Figure 4From: Simulated responses of soil organic carbon stock to tillage management scenarios in the Northwest Great PlainsTemporal trends in slow SOC pools under CT and NT in association with various baseline SOC levels in 1972 at the sample block scale within the Northwest Great Plains ecoregion (The numbers 04, 20, and 22 refer to the sample block IDs. These three blocks are located in North Dakota, Montana, and North Dakota, respectively).Back to article page