Table 2. Water conservation and soil conservation classification statistics in 2010.

Function Level	Water Conservation		Soil Conservation
	Acreage (km2)	Area ratio (%)	Acreage (km2)	Area ratio (%)
Very Important	661.96	1.80	1828.07	4.97
Important	763.35	2.08	4921.71	13.39
Moderate	3479.34	9.47	8749.80	23.80
Common	31851.08	86.66	21259.12	57.83