Plants (Oct 2022)

Forest–Fruticulture Conversion Alters Soil Traits and Soil Organic Matter Compartments

  • Bruna Firmino Enck,
  • Milton Cesar Costa Campos,
  • Marcos Gervásio Pereira,
  • Fernando Gomes de Souza,
  • Otavio Augusto Queiroz Santos,
  • Yan Vidal de Figueiredo Gomes Diniz,
  • Thalita Silva Martins,
  • José Mauricio Cunha,
  • Alan Ferreira Leite de Lima,
  • Tancredo Augusto Feitosa de Souza

DOI
https://doi.org/10.3390/plants11212917
Journal volume & issue
Vol. 11, no. 21
p. 2917

Abstract

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Fruticulture in the Amazonian Rainforest is one of the main causes of deforestation, biodiversity loss, and soil erosion. Fruticulture plays a key role in the soil traits and soil organic matter (SOM) compartments by altering the soil ecosystem. Our aim was to assess the influence of Forest–Fruticulture conversion on soil traits, and SOM fractions in Brazil’s Legal Amazon. The experiment was carried out in field conditions using four land uses as main treatments: Bixa orellana, Theobroma grandiflorum, Paullinia cupana, and the Amazon Rainforest. The soil physicochemical traits were analyzed using samples that were collected from 0–5, 5–10, and 10–20 cm soil depth by using grids (10 × 10 m) with 36 sampling points. Our results showed that the Fruticulture promoted an increase in bulk density, GMD, aggregate diameter, soil porosity, gravimetric moisture, sand, clay, carbon associated with humic acid, and, the sum of bases (K+, Ca2+, and Mg2+), while the Amazon Rainforest showed the highest values of silt, soil P content, SOC, p-SOC, m-SOC, carbon associated with fulvic acid, humine, and soil C stock. Overall, the fruticulture farming systems have negative effects on SOM compartments. The results of our study highlight the importance of considering fruticulture with endemic plant species by promoting soil fertility and soil aggregation.

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