0 present participle of tend
1 to be likely to behave in a particular way or have a particular characteristic:
2 to care for something or someone:
Children tend to get unsettled if you keep on changing their routine.
Paintwork on the corner of a stairway tends to get nicked and scratched.
The British traditionally tend not to display much emotion in public.
In summary, we have three outputs: afforestation area, reforestation area, and junior-forest tending area, and one input: total expense in silviculture.
It is objective, factual, formal, official, sometimes tending to hostility.
As before, the stress saturates, tending at large times to a position-independent value, away from the boundary.