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Characteristics of temporal and spatial distribution of water quality in urban wetland of the Xixi National Wetland Park, China



Characteristics of temporal and spatial distribution of water quality in urban wetland of the Xixi National Wetland Park, China



Huan Jing Ke Xue= Huanjing Kexue 31(9): 2036-2041



As the first national wetland park and the representatively urban wetland, Xixi wetland must provide the services of tourism and recreation especially. Based on the data which had been collected monthly from March to August in 2009, the objectives of this paper were to describe the characteristics of water quality in temporally and spatially. The results indicated that: (1) the characteristics of water quality in spatially are significantly corrected with the function of wetland. Total nitrogen (TN) and total phosphorus (TP) average concentrations are 0.78 mg/L and 0.07 mg/L respectively in natural ponds, while the concentrations of TN and TP in ornamental ponds are 1.37 mg/L and 0.17 mg/L respectively. The concentrations of TN and TP are 2.91 mg/L and 0.18 mg/L in natural streams and 1.91 mg/L and 0.09 mg/L in sight-seeing streams; (2) the nutrition in Xixi wetland is different in temporally. The nutrition in Xixi is at the level of moderate eutrophication, while the nutrition is higher in summer than it in spring; (3) the level of eutrophication in pounds is lower than it in streams, of which the level of eutrophication in natural ponds is lower than it in ornamental ponds and the level of eutrophication in natural streams is higher than it in sight-seeing streams by contraries. In order to improve water quality in Xixi wetland, the valid measure is to strengthen the management of ornamental ponds and natural streams.

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Accession: 052024940

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PMID: 21072921



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