The importance of different forms of regeneration to secondary succession in a Maine hardwood forest
The importance of different forms of regeneration to secondary succession in a Maine hardwood forest
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缅因州阔叶林不同形式的再生对次生演替的重要性
DOI：
10.2307/2996645
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Alan S. White
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文献类型：
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作者：
Alan S. White
怀特，A.S.（缅因大学森林生物学系，奥罗诺，ME 04469）。缅因州阔叶林不同形式的再生对次生演替的重要性。公牛。托里·博特。俱乐部。 118：303-311。 1991.-对缅因州硬木林中砍伐的一岁整树的木本物种的再生进行了按物种的茎起源（提前再生、新苗或芽）的检查。豆芽在生物量中占主导地位 (79%)，新茎和高级再生分别贡献 13% 和 8%。相比之下，芽苗 (50%) 和新茎 (47%) 的密度大致均等。对发芽密度最重要的贡献者是水青冈 (Fagus grandifolia) (50%) 和杨属 (Populus spp)。 (25%)，但杨属植物。由于茎较大，对芽生物量的贡献最大（52%）。提前再生密度（仅占总密度的3％）几乎完全归因于糖枫（56％）和红枫（41％），但由于一块地块中存在一些大型个体，后者在提前茎的生物量（81％）中占主导地位。 Prunus pensylvanica (18%)、Rubus spp. (34%) 和桦木属植物。 (35%) 主导新茎密度，但前两者贡献了新茎生物量的 83%。上述物种的出现频率为37-80%，除A. pensylvanicum和Betula spp.外，每个物种均在至少一块地块的生物量中占主导地位（占比>80%）。大多数物种主要以一种再生形式为代表：A. pensylvanicum、F. grandifolia 和 Populus spp。 （豆芽）；桦木属 (Betula spp.)、李属 (Prunus pensylvanica) 和悬钩子属 (Rubus spp.) （新苗）。 A. saccharum 和 A. rubrum 以芽苗、高级幼苗和/或新幼苗的混合物为代表。
WHITE, A. S. (Department of Forest Biology, University of Maine, Orono, ME 04469). The importance of different forms of regeneration to secondary succession in a Maine hardwood forest. Bull. Torrey Bot. Club. 118: 303-311. 1991.-Regeneration by woody species on a 1-year-old whole-tree harvested clearcut in a Maine hardwood stand was examined with respect to stem origin (advance regeneration, new seedlings, or sprouts) by species. Sprouts dominated (79%) the biomass with new stems and advanced regeneration contributing 13% and 8%, respectively. In contrast, density was about evenly divided between sprouts (50%) and new stems (47%). The most important contributors to sprout density were Fagus grandifolia (50%) and Populus spp. (25%), but Populus spp. contributed the most to sprout biomass (52%) due to the greater size of their stems. Advance regeneration density (only 3% of total density) was due almost entirely to Acer saccharum (56%) and Acer rubrum (41%), but the latter dominated the biomass of advance stems (81%) due to a few large individuals in one plot. Prunus pensylvanica (18%), Rubus spp. (34%), and Betula spp. (35%) dominated new stem density, but the first two contributed 83% of the new stem biomass. Frequency of occurrence for the abovementioned species ranged from 37-80%, and each species, with the exception of A. pensylvanicum and Betula spp., dominated (accounted for > 80%) the biomass of at least one plot. Most species were represented primarily by one form of regeneration: A. pensylvanicum, F. grandifolia, and Populus spp. (sprouts); Betula spp., Prunus pensylvanica, and Rubus spp. (new seedlings). A. saccharum and A. rubrum were represented by a mixture of sprouts, advanced seedlings, and/or new seedlings.