Soil Diversity as Affected by Land Use in China: Consequences for Soil Protection

Table 5

Land use stress on soil over time.

Number	1980s^a	1995	2000	2005	Any^b	Persistent^c
Endangered soils	78	72	80	88	94	66
Extinct soils	16	14	17	17	23	10

^aLate 1980s.
^bSoils disturbed in any years.
^cSoils disturbed all the time.