56 

angustata 135.6 gC m

-2

 yr

-1

 , Ipomoea reptans 82.3 gC m

-2

 yr

-1

, 

Brachiaria mutica 26.8 

gC m

-2

 yr

-1

, Colocasia esculenta 22.2 gC m

-2

 yr

-1 

, Ludwigia x taiwanensis Peng 17.5 gC 

m

-2

 yr

-1

. Also, we found that aquatic plants carbon fixation are positive relative with leaf 

area index (LAI) and leaf area. Totally, carbon fixation of five dominate

 

aquatic plants in 

Sinhai second phase artificial wetland is 211.0 gC m

-2

 yr

-1

. By means of image based 

event identification,We obtained the area of aquatic plants in Sinhai second phase 
artificial wetland is 35,652 m

2

, and that we can estimate the carbon fixation of aquatic 

plants in Sinhai second phase artificial wetland is 7.5 ton yr

-1

. 

Keywords: Carbon fixation, Artificial wetland, Aquatic plants, Image based event 

identification, Stratified random sampling. 

 

 

 

1.1  

(Ecological Engineering)

 

 

 

1.2  

 

 

 

1.3  

(Machate 

et al., 1997)

25% (Whalen, 2005)

(Carbon Source)
(Carbon Sink)(Kayranli 

et al., 2010) 

(Kadlec and Knight, 

1996)
(Closed Chamber Method)
(Estonia)
(Carbon Sequestration)

484-649 

kgC yr

-1

1500-2200 g C 

m

-2

 yr

-1

 (Mander et al., 2008)

/

22.0 g 

m

-2

 day

-1

17.9 g m

-2

 day

-1

(2006)