Every time farmers move their cattle to a new grassland area or decide to grow crops, the environment is stressed.
farmers use plot of land for a few years,
and then abandon the crop fields for more productive ground,
as soon as they abandon their old farms,
the plant roots no longer hold down the soil.
then the desert quickly moves in , making the land unusable. the problem is basically a land management issue.
the only way to stop desertification is to help vegetation grow by giving land more water. some scientists suggest planting large trees.
but others maintain this just uses up valuable water for precious smaller pieces of land. there is no easy solution.