Sample site

Land use type

Soil type

TOC (%)

pH

H1

farmland soils

chestnut soil

0.634

7.8

H2

farmland soils

chestnut soil

0.956

8.1

H3

farmland soils

chestnut soil

0.853

7.9

H4

farmland soils

aeolian soil

0.189

8.9

H5

farmland soils

chao soil

1.168

7.6

H6

farmland soils

aeolian soil

0.253

8.4

H7

farmland soils

chao soil

0.978

7.7

H8

farmland soils

chao soil

1.022

7.4

H9

farmland soils

chestnut-brown soil

0.836

8.2

H10

farmland soils

chao soil

1.011

7.6

H11

farmland soils

chestnut-brown soil

0.968

8.0

H12

vegetable soils

chao soil

1.502

7.5

H13

fruits tree soils

chestnut-brown soil

0.815

8.4