Research on Historical and Future Spatial-Temporal Variability of Precipitation in China

Table 3

Change of stable area and active area in each decade (100%).

Time	Class I		Class II		Class III		Class IV
	S	A	S	A	S	A	S	A
1960s	20.1	15.0	1.9	36.2	6.3	39.5	20.1	19.0
1970s	16.0	17.6	1.6	39.8	7.1	41.0	19.4	17.4
1980s	16.6	17.2	1.4	39.2	7.3	38.6	21.6	15.8
1990s	16.7	16.3	2.1	38.6	7.4	39.2	20.6	16.4
2000s	15.2	16.9	1.8	40.3	6.9	41.0	19.8	16.9

S means stable area; A means active area. The data in the table is the ratio (%) between the area of stable area/active area and the whole area of China.