Doing a good job in the greening of pig farms has a great effect on improving the environment of pig farms.
It can purify about 25%~40% of harmful gases and absorb about 50% of dust. It can also reduce noise, prevent epidemics and isolate, prevent heatstroke and cool down.
Plant some trees inside and outside the fence of the pig farm according to the conditions of the site. If conditions permit, it is best to plant a 5-10 meter wide isolated forest belt around the farm area.