Spatial patterns and associations in a Quercus-Betula forest in northern China
Spatial patterns and associations in a Quercus-Betula forest in northern China
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DOI：
10.1111/j.1654-1103.2004.tb02278.x
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发表时间：
2004-06-01
影响因子：
2.8
通讯作者：
Ma, KP
中科院分区：
文献类型：
--
作者：
Hou, JH;Mi, XC;Ma, KP
问：种特异性更新策略和竞争是促进辽东栎温带落叶林物种共存的主导过程吗？所在地：方法：利用Ripley's K函数，对辽东栎（Quercus liaotungensis）和白桦（Betula dahurica）两个优势树种和一个常见的亚冠层树种色木槭（Acer mono结果：3种植物的幼苗、幼树和成虫在大多数空间尺度上均呈聚集分布。栎属幼苗和幼树与同种成年树和空间独立的死树，种子传播和营养更新的影响栎属树木的空间格局。在小尺度上，白桦幼苗和幼树与同种成虫的活树和死树均呈正相关（
Question: Are species-specific regeneration strategies and competition the dominant processes facilitating species coexistence in a Quercus liaotungensis dominated temperate deciduous forest?Location: Dongling Mountains, North China, 1300 m a.s.l.Methods: Ripley's K-function was used to characterize the spatial patterns and spatial associations of two dominant tree species, Quercus liaotungensis and Betula dahurica, and a common subcanopy species, Acer mono, at different growth stages (adult, sapling, seedling).Results: Seedlings, saplings and adults of all three species exhibited clumped distributions at most spatial scales. Quercus seedlings and saplings were positively associated with conspecific adult trees and spatially independent of dead trees suggesting that seed dispersal and vegetative regeneration influenced the spatial patterning of Quercus trees. Betula seedlings and saplings were positively associated with both live and dead trees of conspecific adults at small scales (