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. 2020 Sep 8;8:e9835. doi: 10.7717/peerj.9835

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