33 results

Rice straw biochar mitigates metal stress in corn and assists in the phytoattenuation of a slag-contaminated soil

Venâncio de Lima Veloso ORCID logo , Fernando Bruno Vieira da Silva ORCID logo , Paula Renata Muniz Araújo ORCID logo , Taciana da Silva Paraizo ORCID logo , Edivan Rodrigues de Souza ORCID logo , Clístenes Williams Araújo do Nascimento ORCID logo

01/abr/2025

ABSTRACT Soils polluted by potentially toxic elements (PTEs) pose a high risk to human health and must be remediated. Applying biochar to such soils can reduce metal bioavailability and phytotoxicity, improving phytoremediation techniques. This study aimed to assess the effects of rice straw biochar (RSB) on mitigating metal stress and accumulation of Si, Cd, Pb, and Zn in corn plants grown in soil contaminated by metallurgy slag. Soil in pots was amended with RSB rates equivalent to 0, 5, 10, […]

Drill cuttings from oil exploration improve properties of substrate and growth of Ipê-branco (Tabebuia roseoalba) seedlings

Victória Maria Monteiro Mendonça ORCID logo , Dione Richer Momolli ORCID logo , Alan Henrique Marques de Abreu ORCID logo , Júlio César Ribeiro ORCID logo , Marcos Vinicius Winckler Caldeira ORCID logo , Jorge Makhlouta Alonso ORCID logo , [...]

23/out/2024

ABSTRACT More information is needed on the potential of using drill cuttings (crushed rocks) from the oil industry in agriculture and forestry. An experiment in forest nursery was carried out to evaluate the influence of substrates formulated from onshore gravel on characteristics of Ipê-branco (Tabebuia roseoalba) seedlings (i.e., growth, quality, and nutrition). We used five gravimetric proportions of gravel from drill cuttings mixed with Pinus-bark – commercial substrate (Mecplant® Florestal 3): control with only commercial substrate and zero gravel (G0), […]

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Influence of soil nutrients on net primary productivity in post-mining forests in the Colombian Pacific

Harley Quinto Mosquera ORCID logo , Hamleth Valois Cuesta ORCID logo , David Pérez Abadía ORCID logo

25/mar/2024

ABSTRACT Tropical forests have the highest rates of net primary productivity (NPP) in terrestrial ecosystems and, therefore, may contribute significantly to the mitigation of global climate change. Although NPP is influenced by soil fertility, and recently, in some regions, mining activity in forest ecosystems has intensified. Little is known about how soils determine the restoration of NPP in forests degraded by mining. We evaluated the influence of soil nutrients on wood NPP of post-mining forests in the biogeographic Chocó region […]

Visual Abstract

Oxidative stress as markers in identification of aluminum-tolerant peach tree rootstock cultivars and clonal selections

Marcos Vinícius Miranda Aguilar ORCID logo , Gerâne Silva Wertonge ORCID logo , Thalía Preussler Birck ORCID logo , Luana da Rosa Lovato ORCID logo , Flaiane Catarine Rosa da Rosa ORCID logo , Jacson Hindersmann ORCID logo , [...]

11/mar/2024

ABSTRACT Peach rootstock and scion cultivars are selected in breeding programs considering resistance to pests and diseases, salt tolerance, drought tolerance, and vigor. However, rootstock tolerance to aluminum (Al), which is markedly present in tropical and subtropical soils of the world, is not considered. Thus, it is essential to define potential markers that can contribute to the selection of Al-resistant or Al-tolerant peach rootstocks. The objective of this study was to identify Al-tolerant peach tree rootstock cultivars and clonal selections […]

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Litterfall production, decomposition and litter nutrient contents in a mined area revegetated with different forest species

Fernanda Daniele de Almeida Valente ORCID logo , Marllon Fialho de Castro ORCID logo , José Ferreira Lustosa Filho ORCID logo , Aldo Teixeira Lopes ORCID logo , Silvano Rodrigues Borges ORCID logo , Lucas Carvalho Gomes ORCID logo , [...]

29/mar/2023

ABSTRACT Afforestation of sites disturbed after bauxite mining is the favorite technique to restore all ecosystem functions. The nature of the tree species used for revegetation of post-mining land can accelerate the recovery of soil organic matter and nutrient cycles. This study aimed to determine the litterfall production, decomposition rate and nutrient content from three types of forest cover ( Eucalyptus , Anadenanthera peregrina , mixed plantation of 16 native species) planted in a bauxite mining area in recovery. Litterfall […]

Visual Abstract

Heavy metals and pesticides in soils under different land-use patterns in neotropical high Andean Páramos

Lizeth Manuela Avellaneda-Torres ORCID logo , Andrea Patricia Pinilla Núñez ORCID logo , Laura Daniela Jerez Pérez ORCID logo , Baudilio Acevedo Buitrago ORCID logo

25/abr/2022

ABSTRACT Páramos are unique strategic ecosystems in the neotropical region, above the upper limit of closed forest and below the lower limit of perpetual snow in the tropical mountains of Central and South America. Their soils are of particular importance for water regulation and carbon storage; however, thousands of peasants develop agricultural activities such as potato cultivation and livestock farming in these areas. This research aimed to evaluate the possible heavy metals contents (arsenic, cadmium, mercury, and lead) and pesticide […]

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Topsoil depth influences the recovery of rupestrian grasslands degraded by mining

Lina Andrade Lobo Rezende ORCID logo , Geraldo Wilson Fernandes ORCID logo , Ramon de Paula Braga ORCID logo , Luiz Eduardo Dias ORCID logo , Vanessa Matos Gomes ORCID logo

24/nov/2021

ABSTRACT Close association of iron mining and ferruginous rupestrian grassland places this ecosystem in a special condition of vulnerability, with a large number of degraded areas requiring restoration. Seedling transplantation and topsoil translocation can be used to recover native vegetation in degraded areas. This study aimed to experimentally test the application of two different topsoil depths (0.20 and 0.40 m) in a degraded area. We assessed the vegetation’s natural recovery and the survival of transplanted native species from rescue operations […]

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Biochar and conventional compost reduce hysteresis and increase phosphorus desorbability in iron mining waste

Rafael Silva Guedes ORCID logo , Duane Azevedo Pinto ORCID logo , Sílvio Junio Ramos ORCID logo , Yan Nunes Dias ORCID logo , Cecílio Fróis Caldeira Junior ORCID logo , Markus Gastauer ORCID logo , [...]

21/jul/2021

ABSTRACT: Phosphorus (P) fixation in the soil reduces the utilization of this element by plants and can be one of the main problems for fertilization management in soils containing Fe oxides. As a strategy to minimize the effects of P retention, organic materials, such as biochar or commercial composts, may be useful tools to maintain P availability and delay immobilization of this element in the soil, thereby benefiting, for example, the rehabilitation of areas impacted by Fe mining. The objective […]

Visual Abstract

Different N-fertilization sources affecting the native soil organic matter mineralization on Technosols under iron ore tailing

Paula Afonso de Oliveira ORCID logo , Igor Rodrigues de Assis ORCID logo , Luiz Eduardo Dias ORCID logo , Ivo Ribeiro da Silva ORCID logo , Gustavo Magalhães Nunes Barbosa ORCID logo , Rafael da Silva Teixeira ORCID logo , [...]

26/nov/2020

ABSTRACT: Accidents related to the rupture of iron ore tailings dams have dramatically impacted on the Brazilian natural ecosystem. So, the development of strategies to recover soil organic matter levels and build-up Technosols are required. This study aimed to evaluate the effect of N-mineral and -organic fertilization and the rhizospheric effect on soil organic matter mineralization from Technosols built under iron ore tailings. The experiment was carried out in a greenhouse; we used a factorial scheme 2 × 2 × […]

Bioaugmentation-assisted phytoremediation of As, Cd, and Pb using Sorghum bicolor in a contaminated soil of an abandoned gold ore processing plant

Cácio Luiz Boechat ORCID logo , Filipe Selau Carlos ORCID logo , Clístenes Williams Araújo do Nascimento ORCID logo , Patricia Dorr de Quadros ORCID logo , Enilson Luiz Saccol de Sá ORCID logo , Flávio Anastácio de Oliveira Camargo ORCID logo

05/out/2020

ABSTRACT The two main bottlenecks for a successful phytoremediation program are the metal availability in soil and the metal uptake and transfer to shoots of high biomass plants. Several agronomical practices have been tested to boost the bioavailability of metals in soils and accumulation in plants. Here we assessed the feasibility of plant-growth-promoting bacteria (PGPB) isolated from a site contaminated by gold ore processing activities to assist the phytoremediation of As, Cd, and Pb by Sorghum bicolor and mitigate the […]

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