Open AccessStudy on Site Preparation and Restoration Techniques for Forest Restoration in Mining Tailings of Mariana, Brazil
Author(s) -
Sebastião Venâncio Martins,
Pedro Manuel Villa,
Fabio Haruki Nabeta,
Leonardo Ferreira da Silva,
Gabriel Corrêa Kruschewsky,
Andréia Aparecida Dias
Publication year - 2021
Publication title -
research in ecology
Language(s) - English
Resource type - Journals
ISSN - 2661-3379
DOI - 10.30564/re.v2i4.2610
Subject(s) - human fertilization , environmental science , seedling , substrate (aquarium) , plant community , restoration ecology , sowing , forest restoration , tree planting , tailings , agronomy , ecosystem , forest ecology , biology , agroforestry , ecology , chemistry , ecological succession
Ecological restoration in forest ecosystem is a priority in Mariana, Brazil. Thus, we evaluated the effects of passive and active restoration methods through different site preparation techniques by manipulating physical-chemical properties of substrates on tree community coverage in Mariana, Brazil. A total of 48 plots (12 × 12 m each) were established in two areas along the flood plains with accumulation of tailings. The following treatments were established: (1) planting of native tree seedlings with fertilization (PSf) and (2) without fertilization (PS); (3) direct seeding of native trees with fertilization (SDf) and (4) without fertilization (SD); (5) natural regeneration with fertilization (NRf) and (6) without fertilization (NR). Differences in substrate properties and tree community coverage were evaluated between treatments, the substrate properties and tree community coverage relationship, and main effects of substrate fertility and texture on tree community coverage. There were marked differences in substrate and plant coverage between treatments. On average, the highest plant coverage was found in treatment with fertilization, such as NRf (59,5%) and SDf (48%). However, the treatment with seedling planting (PSf and PS) and NR did not show differences (~37%), while the lowest values were observed in SD (23%). There is a strong relationship between substrate fertility and plant community coverage, with significant positive effects. We observed that the passive and active restoration methods can be complementary in the soil and plant community coverage recovery.