| 土壤阳离子交换量的变化与欧洲栎生长势的研究 |
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| 引用本文： | 陈放鸣,李纯.土壤阳离子交换量的变化与欧洲栎生长势的研究[J].安徽农业大学学报,1993,20(2):113-117. |
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| 作者姓名： | 陈放鸣 李纯 |
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| 作者单位： | 安徽农业大学林学系
(陈放鸣)，安徽农业大学生物中心(李纯) |
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| 摘 要： | 对英国苏格兰西部地区欧洲栎林分的调查表明,由于环境的酸化,在表层土壤中(0—5cm)交换性阳离子含量与1981年相比明显下降,离子饱和度在9.8%-50.1%之间,平均为20.2%。小根的生长与3年前相比有所增加,但死根检出率也相应上升,这反映出养份的淋失,已对栎树生长造成一定影响。
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| 关 键 词： | 土壤酸度 栎树 欧洲栎 |
Study on the Response to Growing-power of the European Oak to the Change in Exchangeable Cation in Topsoil |
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| Chen Fangming,Li Chun.Study on the Response to Growing-power of the European Oak to the Change in Exchangeable Cation in Topsoil[J].Journal of Anhui Agricultural University,1993,20(2):113-117. |
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| Authors: | Chen Fangming Li Chun |
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| Institution: | Anhui Agricultural University |
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| Abstract: | Repeated analyses of exchangeable cations, K, Ca, Mg and Zn, Revealed that the pools havedecreased significantly in topsoil (0--5cm) of Balmacare's oak forest in Scotland during the1980's. The base saturation of the studied oak stands ranged between 11.7 and 59.2% (mean20. 2%). The current growth of fine roots showed?a larger increment from March to October in1991, as compared to that recorded 3 years ago. On contrast, the rate of dead fine roots in 1991was estimated at a percentage of 5 points higher than that in 1988. Soil acidification could be oneof reasons probably responsible for decline in growth of some oak forests. |
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| Keywords: | Soil acidification Cation exchange Fine root response Oak growth Repeated study |
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