Team # 2202838 Page 5 of 25
Table 1: Notations used in this paper
Symbol Description
the total amount of carbon sequestration in year
the carbon sequestration of forests in year
the carbon sequestration of forest products in year
the amount of forest carbon sequestration used for the p-type product in year
the carbon sequestration of forest trees in year
the carbon sequestration of understory plants in year .
the carbon sequestration of the wood soil in year
the carbon sequestration capacity factor
carbon sequestration value
biodiversity value
cultural value
recreational value
the cost per unit area needed to realize the h-type value of the selected forest
4 Carbon Sequestration Model
Before establishing carbon sequestration model, we need to understand the main approaches
to sequestering carbon. It is reported that soils and plants sequester three times as much carbon as
the atmosphere, with forests accounting for 45%. The world's forests absorbed more than a quarter
of global carbon emissions between 2006 and 2015. Forest sequestration of carbon dioxide is
dynamic: trees absorb
from the atmosphere through photosynthesis and convert it into
biomass stored in different parts of the plant body
[3]
.
Meanwhile, forest carbon sequestration
continuously transfers among carbon pools.
Natural disturbances, decay of dead wood,
and forest respiration contribute to the release
of
into the atmosphere. The carbon fixed
by trees will be transferred to forest products
due to logging, which will lead to the change
of forest carbon sink. We can store the fixed
carbon in wood forest products for different
lengths of time depending on the end use.
Therefore, forests and wood forest products
are therefore an important component of the
global carbon cycle. Figure 2 shows the role
of forests and forest products in the global
carbon cycle.
Figure 2: The roles of forests and forest
products in the global carbon cycle
And we can define the total amount of carbon sequestration in year as
(1)
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