Resumo

MONTENEGRO-GOMEZ, Sandra Patricia; NIETO-GOMEZ, Libia Esperanza  e  GIRALDO-DIAZ, Reinaldo. Effect of agroecological practices on soil conservation of the San Isidro Peasant Reserve Zone. Entramado [online]. 2022, vol.18, n.2, e210.  Epub 16-Out-2022. ISSN 1900-3803.  https://doi.org/10.18041/1900-3803/entramado.2.8002.

Soil biodiversity is threatened by global anthropogenic changes, such as intensification of land use, deforestation and extreme climatic events. This research identified the status of indicators of soil biological response to agroecological management of production systems in the San Isidro Peasant Reserve Zone, municipality of Pradera, Valle del Cauca, Colombia. Topsoil samples were taken from multiple sites in each production system. Soil texture analysis, chemical attribute analysis (pH, M.O., FF K, Ca, Mg, Na, Fe, Mn, Cu, Zn and B), microbial and mesofauna quantification, and agroecological management indicators were analyzed in each of the 15 agroecosystems. It was found that conservation tillage prevails and that among the soil chemical properties that can be improved is pH and that organic matter management should be strengthened. It was concluded that the current agroecological management carried out by the community requires the incorporation of organic matter taking into account the soil texture of each agroecosystem to improve conditions related to soil aeration, humidity and erosion. Promising results were evidenced in soil biological indicators; however, additional efforts are required to strengthen their potential since many properties evaluated are the reflection of multiple processes, therefore, it is necessary to establish direct links between soil biodiversity and crop production in order to implement management practices.

Palavras-chave : Biodiversity; Mesofauna; Agroecology; Soil; Diversity Indexes.

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