Early Successional Patterns of Forest Species: Interactions of Life History Traits and Disturbance
Early Successional Patterns of Forest Species: Interactions of Life History Traits and Disturbance
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森林物种的早期演替模式：生活史特征与干扰的相互作用
DOI：
10.2307/1940221
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发表时间：
1989
期刊：
影响因子：
4.8
通讯作者：
Charles B. Halpern
中科院分区：
文献类型：
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作者：
Charles B. Halpern
研究人员对俄勒冈州喀斯喀特山脉西部两片被砍伐和烧毁的黄杉森林 21 年的演替过程中维管束植物物种的丰度模式进行了检查。大多数森林林下物种在干扰中得以生存。大多数定殖物种在燃烧后 2 年内建立。个体物种的反应是通过一系列广泛重叠的、恒定性和树冠覆盖的单峰曲线来描述的，其起始时间、持续时间和幅度各不相同。因此，早期演替变化的特点是一般持久性物种的丰度逐渐变化。确定了十一种种群模式（物种组）。生活史特征和干扰的相互作用解释了最常见物种的时间趋势。在入侵物种群体中，初始建立的时间以及丰度峰值的时间和强度与繁殖体的起源、物候特征、营养扩张的潜力以及干扰的时空变化有关。入侵物种的丰度模式也受到随机和历史因素的影响。不同地点之间物种的对比反应反映了伐木和砍伐历史的差异。在残余物种群体中，丰度的时间模式反映了初始物种分布、对伐木和燃烧干扰的抵抗力、繁殖方式、形态特征以及干扰强度的空间变化。这些观察结果表明，黄杉森林的早期次生演替具有确定性成分，建立在现有物种的生活史特征中，并且
Patterns of abundance were examined for vascular plant species during 21 yr of succession in two clear-cut and burned Pseudotsuga forests in the western Cascade Range of Oregon. A majority of forest understory species persisted through disturbance. Most colonizing species established within 2 yr after burning. Individualistic species re- sponses were described by a series of broadly overlapping, unimodal curves of constancy and canopy cover, differing in time of initiation, duration, and magnitude. Thus, early successional change was characterized by gradual shifts in the abundance of generally persistent species. Eleven population patterns (species groups) were identified. Interactions of life history traits and disturbance explain the temporal trends of the most common species. Within the groups of invading species, the timing of initial establishment, as well as the timing and magnitude of peak abundance were related to the origin of propagules, phenological traits, potential for vegetative expansion, and temporal and spatial variation in disturbance. Abundance patterns of invading species were also influenced by stochastic and historical factors. Contrasting responses of species between sites reflected differences in histories of logging and slash burning. Within the groups of residual species, temporal patterns of abundance reflected initial species distributions, resistance to logging and burning distur- bance, mode of reproduction, morphological traits, and spatial variation in disturbance intensity. These observations suggest that early secondary succession in Pseudotsuga forests has a deterministic component, founded in the life history traits of the available species, and
角明：气象研究报告（1989）。
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理论物理进展第 79 卷（1988）
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