Table S3.
Major land management activities and natural disturbances used in model simulations
| Type | Source/reference | Spatial resolution | Time period |
| Crop management | |||
| Crop yield | USDA NASS crop yields | County | 1992–2050 |
| Fertilization | USDA ERS fertilization use | County | 1992–2050 |
| Manure | USDA ERS manure use | County | 1992–2050 |
| Tillage | Conservation Technology Information Center (CTIC) | County | 1992–2050 |
| Irrigation | USGS Irrigated Agr. Dataset | 250 m | NA |
| Derived crop management | |||
| Derived crop type, manure, tillage, and fertilizer | Derived grids for this study (34) | 250 m | 1992–2050 |
| Fire | |||
| Extent, severity, frequency | USGS Professional Report 1797 (18) | 250 m | 1992–2050 |
| Forest clearcuts | |||
| Forest-stand age | USGS Land Cover Trends Project | 250 m | 1992–2050 |
| Timber product output | TPO form USDA FIA RPA | State | 2009 |
| Forest partial cutting | |||
| Forest thinning ratio | USDA Forest Service FIA | FIA unit | NA |
| Forest disturbance | |||
| Forest mortality ratio | USDA Forest Service FIA | FIA unit | NA |
| Drought | |||
| Precipitation | PRISM Climate Group and CFS | 250 m | 1992–2050 |
Note: CFS, Canadian Forest Service; CTIC, Conservation Technology Information Center; NA, not applicable; NASS, National Agricultural Statistics service; PRISM, parameter-elevation regressions on independent slopes model; TPO, timber product output; USDA, US Department of Agriculture; USDA ERS, USDA Economic Research Service; USDA FIA RPA, USDA Forest Inventory Analysis Resource Planning Act; USGS, US Geological Survey.