Groundwater Chemistry in the Amazon Rainforest

Abstract: Groundwater chemistry is highly variable and dependent on environmental conditions, and it is not entirely understood how all these factors contribute to groundwater chemistry. This study aims to examine some of the factors that contribute to groundwater heterogeneity in the Amazon Rainforest. This was done by collecting groundwater samples from piezometers in three different regions of the Amazon Basin in Brazil, and then analyzing them in the lab for cations and anions, as well as dissolved inorganic and organic carbon. Environmental conditions were measured in the field using portable probes. The results were analyzed and compared with previously established figures for tropical forests. Statistical analyses were performed using SPSS and R in order to establish correlations and linear relationships between the studied variables.Understanding how groundwater supplies are affected is important for being able to predict and manage environmental change that can degrade groundwater sources. This knowledge could also help in developing strategies for groundwater remediation efforts in areas where supplies are contaminated.