Complex sentence: Meanwhile, Zhang keeps up the pressure on Ma and others to sell their land, and Ma's health continues to decline as he tends the terracing and eventually dies of illnesses that he can't afford treatment for.
Split into simpler sentences: Meanwhile, Zhang keeps up the pressure on Ma and others to sell their land, and Ma's health continues to decline as he tends the terracing. In the end, Ma is forces off of his land, and eventually dies of illnesses that he can't afford treatment for.