Information-Modeling Technology for the Environmental Monitoring - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 110

Table 1.18 The characteristics of fluxes (10 6 t/year) and reservoirs (10 6 t) of phosphorus in the

biosphere/climate/society system
Reservoirs and fl fluxes of phosphorus Identi er Estimate

Phosphorus supplies
In the atmosphere P A 3

On land P S 1,546

2 × 10 4 In the photic layer of the World Ocean P U

10 4 In deep layers of the World Ocean P L 12 ×

Volcanic emissions

H 1

0 2

-

Fertilization

H 2

19

Assimilation by plants

H 3

45.34

H 4

Input with dead plants 39.34

Input due to organisms functioning
On land

H 5

5

In the World Ocean

H 20

81.5

Transition into the unassimilable form

H 6

2.9

Weathering

H 7

5

Falling-out with precipitation
On land H 8 1.8

On the oceans H 16 2

Removal with sh catch

H 9

0.06

Removal by birds

H 10

0.04

Washing-out and sink into the World Ocean

H 11

4 14

-

Input due to detritus lysis in the oceans
Photic layer H 18 550

Deep layers H 12 159

Exchange between photic and deep layers of the ocean
Lifting

H 15

96.1

Descending

H 14

22

H 13 Precipitation 13 - 83.9

Rock weathering H 19 1

Photosynthesis H 17 630 1,300

-

Describe the hydro-chemical cycle of phosphorus by a totality of fl uxes

H k k ¼ 9 18 P U ; 0 , H 15 ¼

p 10 P L = P L ; 0 , H 16 ¼ p 12 R WO P A = P A ; 0 , H 17 ¼ p 13 R U , H 18 ¼ p 15 R DU , H 20 ¼ p 16 M U ,
where R D is the rate of the dead organic matter decomposition, R WO is precipitation
over the ocean, R ʦ is the produce of phytoplankton and other living organisms in
the ocean, M ʦ is the rate of the living biomass dying-off, pi i (i =8

ð ; 20 Þ : H 12 ¼ p 14 R DL , H 13 ¼ p 8 P L = P L ; 0 , H 14 ¼ p 9 P U =

- 16) are the

proportion constants.