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91

ืงืจืค

6

:

ื•

ืŸืจืชื 

-SAR

1 . ืื•ื‘ืž

ืœืœืขืžืื™ืจื™ืคืฉื” ืื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื”ืœืข ืืœ ืจืงืกื”ืชื•ื ืฉื‘

-10 ืืž " ืง / ืœ ,'

ื™ืžื‘ ืŸืจืชื ื”ืœืฉื•ื–ื•ื›ื™ืจื•

ืž ื”ืœืข ืืœ ืื™ื—ืœื•ืง

-15 ืืž " ืง / ืœ ' . ืชื ืฉื‘ 2004

ืžื” ืŸืจืชื ื” ื–ื•ื›ื™ืจ ื”ื™ื”

ืง

ืื™ืจื™ืคืฉ ืื™ืžื‘ ื™ืœืžื™ืก

6 ืืž " ืง / ืœ ' ืื™ื—ืœื•ืงื‘ื• 11.4 ืืž " ืง / ืœ '. ื”ื™ื›ืจืข -SAR

ืชื ืฉื‘ืขืฆื•ืžืžื‘ืื™ืจื™ืคืฉื”ืื™ืžื‘

2004 ืœืขื•ื™ื” 2 ) ืืž " ืง / ืœ '( ยฝ ,

ื™ืœืžื™ืกืงืžื”ืšืจืขื”ืจืฉืื›

ื”ื™ื” : 3.2 ) ืืž " ืง / ืœ '( ยฝ . ื”ืšืจืข โ€“ SAR ืžื” ืง

ืชื ืฉื‘ืื™ื—ืœื•ืงื”ื™ืžื‘ื™ืœืžื™ืก

2004 ื”ื™ื” 6.1 ) ืืž " ืง / ืœ '( ยฝ , ื• ืขืฆื•ืžืžื” ื•ื–ื”ื ืฉื‘ ื”ื™ื” 4.2 ) ืืž " ืง / ืœ '( ยฝ . ืšืœื”ืžื‘

ืื™ืจืงืž ื•ื™ื” ืจืงืกื” ืชื•ื ืฉ ืœื›

ืื™ื˜ืขืž

,

ืฉ

ื” ืšืจืข ื”ืœืข ืื”ื‘

โ€“ SAR ืœ 8-6 ) ืืž " ืง / ืœ '( ยฝ ื™ืžื‘ ืื™ื—ืœื•ืงื” . ืคืœืข ื™

ืชื•ืงืœื—ื” ืŸื™ื‘ื”ืื•ื•ืฉื”

ื™ืคืœ ืชื•ืฆื•ื‘ืง ื” -SAR ื”ื™ืงืฉื”ื™ืžื‘ ,

ืื™ืžื”ื’ื•ืกื‘ ืชื•ืœืช ืืœืœ

,

ื™ื› ื”ืืจื 

ื”ืฉ ืœื›ื›

-SAR

ืจืชื•ื™ ื”ื•ื‘ื’ ืื™ืžื‘

-ืจืข ื”ืœื•ืข ืšื›

ื•ื›

ื”ื™ื•ื•ืจื”ื”ืกื™ืขื” ื™ื•ืฆื™ืžื‘

,

ื™ืž ืชื•ื›ื™ืื‘ ืชื•ืœืช ืืœืœ

ื™ื ื’ืจื•ื ืจืžื•ื— ืชืœื•ื›ืช ืชื ื™ื—ื‘ืž ื”ื™ืงืฉื”ื”

,

ืชื•ื—ื™ืœืž ืชืžืจ

,

ืื™ืจื—ื ืื™ืจื˜ืžืจืคื•

.

ื” ืืจื•ื’ ืจืžื•ืœื›

-SAR

ืขื™ืคืฉืžื” ืื•ื”

)

ื˜ื ื™ื ืืœืœ

ืื™ืจื—ื ืื™ืžืจื•ื’ ืืข ื”ื™ืฆืงืืจ

.(

ืขื  ืืœืฉ ืŸื•ื•ื™ื›ืž

ืšืจ

ืชื•ื ืฉ ืšืฉืž ื™ืคืœ ืŸื•ื™ืž

ื”ื™ืงืฉื”ื”

,

ืืืจื•ืจื‘ืืœ

ืœืฉืœืงืฉืžื™ื•ื•ื™ืฉื’ืฉื•ื”

ื”

-SAR

ื‘

ื”ืืขืขืงืจืง

-SAR

ื”ื™ืงืฉื”ื”ื™ืžื‘

.

ื› ืื™ื—ืœื•ืงื‘ืชื•ืงืฉื•ืžื”ืชื•ืงืœื—ืœืขืฆื•ืžืžื‘ื•ืคืกื•ื”ืจืงืกื”ืชื•ื ืฉืšืฉืžื‘

โ€“ 800 ืง " ื’ / ื“ ' ืŸืจืชื  .

ืื™ืœืขื”ื™ืžื’ื“ืžืจืคืกืžื‘ื”ื™ื™ืœืขื”ืชืืจื 

,

ืจืืฆืžื ืื”ื‘ืฉ

ืชื ื–ื•ื›ื™ ืŸืจ ื” ืžื”ื•ื‘ื’ โ€“ 0.2% . 2 . ื” ืšืจืขื• ืŸืจืชื ื” ื–ื•ื›ื™ืจ โ€“

SAR ืจืงืกื” ืชื•ืงืœื—ื‘ ื”ื™ืงืฉื”ื” ื™ืžื‘

ื . 2003 ื• -2004

ื”ื™ืงืฉื”ื” ืชื•ื ื•ืขื‘ ื”ืฉืขื  ืจืงืกื” ืชื•ืงืœื—ื‘ ื”ื™ืงืฉื”ื” ื™ืž ืื•ื’ื™ื“

-ื”ื ื•ืขื‘ ืื™ืžืขืค ืขื‘ืจื

.

ืื™ื ื•ืชื ื”

,

ืŸืœื”ืœืฉ ืื™ืจื•ื™ืื‘ ืื™ื’ืฆื•ืžื”

,

ื”ื ื•ืขื‘ ืื™ื™ื˜ื ื•ื•ืœืจื” ืื™ืžื•ื’ื™ื“ื” ืœื› ืœืฉ ืขืฆื•ืžืž ื‘ื•ืฉื™ื— ืชื•ืืฆื•ืช ืื”

.

ืจืชื ื”ื–ื•ื›ื™ืจืชื•ื’ืœืคืชื”

ืชื ืฉื‘ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸ

2003

ืจื•ื™ืื‘ื”ืขื™ืคื•ืž

6.1 .

ื”ื™ื”ืื™ื—ืœื•ืงื”ื™ืžื’ื“ืžืšืก

95 ,

ื‘ืฉื›

โ€“ 30%

ืž ื”ื•ื‘ื’ ืŸืจืชื ื”ื–ื•ื›ื™ืจื”ื™ื” ืื”ืž

โ€“ 6 ืืž " ืง / ืœ ', ื›ื‘ื• โ€“ 38% ื”ื™ื” ืื”ืž ื•ื–ื•ื›ื™ืจ ืž ื”ื•ื‘ื’ -8 ืืž " ืง / ืœ '. ื›ื‘ืงืจ โ€“ 5%

ืžื”ื•ื‘ื’ืŸืจืชื ื”ื–ื•ื›ื™ืจื”ื™ื”ืื™ืžื’ื“ืžื”ืž

โ€“ 10 ืืž " ืง / ืœ ' .

ื”ื™ื”ืื™ื—ืœื•ืงื”ื™ืžืŸื•ื™ืฆื—

6.8 ืืž " ืง / ืœ ',

ื”ืŸื•ื™ืฆื—ืฉื“ื•ืขื‘

ื”ื™ื”ืื™ืจื™ืคืฉื”ืื™ืž

3.7 ืืž " ืง / ืœ ' )

ื“ืคืฉื”ื™ืžื’ื“ืžื•ืคืจื•ืฆืื™ื‘ื•ืฉื™ื—ื‘

"

ืŸ

ื•ืŸืจืชื ื”ื™ื›ืจืขื‘ืŸื•ื™ืžื“ื”ืœืฉื‘ืื™ื—ืœื•ืงื”ื™ืžื’ื“ืžืœ

ื” โ€“ SAR (. ืจื•ื™ืื‘ 6.2 ื•ืž ื’ืฆ

ืชื ืฉื‘ ื”ื™ืงืฉื”ื”ื™ืžื‘ ืŸืจืชื ื”ืชื—ื™ืคืก ืกื—ื™

2003 . 75%

ื™ืœืขื‘ื•ื™ื”ืื™ื—ืœื•ืงื”ื™ืžื’ื“ืžืž

SAR ืŸื™ื‘ืฉืื•ื—ืชื‘ 2 ืœ โ€“ 4 ) ืืž " ืง / ืœ '( ยฝ . ื”ืื•ื—ืช โ€“ SAR

ืžืขื ืื™ื—ืœื•ืงื‘

โ€“ 1.6 ื“ืข 4.5 . ืชื—ื™ืคืกืšืจืข

ื”ื™ื” ืื™ืจื™ืคืฉื”ืื™ืžื‘ ืจืชื•ื™ื‘ื”ื•ื‘ื’ื”ืŸืจืชื ื”

2.3 ) ืืž " ืง / ืœ '( ยฝ .

ื”ื™ื”ืื™ื—ืœื•ืงื” ืŸื•ื™ืฆื—

2.7 ) ืืž " ืง / ืœ '( ยฝ ,

ื”ื™ื”ืื™ืจื™ืคืฉื”ืื™ืžื” ืŸื•ื™ืฆื—ื•ืœื™ืื•

1.2 ) ืืž " ืง / ืœ '( ยฝ .

ืชื ืฉื‘ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

2004 ืจื•ื™ืื‘ืขื™ืคื•ืž 6.3 ื‘ืฉื› โ€“ 70%

ืŸืจืชื ื”ื–ื•ื›ื™ืจื”ื™ื”ืื™ืžื’ื“ืžื”ืž

ืŸื™ื‘ืฉืื•ื—ืชื‘ ืื™ื—ืœื•ืงื” ื™ืžื‘

6 ืืž " ืง / ืœ ' ืœ -10 ืืž " ืง / ืœ ', ื‘ื• โ€“ 13%

(2)

92

ืž ื”ื•ื‘ื’

โ€“ 10

ืืž

"

ืง

/

ืœ

' .

ืชื ืฉื‘

2004

ืื™ื—ืœื•ืงื” ื™ืžื‘ ืŸืจืชื ื” ืœืฉ ื™ืœืžื™ืกืงืžื” ื–ื•ื›ื™ืจื” ื”ื™ื”

11.4

ืืž

"

ืง

/

ืœ

',

ื”ื™ื”ืŸื•ื™ืฆื—ื”ื•

7.6

ืืž

"

ืง

/

ืœ

'.

ื”ื™ื›ืจืข

โ€“ SAR

ืชื ืฉื‘ื”ื™ืงืฉื”ื”ื™ืžื‘

2004

ืจื•ื™ืื‘ืื™ืขื™ืคื•ืž

6.4 .

ื”ื™ื”ืื™ื—ืœื•ืงื”ื™ืžื‘ืŸื•ื™ืฆื—ื”ืšืจืข

4.0 ,

ืฆื—ื”ืšืจืขื•

ื”ื™ื”ืื™ืจื™ืคืฉื”ืื™ืžื”ืœืฉืŸื•ื™

1.7 .

ื‘

โ€“ 50%

ื”ืขื ืื™ืžื’ื“ืžื”ืž

โ€“ SAR

ืŸื™ื‘

4

ืœ

โ€“ 8 .

ื”ืšืจืข

โ€“

SAR

ืžื” ืง

ื”ื™ื”ืื™ื—ืœื•ืงื”ื™ืžื‘ื™ืœืžื™ืก

6.1 .

0 5 10 15 20 25 30 35 40

<2 2-4 4-6 6-8 8-10 10-15

['ืœ\'ืง"ืืž] ืŸืจืชื ื™ื–ื•ื›ื™ืจืื•ื—ืช

ืื™ืž

ื’ื“

ืž

ืจืคืกืž 2003 ืื™ื—ืœื•ืงืŸืจืชื 

2003 ืื™ืจื™ืคืฉืŸืจืชื  'ืœ\ืง"ืืž 3.7 =ืื™ืจื™ืคืฉืŸื•ื™ืฆื—

'ืœ\ืง"ืืž 6.8 =ืื™ื—ืœื•ืงืŸื•ื™ืฆื—

ืจื•ื™ื 6.1 : ืชื ืฉื‘ืจืงืกื”ืชื•ืงืœื—ื‘ืื™ื—ืœื•ืงื™ืžื‘ื•ืื™ืจื™ืคืฉืื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื•ื’ืœืคืชื”

2003

0 10 20 30 40 50 60 70 80

<2 2-4 4-6 6-8 8-10 10-15

SAR ื™ืžื•ื—ืช

ืื™ืž

ื’ื“

ืž

ืจืคืกืž

SAR 2003 ืื™ื—ืœื•ืง SAR 2003 ืื™ืจื™ืคืฉ

2.7 =ืื™ื—ืœื•ืงืŸื•ื™ืฆื— 1.2 =ืื™ืจื™ืคืฉืŸื•ื™ืฆื—

ืจื•ื™ื 6.2 : ื™ื›ืจืขืชื•ื’ืœืคืชื” SAR

ืชื ืฉื‘ืจืงืกื”ืชื•ืงืœื—ื‘ืื™ื—ืœื•ืงื™ืžื‘ื•ืื™ืจื™ืคืฉืื™ืžื‘

(3)

93

0

5 10 15 20 25 30 35 40

<2 2-4 4-6 6-8 8-10 10-15

['ืœ/ืง"ืืž] ืŸืจืชื ื™ื–ื•ื›ืจื™ืžื•ื—ืช

ืื™

ืž

ื’ื“ืž

ืจืค

ืกืž 2004 ืื™ื—ืœื•ืงืŸืจืชื 

2004 ืื™ืจื™ืคืฉืŸืจืชื  7.5 = ืื™ื—ืœื•ืงืŸื•ื™ืฆื—

3.2 = ืื™ืจื™ืคืฉืŸื•ื™ืฆื—

ืจื•ื™ื 6.3 : ืชื ืฉื‘ืจืงืกื”ืชื•ืงืœื—ื‘ืื™ื—ืœื•ืงื™ืžื‘ื•ืื™ืจื™ืคืฉืื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื•ื’ืœืคืชื”

2004

0 5 10 15 20 25 30 35 40 45 50

<2 2-4 4-6 6-8 8-10 10-15

SAR ื™ื›ืจืขืื•ื—ืช

ืื™ืž

ื’ื“

ืž

ืจืคืกืž

SAR 2004 ืื™ื—ืœื•ืง SAR 2004 ืื™ืจื™ืคืฉ

4 =ืื™ื—ืœื•ืงืŸื•ื™ืฆื— 1.7 =ืื™ืจื™ืคืฉืŸื•ื™ืฆื—

ืจื•ื™ื 6.4 :

ื”ืšืจืขืชื•ื’ืœืคืชื”

-SAR

ืงืœื—ื‘ืื™ื—ืœื•ืงื™ืžื‘ื•ืื™ืจื™ืคืฉืื™ืžื‘

ืชื ืฉื‘ืจืงืกื”ืชื•

2004

ื‘ . ื” ื™ื›ืจืขื• ืŸืจืชื ื” ื–ื•ื›ื™ืจ โ€“

SAR ืจืงืกื” ืชื•ื ืฉ ืšืฉืžื‘

ืŸื™ื‘ืž

ืื™ื™ื˜ื ื•ื•ืœืจื” ืื™ืจื˜ืžืจืคื” ืœื›

,

ืŸื•ื™ืฆื—ื” ืชื•ื ืชืฉื” ืชื ื’ื™ืฆื”ืœ ื•ื ืจื—ื‘

ืšืœื”ืžื‘

ืจืงืกื” ืชื•ื ืฉ

ื™ื“ื›

ืื™ื™ื•ื ื™ืฉื”ืชืืชื•ืืจื”ืœ

,

ื•ื–ื”ืคื•ืงืชื‘ืื™ืžื”ืชื•ื›ื™ืื‘ื•ืœื—ืฉ

,

ืœื•ืŸืจืชื ืœื”ืจื•ืฉืงื•ื–ืฉืœื›ื›

โ€“ SAR .

ื‘ ืจื•ื™ื

6.5

ื•ืž ืชื’ืฆ

ืŸืจืชื ื”ืŸื•ื™ืฆื—ืชื•ื ืชืฉื”

)

ืืž

"

ืง

/

ืœ

' (

ืŸืžื–ื” ืืข

.

ื” ืจื•ื™ื

ืืข ืื™ืจื™ืคืฉื”ื•ืื™ื—ืœื•ืงื” ืชืื’ื™ืฆืž

ืขืฆื•ืžืžื”ืœืฉืŸืงืชื”ืชื™ื™ื˜ืก

,

ืกืžืชืืื™ื’ืฆื™ื™ืžื•ืงืœื›ื“ื™ืœืื™ืจืคืกืžื”ืจืฉืื›

ืจืค

ื”ื ืฉื”ืชื•ืื‘ืื™ืžื’ื“ืžื”

)

ื“ืคืฉื”ื™ื ื•ืชื 

"

ืืœืŸ ืœื•ืกื ื›ื•ื” ืจื•ื™ื

ืื™

.(

ืœืขืื ืžื ื”ื ืฉื™

ื™

ืŸืžื–ื” ืืขืŸืจืชื ื”ื–ื•ื›ื™ืจื‘ื”ื™

,

ืšื ืŸื•ื™ืฆื— ื–ื•ื›ื™ืจ

ืชื ืฉื‘ืŸืจืชื ื”

2004

ืื™ื—ืœื•ืงื‘ ื”ื™ื”

7.7

ืืž

"

ืง

/

ืœ

'

-ื–ื•ื›ื™ืจ ืฉ ื•ื‘

ืืœืงื—ื”ืื™ืœื•ื“ื™ื’ื”ืชื™ื‘ืจืž

ื™

ืื™ื“ื™ืžืขืื™

.

ืช

ืื™ืžื’ื“ืžื‘ ืื™ืฉื™ื’ืจ ืื™ืœื•ื“ื™ื’ื‘ ื”ืขื™ื’ืค ืŸื›ืชื™

,

ืฉ

ืŸื•ื™ืฆื—ื” ืšืจืขืž ื”ื•ื‘ื’ื–ื•ื›ื™ืจื” ืื”ื‘

)

ื‘ืจืžื” ืื™ื›ืจืขื”

ื™ ืื™

ื™ื”ืจืงืกื”ืชื•ื ืฉืšืœื”ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืœืฉ

ื• ืื•ื—ืชื‘ ืœืฉ

19.0-10.2

ืืž

"

ืง

/

ืœ

'( .

(4)

94

0

2 4 6 8 10

1998 1999 2000 2001 2002 2003 2004

ื”ื ืฉ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ืื™ืž

ื‘

ืŸืจ

ืช

ื ื”

ื–ื•

ื›ื™

ืจ

ืŸื•ื™ืฆื— ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.5

:

ืจืชื ื”ื–ื•ื›ื™ืจืŸื•ื™ืฆื—ืชื•ื ืชืฉื” ืŸืžื–ื”ืืขืื™ืžื”ื’ื•ืกื‘ืชื•ืœืชื›ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸ

ื‘ ืจื•ื™ื

6.6

ื•ืž ื’ืฆ ื” ื™ื›ืจืข ืŸื•ื™ืฆื—

โ€“ SAR

ืชื•ื ืฉ ืšืœื”ืžื‘ ืื™ืžื” ืชื•ื™ื•ื›ื™ื ื™ืชืฉื‘ ืจืงืกื”

.

ื” ื™ื›ืจืข

โ€“ SAR

ืชื ืฉืžืชื™ืกื—ื™ืชื•ื‘ื™ืฆื™ืœืขืื™ืจืžื•ืฉ

1998

ื“ืขื•

2004 .

ืื™ื›ืจืขื” ื”

ืŸื•ื™ืฆื—ื”ืžืื™ื›ื•ืžื 

,

ืื™ื—ืœื•ืงื‘ืื™ืœื‘ืงืชืžื”

-ืื”ื‘ืŸื™ื

,

ื”ืืจื ื›

,

ืชื•ืขืงืจืงื”ื”ื ื‘ืžื‘ื”ืขืจื”ืื•ืจื’ืœ ื•ืืŸื›ืกืœื™ื“ื› ืชื™ืœืžืฉื—ื” ืชื•ื›ื™ืœื•ืžื”ืชืžืจื‘ ื‘ืฉื—ืชื”ื‘

ื”ื™ืงืฉื”ื” ื™ืž ืœืฉ

,

ืขืงืจืงื”ืœืฉืŸื•ืจืชื  ืขื•ื ืžืœื™ื“ื› ื”ื‘ื™ื“ืฉ

.

ืชื•ืžืจืœืฉ ืฃื•ืจื™ืฆื”

SAR

ืœืฉื• ืชื™ืกื—ื™ ืชื•ื›ื•ืžื 

ืข ืขืงืจืงืœืื™ื—ืœืžืœืฉ ืชืงืคืกืž ื”ืžืจืชืงืคืกื

"

ืื™ืขื ื•ืž ื”ื™ืงืฉื”ื” ื™ืžื™ ืชื

ื™ืื ืชืชืขืจื” ื”

ืจื•ื“ื™ื—ื• ื”ืคื™ื˜ืฉ

ื” ืฃืจื•ื—ื”ืชื ื•ืขื‘ืื™ืž

.

ืชืื–ืชืžื•ืขืœ

,

ืจืงืœืงื–ื ืื•ืจื’ืœืื™ืœื•ืœืขืื™ื”ื•ื‘ื’ื”ืื™ื›ืจืขื” ืขืง

)

ื‘ืจืžื”ืื™ื›ืจืขื” ื™

ืœืฉืื™

ื”ืšืจืข

-SAR

ืื•ื—ืชื‘ื”ื™ื”ืจืงืกื”ืชื•ื ืฉืšืœื”ืžื‘

10.0-4.4 )

ืืž

"

ืง

/

ืœ

'(

ยฝ

.(

0 1 2 3 4 5 6 7

1998 1999 2000 2001 2002 2003 2004

ื”ื ืฉ

ืื™ืž

ื‘

ืŸืจ

ืช

ื 

ืชื—ื™

ืค

ืก

ืกื—ื™

ืŸื•ื™ืฆื—

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.6 : ืšืจืขืŸื•ื™ืฆื—ืชื•ื ืชืฉื” SAR

(5)

95

3 . ื” ืšืจืข ืœืขื• ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืœืข ืื™ืขื™ืคืฉืžื” ืื™ืžืจื•ื’ื”

-SAR ืขืงืจืงื” ืšืชื—ื‘

ืื™ื’ืฆื•ืž ืŸืœื”ืœืฉ ืชื•ืืœื‘ื˜ื‘

ื”ื• ืŸืจืชื ื” ื–ื•ื›ื™ืจ ื™ื ื•ืชื ืœ ื•ื›ืจืขื ืฉ ืื™ื™ื˜ืกื™ื˜ื˜ืกื” ืื™ื—ื•ืชื™ื ื”

โ€“ SAR

ื‘ืจืื™ื™ื•ืœืชืื™ื ืชืฉืžื›

-ืื™ื™ืชื ืฉ

.

ืชื•ื‘ื›ืฉื™ืชืฉืœื•ืฉืขื ืื™ื—ื•ืชื™ื ื”

: 0 โ€“ 30

ื•

-30 โ€“ 60

ืก

"

ืž

.

ืื™ืžืจื•ื’ื”ื—ื•ืชื™ื 

,

ืšืจืขืœืขื•ืŸืจืชื ื”ื–ื•ื›ื™ืจืœืขืื™ืขื™ืคืฉืžื”

SAR

ืขืงืจืงื‘

,

ืื™ื ืคื•ืื™ื ืฉื‘ื”ืฉืขื 

:

1 .

ืงื™ื“ื‘ื• ื”ืžืืชื”

ืœืฉ ื”

ืงื–ื•ื— ืžื”

ืžืช ื™ื•ืฆื™ืžื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ื™ื•ื‘ื™ื ืœ ืœื“ื•

ื”ื™ื•ื•ืจื‘ ืขืงืจืงื” ืชืกื™

ื™ื›ืจืขื•

SAR

ืื™ื ื•ืฉืื™ืจื™ื‘ืกืžืื™ื ืชืฉืžื™ื“ื™ืœืข

.

2 .

ื”ื• ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืœืฉ ืื™ื›ืจืขื” ืŸื™ื‘ ื”ืื•ื•ืฉื”

โ€“ SAR

ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘

) 2004-1998 (

,

ืื™ืžื” ื’ื•ืกื‘ ืชื•ืœืชื›

)

ืื™ื—ืœื•ืงื• ืื™ืจื™ืคืฉ

( ,

ืชื•ืžื’ื“ื ื” ืชื•ืงืœื—ื” ืœืœื›ื‘

.

ืŸื› ื•ืžื›

,

ืŸื™ื‘ ื”ืื•ื•ืฉื”

ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘ ื•ืœืœื”ืื™ื›ืจืขื”

,

ืจืงื”ื’ื•ืกื‘ื• ืื™ืžื”ื’ื•ืกื‘ืชื•ืœืชื›

ืขืง

.

ื”ื ื™ื”ื•ื– ื”ืื•ื•ืฉื”

ืชื™ืชื•ื›ื™ื

)

ืื™ื ื•ืฉื” ืื™ืคื•ืจื™ืฆื‘ ืŸื˜ืงื” ืชื•ืงืœื—ื” ืจืคืกืž

ื•ื ื™ื

ืื™ื—ื•ืชื™ื  ืœืฉ ืขื•ืฆื™ื‘ ืจืฉืคืืž

ืื™ื™ื˜ืกื™ื˜ื˜ืก

(

ื”ื–ืงืจืคืšืฉืžื”ื‘ืื™ืขื™ืคื•ืžื”ืื™ืคืจื’ื‘ืชืจืื•ืชืžื•

.

1 .

ืœื“ื•ืž

ื‘ืฉื•ื—

ืจืงื—ืžื” ืชืคื•ืงืช ืชื ืฃื™ืงืžื” ืœื“ื•ืž

2004-1999 ,

ื‘ืจื•ืขืž ืœื“ื•ืž ืœืฉ ื”ื ื‘ืžื‘ ืฉื•ืžื™ืฉ ืšื•ืช ืชืื–

) Mixed Linear Model .(

ื” ืœืฉ ื•ื ื•ืจืชื™

ืœื“ื•ืž

ื•ืชื•ื™ื”ื‘ ืื˜ื‘ืชืž

ืื™ื ืฉื” ืœื› ื™ื ื•ืชื  ืœืข ืฉืœื•ื—

,

ืšื›

ืœื‘ื’ื•ืž ื™ื•ื˜ื™ื‘ ืชื•ืœื‘ืงืž ืชื•ื™ืžืขืคื“ื— ืชื•ืขืคื•ืชืฉ

,

ืœื‘ืงืœ ืชื•ื™ื•ืฉืขืื™ื ืฉื” ืšืจื•ืืœืชื•ื™ื‘ืงืข ืชื•ืขืคื•ืช ื•ืœื™ืื•

ืจืชื•ื™ื™ืชื•ืขืžืฉืžื™ื•ื˜ื™ื‘

.

ืœื›ืœืฉืื•ืฉืž

ืฉื™ ื™ืชื ืฉืŸื•ืชื 

2

ืื™ื™ืขืงืจืง ืื™ื ื•ืชื ืœืฉืื™ื˜ืก

โ€“

ื•ื™ืชืกื™ื ื•ืชื ื•ื‘ื™ื‘ืื™ื ื•ืชื 

โ€“

ืœื“ื•ืžื‘ืฉื•ื—

ื• ืขืงืจืงื‘ ืŸืจืชื  ืจื•ื‘ืข

โ€“ SAR ,

ืื™ื™ืขืงืจืง ืื™ื ื•ืชื  ืจื•ื‘ืข ืŸื”ื• ืื™ื™ื‘ื™ื‘ื ืื™ื™ืขืงืจืง ืื™ื ื•ืชื  ืจื•ื‘ืข ืŸื”

ื•ืชืก ื• ื™ ืื™

.

ืจื•ื›ื–ืœ ืฉื™

,

ืŸื—ื‘ื ืฉ ืื™ื ื•ืชื ื” ื˜ืกืœ ืงืจ ืชื•ื ื•ื›ื  ืœื“ื•ืžื” ืชื•ืืฆื•ืช ื™ื›

)

ืื™ื ืฉื” ืŸื™ื‘ ืŸืžื–ื” ื—ื•ื•ื˜

1999

ืœ

-2004 ,

ืŸืจืคืกืžื•ืชื•ื ื•ืชื ื”ืชื•ืงืœื—ื”

,

ืจืงืกื‘ื•ื ื—ื‘ื ืฉืื™ื ื•ืฉื”ืื™ืคื•ืจื™ืฆื”ื•

.(

ืื™ื›ืจืขื”

,

ื•ืžื” ื’ืฆ

ืŸืœื”ืœืฉ ืชื•ืืœื‘ื˜ื‘ ืื™

,

ืื™ืื˜ื•ื‘ืž

ื™ืจ ื™ื—ื ื•ืžื‘

ื• ืขืงืจืงื” ืชืกื™ืžืชื‘ ืŸืจืชื  ื–ื•ื›

-SAR ,

ืื™ื™ื•ืœืชืื™ื ืชืฉืžื›

,

ื ื”ืื™ืจื˜ืžืจืคื”ื™ื›ืจืขืฉืจื•ืฉื›ืœื“ื•ืžื‘ืื™ืขื™ืคื•ืžื•

" ืœ

1/2

)

ื•ืืŸืจืชื ื–ื•ื›ื™ืจ

SAR ) (

ืชืื–

ื”ืชืฉืขื ืฉ ื”ื™ืฆืžืจื•ืคืกื ืจื˜ืž ื”ืืฆื•ืชื›

ื™ื“ื›

ื” ืจื•ื–ื™ืค ืชื ืŸื™ื˜ืงื”ืœ

โ€“ (residuals .

ืŸืœื”ืœืฉ ืชื•ืืœื‘ื˜ื‘

ืื™ื ืชืฉืžื” ืื™ื’ืฆื•ืž

,

ืงื”ื‘ื•ืž ืจืฉืง ืฉื™ืฉ

) P =0.05

ื™ืœืžื™ืกืงืž

(

ื•ื›ื™ืจ ืŸื™ื‘ืœ ืื”ื™ื ื™ื‘

ื” ืšืจืขื• ืŸืจืชื ื” ื–

-SAR

ืขืงืจืงื” ืšืชื—ื‘

.

ืœืฉ ืšืจืขื”

R2

ืื˜ื‘ืž

ืœืฉ ื”ื™ืฆืœืจื•ืงื” ื“ื“ืž ืœืฉ ืขื•ื‘ื™ืจ

Pearson

ืื™ื›ืจืข ืŸื™ื‘

ื•ื–ื™ื—

ื• ืŸืจืชื ื” ื–ื•ื›ื™ืจืœ ืื™ื™

ืœ ื™ื›ืจืข ื”

-SAR

ืชื ืฉื‘ ืขืงืจืงื‘

2004 ,

ื ื” ืœื“ื•ืžื” ื™ืคืœ

"

ืœ

,

ืื™ื›ืจืข ืŸื™ื‘ืœ

ืชื ืฉื‘ ืื”ืœืฉืื™ื™ืชื™ืžื

2004 .

ืื™ื™ืชื•ื›ื™ืืื™ื™ื•ืœืชื™ืชืœื‘ืื™ื ืชืฉืž

,

ืจื•ื–ืื•ืื”ื™ืงืฉื”ืชื˜ื™ืฉื•ืžื›

ืœื•ื“ื™ื’

ื‘ื  ืื™ืœื“ ืื”ื™ื ื™ื‘

ื™ื•ืœืชื”ื”ื ืชืฉืžื” ื–ื•ื›ื™ืจืœืขืืชืขืคืฉื”ื‘

-ืงื”ื‘ื•ืžืื•ื”ืœื“ื‘ื”ื”ืื

,

ื”ื ื•ืฉืชื•ื ืขื™ืคื•ืช

ืœื“ื‘ื”ืŸื™ื™ืฆืœ

.

ืงื”ื‘ื•ืžื•ื ื™ืืœื“ื‘ื”ื”ื™ื›ืชื•ื ื™ื™ืฆืžืชื•ืžื•ื“ืชื•ื™ืชื•ื

.

(6)

96 ื . ืŸืจืชื  ื™ื ื•ืชื  ืจื•ื‘ืข ืœื“ื•ืž

ื•ื™ืชืกื‘ ืŸืจืชื  ืจื•ื‘ืข ืœื“ื•ืžื”

ืงืžื•ืขื”ืชื‘ื›ืฉืจื•ื‘ืขื•ืœื‘ืงืชื ืฉืชื•ืืฆื•ืชื”

30-0 ืก " ืž , ืŸืœื”ืœื“ื›ืŸื” : โ€ข ื™ื•ืœืชื”ื ืชืฉืž โ€“ ื•ื›ื™ืจ

ืขืงืจืงื”ืœืฉื”ื™ื•ื•ืจื”ื”ืกื™ืขื‘ืŸืจืชื ื”ื–

)

ื‘ื•ืฆื™ื™ืืฉืœื”ื™ืฆืžืจื•ืคืกื ืจื˜ื”ืชืฉืขื 

ืชื•ื ื•ืฉื”

( ,

ืŸืจืชื ื”ื–ื•ื›ื™ืจืฉืจื•ืฉื›ืœื“ื•ืžื‘ืขื™ืคื•ืžื™ื•ืœืชื”ื ืชืฉืžื›ืŸืจืชื ื”ื–ื•ื›ื™ืจ ืŸื›ืœื•

-1/2 ) ื–ื•ื›ื™ืจ ืŸืจืชื ื” .( โ€ข

ื”ื‘ื›ืฉื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืฉืจื•ืฉ ืชื ืื™ืจื™ื‘ืกืžื” ืื™ื ืชืฉืžื”

0 โ€“ 30 ืก " ืž ื ืฉ ื•ืืฆืž ืž ืื™ืงื”ื‘ื• ื”ืœื‘ื˜ื‘ืื™ืขื™ืคื•ืž 6.1 , ืื”ื• : o

ื’ืžื”ื•ืŸื“ื™ืกื”ื–ื•ื›ื™ืจ

ื  ืŸื•ื™ ืขืงืจืงื”ืชืกื™ืžืชื‘ ) ืืž " ืง / ืœ '( -CA+MG o

ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

) ืืž " ืง / ืœ '( โ€“ NA W o ื”ื‘ื’ื”ื”ืšืจืข - pH o

ืื™ื—ืœื•ืงื‘ืชื™ืงืฉื•ืžื”ืงืœื—ื”ืŸื”ื‘ืฉืื™ื ืฉื”ืจืคืกืž

) 0 -ืื™ืจื™ืคืฉืื™ืžื‘ ( โ€“ VETEC o

ืขืงืจืงื‘ ื™ื ื’ืจื•ืื”ืจืžื•ื—ื”ื–ื•ื—ื

S_POM

o

ืชื™ืชื ืฉื”ืืฉื’ื”ืชื ืž

) ืž " ืž ( -RAIN o ืจื•ื–ืื” ) ืŸื•ืคืฆ , ื” ืœื™ืœื’ืœืœื•ื› , ืขื•ืŸืœื•ื’ ืื™ืงืž ; ืฃื•ื—ื”ืจื•ืฉื™ืž , ืชืืœืœื•ื›ื” ื” ืœื™ืœื’ ื” ื™ื‘ืจืขืž , ืชื•ื‘ื•ื—ืจื•ื–ื›ืจืž ; ืื•ืจื“ ,

ื‘ื’ื ื•ืฉื™ื›ืœืชืืœืœื•ื›ื”

( โ€“ REGION o ื”ื™ืงืฉื”ื”ืชื˜ื™ืฉ ) ื”ืจื˜ืžื” , ื”ื–ืชื” , ืฃื•ื˜ืคื˜ ( โ€“ METH ื”ืœื‘ื˜ 6.1 : ื™ื•ืœืชื”ื ืชืฉืž : ืจืฉืจื•ืฉ ื™

ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›

) ืืž " ืง / ืœ ' ( -ื•ื™ืชืก , 0 โ€“ 30 ืก " ืž . ืกืž ืจืค

ืœื“ื•ืžื‘ืฉื•ืžื™ืฉื”ืฉืขื ืŸื”ื‘ืฉืชื•ื™ืคืฆืช

: 641 ; R2=0.7186 * ื”ื ืชืฉืž Effect ืื“ืงืž Estimate ืŸืงืช ืชืื™ื’ืฉ Standard Error ืฉืคื•ื— ืชื•ื’ืจื“ DF t Value F Value P Value ืšืชื•ื— 0.2075 0.3907 155 0.53 0.5962 Sa_CaMg ืŸื“ื™ืก ื–ื•ื›ื™ืจ + ืŸื•ื™ื ื’ืž 0.09418 0.003726 155 25.28 0.0001 < Na_W -ืŸืจืชื  ื–ื•ื›ื™ืจ 0.1374 0.009183 155 14.97 0.0001 < Sa_pH โ€“ ืจืข ืš ื”ื‘ื’ื” 0.1908 0.04806 155 3.97 0.0001 < Vetec โ€“ ืจืคืกืž

ื”ื™ืงืฉื” ืœืฉ ืื™ื ืฉ ืื™ื—ืœื•ืงื‘ 0.01197 0.00301 155 3.98 0.0001 S_POM โ€“ ื–ื•ื—ื ื•ื—ื” ืž ื™ื ื’ืจื•ืื” ืจ ืขืงืจืงื‘ 0.1382 0.05289 155 2.61 0.0099 RAIN โ€“ ืืฉื’ Region โ€“ ืจื•ื–ื 2 4.75 0.0099 ืื•ืจื“ 0.01429 a 0.1103 155 0.13 0.8970 ื–ื›ืจืž 0.1793 a 0.07087 155 2.53 0.0124 ืŸื•ืคืฆ 0 ab Meth -ืชื˜ื™ืฉ ื”ื™ืงืฉื” 2 4.82 0.0093 ื”ืจื˜ืžื” 0.1886 a 0.07747 155 2.43 0.0161 ื”ื–ืชื” 0.1596 a 0.05861 155 2.72 0.0072 ื”ืจื˜ืžื” 0 b

*

ืœืฉ ืšืจืขื”

R2

ื•ืงื” ื“ื“ืž ืœืฉ ืขื•ื‘ื™ืจ ืื•ื” ืœืฉ ื”ื™ืฆืœืจ

Pearson

ืื™ื›ืจืข ืŸื™ื‘ ื•ื–ื—

ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™ืขื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืœืฉ ืื™ื™

ืชื ืฉื‘ ืขืงืจืงื” 2004

ื ื” ืœื“ื•ืžื” ื™ืคืœ "

ืื™ื›ืจืขื” ืŸื™ื‘ืœ ืœ ื”

ืชื ืฉื‘ ื–ื•ื›ื™ืจื” ืœืฉ ืื™ื™ืชื™ืžื 2004

(7)

97 ื”ืœื‘ื˜ื‘ 6.1

ืื™ื™ื•ืœืช ื™ืชืœื‘ื” ืื™ื ืชืฉืžื”

,

ืœื“ื•ืžืœ ื•ืกื ื›ื  ืืœ ืจืฉื

,

ื•ื™ื”

:

ืขืงืจืงื‘ ืชื™ืกืจื—ื” ืชืœื•ื›ืช

-S_PCLAY ; ื”ืšืจืข โ€“ SAR ืื™ืžื‘ื•ืขืงืจืงื‘ ) ื‘ืื‘ ื•ื™ืชืกื‘ื•ื‘ื™ (

ืขืงืจืงื‘ืจื™ื’ื”ืชืœื•ื›ืชื•

-S_PGUIR . ื› ื•ืž ื› ืŸ ,

ื”ื‘ื›ืฉื‘ืŸืจืชื ื”ืœืขืงื”ื‘ื•ืžืŸืคื•ืื‘ื”ืขื™ืคืฉืžื›ื”ืืฆืžื ืืœื”ื™ืงืฉื”ื”ืชื ืž

0 โ€“ 30 ืก " ืž . ืœื™ืขืœืจื•ืžืื› ,

ื”ื™ื•ื•ืจื‘ืขืงืจืงื”ืชืกื™ืขื™ื•ืฆื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืฉืจื•ืฉืื”ื”ืœื‘ื˜ื‘ืื™ื›ืจืขื”

. ืค ื™ ืื™ื›ืจืขื”ืฉื•ืจ ืชืจืชื•ื›ื” ืชื—ืช " ืื“ืงืž " ืื˜ื‘ืž ืœืข ื™

ื•ื ื™ืฉ ืืข ืŸืจืชื ื” ื–ื•ื›ื™ืจื‘ ื”ื“ื™ืจื™ ื•ื ื”ื™

ื”ื ืชืฉืžื” ืœืฉ ื”ื“ื™ื—ื™ื‘ ื™

ื™ื•ืœืชื™ืชืœื‘ื” . ืžื’ื•ื“ืœ ื” : ืœืข ื™ ื‘ื”ื™ โ€“ 1 ืืž " ืง / ืœ '

ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื‘

) Na_W ( ื”ื™ื™ืœืขืœืื•ืจื’ืช ืœืฉ 0.1374 ืืž " ืง / ืœ ' ื‘

ื™ื•ืฆื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืฉืจื•ืฉ

ื”ื™ื•ื•ืจื”ื”ืกื™ืขื”

ื”ืœืฉ

ืขืงืจืง

,

ื”ื–ืšืจืขื”ืœืขื ืืื•ื

ืขื•ื‘ื™ืจื‘ -ืœืขืœื‘ืงื  ื™ ื”ื™ ืœืฉ 0.0189 ืืž " ืง / ืœ '

ื‘ ืŸืจืชื ื”ื–ื•ื›ื™ืจื‘

ื™ื•ื•ืจื”ื”ืกื™ืขื” ื™ื•ืฆื™ืž

ืœืฉ ื” ืขืงืจืงื” . ืœื› ืชืื– ,

ื™ืžื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจื‘ ื™ื•ื ื™ืฉื” ืŸืžื–ื‘ ืื™ืขื•ื‘ืง ืื™ืจืืฉื  ืื™ื™ื•ืœืช ื™ืชืœื‘ื”ืื™ื ืชืฉืžื” ืจืืฉืฉ ื™ืื ืชื‘

ื”ื™ืงืฉื”ื”

.

ืŸืจืชื ื”ื–ื•ื›ื™ืจ

,

ื”ืœื‘ื˜ื”ื™ื ื•ืชื ืžื”ืœื•ืขืฉื™ืคื›

,

ื•ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื‘ื™ื•ืœืช

ื‘

ื”ื™ืงืฉื”ื”ืชื•ื ืฉืšืฉืž

ืื™ื—ืœื•ืงื‘

.

ื•ื™ื ื’ืžื”ื• ืŸื“ื™ืกื”ื–ื•ื›ื™ืจ ืื’

ืŸ

ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ืœืขืื™ืขื™ืคืฉืžื› ื•ืืฆืžื 

,

ื”ื“ื™ืžื• ืชืžื™ื™ื•ืกืž

ื”ื‘ื’ื”ื”ืšืจืขืื’

โ€“

ืœ

ื”ืœื ืœื›

ื”ื™ื™ืœืขืœืฉืŸื•ื•ื™ื›ื‘ื”ืขืคืฉื”

ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื‘

.

ื™ื ื’ืจื•ืื”ืจืžื•ื—ื”ื–ื•ื—ื

ืชื—ื™ืคืกืœืฉื‘ื”ืืจื ื›ืŸืจืชื ื”ื–ื•ื›ื™ืจืชืืŸื™ื˜ืงืžืขืงืจืงื‘

ื”

ื™ื ื’ืจื•ืื”ืจืžื•ื—ื‘ื”ื—ื™ืคืกื™ืจืชืืœืŸืจืชื 

. ื‘ ืœื•ื“ื™ื’ื” ืจื•ื–ื ืื•ืจื“ื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ื”ื•ื‘ื’ ืชืžื•ืขืœ ืŸื•ืคืฆื” ,

ืืž ืšื•ืžื  ื”ื™ื”ื™ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ื–ื›ืจืžื‘ื•

ืจืฉ

ืŸื•ืคืฆื‘

,

ื”ืืจื ื›

,

ืื™ืžืฉื’ื” ื™ื•ื‘ื™ืจ ืœืฉื‘

ื–ื›ืจืžื‘ื• ืŸื•ืคืฆื‘ืฉ

ืื•ืจื“ื” ืชืžื•ืขืœ

.

ื”ืจื˜ืžื”ื” ืชืžื•ืขืœ ืฃื•ื˜ืคื˜ื”

ื”ื–ืชื”ื”ื•

,

ื™ื˜ืงืž ืŸ

ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืชื

,

ื”ืืจื ื›

,

ื‘ ืœืฉ

ื‘ ืงืžื•ืขืœ ืŸืจืชื ื” ืชืคื™ื˜ืฉ

ืชื•ื‘ืงืข

ืชื ืž ื–ื•ื›ื™ืจ

ื”ื™ืงืฉื”ื” ื‘

ืจืชื•ื™ืŸื˜ืง ื—ื˜ืฉ

, ื˜ื™ืฉืชืžื•ืขืœ ื• ื”ืจื˜ืžื”ื”ืช ื”ื–ืชื”ื”ื• , ืฉ ื”ื‘ ืŸ

ื—ื˜ืฉืœืขืชืจื–ืคืชืžืื™ืžื”ืชื ืž

ืœื•ื“ื’ . ื”ื‘ื›ืฉื‘ 30 โ€“ 60 ืก " ืž ืฃืกื•ื  ื“ื•ืข

ื”ื ื•ื™ืœืขื”ื”ื‘ื›ืฉื” ืชืžื•ืขืœ ืืจื•ื’

,

ื”ื™ืงืฉื”ื”ืชื ืž ืื•ื”ื•

.

ื”ืœื•ืข ื•ื–ืฉืœื›ื›

ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื ื˜ืงื”ืœืฉืŸื•ื•ื™ื›ื‘ื™ื•ื ื™ืฉื”ืืจื 

,

ืจืชื•ื™ื‘ืŸื˜ืง ืื•ื”ื”ื–ื™ื•ื ื™ืฉืฉืืœื

. ื”ืจืงืžืœื›ื‘ , ืจื‘ื•ื“ืž ื”ืŸื–ืืžื‘ ืกื™ื ื› ื” ื• ื” ืื™ืฆื™ ื” ื”ืœืฉ ื”ื‘ื›ืฉื”ืžืŸืจืชื  )

ื™ืคืœืขืฃื ืœืขืฉ

ื™

ื”ื™ืงืฉื”ื™ืžืชืžืจื‘ื”ื™

,

ืŸืจืชื ืื™ืœื™ื›ืžื”

,

ื”ื–ื•ื›ื™ืจ ืชืืชื•ืœืขื”ืœื”ืจื•ืžื

ืชื  ืจ ืขืงืจืงื‘ืŸ , ืจื•ืžืื›ืฉืืœื ,

ืŸืจืชื ื”ื–ื•ื›ื™ืจ ืœืขืขื™ืคืฉืžืืฉื’ื” ืืจื•ื’ืื’

ืขืงืจืงื‘ ( . ืœืฉืื™ืœื“ื•ืžื” ืŸืจืชื ื” ื•ื™ืชืกื‘ ืื™ืจื™ื‘ืกืž 72%-64%

ื”ื–ื•ื›ื™ืจืชืืฆื•ืชืž

ืŸืจืชื  ื‘

ื”ื™ื•ืฆื™ืž

ืœืฉื”ื™ื•ื•ืจื”ื”ืกื™ืข

ืขืงืจืงื” } ) ื–ื•ื›ื™ืจ ืŸืจืชื  ( 1/2 { .

ื‘ื™ื‘ืื‘ ืŸืจืชื  ืจื•ื‘ืข ืœื“ื•ืžื” ื‘ ื”ืœื‘ื˜ 6.2 ืž ื’ืฆื•

ื”ื‘ื›ืฉื”ืจื•ื‘ืขื‘ื™ื‘ืื‘ืœื“ื•ืžื”

0 โ€“ 30

ืก

"

ื›ื™ืจืฉืจื•ืฉืœืฉืž

ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•

.

โ€ข

ืื™ื ืชืฉืžื”

,

ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืชื ืื™ืจื™ื‘ืกืžื”

, ืฉ ืื™ืงื”ื‘ื•ืž ื•ืืฆืžื  , ื”ืœื‘ื˜ื‘ ืื™ืขื™ืคื•ืž 6.2 , ืื”ื• : o

ื”ื™ืงืฉื”ื”ื™ืžื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

) ืืž " ืง / ืœ ' ( โ€“ NA_ W o

ื ื’ืžื”ื•ืŸื“ื™ืกื”ื–ื•ื›ื™ืจ ืŸื•ื™ ืขืงืจืงื”ืชืกื™ืžืชื‘ ) ืืž " ืง / ืœ '( -CA+MG o

ืชื™ืชื ืฉื”ืืฉื’ื”ืชื ืž

) ืž " ืž ( RAIN o

ืขืงืจืงื‘ืชื™ืกืจื—ื”ืชืœื•ื›ืช

(%) โ€“ S_PCLAY

o

ื”ื–ื•ื—ื

ืขืงืจืงื‘ ื™ื ื’ืจื•ืื”ืจืžื•ื—

(8)

98 ื”ืœื‘ื˜ 2 . 6 : ื™ื•ืœืชื”ื ืชืฉืž :

ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืฉืจื•ืฉ

) ืืž " ืง / ืœ ' ( -ื‘ื™ื‘ื , 0 -30 ืก " ืž -ืž ืจืคืก

ืœื“ื•ืžื‘ืฉื•ืžื™ืฉื”ืฉืขื ืŸื”ื‘ืฉืชื•ื™ืคืฆืช

: 633 ; R2=0.4521 * ื”ื ืชืฉืž Effect ืื“ืงืž Estimate ืŸืงืช ืชืื™ื’ืฉ Standard Error ืฉืคื•ื— ืชื•ื’ืจื“ DF t Value F Value P Value ืšืชื•ื— 1.1245 0.1364 162 8.25 0.0001 < Na_W ืื™ืžื‘ ืŸืจืชื  ื–ื•ื›ื™ืจ 0.1047 0.0081 162 12.77 0.0001 < SS_CaMg

ืŸื•ื™ื ื’ืžื• ืŸื“ื™ืก ื–ื•ื›ื™ืจ ืขืงืจืงื‘ 0.0503 0.0042 162 11.79 0.0001 < Rain ืชื™ืชื ืฉื” ืืฉื’ื” ืชื ืž 0.0007 0.00009 162 7.54 0.0001 < S_PCLAY ื–ื•ื—ื ืชื™ืกืจื—ื” ืขืงืจืงื‘ 0.0100 0.0013 162 7.25 0.0001 < S_POM

ื™ื ื’ืจื•ืื” ืจืžื•ื—ื” ื–ื•ื—ื ืขืงืจืงื‘ 0.1509 0.0576 162 2.62 0.0097 ir_tot ื”ื™ืงืฉื”ื” ืชื ืž 0.0002 0.0001 162 2.05 0.0416

*

ืœืฉ ืšืจืขื”

R2

ืœืฉ ื”ื™ืฆืœืจื•ืงื” ื“ื“ืž ืœืฉ ืขื•ื‘ื™ืจ ืื•ื”

Pearson

ืื™ื›ืจืข ืŸื™ื‘ ื–ื—

ื•ืจื” ื”ืกื™ืขื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืœืฉ ืื™ื™ื• ืœืฉ ื”ื™ื•

ืชื ืฉื‘ ืขืงืจืงื” 2004

ื ื” ืœื“ื•ืžื” ื™ืคืœ "

ืื™ื›ืจืขื” ืŸื™ื‘ืœ ืœ ื”

ืชื ืฉื‘ ื–ื•ื›ื™ืจื” ืœืฉ ืื™ื™ืชื™ืžื 2004

.

ื™ื›ืจืข ืœื“ื•ืžืœ ื•ืกื ื›ื  ืืœ

SAR ,

ืขืงืจืงื‘ ืจื™ื’ ืชืœื•ื›ืช

,

ื”ื™ืงืฉื”ื” ืชื•ื˜ื™ืฉื• ืœื•ื“ื™ื’ื” ื™ืจื•ื–ื

. ืชืขืคืฉื” ืื’ ื” ื•ืŸื“ื™ืก ื” ื•ื™ื ื’ืž ืŸ ื”ื‘ื’ื”ื”ืšืจืขื• ) pH ( ืข

ืชืงื”ื‘ื•ืžื”ืืฆืžื ืืœืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืœ

.

ื”ืขืคืฉื”ื”ื ืฉื™ืฃืจื•ื—ื”ื™ืžืฉื’ืœ

, ื› ืŸื‘ื•ืž , ื›ื‘ ื™

ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื ื˜ืงื”ืœืฉืŸื•ื•

. ืœืฉืื™ืœื“ื•ืžื” ืŸืจืชื ื” ื‘ื™ื‘ืื‘ ืื™ืจื™ื‘ืกืž ื› -45%-44%

ื”ื–ื•ื›ื™ืจ ืชืืฆื•ืชืž

ืŸืจืชื  ื‘ ื”ื™ื•ืฆื™ืž ื”ื™ื•ื•ืจื”ื”ืกื™ืข ืขืงืจืงื” ืœืฉ } ) ื–ื•ื›ื™ืจ ืŸืจืชื  ( 1/2 { .

ืงืžื•ืข ืœืฉ ืœื“ื•ืžื‘

60-30

ืก

"

ืื™ืจื™ื‘ืกืž ืื™ื ืชืฉืž ื“ื•ืข ื•ืกื ื›ื ืž

: pH

ืื™ื—ืœื•ืงื‘ ื”ื™ืงืฉื”ื” ืชืœื™ื—ืชืž ืŸืžื–ื•

.

ื” ื”ืœื•ืขืฉ ืœื›ื›

-pH

ืงืฉื•ืž ื”ืงืœื—ื”ื•

ืจืชื•ื™ ืšืฉื•ืžืž ืŸืžื– ืช

ืื™ื—ืœื•ืงื‘

,

ื”ืœืขื™ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

.

ืงืžื•ืขื‘ ื•ื™ืชืกื‘ ืŸืจืชื ื” ืœืฉ ืœื“ื•ืžื” ืชื ืื™ื•ื•ืฉืž ืื

30-0 ืก " ืž ืœ ื”ื– ื‘ื™ื‘ืื” ืœืฉ ,

ืื“ืงืž ื™ื› ืื™ืื•ืจ

ืจื‘ืกื”ื”

) R2 (

ื‘ื™ื‘ืื‘ ืจืฉืืž ื•ื™ืชืกื‘ ื”ื‘ืจื”ื‘ ื”ื•ื‘ื’

.

ืŸื›ืชื™ ืฉ

ืจืชื•ื™ืฉ ื”ื“ื‘ื•ืขื”ืž ืขื‘ื•ื  ื”ื–ื” ืœื“ื‘ื”ื”

ืœื•ื›ื™ื•ืœืื™ืงื™ื ืขืžื•ืœื“ื•ืžืœื•ืกื ื›ื ืื™ืจื™ื‘ืกืžืื™ื ืชืฉืž

ืช ื•ื–ื™ื— ื‘ื•ื˜ื™ ืจืชื•ื™ื” . ื‘ . ืŸืจืชื  ืชื—ื™ืคืก ืกื—ื™ ืจื•ื‘ืข ืœื“ื•ืž ืจื•ื‘ืข ืœื“ื•ืžื” SAR ื•ื™ืชืกื‘ โ€ข ื”ืœื‘ื˜ื‘ 6.3

ื™ื•ืœืชื” ื”ื ืชืฉืžื” ืŸื™ื‘ ืื™ืงื”ื‘ื•ืž ื•ืืฆืžื ืฉ ืื™ืจืฉืงื” ืื™ืขื™ืคื•ืž

-ืฉืจื•ืฉ

SAR

ื‘ื”ืื™ื ืชืฉืžื”ืŸื™ื‘ืœื”ื™ื•ื•ืจื”ืขืงืจืงื”ืชืกื™ืขื™ื•ืฆื™ืžื‘

ืื™ื™ื•ืœืชื™ืชืœ ื‘ื›ืฉื‘ ื” 60-30 ืก " ืž .

ืื™ืื‘ื”ืื™ื ืชืฉืžื”ืœื“ื•ืžืœื•ืกื ื›ื 

: o SAR ื”ื™ืงืฉื”ื”ื™ืžื‘ } ) ืืž " ืง / ืœ '( ยฝ { โ€“ W_SAR o

ื™ืจื•ืœื›ืŸื“ื™ืกื‘ื™ื•ืฆื™ืžื‘ืขืงืจืงื‘ืŸื’ืœืฉืื–ื•ื›ื™ืจ

(9)

99 o

ืื™ื—ืœื•ืงื‘ื”ื™ืงืฉื”ื”ืชื•ื ืฉ

โ€“ VETEC o ื”ื™ืงืฉื”ื”ืชื ืž ื” ืชื™ืชื ืฉ ) ืž " ืง \ ื“ ' ( โ€“ ir_tot o

ืื™ืžื‘ ืŸื’ืœืฉืื”ื–ื•ื›ื™ืจ

) ืž " ื’ \ ืœ '( โ€“ K_DIS_W o ืœื•ื“ื™ื’ืจื•ื–ื ) ืŸื•ืคืฆ , ื”

ืœื™ืœื’ืชืืœืœื•ื›

, ืื™ืงืžืขื•ืŸืœื•ื’ ; ืฃื•ื—ื”ืจื•ืฉื™ืž , ืชืืœืœื•ื›ื” ื” ืœื™ืœื’ ื” ื™ื‘ืจืขืž , ืชื•ื‘ื•ื—ืจื•ื–ื›ืจืž ; ืื•ืจื“ , ื›ื” ื‘ื’ื ื•ืฉื™ื›ืœืชืืœืœื•

( โ€“ REGION o ื”ื™ืงืฉื”ืชื˜ื™ืฉ -METH ื”ืœื‘ื˜ 3 . 6 : ื™ื•ืœืชื”ื ืชืฉืž : ืฉืจื•ืฉ SAR ืขืงืจืงื‘ -ื‘ ื•ื™ืชืก , 30 โ€“ 60 ืก " ืž , ืกืž ืจืค

ื”ืฉืขื ืŸื”ื‘ืฉืชื•ื™ืคืฆืช

ืœื“ื•ืžื‘ืฉื•ืžื™ืฉ

: 587 , R2= 0.5319 * ื”ื ืชืฉืž Effect ืื“ืงืž Estimate ืŸืงืช ืชืื™ื’ืฉ Standard Error ืฉืคื•ื— ืชื•ื’ืจื“ DF t Value F Value P Value ืšืชื•ื— 1.9177 0.1205 157 15.91 0.0001 < SAR_W SAR ื”ื™ืงืฉื”ื” ื™ืžื‘ 0.1311 0.01377 157 9.52 0.0001 < K_w โ€“ ื–ื•ื›ื™ืจ ืŸื’ืœืฉื ื‘ ืขืงืจืง 0.00177 0.000432 157 4.09 0.0001 < VETEC ืจืคืกืž ื”ื‘ืฉ ืื™ื ืฉื” ืŸ ื”ืงืœื—ื”

ืื™ื—ืœื•ืง ื™ืžื‘ ืชื™ืงืฉื•ืž 0.01302 0.002747 157 4.74 0.0001 < Ir_tot โ€“ ืชื ืž ืฉื” ื”ื™ืงืฉื”ื” ืชื™ืชื  0.00041 0.000104 157 3.93 0.0001 < K_DIS_W

ื™ืžื‘ืŸื’ืœืฉืื–ื•ื›ื™ืจ ื”ื™ืงืฉื”ื” 0.001958 0.000973 157 2.01 0.0460 Region ืœื•ื“ื™ื’ ืจื•ื–ื 2 8.68 0.0003 ืื•ืจื“ 0.07957 a 0.09058 157 0.88 0.3810 ื–ื›ืจืž 0.1831 -b 0.05745 157 3.19 0.0017 ืŸื•ืคืฆ 0 a Meth ื”ื™ืงืฉื”ืชื˜ื™ืฉ 2 3.60 0.0295 ื”ืจื˜ืžื” a 0.1301

0.07208 157 1.80 0.0730 ื”ื–ืชื” 0.1342 ab 0.05236 157 2.56 0.9524 ืฃื•ื˜ืคื˜ 0 b

*

ืœืฉ ืšืจืขื” R2

ืœืฉ ื”ื™ืฆืœืจื•ืงื” ื“ื“ืž ืœืฉ ืขื•ื‘ื™ืจ ืื•ื”

Pearson

ืื™ื›ืจืข ืŸื™ื‘ ื–ื—

ื” ืœืฉ ืื™ื™ื•

-SAR

ืขืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™ืขื‘

ืชื ืฉื‘ 2004 ืœ ื ื” ืœื“ื•ืžื” ื™ืค "

ืื™ื›ืจืขื” ืŸื™ื‘ืœ ืœ ื” ืชื ืฉื‘ ืื™ื™ืชื™ืžื 2004 .

ืœื“ื•ืžืœ ื•ืกื ื›ื  ืืœ

:

ื•ื“ ื–ื•ื›ื™ืจ

โ€“ ื”ืžื—ืค ืื™ืžื‘ โ€“ bicarb-w ,

ืขืงืจืงื‘ืจื™ื’ ืชืœื•ื›ืช

-S_PGUIR , ืชืœื•ื›ืช ืขืงืจืงื‘ ืชื™ืกืจื—ื” โ€“ S_PCLAY , ื”ื‘ื’ื”ื” ืšืจืข โ€“ pH ,

ื™ื ื’ืจื•ืื” ืจืžื•ื—ื” ืชืœื•ื›ืช

-S_POM , ืชื ืž ืชื™ืชื ืฉื”ืืฉื’ื” -RAIN

ื”ื™ืงืฉื”ื”ืชื ืžืŸื™ื‘ืกื—ื™ื”ื•

ืœ ืชื•ื“ืืชื”

-ir_ev .

ื” ืชืืœืขื” ืŸื•ื•ื™ื›ื‘

โ€“ SAR

ืื™ืœืขื•ืค

ืื™ืื‘ื” ืื™ืžืจื•ื’ื”

:

ืื™ืžื‘ ืŸืจืชื ื” ืชื—ื™ืคืก ืšืจืข

,

ืื™ื ืฉื” ืจืคืกืž

ื”ื™ืงืฉื”ื‘

ืื™ืžื‘ ืŸื’ืœืฉืื”ื–ื•ื›ื™ืจื•

.

ื™ื›ืจืข ืชื ื˜ืงื”ืœ

ื”

-SAR

ืชืžื•ืขืœ ืฃื•ื˜ืคื˜ื‘ ื”ื™ืงืฉื”ื”ืชื˜ื™ืฉ ืชืœืขื•ืค

ื”ืจื˜ืžื”ื‘ื”ื™ืงืฉื”ื”

.

ืชืื–ืชืžื•ืขืœ

,

ื‘ื”ื ื•ืฉื”ื ื™ืื”ื–ืชื”ื”ืŸืื›

(10)

100 ื™ื›ืจืข ืื™ืœื‘ืงืชืž SAR ื™ื›ื•ืžื  ืจืชื•ื™ ื , ื”ืืจื ื› , ืฉื‘

ืชื•ื™ืœื•ื—ื” ืชื•ืขืงืจืงื”ื• ืื™ืžืฉื’ื” ืชืžืจ ืœ

,

ืชืžื•ืขืœ

ืŸื•ืคืฆื‘ืชื•ื™ืชื™ืกืจื—ื”ืชื•ืขืงืจืงื”ื•ืื•ืจื“ื‘ืื™ืžืฉื’ื”ื˜ื•ืขื™ืž

. ืœืฉ ืœื“ื•ืžื” ื” -SAR , ื•ื™ืชืกื‘ , ืจื™ื‘ืกืž 53% ืชืืฆื•ืชืž ื” -SAR ื‘ ื” ื™ื•ืฆื™ืž

ืขืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื”ื”ืกื™ืข

} ) SAR ( 1/2 { .

ืงืžื•ืข ืœืฉ ืœื“ื•ืžื‘

30-0 ืก " ืž ืชืœืœื›ื  ื› ื ืชืฉืž ื” ืจื™ื‘ืกืž

ืขืงืจืงื‘ื™ื ื’ืจื•ืื” ืจืžื•ื—ื”ืชืœื•ื›ืช

ืœืœื›ื  ืืœ ืšื

ืขืงืจืงื‘ ืŸื’ืœืฉืื” ื–ื•ื›ื™ืจ

.

ืœืข ื™

ื™ื ื’ืจื•ืื” ืจืžื•ื—ื” ืชืœื•ื›ืชื‘ ื”ื™

ื”ื ื™ื˜ืงืž

ื” ืšืจืข ืชื

-SAR

ืขืงืจืงื‘ืœื‘ืงืชืžื”

.

ืงืจืจื™ื‘ืกืžื”ื–ืœื“ื•ืž

38% ื”ืšืจืขืž -SAR ืขืงืจืงื”ืœืฉ . ืจื•ื‘ืข ืœื“ื•ืžื” SAR ื‘ื™ื‘ืื‘ โ€ข ื”ืœื‘ื˜ื‘ 6.4

ื™ื•ืœืชื” ื”ื ืชืฉืžื” ืŸื™ื‘ ืื™ืงื”ื‘ื•ืž ื•ืืฆืžื ืฉ ืื™ืจืฉืงื” ืื™ืขื™ืคื•ืž

-ืฉืจื•ืฉ

SAR

ื”ื™ื•ื•ืจื”ืขืงืจืงื”ืชืกื™ืขื™ื•ืฆื™ืžื‘

,

ืŸื™ื‘ืœ

ื”ื‘ื›ืฉื‘ืื™ื™ื•ืœืชื™ืชืœื‘ื”ืื™ื ืชืฉืžื”

30-0 ืก " ืž .

ืื™ืื‘ื”ืื™ื ืชืฉืžื”ืœื“ื•ืžืœื•ืกื ื›ื 

: o SAR ื”ื™ืงืฉื”ื”ื™ืžื‘ } ) ืืž " ืง / ืœ '( ยฝ { โ€“ W_SAR o

ืขืงืจืงื‘ืชื™ืกืจื—ื”ืชืœื•ื›ืช

(%) โ€“ S_PCLAY o ืืฉื’ ) ืž " ืž ( -RAIN o

ืขืงืจืงื‘ื™ื ื’ืจื•ืืจืžื•ื—ืชืœื•ื›ืช

(%) โ€“ S_POM

o

ืื™ื—ืœื•ืงื‘ื”ื™ืงืฉื”ื”ืชื•ื ืฉ

โ€“ VETEC

o

ื™ืจื•ืœื›ืŸื“ื™ืกื‘ื™ื•ืฆื™ืžื‘ืขืงืจืงื‘ืŸื’ืœืฉืื–ื•ื›ื™ืจ

) ืž " ื’ \ ืง " ื’ ( โ€“ K o ื”ื‘ื’ื”ื”ืšืจืข - PH ื”ืœื‘ื˜ 4 . 6 : ื™ื•ืœืชื”ื ืชืฉืž : ืฉืจื•ืฉ SAR ืขืงืจืงื‘ ื‘ ื‘ื™ื‘ื , 0 โ€“ 30 ืก " ืž , ืกืž ืจืค ื”

ื”ืฉืขื ืŸื”ื‘ืฉืชื•ื™ืคืฆืช

ืœื“ื•ืžื‘ืฉื•ืžื™ืฉ

: 656 , R2=0.4453 * ื”ื ืชืฉืž Effect ืื“ืงืž Estimate ืŸืงืช ืชืื™ื’ืฉ Standard Error ืฉืคื•ื— ืชื•ื’ืจื“ DF t Value F Value P Value ืšืชื•ื— 0.8389 0.2624 164 3.20 0.0017 SAR_W SAR ืื™ืžื‘ 0.07767 0.001144 164 6.79 0.0001 < S_PCLAY ื–ื•ื—ื ืขืงืจืงื‘ ืชื™ืกืจื—ื” 0.01092 0.001131 164 9.66 0.0001 < Rain โ€“ ืืฉื’ ืชื ืž

ืชื™ืชื ืฉ 0.00041 0.00007 164 5.81 0.0001 < S_POM โ€“ ืชืœื•ื›ืช

ืขืงืจืงื‘ ื™ื ื’ืจื•ื ืจืžื•ื— 0.2159 0.04764 164 4.54 0.0001 < VETEC -ืž ืจืคืก ื”ื‘ืฉ ืื™ื ืฉื” ืŸ ื”ืงืœื—ื” ืื™ื—ืœื•ืงื‘ ืชื™ืงืฉื•ืž 0.00877 0.00213 164 4.12 0.0001 < K โ€“ ืŸื’ืœืฉื ื–ื•ื›ื™ืจ

ืขืงืจืงื‘ 0.00053 0.00259 164 2.04 0.0433 pH โ€“ ื”ื‘ื’ื”ืšืจืข 0.08093 0.03510 164 2.31 0.0224

*

ืœืฉ ืšืจืขื” R2

ืœืฉ ื”ื™ืฆืœืจื•ืงื” ื“ื“ืž ืœืฉ ืขื•ื‘ื™ืจ ืื•ื”

Pearson

ืื™ื›ืจืข ืŸื™ื‘ ื–ื—

ื” ืœืฉ ืื™ื™ื•

-SAR

ืขื‘ ืขืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™

ืชื ืฉื‘ 2004 ื ื” ืœื“ื•ืžื” ื™ืคืœ "

(11)

101

ืœื“ื•ืžืœ ื•ืกื ื›ื  ืืœ

:

ื•ื“ ื–ื•ื›ื™ืจ

โ€“

ื”ืžื—ืค

โ€“ Bicarb_w ,

ืขืงืจืงื‘ ืจื™ื’ ืชืœื•ื›ืช

โ€“ S_PGUIR ,

ื–ื•ื›ื™ืจ

ื‘ ืŸื’ืœืฉืื”

ืื™ืž

โ€“ K_DIS_W ,

ื•

ื”ื™ืงืฉื”ื”ืชื ืž ืŸื™ื‘ ืกื—ื™ื”

ืœ ืชื•ื“ืืชื”

โ€“ IR_EV .

ื›

"

ื”ืขืคืฉื”ืŸื™ื ื›

ืœื•ื“ื™ื’ื”ื™ืจื•ื–ืืœืชืงื”ื‘ื•ืž

-REGION

ื• ืœ

ื”ื™ืงืฉื”ื”ืชื•ื˜ื™ืฉ

-METH .

ื”ืฉ ืœื›ื›

-SAR

ื• ืื™ืžื‘

ื‘

ืื™ืœื•ืข ืื™ื—ืœื•ืงื‘ื”ื™ืงืฉื” ืœืฉืจืคืกืž

,

ื” ื”ืœื•ืข ืšื›

-SAR

ืขืงืจืงื‘

.

ืชืœื•ื›ืช

ืœืข ืœืข ื”ืขื™ืคืฉืž ืขืงืจืงื‘ ืชื™ืกืจื—ื”

ื™

ื” ืชืžืจื‘ ื”ื™

โ€“ SAR ,

ื”ื ื™ื˜ืงืž ื™ื ื’ืจื•ืื” ืจืžื•ื—ื” ืชืœื•ื›ืชืฉ ื“ื•ืขื‘

ื•ืชื•ื

,

ื”ืืจื ื›

,

ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืœืข ื™ื ื’ืจื•ืื” ืจืžื•ื—ื” ืชืขืคืฉื” ืชื•ืขืฆืžืื‘

ื™ื“ื™ ืœืข ื”ื—ื™ืคืก

.

ื™ืœืข ื™ ื” ืšืจืขื‘

ื” ืชื ื”ืœืขืž ืขืงืจืงื” ืœืฉ ื”ื‘ื’ื”ื”

โ€“ SAR

ื•ื“ ื™ื–ื•ื›ื™ืจ ืœืข ืื™ืœืขื•ืคื” ืื™ื ื•ื ื’ื ืž ืชื•ืขืฆืžืื‘

โ€“

ื”ืžื—ืค

ืขืงืจืงื‘

.

ืœืฉ ืœื“ื•ืžื”

ื”

-SAR

ื‘ื™ื‘ืื‘ ืจื™ื‘ืกืž

44%

ืชืืฆื•ืชืž ื”

-SAR

ื‘

ื” ื™ื•ืฆื™ืž

ืขืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™ืข

} ) SAR (

1/2

{ .

ืงืžื•ืข ืœืฉืœื“ื•ืžื‘

60-30

ืก

"

ื›ื  ืืœ ืž

ื•ืœืœ

ื™ื ื’ืจื•ืื”ืจืžื•ื—ื” ืชืœื•ื›ืชืื™ืจื™ื‘ืกืžืื™ื ืชืฉืžื›

ืืฉื’ื”ื• ืขืงืจืงื‘

.

ืชืื– ืชืžื•ืขืœ

,

ื›ื  ื•ืœืœ

ืื™ืžื‘ ืŸื’ืœืฉืื” ื–ื•ื›ื™ืจ ืื™ืจื™ื‘ืกืž ืื™ื ืชืฉืžื›

,

ืชื˜ื™ืฉื• ืจื•ื–ืื”

ื”ื™ืงืฉื”ื”

.

ืงืจืจื™ื‘ืกืžื”ื–ืœื“ื•ืž

ื›

-31%

ื”ืšืจืขืž

-SAR

ืขืงืจืงื”ืœืฉ

ื‘ื™ื‘ืื‘

.

4 . ืื™ืจื™ืคืฉ ืื™ืžื‘ ืชื•ืงืฉื•ืžื” ืชื•ืงืœื— ืŸื™ื‘ืœ ืื™ื—ืœื•ืง ื™ืžื‘ ืชื•ืงืฉื•ืžื” ืชื•ืงืœื— ืŸื™ื‘ ื”ืื•ื•ืฉื”

ื”ื™ื›ืจืขื•ืŸืจืชื ื™ื–ื•ื›ื™ืจืœืฉืชื•ืื•ื•ืฉื”ื”ื ื’ืฆื•ืชื”ื– ืงืจืคื‘

-SAR

ื™ืคืœ

ืงื”ืชืงื•ืœื—

ืชื•ืฆื•ื‘ืงืœืชื•ืขืงืจ

ื™ืคืœืข

ืื™ืžื” ื™ื’ื•ืก ื™ืคืœื• ืŸื”ื‘ืฉ ืชื™ืกืจื—ื” ืชืœื•ื›ืช

.

ืืืชื”ื‘ ืœ

ืชื™ืกืจื—ื” ืชื•ืžืจ

,

ื•ืงืœื•ื—

ืชื•ืขืงืจืงืœ ืชื•ืขืงืจืงื”

ืŸื”ื‘ืฉ

ื“ืขืชื™ืกืจื—ืชืœื•ื›ืช

15% ;

ืชื•ืขืงืจืงืœ ืŸื”ื‘ืฉ

ืชืœื•ื›ืช ื”

ืŸื™ื‘ื”ืขื ืชื™ืกืจื—

15%

ืœ

-40% ;

ืœื• ืชื•ืขืงืจืง

ืŸื”ื‘ืฉ ืชืœื•ื›ืช ื”

ืž ื”ื”ื•ื‘ื’ ืชื™ืกืจื—

โ€“ 40% .

ืื™ื’ื•ืก ื™ื ืฉืž ืื” ื”ื– ื—ื•ืชื™ื ื‘ ืื™ืžื”

:

ืื™ื—ืœื•ืงื• ืื™ืจื™ืคืฉ

.

ื ื”

ื‘ืจืกื™ืกื‘ืœืขืื•ื”ื—ื•ืชื™

-ื™ืชื ืฉ

,

ืŸืจืชื ื”ื™ื–ื•ื›ื™ืจืœืฉืื™ืขืฆื•ืžืžืื™ืขื™ืคื•ืžืŸืœื”ืœืฉืื™ืจื•ื™ืื”ืœื›ื‘ืจืฉืื›

ื”ื™ื›ืจืข ื•ืืื™ื™ื˜ื ื•ื•ืœืจื”

โ€“ SAR

ื”ืžื™ืืชืžื”ืŸืงืชื” ืชื™ื™ื˜ืกืืข

.

ื”ื‘ื›ืฉืœื”ืฉืขื  ื—ื•ืชื™ื ื”

0 โ€“ 120

ืก

"

ืž

,

ื”ื—ื ื”ื‘

,

ืŸืžื–ื”ื™ื›

)

ืจืงืก ืชื•ื ืฉืฉืฉ

(

ื•ื ื™ืฉืŸื•ื—ื‘ืœืจืฉืคืืž

ื”ื–ืงืžื•ืขื‘ืื™ืœื“ื‘ื”ื•ืื™ื™

.

ืŸื™ืื™ื›ืจื•ื›ื–ืœื‘ื•ืฉื—

ื“ื‘ืœื‘ืชื•ืžื’ืžืœืฉืชื•ืื•ื•ืฉื”ืŸืื›ืชื•ื’ืฆื•ืžื•ืืœืžื™ื˜ืกื™ื˜ื˜ืกื—ื•ืชื ืŸืื›

.

ืจื•ื™ืื‘

6.7

ื•ื™ืชืกื‘ื”ื™ื•ื•ืจื”ื”ืกื™ืขื”ื™ื•ืฆื™ืžื‘ืŸืจืชื ื”ื™ื–ื•ื›ื™ืจื‘ืื™ื™ื•ื ื™ืฉื”ืื™ื’ืฆื•ืž

ืšืœื”ืžื‘

ืขืื™ื ืฉื”

"

ื’ื•ืกืค

ื–ื•ื—ืืŸื”ื‘ืฉืชื•ืœืงืชื•ืขืงืจืงื‘ืื™ืžื”

ื”

ืž ืšื•ืžื ืชื™ืกืจื—

โ€“ 15% .

ืงื‘ ืจืงืกื” ืชื•ื ืฉื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ืชื•ืขืงืจ

ืื™ืจื™ืคืฉืื™ืžื‘ืชื•ืงืฉื•ืžื”ืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืžื”ื•ื‘ื’ืื™ื—ืœื•ืงื‘ืชื•ืงืฉื•ืžื”

.

ืŸืจืชื ื”ื™ื–ื•ื›ื™ืจื‘ื”ื“ื™ืจื™

ืชืจื›ื™ื  ื‘ื™ื‘ืื”ืชื ื•ืขื‘ืื™ืžื”ื™ื’ื•ืก ื™ื ืฉื‘

ื‘

ืฃืจื•ื—ื”ื™ืžืฉื’ืžื”ืคื™ื˜ืฉืชื•ื‘ืงืขื‘ ืจื•ืจื™ื‘

.

ื”ืืจื 

,

ืชื•ืขืงืจืงื™ื›

ืื™ื—ืœื•ืงื™ืžืืœืœืชื•ืขืงืจืงืœืกื—ื™ื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื‘ื”ื™ื™ืœืขืœืฉืšื™ืœื”ืชืชื•ืจื‘ื•ืขืื™ื—ืœื•ืง ื™ืžื‘ืชื•ืงืฉื•ืžื”

,

ืื

ืขืงืจืงื” ืšืชื—ื‘ืŸืจืชื ืœืฉืชื•ืจื‘ื˜ืฆื” ืชื™ืืจื ืืœื™ื›

0 โ€“ 120

ืก

"

ืž

,

ื‘ื™ืฆื™ ื‘ืฆืžืจืฆื•ื ื•

,

ืฉ

ืจืฉืคืื•ืชื•ื

ืื™ืžืฉื’ืœื•ื”ืœืงื”ืขืงืจืงืœืกื—ื™ืœ

.

(12)

102

0%-15% ืชื™ืกืจื—ืชืœื•ื›ืช

0 2 4 6 8 10 12 14

19

98 ื•ืชืก1999 ื‘ื™ื‘

ื

19

99 ื•ืชืก2000 ื‘ื™ื‘

ื

20

00 ื•ืชืก2001 ื‘ื™ื‘

ื

20

01 ื•ืชืก2002 ื‘ื™ื‘

ื

20

02 ื•ืชืก2003 ื‘ื™ื‘

ื

20

03 ื•ืชืก2004 ื‘ื™ื‘

ื

20

04 ื•ืชืก2005 ื‘ื™ื‘

ื

ื”ื ื•ืข

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ืจื˜

ื™ืœ

ืœ

ืื™ื—ืœื•ืง ืื™ืจื™ืคืฉ

ืจื•ื™ื 6.7 : ืขืงืจืงื” ืœืฉื”ื™ื•ื•ืจื” ื”ืกื™ืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื•ื ืชืฉื”

) % 15 <

ืชื™ืกืจื—

(

ืจืงืกื”ืชื•ื ืฉืšืœื”ืžื‘ ื•ื™ืชืกื‘

ื‘ื™ื‘ืื‘ื•

ืจื•ื™ืื‘

6.8

ืชื ื”ื–ื•ื›ื™ืจื’ืฆื•ืž

ืชื•ื™ื ื•ื ื™ื‘ื”ืชื•ืขืงืจืงื‘ืŸืจ

.

ื”ื“ื‘ื•ืขื”ืชืจื›ื™ื 

,

ืจืชื•ื™ืชื•ื™ืชื™ืกืจื—ื”ืชื•ืขืงืจืงื”ื™ื›

ืŸืจืชื  ืจืชื•ื™ ืชื•ื—ืคื•ืก

,

ื”ืกื™ืขื” ื™ื•ืฆื™ืžื‘ ืกื™ืกืžื” ืŸืจืชื ื” ื™ื–ื•ื›ื™ืจื‘ ืื’ ื™ื•ื˜ื™ื‘ ื™ื“ื™ืœ ื”ืื‘ ืชืื–ื” ื”ื—ื™ืคืกื”ื•

ื”ื™ื•ื•ืจื”

,

ืจืชื•ื™ ืชื•ืœืงื” ืชื•ืขืงืจืงื” ืœืฉ ื•ืœืืž ืจืชื•ื™ ืื™ื”ื•ื‘ื’ ืื”ืฉ

.

ืชื•ืงืœื— ืŸื™ื‘ ืื™ืœื“ื‘ื” ืฉื™ ืŸืื› ืื’

ืฉื‘ืชื•ืงืฉื•ืžื”ืชื•ืงืœื—ืœืื™ื—ืœื•ืงื‘ืชื•ืงืฉื•ืžื”

ืื™ืจื™ืค

.

ืŸืื›ืื’ืชืจื›ื™ื ืชื™ืคืจื•ื—ื”ื”ืคื™ื˜ืฉื”

, ืชื™ืืจื ื™ื›ืื

ืื™ื—ืœื•ืงื”ืชื•ืงืœื—ื‘ืื™ื ืฉื”ืืขืŸืจืชื ื”ื™ื–ื•ื›ื™ืจื‘ืชืžื™ื™ื•ืกืžื”ื™ื™ืœืข

.

15%-40% ืชื™ืกืจื—ื”ืชืœื•ื›ืช

0 2 4 6 8 10 12 14

19

98 ื•ืชืก1999 ื‘ื™ื‘

ื

19

99 ื•ืชืก2000 ื‘ื™ื‘

ื

20

00 ื•ืชืก2001 ื‘ื™ื‘

ื

20

01 ื•ืชืก2002 ื‘ื™ื‘

ื

20

02 ื•ืชืก2003 ื‘ื™ื‘

ื

20

03 ื•ืชืก2004 ื‘ื™ื‘

ื

20

04 ื•ืชืก2005 ื‘ื™ื‘

ื

ื”ื ื•ืข

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ืื™ื—ืœื•ืง ืื™ืจื™ืคืฉ

ืจื•ื™ื 6.8 : ืขืงืจืงื”ืœืฉื”ื™ื•ื•ืจื”ื”ืกื™ืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื•ื ืชืฉื”

) % 15 -% 40

ืชื™ืกืจื—

(

ื‘ื™ื‘ืื‘ื• ื•ื™ืชืกื‘ืื™ื ืฉื”ืŸื™ื‘

ื‘ ืจื•ื™ื

6.9

ื’ืฆื•ืž

ื•ืžืžื” ืŸืจืชื ื” ื–ื•ื›ื™ืจ

ื”ื™ื•ื•ืจื” ืขืงืจืงื” ืชืกื™ืขื‘ ืขืฆ

ื‘ ืชื•ืขืงืจืง ืŸื”ื‘ืฉ

ืชืœื•ื›ืช ื” ืชื™ืกืจื—

ืž ื”ื”ื•ื‘ื’

โ€“ 40% .

ื”ืืจื 

,

ื™ืœืข ืŸื™ื ื™ื›

ื™

ืื™ื—ืœื•ืงื” ืชื•ืงืœื—ื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจื‘ ื”

,

ืชื™ืคืจื•ื—ื” ื”ืคื™ื˜ืฉื”ื•

ืจืชื•ื™ ื•ื ืชื•ื—ืค ืขื•ื‘ืง ืšืจืขืœ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืชื ื‘ื™ื‘ืื‘ ื”ืจื™ื–ื—ืž

.

ืŸืจืชื ื” ื–ื•ื›ื™ืจืœ ื”ื‘ื™ืกื” ื”ืจื•ืจื‘ ืืœ

ืื™ืจื™ืคืฉื” ืชื•ืงืœื—ื‘ื”ื•ื‘ื’ื”

.

ื•ื™ืชืกื‘

1999

ื‘ื™ื‘ืื‘ื•

2000

ื™ืงืžื•ืขื‘ ื

90

ื•

-120

ืก

"

ืž

)

ืจื•ื™ื ืื™

6.10

ื•

โ€“

6.11 (

ืฉื”ื–ืžื”ื•ื‘ื’ืื™ืจื™ืคืฉื”ืชื•ืงืœื—ื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

ื‘

ืื™ื—ืœื•ืงื”ืชื•ืงืœื—

,

ื•

ื“ืขืชื•ื‘ื›ืฉื‘ืชืื–ืชืžื•ืขืœ

(13)

103

ืก

"

ื”ืžื•ื“ ืชื•ืขืงืจืงื” ื™ื’ื•ืก ื™ื ืฉื‘ ื–ื•ื›ื™ืจื” ืž

.

ื™ ืŸื›ืชื™ ืฉ

ืจื‘ืขืœ ื™ื•ื˜ื™ื‘ ืŸืื› ืฉื™

ืŸ

ืืœ ืื™ื ืฉืœื• ืชื•ืงืœื—ื” ืœืฉ

ืชื•ืžื•ืฉื’

,

ืฉ

ื”ื‘ื›ืฉืœื“ืขืงืจืŸืจืชื ื”ืงื—ื“ื ืŸื”ื‘

60 โ€“ 120

ืก

"

ืจืชื•ื™ืงื•ืžืขืืœื•ืž

. ืŸืจืชื ื”ื–ื•ื›ื™ืจืชื“ื™ืจื™ืชื

ืื™ืคืจื•ื—ื‘ ืื™ื‘ื•ืจืžืื™ืžืฉื’ืœ ืกื—ื™ื™ืœ ืจืฉืคืืชื•ืื‘ื”ืื™ื ืฉื‘

2001

ื•

-2002 .

ืŸื‘ื•ืž

,

ืื’ืŸืื› ืชืื˜ื‘ืชืžืฉ

ืชื™ืกืจื—ื”ืชืœื•ื›ืช

ืขืงืจืงื‘ื”ื”ื•ื‘ื’ื”

,

ืžืจืชื•ื™ืขืงืจืงืœืŸืจืชื ืชื—ื™ืคืกืœืชืžืจื•ื’ื”

ื‘

ืชื•ืœืงืชื•ืขืงืจืง

.

> 40% ืชื™ืกืจื—ืชืœื•ื›ืช 0 2 4 6 8 10 12 14

19

98 ื•ืชืก1999 ื‘ื™ื‘

ื

19

99 ื•ืชืก2000 ื‘ื™ื‘

ื

20

00 ื•ืชืก2001 ื‘ื™ื‘

ื

20

01 ื•ืชืก2002 ื‘ื™ื‘

ื

20

02 ื•ืชืก2003 ื‘ื™ื‘

ื

20

03 ื•ืชืก2004 ื‘ื™ื‘

ื

20

04 ื•ืชืก2005 ื‘ื™ื‘

ื

ื”ื ื•ืข

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื  ืื™ื—ืœื•ืง

ืื™ืจื™ืคืฉ

ืจื•ื™ื 6.9 :

ืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™ืขื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืชื•ื ืชืฉื”

ืข

) % 40 >

ืชื™ืกืจื—

( ื•ื™ืชืกื‘ ืื™ื ืฉื”ืŸื™ื‘

ื‘ื™ื‘ืื‘ื•

ืž"ืก 90-60 ืงืžื•ืข -40%< ืชื™ืกืจื—ืชืœื•ื›ืช 0

2 4 6 8 10 12 14 16 18 20 22

1999 20

00 2001

20

02 2003

20

04 2005

ื”ื ืฉ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.10 :

ืงืžื•ืขื‘ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ื‘ื™ื‘ืื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

60 โ€“ 90

ืก

"

ืž

(14)

104

ื‘ื™ื‘ื - ืž"ืก 120-90 ืงืžื•ืข- > 40% ืชื™ืกืจื—ืชืœื•ื›ืช 0

4 8 12 16 20

1999 20

00 2001

20

02 2003

20

04 2005

ื”ื ื•ืข

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘ ืื™ืจื™ืคืฉ

ืื™ื—ืœื•ืง

ืจื•ื™ื 6.11

:

ื›ื™ืจ ื• ืงืžื•ืขื‘ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ื‘ื™ื‘ืื‘ืŸืจืชื ื”ื–

90 โ€“ 120

ืก

"

ืž

ืื™ืื‘ื” ืื™ืจื•ื™ืื‘

) 6.14-6.12 (

ืคื•ืž ื•ืชื™ื  ืขื™

ื” ื™ื›ืจืข ื—

โ€“ SAR

ืŸืจืชื ื” ื™ื–ื•ื›ื™ืจ ื—ื•ืชื™ื ืœ ืœื™ื‘ืงืžื‘

.

ืŸื™ื‘

ืชื•ืœืงื” ืชื•ืขืงืจืงื”

,

ืื™ื—ืœื•ืงื‘ ืชื•ืงืฉื•ืžื”

,

ืื™ืœื“ื‘ื” ืื ืฉื™ ืื™ืจื™ืคืฉื‘ ืชื•ืงืฉื•ืžื” ืชื•ืขืงืจืงื” ืŸื™ื‘ืœ

ื” ื™ื›ืจืขื‘ ืื™ืจื•ืจื‘

โ€“ SAR ,

ืื’ ืจืชื•ื™ ืื™ื”ื•ื‘ื’ ืŸืจืชื  ืชื—ื™ืคืก ืกื—ื™ ื™ื›ืจืข ืื™ื ืงืž ืื™ื—ืœื•ืงื” ืจืฉืื›

ืชื•ื“ื‘ื›ื” ืชื•ืขืงืจืงื‘ื• ืชื•ื™ื ื•ื ื™ื‘ื” ืชื•ืขืงืจืงื‘

.

ื‘ ืจื•ื™ื

6.14

ื‘ื™ื‘ืื‘

2000 ,

ืชืžืจ ื”

โ€“ SAR

ืขืงืจืง ืœืฉ

ื”

ืื™ืจื™ืคืฉื‘ ืชื™ืงืฉื•ืž

,

ืขืงืจืง ืœืฉ ื•ื–ืž ืจืชื•ื™ ื”ื”ื•ื‘ื’

ื”

ืื™ื—ืœื•ืงื‘ ืชื™ืงืฉื•ืž

,

ืŸืจืชื ื” ื™ื–ื•ื›ื™ืจืœ ื”ืžื•ื“ื‘

ื”ื ื•ืขื”ืชื•ืื‘

,

ื”ืจืงืžืœื›ื‘ื•

ืชื ืฉื‘

2004

ืจืฆื•ื  ืŸื™ื‘ืจืขืค ื”

ืขืงืจืง ืชื™ืงืฉื•ืžื” ื‘

ืขืงืจืงืœืื™ื—ืœื•ืง

ืชื™ืงืฉื•ืžื”

ืื™ืžื‘ ืื™ืจื™ืคืฉ

,

ืชื™ื ื•ื ื™ื‘ื”ืขืงืจืงืœื”ืžื•ื“ื‘

.

15%-0% ืชื™ืกืจื—ืชืœื•ื›ืช

0 2 4 6 8 10

19

98 ื•ืชืก1999 ื‘ื™ื‘

ื

19

99 ื•ืชืก2000 ื‘ื™ื‘

ื

20

00 ื•ืชืก2001 ื‘ื™ื‘

ื

20

01 ื•ืชืก2002 ื‘ื™ื‘

ื

20

02 ื•ืชืก2003 ื‘ื™ื‘

ื

20

03 ื•ืชืก2004 ื‘ื™ื‘

ื

20

04 ื•ืชืก2005 ื‘ื™ื‘

ื

ื”ื ื•ืข

SA

R

ืื™ื—ืœื•ืง ืื™ืจื™ืคืฉ

ืจื•ื™ื 6.12 :

ืชื•ื ืชืฉื”

SAR

ืขืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™ืขื‘

) % 0 -% 15

ืชื™ืกืจื—

(

ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘

ื‘ื™ื‘ืื‘ื• ื•ื™ืชืกื‘

(15)

105

15%-40% ืชื™ืกืจื—ืชืœื•ื›ืช

0 2 4 6 8 10

19

98 ื•ืชืก1999 ื‘ื™ื‘

ื

19

99 ื•ืชืก2000 ื‘ื™ื‘

ื

20

00 ื•ืชืก2001 ื‘ื™ื‘

ื

20

01 ื•ืชืก2002 ื‘ื™ื‘

ื

20

02 ื•ืชืก2003 ื‘ื™ื‘

ื

20

03 ื•ืชืก2004 ื‘ื™ื‘

ื

20

04 ื•ืชืก2005 ื‘ื™ื‘

ื

ื”ื ื•ืข

SA

R

ืื™ื—ืœื•ืง ืื™ืจื™ืคืฉ

ืจื•ื™ื 6.13 : ืชื•ื ืชืฉื” SAR

ืขืงืจืงื” ืœืฉ ื”ื™ื•ื•ืจื” ื”ืกื™ืขื‘

) % 15 -% 40

ืชื™ืกืจื—

(

ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘

ื•ื™ืชืกื‘

ื‘ื™ื‘ืื‘ื• > 40% ืชื™ืกืจื—ืชืœื•ื›ืช

0 2 4 6 8 10

19

98 ื•ืชืก1999 ื‘ื™ื‘

ื

19

99 ื•ืชืก2000 ื‘ื™ื‘

ื

20

00 ื•ืชืก2001 ื‘ื™ื‘

ื

20

01 ื•ืชืก2002 ื‘ื™ื‘

ื

20

02 ื•ืชืก2003 ื‘ื™ื‘

ื

20

03 ื•ืชืก2004 ื‘ื™ื‘

ื

20

04 ื•ืชืก2005 ื‘ื™ื‘

ื

ื”ื ื•ืข

SA

R

ืื™ื—ืœื•ืง ืื™ืจื™ืคืฉ

ืจื•ื™ื 6.14 :

ื”ืชื•ื ืชืฉื”

-SAR

ื•ืจื” ื”ืกื™ืขื‘

ืขืงืจืงื”ืœืฉ ื”ื™ื•

) % 40 >

ืชื™ืกืจื—

(

ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘

ื‘ื™ื‘ืื‘ื• ื•ื™ืชืกื‘

ืžื’ื•ื“ื› ื” ืื™ื™ื•ื ื™ืฉืœ ืฉ

ืž ืขืงืจืงื‘ ืŸืจืชื ื” ื™ื–ื•ื›ื™ืจ ืื™ืจื‘ื•ืข

ื”

ื‘ื™ื‘ืืœ ื•ื™ืชืก

,

ืืงืจืžื‘ื• ืงืžื•ืขื‘ ืชื•ืœืชื›

ืœืฉ

ืขืงืจืงื”

,

ืŸืœื”ืœืฉืื™ืจื•ื™ืื”ืื™ื’ืฆื•ืž

:

ืŸื™ื‘ ื”

ื‘ื™ื‘ืืœ ื•ื™ืชืก

ืชื—ื•ืค

ื”ื ื•ื™ืœืขื” ื”ื‘ื›ืฉื‘ ื˜ืœื•ื‘ ืŸืคื•ืื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืขืฆื•ืžืžื‘

-0 โ€“ 30

ืก

"

ืž

,

ืœืฉื‘

ืจื•ื—ื”ื™ืžืฉื’

ืฃ

,

ืชื•ืขืงืจืงื‘ืจืฉืืžืชื•ืœืงื”ืชื•ืขืงืจืงื‘ืจืชื•ื™

ื” ืชื•ื“ื‘ื›

.

ืจื•ื™ืื‘

6.15

ื•ื™ืชืกื‘ ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจื™ื•ื ื™ืฉื’ืฆื•ืž

)

ืื™ื—ืœื•ืง ืชืžื•ืขืœ ืื™ืจื™ืคืฉ

( , ื“ื•ืขื‘

ืจื•ื™ืื‘ืฉ

6.16

ืชื•ืœืงื”ืชื•ืขืงืจืงื‘ื‘ื™ื‘ืื‘ืงืžื•ืขื•ืชื•ืื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื’ืฆื•ืž

(16)

106

ื•ื™ืชืก - ืž"ืก 30-0 ืงืžื•ืข - 0%-15% ืชื™ืกืจื—ืชืœื•ื›ืช

0 4 8 12 16 20

1998 19

99 2000 2001 2002 2003 2004

ื”ื ืฉ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.15

:

ืชื•ืœืงืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ื‘

ืงืžื•ืข

0 โ€“ 30

ืก

"

ื•ื™ืชืกื‘ืž

ื‘ื™ื‘ื - ืž"ืก 30-0 ืงืžื•ืข -15%-0% ืชื™ืกืจื—ืชืœื•ื›ืช

0 4 8 12 16 20

1999 20

00 2001

20

02 2003

20

04 2005

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘ ืื™ืจื™ืคืฉ

ืื™ื—ืœื•ืง

ืจื•ื™ื 6.16 : ืชื•ืœืงืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

0 โ€“ 30

ืก

"

ื‘ื™ื‘ืื‘ืž

ื”ืžื•ื“ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ื”ื ื•ืžืชื”

,

ืŸื™ื‘ืื™ื™ื•ื ื™ืฉื”ืšื ื”

ืžื‘ื™ื‘ืืœื•ื™ืชืก

ืื™ื™ืจืขื– ืจืชื•ื™

.

ื‘ ืจื•ื™ื ืื™

6.17 โ€“

6.18

ื‘ื™ื‘ืื‘ืชื•ื“ื‘ื›ื” ืชื•ืขืงืจืงื”ื™ื ื•ืชื  ืื™ืขื™ืคื•ืž

,

ืคื”ื”ื™ื›ืชื•ืืจืœืŸืชื™ื ื•

ืŸื›ื ื‘ื™ื‘ืืœื•ื™ืชืกื”ืŸื™ื‘ ืื™ืฉืจ

ืจืชื•ื™ืื™ื ื˜ืง

(17)

107

ื•ื™ืชืก - ืž"ืก 30-0 ืงืžื•ืข - > 40% ืชื™ืกืจื—ืชืœื•ื›ืช

0 4 8 12 16 20

19

98 1999 2000 2001 2002 2003 2004

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.17 : ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

0 โ€“ 30

ืก

"

ื•ื™ืชืกื‘ืž

ื‘ื™ื‘ื -ืž"ืก 30-0 ืงืžื•ืข - > 40% ืชื™ืกืจื—ืชืœื•ื›ืช

0 4 8 12 16 20

19

99 2000 2001 2002 2003 2004 2005

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘ ืื™ืจื™ืคืฉ

ืื™ื—ืœื•ืง

ืจื•ื™ื 6.18 : ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

0 โ€“ 30

ืก

"

ื‘ื™ื‘ืื‘ืž

ื”ืงื•ืžืขื” ื”ื‘ื›ืฉื” ืœืฉ ื”ืžื•ื“ ืŸืคื•ืื‘ ื”ืงื™ื“ื‘

120-90

ืก

"

ืž

-ืื™ืจื•ื™ืื” ืชืจื“ืกื‘ ื’ืฆื•ืžื” ืชื ื”ืœืขืช

ืŸืœื”ืœืฉ

:

ื‘ื™ื‘ืืœ ื•ื™ืชืก ืŸื™ื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืชื•ื ืชืฉื” ืชืื•ื•ืฉื”

ืื™ืžื‘ ืจืงืกื” ืชื•ื ืฉ ืšืœื”ืžื‘

ืื™ืจื™ืคืฉ

ื‘ื• ืื™ื—ืœื•ืง

(18)

108

ื•ื™ืชืก - ืž"ืก 120-90 ืงืžื•ืข - 15%-0% ืชื™ืกืจื—ืชืœื•ื›ืช

0 4 8 12 16 20

1998 19

99 2000 2001 2002 2003 2004

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.19 : ืชื•ืœืงืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

90 -120

ืก

"

ื•ื™ืชืกื‘ืž

ืงืžื•ืขื‘ืชื•ืœืงืชื•ืขืงืจืงื‘ื•ื™ืชืกื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

120

ืก

"

ื•ืžืž ื’ืฆ ื‘ ืจื•ื™ื

6.19 .

ืœื™ื‘ืงืžื”ืจื•ื™ืื”

,

ืชืื’ื™ืฆืž

ืชื ื•ืข ื‘ื™ื‘ืื”

,

ื”ืืจื ืฉื™ืคื›

ื‘ ืจื•ื™ื

6.20 ,

ื• ื”ืœื•ืข ื‘ื‘ ื™

ื”ืคื™ื˜ืฉืšื™ืœื”ืชืื™ื™ืงืชืžื”ื–ืงืžื•ืขื‘ืื’ื™ื›ืจื•ืจ

.

ื‘ื™ื‘ื -ืž"ืก 120-90 ืงืžื•ืข -15%-0% ืชื™ืกืจื—ืชืœื•ื›ืช

0 4 8 12 16 20

199 9

20

00 2001

20

02 2003

20

04 2005

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.20 : ืชื•ืœืงืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

90 -120

ืก

"

ื‘ื™ื‘ืื‘ืž

ืจืชื•ื™ ืืฆืžื•ืฆืž ื”ืคื™ื˜ืฉื” ืจื•ืขื™ืฉ ืชื•ื“ื‘ื›ื” ืชื•ืขืงืจืงื‘

,

ื•

ื–ื•ื›ื™ืจ ืœืข ืขื™ืคืฉืž ืขืงืจืงื” ืืงืจืž ื™ื› ื”ืืจื 

ื”ืœืืชื•ืขืงืจืงืœืฉื”ื™ื•ื•ืจื”ื”ืกื™ืขื”ื™ื•ืฆื™ืžื‘ืŸืจืชื ื”

,

ื”ืืฆื•ืชื›ื• ืšื›ืž

ืขืงืจืงื”ืŸื•ืจืชื ืœืขืื’

)

ืจื•ื™ื ืื™

6.21

ื‘ ื•ื™ืชืก

,

ื• โ€“ 6.22

ื‘ื™ื‘ืื‘

(19)

109

ื•ื™ืชืก - ืž"ืก 120-90 ืงืžื•ืข - > 40% ืชื™ืกืจื—ืชืœื•ื›ืช 0

4 8 12 16 20

1998 19

99 2000 2001 2002 2003 2004

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.21 : ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

90 -120

ืก

"

ื•ื™ืชืกื‘ืž

ื‘ื™ื‘ื - ืž"ืก 120-90 ืงืžื•ืข - > 40%< ืชื™ืกืจื—ืชืœื•ื›ืช 0

4 8 12 16 20

1999 20

00 2001 2002 2003 2004 2005

ื”ื ืฉ

ื”

ื™ื•ื•ืจ

ื”ืกื™

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื›ื™

ืจ

ืจื˜

ื™ืœ

ืœ

ื˜

ื ืœ

ื•ื™ื•ืงื

ื™ืœ

ื™ืž

ื‘

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.22 : ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ,

ืงืžื•ืข

90 -120

ืก

"

ื‘ื™ื‘ืื‘ืž

ืŸืจืชื ื” ืŸืž ืชื•ื—ืค ื”ื ืชืฉืž ืขืงืจืงื‘ ืื•ื™ื–ื ื’ืžื”ื• ืŸื“ื™ืกื” ืชืžืจืฉ ื”ื—ื ื”ื‘

,

ืื•ืฉืž ืืชื•ื™ื”

ืื™ื ื•ืฉืืจื” ืœืฉ

ืชื•ื—ืค ืื™ืกื™ืกืž

,

ืชื•ื ื•ืข ืืข ืื™ื ืชืฉืžื” ืŸืจืชื ื” ื™ื–ื•ื›ื™ืจืœ ื™ื•ื˜ื™ื‘ ืจืงื™ืขื‘ ืื” ืŸืจืชื ื” ืชื—ื™ืคืก ืกื—ื™ ื™ื›ืจืข

ื‘ืขืงืจืงืœืŸืจืชื ืชืคืกื•ืชืชื•ื‘ืงืขื‘ื•ื”ื ืฉื”

ื”ื™ืงืฉื”ื”ื™ืžืชื•ืขืฆืžื

.

ื”ื™ื›ืจืขื‘ืื™ื™ื•ื ื™ืฉื”ืื™ืœื‘ืงืชืžืŸืจืชื ื”ื™ื•ื ื™ืฉืœืืืชื”ื‘

โ€“ SAR ,

ืŸืจืชื ื‘ืื™ื™ื•ื ื™ืฉืœื”ืžื•ื“ื‘

ื™ืคืœืข ืชื•ื ื•ืขื”

,

ืœ ืจืฉืคืื•

ืืชื•ืืจ ื‘

ืจื•ื™ื ืื™

6.23 โ€“ 6.26 .

ื”ืืจื 

,

ื” ื™ื™ื•ื ื™ืฉ ื™ื›

โ€“ SAR

ื•ืœื—ืฉ ืื™ื™ื•ื ื™ืฉืœ ืื™ืคืคื•ื— ืŸื›ื

ืŸืจืชื ื”ื™ื–ื•ื›ื™ืจื‘

,

ืจืชื•ื™ืื™ื ื˜ืงืื™ื™ื•ื ื™ืฉื”ืจืชื•ื™ืœื•ื“ื’ื”ืงืžื•ืขื‘ื•

(20)

110

ื•ื™ืชืก - ืž"ืก 30-0 ืงืžื•ืข - 15%-0% ืชื™ืกืจื—ืชืœื•ื›ืช

0 2 4 6 8 10

19

98 1999 2000 2001 2002 2003 2004

ื”ื ืฉ

SA

R

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.23 :

SAR ืชื•ืœืงืชื•ืขืงืจืงื‘

,

ืงืžื•ืข

30 -0

ืก

"

ื•ื™ืชืกื‘ืž

ื‘ื™ื‘ื - ืž"ืก 30-0 ืงืžื•ืข -15%-0% - ืชื™ืกืจื—ืชืœื•ื›ืช

0 2 4 6 8 10

19

99 2000 2001 2002 2003 2004 2005

ื”ื ืฉ

SA

R

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.24 :

SAR ืชื•ืœืงืชื•ืขืงืจืงื‘

,

ืงืžื•ืข

30 -0

ืก

"

ื‘ื™ื‘ืื‘ืž

ื•ื™ืชืก - ืž"ืก 120-90 ืงืžื•ืข -> 40% ืชื™ืกืจื—ืชืœื•ื›ืช 0

2 4 6 8 10

19

98 1999 2000 2001 2002 2003 2004

ื”ื ืฉ

SA

R

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.25 :

SAR ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘

,

ืงืžื•ืข

90 โ€“ 120

ืก

"

ื•ื™ืชืกื‘ืž

(21)

111

ื‘ื™ื‘ื -ืž"ืก 120-90 ืงืžื•ืข -> 40% ืชื™ืกืจื—ืชืœื•ื›ืช 0

2 4 6 8 10

19

99 2000 2001 2002 2003 2004 2005

ื”ื ืฉ

SA

R

ืื™ืจื™ืคืฉ ืื™ื—ืœื•ืง

ืจื•ื™ื 6.26 :

SAR ืชื•ื“ื‘ื›ืชื•ืขืงืจืงื‘

,

ืงืžื•ืข

90 โ€“ 120

ืก

"

ื‘ื™ื‘ืื‘ืž

5 . ืื™ืจื“ื”ื” ื™ืœืขื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ

ื . ืื™ืœืขื‘ ืŸืจืชื ื” ื–ื•ื›ื™ืจ โ€“

ื™ืžื™ืž ื™ื•ืฆื™ืžื‘

ืจืงืกื”ืชื•ื ืฉืšืœื”ืžื‘ ื™ืžื™ืžื™ื•ืฆื™ืžื‘ืื™ืจื“ื”ื” ื™ืœืขื‘ืŸืจืชื ื”ื™ื›ืจืขืชื•ื ืชืฉื”ืชืจืื•ืชืžืื™ืื‘ื”ืื™ืจื•ื™ืื‘

.

ืŸืจืชื ื” ื–ื•ื—ื

ืฉื‘ื™ ืœืงืฉืžืœ

ืื™ืžื” ื’ื•ืกืœืฉ ืื™ื›ืชื—ื‘ืื‘ื•ืž ืื™ืœืขื‘

,

ืฉื” ืชื˜ื™ืฉ

ื”ื™ืง

,

ื”ื ื›ื• ืŸื–

.

ืื™ื›ืจืขื”

ื”ื™ืคืœื”ื ืฉืœืื™ืขืฆื•ืžืžืื”ืื™ืจื•ื™ืื‘ืื™ืขื™ืคื•ืžื”

ืงื“ื‘ื ื”ืืฉื•ื 

.

ืชื’ืฆื•ืž ื˜ืก ื™

ืขืฆื•ืžืžื”ืœืฉืŸืงืชื”ืชื™

.

ืจื•ื™ืื‘

6.27

ืื™ืžื”ื’ื•ืกืชืขืคืฉื”ื‘ืื™ืœืขื‘ืŸืจืชื ื”ืชืœื•ื›ืชืชื•ื ืชืฉื”ืชืจืื•ืชืž

-ืื™ืจื™ืคืฉื•ืืื™ื—ืœื•ืง

.

0 0.05 0.1 0.15 0.2 0.25 0.3

1999 2000 2001 2002 2003 2004

ื”ื ืฉ

ืื™ืœ

ืขื‘

ืŸืจ

ืช

ื 

ื–ื•

ื—

ื

ืื™ืจื™ืคืฉื™ืžื™ืžื™ื•ืฆื™ืž ืื™ื—ืœื•ืงื™ืžื™ืžื™ื•ืฆื™ืž

ืจื•ื™ื 6.27 :

ืื™ืžื”ื’ื•ืกื™ืคืœืื™ืจื“ื”ื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

ืจื•ื™ืืž

6.27

ื”ืœื•ืข

,

ืื™ืจื“ื” ื™ืœืขื‘ ืŸืจืชื ื” ื–ื•ื—ื ื™ื›

,

ืื™ื—ืœื•ืงื‘ ื•ืงืฉื•ื”ืฉ

,

ื™ืœืข ืœืฉ ื”ื–ืž ื˜ืขืžื‘ ื”ื•ื‘ื’

ืื™ืจื™ืคืฉ ืื™ืžื‘ื•ืงืฉื•ื”ืฉ ืื™ืจื“ื”

.

ืœืขื”ื ืฉื™ืื™ืžื”ื™ื’ื•ืก ื™ื ืฉื‘

ื™

ืŸืžื–ื”ืืข ืื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจื‘ื”ื™

,

ืšื

ืž ื”ื›ื•ืžื  ื”ืžืจื” ื“ื•ืข ืœื›

โ€“ 0.25% ,

ืื™ืจื“ื”ื” ืœื•ื‘ื™ืœ ืงื–ื  ืชื ื›ืก ืชืคืงืฉื  ืืœ

.

ืื™ืœื“ื‘ื” ืื™ืืจื  ืืœ

ืื™ืงื”ื‘ื•ืž

.

ื‘ ืจื•ื™ื

6.28

ื•ืž ื’ืฆ

ืื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ

,

ืจืงืกื‘ืื™ื ื—ื‘ื ื”ืื™ื ื–ื”ื™ืคืœ

(22)

112

0

0.05 0.1 0.15 0.2 0.25

1999 2000 2001 2002 2003 2004

ื”ื ืฉ

ืื™ืœ

ืขื‘

ืŸืจ

ืช

ื ื”

ื–ื•

ื—

ื

ืœื›ื™ืž

ื™ื‘ื•ืจืจืื˜ืก

ืชื™ืœืžื•ืค ื™ื˜ื•ืžืฉ

ืจื•ื™ื 6.28 : ืŸื–ื”ื™ืคืœืื™ืจื“ื”ื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื—ื

ื”ืืจื 

,

ื™ื› ื‘ื•ืจืœ

ืื™ื ื–ื” ืจืืฉื‘ ืจืฉืืž ื˜ืขืžื‘ ืื™ื”ื•ื‘ื’ ื™ื˜ื•ืžืฉ ืŸื–ื” ื™ืœืขื‘ ืŸืจืชื ื” ื–ื•ื—ื

.

ืฉื™ ืชื™ืœืžื•ืคื‘

ืŸืžื–ื”ืšืจื•ืืœืขื•ื‘ืงืŸืคื•ืื‘ืŸืจืชื ืชื•ื—ืค

,

ืšื

ื•ืื™ื ื˜ืงืื™ืœื“ื‘ื”ื”

ื™ื ืื  ืื™ืงื”ื‘ื•ืž

.

ืจื•ื™ืื‘

6.29

ื”ื ื›ื”ืชืขืคืฉื”ื‘ืื™ืœืขื‘ืŸืจืชื ื”ืชืœื•ื›ืชืชื•ื ืชืฉื”ืชืจืื•ืชืž

.

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4

1999 2000 2001 2002 2003 2004

ื”ื ืฉ

ืื™ืœ

ืขื‘

ืŸืจ

ืช

ื ื”

ื–ื•

ื—

ื

ื”ืงืœื•ื• ืฉื—ืฉื•ื— ืจื™ื•ืจื˜

ืจื•ื™ื 6.29 : ื”ื ื›ื”ื™ืคืœืื™ืจื“ื”ื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื—ื

ื”ืœื•ื“ื’ ื”ืขืคืฉื”ื”ืงืœื•ื•ื” ืชื ื›ืœ

ืชื•ืจื—ืื”ืชื•ื ื›ื” ื™ืชืฉืžืจืชื•ื™

ืื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจ ืœืข

,

ืŸืื› ืื’ื™ื›ืื

ืื™ื ื˜ืงืื™ืœื“ื‘ื”ื”

.

ืชื ืฉื‘ ืขืฆื•ืžืžื‘

2004

ื‘ืข

ืื™ื ื–ื‘ืŸืจืชื ื” ื–ื•ื›ื™ืจ ืจ

,

ื”ืงืœื•ื•ื” ืชื ื›ืœืข ืื™ื‘ื›ืจื•ืžื”

,

ืชื

ื”ืื•ื—ืช

โ€“ 0.25% ,

ืื™ืจื“ื”ื‘ื”ื•ื‘ื’ืœื‘ืฉื—ื ื”

.

ื‘ ืจื•ื™ื

6.30

ืชื’ืฆื•ืž

ืื™ืจื“ื”ื”ื™ืœืขื‘ืŸืจืชื ื”ื–ื•ื›ื™ืจืœืขื”ื™ืงืฉื”ื”ืชื•ื˜ื™ืฉืชืขืคืฉื”

References

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