Table 1. Timeline of events influencing cropland in Northeast China.
| Year | Program | 
|---|---|
| 1986 | Land Administration Law | 
| 1987 | Shelterbelt Development Program | 
| 1988 | Comprehensive Agricultural Development Program | 
| 1989 | Environmental Protection Law | 
| 1997 | National Land Consolidation Program | 
| 1998 | Natural Forest Conservation Program | 
| 1999 | Grain for Green Program | 
| 2004 | Decision on deepening reform and strict land management | 
| 2013 | National Land Consolidation Plan | 
| 2015 | Cultivated Land Quality Program |