on GHG emissions can be concluded, it is important to continue the study on
AeroHydro Culture technology development.
11.7 Conclusion
AeroHydro Culture Technology is mainly applied in peatland restoration and rehabilitation, of which technology mainly consists of the application of materials from
land surface. Therefore, AeroHydro Culture Technology is available to suboptimal
land, not only peatland. Among the application materials of AeroHydro Culture
Technology, biochar is one of the key materials. As biochar is a porous material, it
has high-water holding capacity, which is a good property even in dry land or
dryness-peatland.
In Indonesia, suboptimal land including peatland is largely potential to be developed into productive agricultural areas. As suboptimal land, its potential productivity
is limited by poor land quality and water availability. However, the results of various
research efforts carried out have shown that by thorough implementation of appropriate management, suboptimal land productivity can be improved. One of those is
Table 11.8 The role of biochar in greenhouse gas emission mitigation
Types of biochar
Emission (kgha
À1
season
À1
)
Crop
Soil type
Reference
CH 4
N 2 O
CO 2
Control
16.700 0.050 1850.900 Rice
Oxisol,
China
Wang et al.
(2012)
Rice husk biochar
25 t ha
À1
21.700 0.010 1540.800
Rice husk biochar
50 t ha
À1
22.800 0.020 1548.800
Control
À0.160 0.090
436.800 Wheat Oxisol,
China
Risk husk biochar
25 t ha
À1
1.270
0.040
397.700
Risk husk biochar
50 t ha
À1
0.050
0.030
491.500
Control
28.300 4.500 1523.700 Rice
Entic
Hapludept
Zhang Bian
et al. (2012)
Wheat straw biochar
10 t ha
À1
24.500 3.100 1306.300
Wheat straw biochar
20 t ha
À1
43.800 2.500 1383.400
Wheat straw biochar
40 t ha
À1
39.100 2.000 1582.500
Control
–
1.400 4500.000 Corn
Peatland
Maftuah et al.
(2016)
Coconut shell biochar
7.5 t ha
À1
–
0.600 2500.000
Rice husk biochar
7.5 t ha
À1
–
0.800 2300.000
Note: – ¼ data are not available
11 Biochar for the Improvement of Peatland and Suboptimal Land
355