Table 16 Area of land in various crop rotations 2019–2021 excluding 0.5 km buffer around open water, and potential change in SOC stocks across policies and states
From: Crop rotation and the impact on soil carbon in the U.S. Corn Belt
OH | IA | IL | IN | Corn Belt | |
|---|---|---|---|---|---|
Area of land (hectare) | |||||
Mono-cropped with soybeans out of 3 years | 211,878 | 16,396 | 99,372 | 108,239 | 435,886 |
Increase of SOC (Mg C) | |||||
by adding 1 year of corn | 6,963,243 | 538,857 | 3,265,794 | 3,557,214 | 14,325,109 |
by adding 2 years of corn | 9,876,412 | 764,296 | 4,632,085 | 5,045,424 | 20,318,218 |
by adding 3 years of corn | 16,567,635 | 1,282,103 | 7,770,301 | 8,463,675 | 34,083,714 |
Area of land (hectare) | |||||
Cropped with soybeans for 1 year and corn for 2 years out of 3 years | 923,848 | 2,279,466 | 2,493,299 | 1,187,567 | 6,884,179 |
Increase of SOC (Mg C) | |||||
by adding 1 year of corn | 12,814,722 | 31,618,552 | 34,584,632 | 16,472,781 | 95,490,688 |
by adding 2 years of corn | 42,246,044 | 104,236,264 | 114,014,483 | 54,305,496 | 314,802,288 |
Area of land (hectare) | |||||
cropped with soybeans for 2 years and corn for 1 year out of 3 years | 578,167 | 3,265,437 | 2,832,663 | 1,099,136 | 7,775,403 |
Increase of SOC (Mg C) | |||||
by adding 1 year of corn | 20,510,192 | 115,839,857 | 100,487,408 | 38,991,338 | 275,828,795 |