Upload
musdaque-chowdhury
View
217
Download
0
Embed Size (px)
Citation preview
8/13/2019 CarbonCycleBackground.pdf
1/12
AN INDCIN HE
GLBAL CABN CCLEC: . , ? A ,
, , , , , , . ,
, ,
, , . ,
.
C E' , , , . E , (
) . A
. I ,
. A
F 1 ,
. , (
) (). , ,
, . A
. E
, ,
, .
(F 2).
,
,
. ,
,
,
.
Uptake by
photosynthesis
in the presence
of water and
sunlight
Atmospheric Carbon Dioxide
Transfer to
soils
Carbon stored in plants and soils
Return to
atmosphere by
respiration,
decay, fire and
harvesting
Uptake by
photosynthesis
in the presence
of water and
sunlight
Atmospheric Carbon Dioxide
Transfer to
soils
Carbon stored in plants and soils
Return to
atmosphere by
respiration,
decay, fire and
harvesting
. , , , , .
8/13/2019 CarbonCycleBackground.pdf
2/12
, 1 ( )
, , .
,
(C2).
. G,
E
. C (C2)
, E
.
, , E
. B , ,
.
I C2
30%
. 150 , .
B C2 ,
.
.
E , ,
, . I ,
( )
. M C2
. H,
C2
C2 (, , .),
.
C2
. H C2 ?
C2
E' . I , .
1. .
( )
( ,
). , ,
( ).
N , C 2.
M C 2.
8/13/2019 CarbonCycleBackground.pdf
3/12
,
I C2
, (),
, (). C,
E
.
A , . I
, , , , ,
, , , ,
, , . B ' ,
(, , , )
(F 2). A
, .
. , ,
() . , , . (..//)
8/13/2019 CarbonCycleBackground.pdf
4/12
( , , ,
). B ,
. B E
, . I,
, , . F
, (), G (G),
(1,000,000,000,000,000 1015
) ! B ,
( ),
(1,000,000,000,000) (1,000,000,000) . F
, 2.205
2.2 . I , 1
. N E
.
D , E
. H,
. K
, .
E
. (
) ,
, ,
. E 100,000,000 C( ). 1
, ! A 4,000 C E
. .
E 38,000 C,
. A
, 1,000 , .
, C2
, , ,
. A , .
750 C,
C2, (CH4) . A
,
8/13/2019 CarbonCycleBackground.pdf
5/12
. C
C E . I ,
750 C
. B ,
560 C
E . I ,
C
( )
(
).
, ,
( ). , ,
,
. E
,
. I ,
, , , ,
(
).
, C2
,
,
C2
.
,
,
. C, E
560 C,
.
1
F
:
.
'
, .
,
E ,
, ,
.
,
,
.
A
.
,
,
( , ,
). C
,
,
,
. G,
.
.
8/13/2019 CarbonCycleBackground.pdf
6/12
1500 C. M
, .
F,
. ,
. 1 . I
, ,
. M
.
C2.
. F
(..
2
1
2
1). F ,
,
.
A
. F , (C2
),
. . I
, C .
H, C .
D , C2
(
, , ). I , C2
. E
. B ,
( ),
, , . ,
. ,
, , ,
. C 120 C/
610 C .
C2
( ).
, , .
8/13/2019 CarbonCycleBackground.pdf
7/12
(60 C/) C2
.
I ,
, . B ,
( ) . D
( , , .)
, .
C2 ,
, .
( ), C2
60 C/ . B
( ),
.
I , . I
, ,
.
C2
. , C2
.
H2 C2 H2C3( ,
, C3).
C2 .
C
.
C ,
, . I
. B ,
,
. F ,
. (92 C) (90
C) .
C2
. H,
. :
, .
E'
( B 1: F F). H, ,
8/13/2019 CarbonCycleBackground.pdf
8/12
. B
C2,
. A ,
68 C/.
A
, .
, E'
. N
. B
( )
,
1.5 C/. I ,
(
N A),
.
: G E'
. A
,
,
.
, , ,
, .
. , , .
,
, . ,
(CC3)
. ,
. I ( 4)
.
C,
E' . , ,
.
, .
,
, C2
8/13/2019 CarbonCycleBackground.pdf
9/12
. '
( ) . ,
,
C2 . H, ,
.
&
E' .
, , ,
. B ?
E' , ',
, . I ,
, . I
,
; "" , ""
. .
,
. J ,
. , E'
.
,
'
, . A . A C2 ,
.
. B ,
' ?
GLBE C C
.
8/13/2019 CarbonCycleBackground.pdf
10/12
H (, , ,
, .) , , .
E. E'
79.1% ( ), 20.9% , 0.036%
. .
E , 8 ( 5 )
17 (11 .) . ,
50 (31 .), . ,
8090 (4854 .), , , ,
, .
.
,
, . E , , ,, .
N ,
, , .
,
, , . E
,
.
(2)A ,
. I (
), ,
, .
. , ,
, .
A ()
. C . F
.
A
. A .
, 30 ,
. C , ,
8/13/2019 CarbonCycleBackground.pdf
11/12
. . I
.
, , ,
E' . A ,
,
. .
. I
. I
.
.
. I
, .
A,
. D .
A , ,
.
.
A
. I .
A , ,
, ( GHG) E'
.
() , , ,
, , , E,
.
.
A
, , , . I .
A
. B ,
.
()I 1988, N E
8/13/2019 CarbonCycleBackground.pdf
12/12
M ICC .
ICC
. ICC
' . L
, , 60
ICC
.
, , ,
ICC '
. F , ICC
.
159
N F C C C ( D 1997 K J)
. I ,
. A
, .
4
, E . I
.
.
, , .
,
.