**3.2 Variability of the volume of soil solution collected in the different areas studied**

The greatest volumes collected by the soil solution extractors for evaluation of DIC, DOC, and DON were in the areas of riparian vegetation, AFSs, and secondary

#### **Figure 2.**

*Monthly precipitation from January 2009 to march 2015. Igarapé-Açu/Embrapa Amazônia oriental meteorological station.*

