Where's the Runoff?

摘要

Cattle produce much more than beef: A typical 1000-head feedlot can generate as much as 254 Mg (280 tons) of manure in a week, according to the U.S. Agricultural Research Service (ARS). Safely managing the runoff from such feedlots can be a challenge, but ARS scientists have developed a new method for storing runoff that is designed to improve upon current practices.