Stripes tell the story
This overhead photo, taken at the beginning of this year, clearly shows the results of our different experimental approaches in Tietê Forests.

This area was planted about a year ago. The green stripes on the restored area are where herbicide has not been used and invasive grasses are present, with the small seedlings struggling to compete. In the browner stripes herbicides have been used, and the Guandu or pigeonpea (Cajanus cajan, a green manure species) and seedlings are clear to see and doing well.

At the bottom of this picture is a sugar cane field, and you can just see the river at the top of the picture, where the soil is very waterlogged and not good for restoration.