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Nitrogen and phosphorous removal efficiency of Deyeuxia angustifolia wetland ecosystem in Sanjiang Plain.

X. H. ngWei, Xiaoke Wang, Zhiyun Ouyang

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Abstract

An area(about 1 600 m~2) of Deyeuxia angustifolia wetland in Sanjiang Plain was selected to study the function of wetland ecosystems purifying environmental N and P pollutants.Results show that the N and P removal rates presented a rather steady trend during the vegetation growth and maturation periods,and the average removal rate was 85.62% and(85.94)%,respectively.The accumulated concentration of NH~+_4-N was significantly correlated with TN in the water body of the wetland.Input concentration,mowing and runoff all affected the purification function of the wetland and distribution of N and P.The removal rate decreased with the increase of input concentration and also with mowing.Limited runoff played little role in removing N and P.In a word,the purification efficiency of the Deyeuxia angustifolia wetland ecosystem in Sanjiang Plain was remarkable.The total removal rate of N and P reached 97.97% and 99.05%,respectively.

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What this paper is about

An area(about 1 600 m~2) of Deyeuxia angustifolia wetland in Sanjiang Plain was selected to study the function of wetland ecosystems purifying environmental N and P pollutants.Results show that the N and P removal rates presented a rather steady trend during the vegetation growth and maturation periods,and the average removal rate was 85.62% and(85.94)%,respectively.The accumulated concentration of NH~+_4-N was significantly correlated with TN in the water body of the wetland.Input concentration,mowing and runoff all affected the purification function of the wetland and distribution of N and P.The removal rate decreased with the increase of input concentration and also with mowing.Limited runoff played little role in removing N and P.In a word,the purification efficiency of the Deyeuxia angustifolia wetland ecosystem in Sanjiang Plain was remarkable.The total removal rate of N and P reached 97.97% and 99.05%,respectively.

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Available abstract

An area(about 1 600 m~2) of Deyeuxia angustifolia wetland in Sanjiang Plain was selected to study the function of wetland ecosystems purifying environmental N and P pollutants.Results show that the N and P removal rates presented a rather steady trend during the vegetation growth and maturation periods,and the average removal rate was 85.62% and(85.94)%,respectively.The accumulated concentration of NH~+_4-N was significantly correlated with TN in the water body of the wetland.Input concentration,mowing and runoff all affected the purification function of the wetland and distribution of N and P.The removal rate decreased with the increase of input concentration and also with mowing.Limited runoff played little role in removing N and P.In a word,the purification efficiency of the Deyeuxia angustifolia wetland ecosystem in Sanjiang Plain was remarkable.The total removal rate of N and P reached 97.97% and 99.05%,respectively.

Key concepts: Sanjiang Plain, Wetland, Ecosystem, Environmental science, Pollutant, Nitrogen, Animal science, Surface runoff

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Nitrogen and phosphorous removal efficiency of Deyeuxia angustifolia wetland ecosystem in Sanjiang Plain. — Research Paper | ScholarLens