Commonly harvested tropical species for industrial roundwood (ITTO, 2011), in terms of volume:

Other common native species:

High value species:

Principal plantation species:

Other plantation species:

COULD NOT LOCATE MAP TO SHOW DISTRIBUTION OF SPECIES

highly dependent on water, presence of extremely deep cracks in dry periods,  built on wedge-shaped structures with slickensides present, clayey texture and high chemical fertility found in Northeast Brazil

- Glyphosate binds tightly to soil. It can persist in soil for up to 6 months depending on the climate and the type of soil it is in. Glyphosate is broken down by bacteria in the soil. Glyphosate is not likely to get into groundwater because it binds tightly to soil. In one study, half the glyphosate in dead leaves broke down in 8 or 9 days. Another study found that some glyphosate was taken up by carrots and lettuce after the soil was treated with it.

http://npic.orst.edu/factsheets/glyphogen.html
Chlorpyrifos (insecticide)
- Chlorpyrifos works by blocking an enzyme which controls messages that travel between nerve cells. When the enzyme is blocked, the nervous system can't send normal signals. This causes the nervous system to malfunction and this is how it eventually kills the pest.
- Exposure to small amounts of chlorpyrifos can cause runny nose, tears, and increased saliva or drooling. People may sweat, and develop headache, nausea, and dizziness. More serious exposures can cause vomiting, abdominal muscle cramps, muscle twitching, tremors and weakness, and loss of coordination. Sometimes people develop diarrhea or blurred or darkened vision. In severe poisoning cases, exposure can lead to unconsciousness, loss of bladder and bowel control, convulsions, difficulty in breathing, and paralysis.
- When chlorpyrifos gets into the soil, it can take weeks to years for all of the chlorpyrifos to break down. Chlorpyrifos in the soil may be broken down by ultraviolet light and chemicals in the soil. Soil temperature and pH level may also affect how long chlorpyrifos stays in the soil. Chlorpyrifos will break down more slowly in acidic soils than in basic soils. It sticks strongly to soil particles. Plant roots won't usually pick it up, and it won't easily get into groundwater. Chlorpyrifos may wash into rivers or streams if erosion moves the treated soil. One of the breakdown products of chlorpyrifos, called TCP, does not bind to soil and may get into groundwater. Most of the chlorpyrifos applied to plant leaves will evaporate, but some may remain for 10 to 14 days. Chlorpyrifos or the chemicals it breaks into may get into the atmosphere and travel long distances.
- Chlorpyrifos is very toxic to many bird species such as grackles and pigeons, and it is moderately toxic to others such as mallard ducks.
- Chlorpyrifos is also very toxic to fish and aquatic invertebrates. It may build up in the tissues of fish and other animals that eat smaller animals through bioaccumulation.
http://npic.orst.edu/factsheets/chlorpgen.html

2.4-D (herbicide)
- 2,4-D kills broadleaf weeds but not most grasses. It kills plants by causing the cells in the tissues that carry water and nutrients to divide and grow without stopping.
- Pure 2,4-D is low in toxicity if eaten, inhaled, or if it contacts the skin, and some forms are low in toxicity to the eyes. People who drank products containing 2,4- D vomited, had diarrhea, headaches, and were confused or aggressive. Some people also had kidney failure and skeletal muscle damage. People who spilled 2,4-D on their skin developed skin irritation. Breathing 2,4-D vapors can cause coughing, a burning feeling in the airway, and dizziness.
- Some of the ester forms of 2,4-D can be very toxic to fish and other aquatic life. The salt forms may be only slightly toxic to aquatic animals. Aquatic animals are more sensitive to 2,4-D as water temperature rises. 2,4-D may be moderately toxic to practically non-toxic to birds if they eat it. Eggs sprayed with 2,4-D still hatched and the chicks were normal. 2,4-D is practically non-toxic to honeybees. It is not expected to be a hazard to other beneficial insects.
- 2,4-D breaks down in soil so that half of the original amount is gone in 1-14 days.
http://npic.orst.edu/factsheets/24Dgen.html