papéis cruciais como consumidores e agentes de controle populacional, influenciando diretamente a fertilidade do solo. Portanto, o manejo adequado do solo e de sua microbiota é fundamental para garantir a saúde e fertilidade do sistema. Este estudo investigou os efeitos da inoculação de microrganismos em diferentes tratamentos (BK, CM e AP), em comparação com os controles (C e CH), dentro de um sistema de manejo agroflorestal, e como isso influenciou as comunidades de fauna edáfica, com foco na mesofauna. Foram estabelecidos vinte canteiros agroflorestais, divididos em cinco tratamentos em pares de dois. Cinco coletas foram realizadas ao longo de um ano (fase 0, fase 1, fase 2, fase 3 e fase 4), trimestralmente, durante o período da manhã, com uma permanência de 48 horas nos funis de Berlese-Tüllgren para a coleta da fauna. A análise dos dados, incluindo o número de indivíduos, número de morfoespécies e índice de riqueza, revelou diferenças significativas após o período de duas inoculações, correspondente à fase 3, com destaque para o tratamento com bokashi
The soil microbiome is an indispensable part of soil, composed of various microorganisms such as bacteria and fungi with a wide diversity of metabolic activities, as well as other groups that directly and indirectly interact with these communities. Some soil invertebrate groups have a direct relationship with microbial groups, playing roles as consumers and population control agents in the soil, directly influencing soil fertility. Therefore, proper soil and microbiota management is essential to ensure system fertility. This study investigated the effects of microbial inoculation in different treatments (BK, CM, and AP), compared to controls (C and CH), within an agroforestry management system, and how this influenced edaphic fauna communities, with a focus on mesofauna. Twenty agroforestry beds were established, divided into five treatment pairs. Five collections were conducted over a year (phase 0, phase 1, phase 2, phase 3, and phase 4), quarterly, during the morning, with a 48-hour exposure in Berlese-Tüllgren funnels for fauna collection. Data analysis, including the number of individuals, number of morphospecies, and richness index, revealed significant differences after the period of two inoculations, corresponding to phase 3, with emphasis on the bokashi treatment.
The soil microbiome is an indispensable part of soil, composed of various microorganisms such as bacteria and fungi with a wide diversity of metabolic activities, as well as other groups that directly and indirectly interact with these communities. Some soil invertebrate groups have a direct relationship with microbial groups, playing roles as consumers and population control agents in the soil, directly influencing soil fertility. Therefore, proper soil and microbiota management is essential to ensure system fertility. This study investigated the effects of microbial inoculation in different treatments (BK, CM, and AP), compared to controls (C and CH), within an agroforestry management system, and how this influenced edaphic fauna communities, with a focus on mesofauna. Twenty agroforestry beds were established, divided into five treatment pairs. Five collections were conducted over a year (phase 0, phase 1, phase 2, phase 3, and phase 4), quarterly, during the morning, with a 48-hour exposure in Berlese-Tüllgren funnels for fauna collection. Data analysis, including the number of individuals, number of morphospecies, and richness index, revealed significant differences after the period of two inoculations, corresponding to phase 3, with emphasis on the bokashi treatment.
Descrição
Citação
ITKES, M.P.M. Processos biológicos para o aumento da biodiversidade do solo: efeitos na mesofauna edáfica. 2024