| 惠州市酸雨演变的生态学意义 |
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| 引用本文： | 张修峰.惠州市酸雨演变的生态学意义[J].农业环境科学学报,2006(Z2). |
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| 作者姓名： | 张修峰 |
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| 作者单位： | 暨南大学水生生物研究所 广东广州510632 |
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| 摘 要： | 根据1997—2004年惠州市降水中酸雨频率、pH值、硝酸根和硫酸根等的浓度,研究了惠州市酸雨演变的生态学意义。结果表明,近年来惠州市的酸雨频率有明显增加的趋势;酸雨强度为弱酸型酸雨;酸雨类型仍以硫酸型酸雨为主,但随着SO2造成酸雨的贡献率降低,氮的氧化物的贡献率急剧增加,酸雨类型进一步接近于硝酸型;降水中氮营养盐含量较高,且有逐年升高的趋势,其中2004年的总氮含量较1997年的增加了一倍多。虽然目前降水尚未达到硝酸型的程度,但这种转变具有深远的生态学意义,特别是降水中氮的影响不容忽视。
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| 关 键 词： | 酸雨 类型演变 生态学意义 |
Ecological Significance of Acid Rain Transformation in Huizhou City |
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| ZHANG Xiu-feng.Ecological Significance of Acid Rain Transformation in Huizhou City[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2006(Z2). |
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| Authors: | ZHANG Xiu-feng |
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| Abstract: | At present acid rain has aroused a great concern of people,but little previous research has been completed on the acid rain transformation.Based on the frequency of acid rain,pH and the concentration of NO3-and SO42-in the rain water of Huizhou city from 1997 to 2004,the change of the acid rain type and its ecological significance were studied.The results showed that in the past few years,the frequency of the acid rain tended to increase,especially,after 2000 and the type of acid rain was still belonged to sulphuric acid rain type.At the same time,it was clear that with the development of modern industry and modern traffic,more and more NOX were released into air and the concentration of NOX was raised quickly with time,so the type of the acid rain was transforming to nitric acid rain type and the nitrogen concentration in the rainfall was higher and higher;Though the acid rain is not nitric acid rain type at present,the transformation is very important and has profound ecological significance,especially the compounds containing nitrogen in rainfall. |
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| Keywords: | acid rain type transformation ecological significance |
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