Quantification of Root Biomass in Post-Mining Areas in the Municipality of Capitão Poço – PA, Brazil
Jamilie Brito de Castro
Federal University of Tocantins, Rua Badejós, Lote 7, Chácaras 69/72, S/n - Zona Rural,CEP: 77402-970, Gurupi, TO, Brazil.
Renisson Neponuceno de Araújo Filho *
Federal University of Tocantins, Rua Badejós, Lote 7, Chácaras 69/72, S/n - Zona Rural,CEP: 77402-970, Gurupi, TO, Brazil.
Victor Casimiro Piscoya
Federal University Rural of Pernambuco, Rua Dom Manoel of Medeiros, S/n, DoisIrmãos, CEP: 52171-900, Recife, PE, Brazil.
Cristiane Maria Gonçalves Crespo
Federal University Rural of Pernambuco, Rua Dom Manoel of Medeiros, S/n, DoisIrmãos, CEP: 52171-900, Recife, PE, Brazil.
Renata de Oliveira Fernandes
Federal University of Paraná, Avenida Lothário Meissner, 632, Jardim Botânico, CEP: 82590-300, Curitiba-PR, Brazil.
Vanessa Corrêa da Mata
Federal University of Paraná, Avenida Lothário Meissner, 632, Jardim Botânico, CEP: 82590-300, Curitiba-PR, Brazil.
Edson dos Santos Fernandes Junior
Federal University Rural of Amazônia, Av. Tancredo Neves, no. 2501,Terra Firme, CEP: 66.077-830, Belém, PA, Brazil.
Helaine Cristine Gonçalves Pires
Federal University Rural of Amazônia, Travessa Pau Amarelo, S/n, Bairro: Vila Nova, CEP: 68.650-000. Capitão Poço, PA, Brazil.
Moacyr Cunha Filho
Federal University Rural of Pernambuco, Rua Dom Manoel of Medeiros, S/n, DoisIrmãos, CEP: 52171-900, Recife, PE, Brazil.
Gerson Diego Pamplona Albuquerque
Federal University Rural of Amazônia, Av. Tancredo Neves, no. 2501,Terra Firme, CEP: 66.077-830, Belém, PA, Brazil.
Thaiana Brunes Feitosa
Federal University of Tocantins, Rua Badejós, Lote 7, Chácaras 69/72, S/n - Zona Rural,CEP: 77402-970, Gurupi, TO, Brazil.
Milton Marques Fernandes
Federal University of Sergipe, Av. Marechal Rondon, S/n, CEP 49100-000, Jardim Rosa Elze,São Cristóvão - SE, Brazil.
Raimundo Rodrigues Gomes Filho
Federal University of Sergipe, Av. Marechal Rondon, S/n, CEP 49100-000, Jardim Rosa Elze,São Cristóvão - SE, Brazil.
João Lucas Aires Dias
Federal University of Tocantins, Rua Badejós, Lote 7, Chácaras 69/72, S/n - Zona Rural,CEP: 77402-970, Gurupi, TO, Brazil.
Luiz Diego Vidal Santos
Federal University of Sergipe, Av. Marechal Rondon, S/n, CEP 49100-000, Jardim Rosa Elze,São Cristóvão - SE, Brazil.
*Author to whom correspondence should be addressed.
Abstract
The present work aimed to quantify the concentrations and biomass stock of fine andthick roots, in three areas in the municipality of Capitão Poço-PA, Brazil. The areas used were degraded area, recovery area and native forest. For soil sampling, 24 trenches were opened, measuring 70 x 70 x 100 cm. In these trenches, soil samples were taken at depths 0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-80 and 80-100 cm and sieving was carried out.All roots and other underground plant structures that remained in the sieve were collected by manual collection. The roots were separated into two diameter classes: fine roots ≤ 5 mm and thick roots > 5 mm, kiln dried and weighed.In the analysis, higherconcentrationsofthickand fine roots were observed in an area of native forest at depths of 0-10 and 10-20 cm. In the areas analyzed in this study, the root density in the topsoil of 0-10 cm was mainly composed of fine roots.In the three areas analyzed in this study, it was observed that from a depth of 10-20 cm there were decreases in theconcentrationsofthick roots. The area under recovery approached the area of native forest in the concentration of fine roots, demonstrating possible improvements in soil quality and recovery is probably actually taking place.
Keywords: Degraded area, recovery, root stock, underground biomass