How many trees per acre where there 20 years ago in the amazon rainforest?

Estimating the number of trees per acre in the Amazon rainforest 20 years ago can be challenging due to variability in forest density and types across different regions. However, studies prior to significant deforestation efforts indicated that there were typically around 80 to 100 large trees per acre in mature tropical rainforest areas. It's important to note that this number can vary widely based on factors such as location, soil type, and ecological conditions. Overall, the Amazon rainforest is known for its high biodiversity, with millions of individual trees spread across vast areas.