| Effects of simulated acid rain on saplings of Pinus massoniana and Cunninghamia lanceolata |
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| 作者姓名： | Shan Yuenfeng Feng Zongwei |
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| 作者单位： | Shan Yuenfeng and Feng Zongwei Research Center for Eco-Environmental Sciences，Academia Sinica，Beijing 100083，China |
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| 摘 要： | The effects of simulated acid rain with pH values of 6.63 (control, 4.5, 3.0, and 2.0 on saplings of Pinus massoniana and Cunninghamia lanceolate, were studied. The results showed that the pH of C.lanceolate, leaf sap and soil decreased as the acidity of rainfall increased. The acid rain with very low pH had significant effects on the photosynthetic rates per plant, but not on that of the per unit weight of dry leaves. The respiration rates of the two species were stimulated. Root and leaf boimass, but not stem biomass, were also reduced tremendously during a seven months period.
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| 关 键 词： | acid rain net photosynthetic rate respiration rate soil pH biomass. |
| 收稿时间： | 1/1/1989 12:00:00 AM |
Effects of simulated acid rain on saplings of Pinus massoniana and Cunninghamia lanceolata |
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| Shan Yuenfeng,Feng Zongwei.Effects of simulated acid rain on saplings of Pinus massoniana and Cunninghamia lanceolata[J].Journal of Environmental Sciences,1989,1(2):54-59. |
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| Authors: | Shan Yuenfeng and Feng Zongwei Research Center for Eco-Environmental Sciences Academia Sinica Beijing China |
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| Institution: | Shan Yuenfeng and Feng Zongwei Research Center for Eco-Environmental Sciences,Academia Sinica,Beijing 100083,China |
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| Abstract: | The effects of simulated acid rain with pH values of 6.63 (control, 4.5, 3.0, and 2.0 on saplings of Pinus massoniana and Cunninghamia lanceolate, were studied. The results showed that the pH of C.lanceolate, leaf sap and soil decreased as the acidity of rainfall increased. The acid rain with very low pH had significant effects on the photosynthetic rates per plant, but not on that of the per unit weight of dry leaves. The respiration rates of the two species were stimulated. Root and leaf boimass, but not stem biomass, were also reduced tremendously during a seven months period. |
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| Keywords: | acid rain net photosynthetic rate respiration rate soil pH biomass |
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