Agriculture Reference
In-Depth Information
of SOC sequestration with improved fertilizer management for UFO, CF, O, UF, and
CK in the HHH was 22.3, 87.4, 89, 116, and 136 Tg C during 23 years.
Thus, there is a strong correlation between the SOC concentration/pool in the root
zone and the application of fertilizers and of organic manures. The combined use of
inorganic fertilizers and organic manures is the best strategy to maintain/enhance
the SOC pool in the HHH.
1600
1600
O
CK
1400
1400
1200
1200
1000
1000
800
800
600
600
400
400
200
200
0
0
−200
−200
−400
−400
1600
1600
UF
CF
1400
1400
1200
1200
1000
1000
800
800
600
600
400
400
200
200
0
0
−200
−200
−400
−400
CFO
UFO
1600
1600
1400
1400
1200
1200
1000
1000
800
800
MR
TR
600
600
400
400
200
200
0
0
−200
−200
−400
−400
FIGURE 7.2
Mean rate (MR) and average rate (AR) of change of SOC pool at different sites
and different fertilizer managements.
