Page 171 - Agroforestry system - book inner (final corrected) - 9.-3-21_Neat

National level e-symposium on “Agroforestry system for augmenting livestock
productivity and empowering resource poor rural farmers”

Table 1. Initial Physiochemical Soil properties under silvipasture in degraded wasteland

EC Silt Clay
System Soil pH Sand (%) Texture
(dSm ) (%) (%)
-1
Silvipasture in 6.9 0.01 65.5 16.5 18.5 Sandy loam
degraded wasteland

The biomass and carbon allocation in different components of Gliricidia sepium in the existing twelve
year old silvipasture in degraded wastelands is presented in table 2.
Table 2. Biomass and carbon allocation in different components of Gliricidia sepium in the existing
twelve year old silvipasture in degraded wastelands
Components Biomass (t/ha) Carbon (t/ha) Percent contribution
Branch 25.22 11.98 25.72
Twig 5.67 2.69 5.78
Stem 56.75 26.96 57.88

Leaves 5.18 2.46 5.28
Roots 5.22 2.48 5.32
Total 98.04 46.57 100.00

Tree density of 12 year old Gliricidia sepium was 1600 trees ha-1 and the total tree basal area was 25.2
m ha . The 12 year old Gliricidia sepium had a mean DBH (diameter at breast height) of 45.68 cm. The
-1
2
total biomass of 12 year old Gliricidia sepium was calculated 98.04 t ha , and a single tree accounts about
-1
0.061 t biomass. The above ground components were contributed 94.68% and below ground components
were contributed 5.32 % biomass to the total biomass. A total of 46.57 t C ha was stored in the 12 year old
-1
Gliricidia sepium. A total of 94.68 % carbon was allocated in the above ground components whereas only
5.32 % carbon was allocated in the below ground components of the trees.

The carbon sequestration of existing twelve-year-old silvipasture in degraded wastelands is presented in
Figure 1.

Figure 1. Carbon sequestration (t ha ) of existing twelve-year-old silvipasture
–1
in degraded wastelands

152 Institute of Animal Nutrition, Centre for Animal Production Studies, TANUVAS
National Bank for Agriculture and Rural Development