| 引用本文: | 罗军,王晓蓉,杨翃,郁建珍,杨龙元,秦伯强.太湖梅梁湾上空颗粒态磷浓度2003年春季的变化.湖泊科学,2005,17(2):151-156. DOI:10.18307/2005.0210 |
| LUO Jun,WANG Xiaorong,YANG Hong,YU Jianzhen,YANG Longyuan,QIN Boqiang.Concentrations of Aerosol Phosphorus in Spring, 2003 above Meiliang Bay, Lake Taihu. J. Lake Sci.2005,17(2):151-156. DOI:10.18307/2005.0210 |
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| 太湖梅梁湾上空颗粒态磷浓度2003年春季的变化 |
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罗军1, 王晓蓉1, 杨翃2, 郁建珍2, 杨龙元3, 秦伯强3
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1.污染控制与资源化国家重点实验室, 南京大学环境学院, 南京210093;2.香港科技大学化学系, 香港九龙清水湾;3.中国科学院南京地理与湖泊研究所, 南京210008
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| 摘要: |
| 太湖水体氮磷营养盐的研究比较多,但对大气营养物质的输入研究方面仍鲜有报道.通过定期采集太湖梅梁湾地区上空颗粒物,测定颗粒中各种形态磷(可溶性无机磷、有机磷、难溶性磷)浓度,探讨大气磷输入对梅梁湾水质的磷的贡献.结果表明2003年春季梅梁湾上空平均颗粒态磷浓度分别为0.157μg/m3,其中水溶性无机磷的含量在15.6%-51.0%.最后估算了春季大气总磷输入量,春季两次采样周期中大气磷沉降通量相差不大.进一步估算了大气总磷的沉降通量最大为0.57kg(hm2·a)(6.84t/a),显示大气沉降对太湖水体的影响. |
| 关键词: 磷 富营养化 太湖 大气沉降 梅梁湾 |
| DOI：10.18307/2005.0210 |
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| 基金项目:国家自然科学基金项目(40110734)教育部科学技术项目(03079)联合资助． |
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| Concentrations of Aerosol Phosphorus in Spring, 2003 above Meiliang Bay, Lake Taihu |
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LUO Jun1, WANG Xiaorong1, YANG Hong2, YU Jianzhen2, YANG Longyuan3, QIN Boqiang3
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1.State Key Lab. of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210093, P. R. China;2.Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China;3.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China
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| Abstract: |
| Lake Taihu is one of the five largest freshwater lakes and also one of the most-studied and better-understood water bodies in China, There have been many studies on nutrient distribulion and concentrations in the water body;however, the amount and chemical forms of nutrients input from the atmosphere to Meiliang Bay are largely unknown.To fully understand and assess the impact of atmospheric P on water quality of Meiliang Bay, we have quantified the atmospheric input of P by measuring its concentrations in aerosols during spring of 2003.Aerosol samples were collected at eastern part of the lake for determination of phosphorus concentrations in the atmospheric aerosols.The aerosol P was spec-iated into soluble inorganic phosphorus, insoluble inorganic phosphorus, and organic phosphorus.The average concentrations of the lotal aerosol P in spring are 0.157 μg/m3.And about 15.6%-51.0% of atmospheric phosphorus is soluble inorganic phosphorus.Through estimating the flux of aerosol phosphorus to Meiliang Bay, we found that dry deposition of P has an important mipacl on the water quality of Meiliang Bay. |
| Key words: phosphorus eutrophication Lake Taihu aerosol atmosphere Meiliang Bay |
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