| 淋溶在红树植物秋茄落叶分解失重中的潜在作用 |
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| 引用本文： | 范航清,林鹏.淋溶在红树植物秋茄落叶分解失重中的潜在作用[J].海洋与湖沼,1995,26(1):28-33. |
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| 作者姓名： | 范航清 林鹏 |
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| 作者单位： | 厦门大学生物学系!厦门，361005，广西红树林研究中心，广西北海，536000，厦门大学生物学系!厦门，361005 |
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| 基金项目： | 国家自然科学基金!4870293 |
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| 摘 要： | 于１９８６年冬－１９８９年秋在福建省九龙江口，连续３年分季节进行红树植物秋茄落叶在林地滩面的分解实验，并在室内测定其落叶和腐叶的可溶性物质含量，定量探讨淋溶在落叶分解失重中的潜在作用。结果表明，可溶性物质平均占落叶干重的２７．２６％，这些可溶性物质中的８７％在分解初期的快速淋溶阶段迅速损失，可导致落叶初始干重损失２４％。快速淋溶阶段持续时间平均分别是，春季３６ｄ，夏季，１３ｄ，秋季，１７ｄ，冬季５
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| 关 键 词： | 红树林 秋茄 落叶 分解 淋溶 失重 |
| 收稿时间： | 1991/6/22 0:00:00 |
| 修稿时间： | 1994/7/12 0:00:00 |
POTENTIAL ROLE OF LEACHING IN WEIGHT LOSS DURING THE DECOMPOSITION OF MANGROVE KANDELIA CANDEL LEAF LITTER |
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| Fan Hangqing and Lin Peng.POTENTIAL ROLE OF LEACHING IN WEIGHT LOSS DURING THE DECOMPOSITION OF MANGROVE KANDELIA CANDEL LEAF LITTER[J].Oceanologia Et Limnologia Sinica,1995,26(1):28-33. |
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| Authors: | Fan Hangqing and Lin Peng |
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| Institution: | Department of Biology, Xiamen University, Xiamen 361005;Department of Biology, Xiamen University, Xiamen 361005 |
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| Abstract: | The 1986-1989 seasonal in situ decomposition of mangrove, Kandelia candel(L.) druce, leaf litter in Jiulongjiang River Estuary, Fujian, was observed. The content of soluble matter in freshly fallen and decayed leaves was measured. In orderto quantitatively evaluate the potential role of leaching in the process of weightlossduring decomposition of leaf litter.The results showed that there was a mean of 27.26 % DW of soluble matter inthe freshly fallen leaves, which was rapidly leached out during the early stage ofdecomposition. The process of leaching could be divided into three stages: fast stage, relatively stable stage and extensive stage. In the fast leaching stage, about 87 %of original soluble matter was lost, giving rise to a loss of 24 % of the initial leafdry weight. The duration of the fast leaching stage, which considerably decreaseswith increasing water temperature, was average of 36d in spring, 13d in summer,17d in autumn and 56d in winter, roughly equivalent to 5/7 of the half-time ofleaf decolnposition. Therefore, leaching was evidently responsible for both the rapidloss of leaf dry weight and the most significant differences between seasonal decomposition rates in the early decomposition stage. |
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| Keywords: | Mangrove Kandelia candel Leaf litter Decomposition Leaching Weight loss |
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