| 香港的酸雨和地表水酸度 |
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| 引用本文： | 管东生.香港的酸雨和地表水酸度[J].中国环境科学,2001,21(4):0-0. |
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| 作者姓名： | 管东生 |
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| 作者单位： | 中山大学环境科学系, |
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| 基金项目： | 香港研究资助局和香港大学研究基金资助项目 |
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| 摘 要： | 通过对香港新界小流域水文过程中pH值的监测,结果表明,在研究的5年期间,降雨pH值的中位数年变化为4.5～4.7,而溪流的pH值接近中性,其中位数年变化为6.6～6.8.研究表明,陆地生态系统的植被和土壤对地表水的酸度调节起着关键的作用,但不同的植被和植物种类组成对陆地生态系统的酸缓冲能力有重要影响.
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| 关 键 词： | 酸雨 地表水酸度 植被和土壤 缓冲能力 香港 |
| 文章编号： | 1000-6923(2001)04-0326-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2000年11月24 |
Acid precipitation and surface-water acidity in Hong Kong. |
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| GUAN Dong-sheng,Peart M. R..Acid precipitation and surface-water acidity in Hong Kong.[J].China Environmental Science,2001,21(4):0-0. |
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| Authors: | GUAN Dong-sheng Peart M R |
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| Institution: | GUAN Dong-sheng1,Peart M. R.2 |
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| Abstract: | This study focused on monitoring the pH value change of hydrologic process in a small basin of New Territory, Hong Kong. The results showed that in the period of 5 years of study the yearly variation of median values of the precipitation pH was 4.5 to 4.7, the pH median values of stream was close to neutral with its yearly variation of 6.6 to 6.8. This study indicated that vegetation and soil of land ecosystem played a key role on regulating the surface-water acidity. Various vegetation types and plant compositions had important influence on buffering ability for acid of the land ecosystem. |
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