

FOLLOWUS
1. School of Environmental Science and Engineering Sun Yat-san University
2. Nanjing Institute of geography and Limnology Chinese Academy of Sciences (NIGLAS)
3. Meteorology Institute PLA Tech. & Sci. University
网络首发:2013-01-31,
纸质出版:2006
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Chemical composition and its origin in spring rainwater over Taihu Lake[J]. 海洋湖沼学报(英文), 2006,24(4):421-427.
Xuemei, W., Longyuan, Y., Boqiang, Q. et al. Chemical composition and its origin in spring rainwater over Taihu Lake., Chin. J. Ocean. Limnol. 24, 421–427 (2006). https://doi.org/10.1007/BF02842859
Chemical composition and its origin in spring rainwater over Taihu Lake[J]. 海洋湖沼学报(英文), 2006,24(4):421-427. DOI: 10.1007/BF02842859.
Xuemei, W., Longyuan, Y., Boqiang, Q. et al. Chemical composition and its origin in spring rainwater over Taihu Lake., Chin. J. Ocean. Limnol. 24, 421–427 (2006). https://doi.org/10.1007/BF02842859 DOI:
Chemical compositions of rainwater collected in three stations in Taihu Lake in Jiangsu Province
China between March and May 2003 were analyzed through numerical simulations and field observation data. In terms of average ion deposition rate in spring at the air/water interface
of all anions
that of SO 4 2− was the largest followed by NO 3 −
whereas among all cations
Ca2+ concentration and the rate was the largest
and then NH 4 + was the next. The correlation of ion concentration indicated that the catchment of the lake has been artificially polluted considerably. Using backward trajectory analysis
the raining water in the stations in Taihu Lake was classified. In spring
marine-originated rain is the main contribution to this area
counting for 92.7% of the total precipitation
in which SO 4 2−
NO 3 − and NH 4 − contributed 89.2%
88.1%
and 88.3% respectively to the total spring-rain chemicals
whereas land-originated rains contributed in a small amount. However
the ion concentration in the land-originated rain was higher and acidic
causing considerable harm to local ecosystem. The analysis of backward trajectory analysis shows that three types of air masses influenced the chemical composition of the lake water
namely
air mass from NE direction
air mass from SW direction
and local air mass. Although the local air masses often produced small rainfall amount
but the nature of high ion concentration and high acidity impacted the local ecosystem rmmarkably. The ion concentration and rainfall from long-distance boreal air mass are clearly greater than those in austral air.
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