Root colonization’s by arbuscular mycorrhizal fungi (FMAs) in areas degraded by oil exploration in the Amazonas State, Brazil
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.002.0004Keywords:
Degraded areas, Environmental restoration, Environmental recovery, Soil fertility, Forest species in the AmazonAbstract
The recovery of degraded areas in the Amazon is a challenge to be faced so that the region does not suffer as much impact from human actions. The degraded areas on clearings and deposits caused by oil exploration in Urucu serve as a reference for the development of recovery technologies throughout the Amazon. The objective of this study was to evaluate the importance of arbuscular mycorrhizal fungi (FMAs) in soil components that suffer direct and indirect impacts from oil exploration, from the analysis of the levels of root colonization of seedlings of forest and fruit species used in the recovery of areas exploited by the oil activity, as well as its symbiotic characteristics. All soils proved to be acidic and with high levels of aluminum, with the majority indicating the application of fertilization, mainly with Ca, Mg, K, P and Fe. The low levels of fungal hyphae found in the roots of plants used in the environmental restoration areas suggest that symbiosis with fungi contribute little or nothing to the nutrition of plants in those edaphoclimatic conditions.
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