Training of National Correspondents on Assessing and Monitoring
Forest Land Use and Changes
November 17 to 21, 2003. FAO, Rome
Introduction to
National Reporting Tables on
Growing Stock, Biomass & Carbon
Dr. Kailash Govil
Outline
• Rationale
• Contents of the Tables
• Conclusion
Rationale of Tables 5,6 &7 (Growing Stock, Biomass, Carbon)
•Important for SFM
•Volume dynamics (space and time)
•Capacity to sequester Carbon
•Needed by international processes
•Thematic Area 1 of C&I processes
Content Table 5: Growing Stock
• Global Variables
•Growing Stock
•Commercial Growing Stock
• Time Series
•1990, 2000 and 2005
• Unit of reporting
•Volume in Million Cubic Meters
GS & Commercial GS
• Growing stock “GS”
•stem volume
•does not include Branches & Foliage
• Commercial Growing Stock
•trees giving merchantable timber
•part of “Growing stock
• Example India
The National Reporting Table 5
H. Input to global FRA 2005 (India, Page 24)
Volume in
"million" cubic meters
1990
2000
2005
Growing Stock
4335.4
4629.1
4639.1
Commercial
Growing Stock
1734.2
1851.6
1855.6
Volume Expansion Factor “VEF”
To estimate growing stock of trees not included in the inventory threshold
Inventory includes trees above 30 cm
Need Growing stock trees above 10 cm
Total Growing Stock
= VEF*Growing Stock above 30 cm
Content Table 6: Biomass
• Global Variables
•Above Ground Tree Biomass
•Below Ground Tree Biomass
•Woody Biomass
• Time Series
•1990, 2000 and 2005
• Unit of reporting
•Over Dry Weight (million metric tones)
Tree Biomass
}
Foliage &
Branches
Above Ground
}
Stem &
Stump
Below Ground
}
Roots
Estimating Live Biomass
Growing Stock “GS” per hectare (single or group of species in an inventory strata)
Biomass “BM” per hectare
(multiply “GS” with dry weight density & BEF)
Total Biomass
(multiply BM with strata area & add all strata)
Biomass Expansion Factor “BEF”
To covert Stem biomass per hectare into Total (including all parts of the tree) biomass per hectare.
Total Biomass per hectare
= BEF* Stem Biomass per hectare
The National Reporting Table 6
H. Input to global FRA 2005 (India, Page 26)
Biomass in "million" metric tones (Oven Dry Weight)
1990
2000
2005
Woody Biomass
-
-
-
Above Ground Tree Biomass
2396.6
2554.7
2560.3
Below Ground Tree Biomass
-
-
-
Content Table 7: Forest Carbon
• Global Variables
•Carbon in Above Ground Tree Biomass
•Carbon in Below Ground Tree Biomass
•Carbon in Woody Biomass
•Soil Carbon
• Time Series
•1990, 2000 and 2005
• Unit of reporting
•Weight in million metric tones
Estimating Carbon Stock
Carbon Stocks are normally estimated from biomass by using conversion factors. The default value of this factor is 0.5.
Carbon Stock = 0.5*Biomass Stock
The National Reporting Table 7
H. Input to global FRA 2005 (India, Page 28)
Carbon Stock
(above ground) million metric tones
1990
2000
2005
Carbon Stock (Above ground)
1084.3
1155.8
1158.4
With you on
Way to National Reporting!
