PT - JOURNAL ARTICLE AU - Adam Chambers AU - Rattan Lal AU - Keith Paustian TI - Soil carbon sequestration potential of US croplands and grasslands: Implementing the 4 per Thousand Initiative AID - 10.2489/jswc.71.3.68A DP - 2016 May 01 TA - Journal of Soil and Water Conservation PG - 68A--74A VI - 71 IP - 3 4099 - http://www.jswconline.org/content/71/3/68A.short 4100 - http://www.jswconline.org/content/71/3/68A.full