1

( )

2

0102030405060708090

100

0 10 20 30 40 50 60 70 80 90 100

%

%

3

�

�

�

�

�

4

U

5

6

7

8

9

U 65%

10

11

12

13

( ) FR

14

15

16

17

( ) 2

( )

50%50%

18

19

MI U

MU

20

21

22

23

24

25

600800

10001200140016001800

0.0 10.0 20.0 30.0(A )

26

y = 2.7103x + 196.81R² = 0.3611

180190200210220230240250260270

0.0 5.0 10.0 15.0 20.0 25.0

27

y = -32.223x + 2858.7R² = 0.8228

5.0 10.0 15.0 20.0

C/

g/

600700800900

10001100120013001400

8.0 13.0 18.0

/

(C/N )

28

29

D 4 A B:C: D:

A B C:

30

31