A Case Study of Sugar Maple (Acer saccharum) as a Forest Seedling Bank Species
A Case Study of Sugar Maple (Acer saccharum) as a Forest Seedling Bank Species
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糖枫（Acer saccharum）作为森林苗木库树种的案例研究
DOI：
10.2307/2997242
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发表时间：
1998
影响因子：
0.3
通讯作者：
S. Gardescu
中科院分区：
文献类型：
--
作者：
P. Marks;S. Gardescu
MARKS, P. L. 和 S. GARDESCU（康奈尔大学生态与系统学部，伊萨卡，纽约 148532701，美国）。糖枫（Acer saccharum）作为森林苗木库树种的案例研究。 J.托里·博特。苏克。 125：287-296。 1998.-为了检查苗木库的存在和行为，对纽约州中部的混合阔叶林中的糖枫苗进行了 24 年的普查。每年我们都会测量永久地块中所有糖枫幼苗（单独标记）的高度。树苗的数量随着时间的推移一直持续存在，在阴凉处几乎没有净向上生长。该幼苗库通过补充新幼苗和低年死亡率来维持，一些糖枫幼苗在高度 < 1 m 时可存活超过 30 年。在一个实验性的树冠间隙中，长期受到抑制的糖枫幼苗的反应是高度大幅增长。因此，糖枫展现了苗木库的三个决定性特征：遮荫高度范围窄、遮荫持久性以及一旦光照增加就保持快速向上生长的能力。
MARKS, P. L. AND S. GARDESCU (Section of Ecology & Systematics, Cornell University, Ithaca, NY 148532701, USA). A case study of sugar maple (Acer saccharum) as a forest seeding bank species. J. Torrey Bot. Soc. 125:287-296. 1998.-To examine the existence and behavior of a seedling bank, seedlings of sugar maple were censused for 24 years in a mixed-hardwood forest in central New York State. Each year we measured the heights of all sugar maple seedlings (individually-marked) in permanent plots. The population of seedlings persisted through time, with little net upward growth, in the shade. This seedling bank was maintained both by recruitment of new seedlings and by low annual mortality, with some sugar maple seedlings surviving > 30 years at < 1 m height. In an experimental canopy gap, long-suppressed sugar maple seedlings responded with substantial height growth. Thus, sugar maple exhibited the three defining characteristics for a seedling bank: a narrow range of heights in the shade, persistence in the shade, and retention of the capacity to grow rapidly upward once light availability increased.