Biomass of Phragmites australis and Effect Factors Analyzing in Zha Long Wetland

Tao Zeng; Hui Huang

doi:10.4028/www.scientific.net/AMR.393-395.1119

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395Biomass of Phragmites australis and Effect Factors...

Biomass of Phragmites australis and Effect Factors Analyzing in Zha Long Wetland

Abstract:

Phragmites australis are the typical vegetation in Zha Long National Natural Reserve. From August 10th to August 21st in 2006, we chose 60 quadrats in 15 sample sites, investigated the reed biomass, height, diameter, water nitrogen and phosphorus concentration. The results are as follow: 1) the average biomass of Phragmites australis models is 2858g•m-2 and the biomass between 15 sample sites is from 2029.0 to 4067.4 g•m-2; 2) the moisture content of Phragmites australis is from 42.95% to 64.95%. The average height of Phragmites australis is 272.47cm, and the average diameter of Phragmites australis is 0.51cm; 3) the NP weight ratio in each sample site concentrate from 9.18 to 15.79. Nitrogen is the most important limiting factor in Phragmites australis vegetation growing while phosphorus is not the limiting factor; 4) the Phragmites australis biomass is restricted by many factors especially water depth and water nitrogen concentration. But the phosphorus concentration in water has irrelativeness with Phragmites australis biomass.

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Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

1119-1123

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.1119

Citation:

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Online since:

November 2011

Authors:

Tao Zeng, Hui Huang

Keywords:

Biomass, Natural Reserve, Nitrogen and Phosphorus Ratio, Phragmites australis, Wetland, Zha Long

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