Characteristics and Assessment on Nutrient Distribution in Water and Sediments of Xixi National Wetland Park in Hangzhou

WU Ming; SHAO Xue-xin; JIANG Ke-yi

By research on wetland water quality and nutrient distribution in sediments of Xixi Wetland,which is the first national wetland park in China,the results indicated that the water quality had been improved especially in Wuchang Creek and Deep Pond after sediment dredging.The other inspecting points were still bad and belonged to V or worse than V standard of water quality,which would not be qualified for the tourism.The total nitrogen and phosphorus contents were low in the surface sediments(0-20 cm) of wetland.The average contents of total nitrogen and phosphorus were 1.79 g·kg-1 and 0.80 g·kg-1 respectively.Spatially,the total nitrogen and phosphorus contents were lower in center wetland than that in outside.And it was the same situation in sediment dredging creeks.The distribution of nitrogen and phosphorus in sediments profiles indicated that the accumulation of nutrients had been reduced in center wetland,while it was improved in outside creeks which were disturbed by human activities more frequently.The total nitrogen and phosphorus contents in sediments of Xixi Wetland were lower than that in other wetland.However, the results of primarily assessment remind us of paying more attention to nutrient contents in sediments of Xixi Wetland,which had reached the environmental criterions.All the conclusions above would provide useful information for the farther reclamations of Xixi Wetland.

1. Research Institute of Subtropical Forestry,CAF

Received Date: 2006-12-06

Abstract: By research on wetland water quality and nutrient distribution in sediments of Xixi Wetland,which is the first national wetland park in China,the results indicated that the water quality had been improved especially in Wuchang Creek and Deep Pond after sediment dredging.The other inspecting points were still bad and belonged to V or worse than V standard of water quality,which would not be qualified for the tourism.The total nitrogen and phosphorus contents were low in the surface sediments(0-20 cm) of wetland.The average contents of total nitrogen and phosphorus were 1.79 g·kg-1 and 0.80 g·kg-1 respectively.Spatially,the total nitrogen and phosphorus contents were lower in center wetland than that in outside.And it was the same situation in sediment dredging creeks.The distribution of nitrogen and phosphorus in sediments profiles indicated that the accumulation of nutrients had been reduced in center wetland,while it was improved in outside creeks which were disturbed by human activities more frequently.The total nitrogen and phosphorus contents in sediments of Xixi Wetland were lower than that in other wetland.However, the results of primarily assessment remind us of paying more attention to nutrient contents in sediments of Xixi Wetland,which had reached the environmental criterions.All the conclusions above would provide useful information for the farther reclamations of Xixi Wetland.

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Reference (16)

[1]	郎惠卿,林　鹏,陆健健. 中国湿地研究和保护[M]. 上海:华东师范大学出版社, 1998
[2]	Keddy P A. Wetland ecology p rincip les and conservation[M]. Cambridg: Cambridge University Press, 2000
[3]	金相灿,屠清瑛. 湖泊富营养化调查规范(2版) [M]. 北京:中国环境科学出版社, 1990
[4]	范成新,杨龙元,张　路. 太湖底泥及其间隙水中氮磷垂直分布及其相互关系分析[J]. 湖泊科学, 2000, 12 (4) : 359 - 366
[5]	Boers P CM, RaaphorstW V, Molen D T V. Phosphorus retentionin sediments[J]. Wat Sci Tech, 1998, 37 (3) : 31 - 39
[6]	ShresthaM K, Lin C K. Determination of phosphorus saturation levelin relation to clay content in formulated pond muds[J]. Aquacultural Engineering, 1996, 15 (6) : 441 - 459
[7]	杨　洪,易朝路,谢　平,等. 武汉东湖沉积物碳氮磷垂向分布研究[J]. 地球化学, 2004, 33 (5) : 507 - 514
[8]	Sundby B, Gobeil C, SilverbergN. The phosphorus cycle in coastalmarine sediments [J]. Limnol Oceanogr, 1992, 37 ( 6 ) : 1129- 1145
[9]	国家环境保护总局. 水和废水监测分析方法( 4版) [M]. 北京:中国环境科学出版社, 2002
[10]	鲁如坤. 土壤农业化学分析方法[M]. 北京:中国农业科技出版社, 1999
[11]	刘恩峰,沈　吉,朱育新. 西太湖沉积物污染的地球化学记录及对比研究[J]. 地理科学, 2005, 25 (1) : 102 - 107
[12]	张修峰,何文珊,陆健健. 温州三垟湿地底泥氮、磷含量及其对水质的影响[J]. 湿地科学, 2004, 2 (3) : 192 - 196
[13]	沈亦龙,何品晶,邵立明. 太湖五里湖底泥污染特性研究[J]. 长江流域资源与环境, 2004, 13 (6) : 584 - 588
[14]	高　丽,杨　浩,周健民,等. 滇池水体和沉积物中营养盐的分布特征[J]. 环境科学研究, 2004, 17 (4) : 1 - 4
[15]	李任伟. 沉积物污染和环境沉积学[J]. 地球科学进展, 1998,13 (4) : 398 - 402
[16]	Mudroch A, Azcue D J M. Manual of aquatic sediment samp ling[M]. Boca Raton: Lewis Publications, 1995

Characteristics and Assessment on Nutrient Distribution in Water and Sediments of Xixi National Wetland Park in Hangzhou

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References

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