Reflorestamento Urbano em Manaus: Avaliação do Crescimento e Sobrevivência de Espécies Amazônicas em Áreas Urbanas

Abstract

Accelerated urban growth, driven by advances in agricultural techniques, food production, and population increase in densely populated areas, has led to negative impacts such as pollution, diseases, poor sanitary conditions, and social inequalities. Cities undergo aesthetic, climatic, and ecological transformations that affect quality of life and local fauna. Urban arborization, essential for environmental quality, plays key roles such as air purification, thermal regulation, and pollution reduction. However, a knowledge gap remains regarding the most suitable native species, particularly in regions like the Amazon. This study aimed to evaluate the growth and survival of native species seedlings planted by the Municipal Secretariat for the Environment and Sustainability (SEMMAS) in three areas of Manaus. The study was conducted across three distinct areas, referred to as Areas 1, 2, and 3, monitoring 359 individuals from 20 species. Area 3, with the highest tree coverage, showed the best results in terms of survival and growth, whereas Area 2, characterized by open fields, exhibited a high mortality rate. Area 1, impacted by the construction of an overpass, also recorded significant losses. The methodology included an inventory of planted seedlings, analysis of phytosanitary factors, and calculation of diversity and evenness indices. The data analysis identified factors influencing the growth and survival of the seedlings, providing insights for future urban arborization initiatives.