## 2.19.4. Carbon Allocation to New Growth[¶](#carbon-allocation-to-new-growth "Permalink to this headline")
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There are two carbon pools associated with each plant tissue – one which represents the currently displayed tissue, and another which represents carbon stored for display in a subsequent growth period. The nitrogen pools follow this same organization. The model keeps track of stored carbon according to which tissue type it will eventually be displayed as, and the separation between display in the current timestep and storage for later display depends on the parameter \\(f\_{cur}\\) (values 0 to 1). Given \\(CF\_{alloc,leaf}\\) and \\(f\_{cur}\\), the allocation fluxes of carbon to display and storage pools (where storage is indicated with _\_stor_) for the various tissue types are given as:

(2.19.14)[¶](#equation-19-14 "Permalink to this equation")\\\[CF\_{alloc,leaf} \\\_ =CF\_{alloc,leaf\\\_ tot} f\_{cur}\\\]

(2.19.15)[¶](#equation-19-15 "Permalink to this equation")\\\[CF\_{alloc,leaf\\\_ stor} \\\_ =CF\_{alloc,leaf\\\_ tot} \\left(1-f\_{cur} \\right)\\\]

(2.19.16)[¶](#equation-19-16 "Permalink to this equation")\\\[CF\_{alloc,froot} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{1} f\_{cur}\\\]

(2.19.17)[¶](#equation-19-17 "Permalink to this equation")\\\[CF\_{alloc,froot\\\_ stor} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{1} \\left(1-f\_{cur} \\right)\\\]

(2.19.18)[¶](#equation-19-18 "Permalink to this equation")\\\[CF\_{alloc,livestem} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{3} a\_{4} f\_{cur}\\\]

(2.19.19)[¶](#equation-19-19 "Permalink to this equation")\\\[CF\_{alloc,livestem\\\_ stor} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{3} a\_{4} \\left(1-f\_{cur} \\right)\\\]

(2.19.20)[¶](#equation-19-20 "Permalink to this equation")\\\[CF\_{alloc,deadstem} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{3} \\left(1-a\_{4} \\right)f\_{cur}\\\]

(2.19.21)[¶](#equation-19-21 "Permalink to this equation")\\\[CF\_{alloc,deadstem\\\_ stor} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{3} \\left(1-a\_{4} \\right)\\left(1-f\_{cur} \\right)\\\]

(2.19.22)[¶](#equation-19-22 "Permalink to this equation")\\\[CF\_{alloc,livecroot} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{2} a\_{3} a\_{4} f\_{cur}\\\]

(2.19.23)[¶](#equation-19-23 "Permalink to this equation")\\\[CF\_{alloc,livecroot\\\_ stor} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{2} a\_{3} a\_{4} \\left(1-f\_{cur} \\right)\\\]

(2.19.24)[¶](#equation-19-24 "Permalink to this equation")\\\[CF\_{alloc,deadcroot} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{2} a\_{3} \\left(1-a\_{4} \\right)f\_{cur}\\\]

(2.19.25)[¶](#equation-19-25 "Permalink to this equation")\\\[CF\_{alloc,deadcroot\\\_ stor} \\\_ =CF\_{alloc,leaf\\\_ tot} a\_{2} a\_{3} \\left(1-a\_{4} \\right)\\left(1-f\_{cur} \\right).\\\]

