Adão Ferreira

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Judith L Green

University of California, Santa Barbara

E. Wayne Ross

University of British Columbia

Kumar Saurav

University of Haifa

Clarice Noleto

UFPB - Universidade Federal da Paraíba

Professor Dr. Loutfy H . Madkour

Al-Baha University, Kingdom of Saudi Arabia

Guilherme Moerbeck

UERJ - Universidade do Estado do Rio de Janeiro / Rio de Janeiro State University

Tadesse B Tafesse

Haramaya university

Diamanto Lazari

Aristotele University of Thessaloniki

Francisco José T Ô R R E S D E Aquino

Universidade Federal de Uberlândia

Alberto Oliveira

Universidade Federal de Uberlândia

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Biochemical activity and microbial biomass in wetlands (Vereda) and well-drained soils under native vegetation types in Brazilian Cerrado

The Cerrado is the second largest Brazilian biome, a world biodiversity hotspot and home to impor... more The Cerrado is the second largest Brazilian biome, a world biodiversity hotspot and home to important hydrographic basins. In this biome, native vegetation types play crucial environmental roles as natural repositories of carbon, water and biodiversity. However, the Cerrado is threatened by deforestation and land degradation. The soil microbiology knowledge of these areas would provide a better understanding of how this threatened environment functions and a basis for monitoring and conservation. This study investigates soil respiration, microbial biomass and enzymes activity of the native wetlands (veredas), and well-drained soils under native cerrado sensu stricto and semi-deciduous dry forest. Vereda soils produced the highest levels of soil biological attributes, while the semi-deciduous dry forest produced intermediate values and the Cerrado, the lowest values. Regardless of season, differences in soil activity were best correlated with five biological attributes: basal respira...

Impact of land use on soil function and bacterial community in the Brazilian savanna

Anais da Academia Brasileira de Ciências, 2021

Land use systems have a great impact on soil function and microbial diversity in tropical soils. ... more Land use systems have a great impact on soil function and microbial diversity in tropical soils. Our study aimed to evaluate soil biochemical indicators and community composition and to assess the relationship between soil biochemical and microbial indicators and bacterial diversity of three agroecosystems (pine forest, soya and sugarcane) and native Cerrado forest in the Brazilian savanna. Soil biochemical indicators (soil organic matter and enzymes) and high-throughput sequencing of 16S rDNA were performed in two topsoil depths (0-5 cm and 5-10 cm). Soil microbial and enzyme activity showed that agricultural soil usage has a negative impact on soil function compared to native and pine forests. Results also revealed higher enzyme activities in 0-5 cm depth compared to 5-10 cm depth, but enzymatic activities depend on land use systems. Soil bacterial community was affected by land use systems and depth, revealing changes in structure and abundance of bacterial composition. Alphadiversity indexes were higher in the agricultural systems than in the forests, however they showed a signifi cant negative correlation with most of the studied soil microbial and biochemical indicators. Our research had brought new relevant information about the relationship between the soil biochemical indicators and the bacterial diversity in the Brazilian Cerrado.

Adão Ferreira

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