| Wood Properties of Poplar from Stand Affected by Acid Rain |
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| 作者姓名： | ZHOU Dingguo MA LianxiangCollege of wood science and Technology Nanjing Forestry University. Nanjing . China |
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| 作者单位： | ZHOU Dingguo MA LianxiangCollege of wood science and Technology，Nanjing Forestry University. Nanjing 210037. China |
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| 摘 要： | Wood properties from 28 trees (Populus euramericana) selected from healthy and acid rain damaged forest were measured to evaluate the possible impacts on wood quality and utilization. On the heavily damaged location, the pH value of precipitation ranged from 3.7-5.0, and sulfate loading ranged from 20-40 kg·ha-2.y-1. Quantitative and qualitative studies on ring width, physical properties and mechanical properties indicated that changes of wood properties between diseased and healthy poplar occurred. Acid rain suppressed growth increment of trees in damaged forest. Comparing with healthy poplar, ring width of diseased poplar reduced significantly. The water content across the steni area differed enormously between diseased and healthy poplar. The deficiency in water of sapwood from diseased poplar was associated with a decrease of sapwood portion. Basic density of wood from diseased poplar reduced significantly. No significant difference in cellulose, pentosan and lignin were found between diseased and
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Wood Properties of Poplar from Stand Affected by Acid Rain |
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| ZHOU Dingguo MA LianxiangCollege of wood science and Technology,Nanjing Forestry University. Nanjing . China.Wood Properties of Poplar from Stand Affected by Acid Rain[J].中国林业科技(英文版),2002(3). |
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| Authors: | ZHOU Dingguo MA LianxiangCollege of wood science and Technology Nanjing Forestry University Nanjing China |
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| Institution: | ZHOU Dingguo MA LianxiangCollege of wood science and Technology,Nanjing Forestry University. Nanjing 210037. China |
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| Abstract: | |
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| Keywords: | acid rain poplar wood property |
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