广东鹤山陆地生态系统豆科树种林抗酸能力初探 |
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| 出 版 社：资源生态环境网络研究动态 |
| 发表时间：2000 |
| 台 站：
鼎湖山森林生态系统定位研究站
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| 作 者：刘菊秀，周国逸，温达志 |
| 点 击 率：6953 |
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| 关 键 字：广东鹤山,陆地生态系统,豆科树种,抗酸能力 |
| 摘 要：对广东鹤山豆科树种林抗酸能力进行了研究，结果表明豆科树种林林冠有一定的抗酸能力，林内降水穿连雨pH值比大气降水高，但是从林冠层流失了大量的营养离子，林冠层负电荷的长期积累使豆科树种林更容易酸化豆科树种林0～10cm 层土壤酸化很严重，盐提pH值都在4.0以下，相对于较低的pH值，盐基饱和度比较高，都超过25%，土壤缓冲能力仍比较强。豆科树种大叶相思林土壤酸缓冲能力比马占相思林强。
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| 关 键 字(英文)：Guangdong province,Heshan,Terrestrial ecosystem ,Pea family,Anti-acidifica-tion ability |
| 摘 要(英文)：This paper studied the ant ac_dificat10n ability of pea family forests on Heshan，Guangdong province．The resuh showed that pea family forests had anti—acidification ability in a way．The pH value was higher in through fall than in rain fall，but lots of nutritious ions leached from canopies and canopies had more negative charge，which made pea family forests acidify easily in future．The anti—acidification ability of canopies in Acacia mangium was higher
than that in Schima superba．The soil of pea family forests in O～1O cm layer was also seriously acidified，with the pH value under 4.0 when the soil was extracted by l mol／L KCI．but the base cation saturation(BS) was above 25% in all soil，suggesting that the soils had a high buffering capacity．The soil of Acacia auriculaeformis forests had higher anti-acidificatio ability than the Acacia mangium forests． |
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 广东鹤山陆地生态系统豆料树种林抗酸能力初探.pdf |
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