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鄂西桑寄生植物多样性的海拔格局
Authors
合展
周友兵
高瑞如
Publication date
1 January 2020
Publisher
Doi
Cite
Abstract
桑寄生植物(桑寄生科)的分布与寄主选择性和生境相关。本研究沿海拔梯度(175~3106 m)设置3条样带共292个样方(20 m×20 m),调查了鄂西亚热带森林群落中桑寄生的分布,记录桑寄生植物多样性。结果表明:在研究区内共调查到7种桑寄生科植物,40种寄主植物;桑寄生植物分布的最低海拔是194 m,最高海拔是2011 m;物种多样性在海拔梯度上先上升后下降,相对集中分布在海拔600~1000 m范围内,呈现单峰分布格局;不同桑寄生科植物在不同寄主植物上的寄生强度不同,更偏好选择高大的落叶乔木作为寄主;桑寄生科植物在鄂西地区海拔梯度上呈"中度膨胀"(mid-elevation peak)的分布格局,可能与寄生植物偏好性及寄主多样性有关
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of Botany,Chinese Academy Of Sciences
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Last time updated on 09/06/2022