Since the second half of last year , china 's paper and paper products industry affected by the global economic crisis which resulted in a serious consumer difficulties , overstocking , equipment supplies the significant drop in profits .
" By the early 20th century , overstocking , quarantine laws , railroad competition , and barbed-wire fences had put an end to cattle drives and open-range farming . Ranching today is nearly all sedentary , but huge ranches still exist . "