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Plant biomechanical strategies in response to frequent disturbance: Uprooting of Phyllostachys nidularia (Poaceae) growing on landslide-prone slopes in Sichuan, China
Stokes, Alexia; Lucas, Adrien; Jouneau, Luc
2007-07-01
发表期刊AMERICAN JOURNAL OF BOTANY
卷号94期号:7页码:1129-1136
文章类型Article
摘要Bamboo is considered useful for controlling landslides, but we observed numerous shallow-slope failures in forests of big node bamboo (Phyllostachys nidularia) in Sichuan, China. Therefore, we inventoried landslide occurrence and vegetation type along one valley. To quantify bamboo root anchorage, we performed uprooting tests and measured plant morphological characteristics. Landslide occurrence was greatest at sites with bamboo and young trees. Culm failure was common because of the high length to diameter ratio (242 +/- 6). Uprooting tests showed that the maximal force to cause failure was small (1615 +/- 195 N). Uprooting force was strongly and positively regressed with a combination of the predictors lateral root number and volume (R(2) = 0.92), and root systems were highly superficial (depth = 0.15 +/- 0.12 m), contributing little to slope stability. In P. nidularia, which grows on landslide-prone slopes, surprisingly few resources have been allocated to anchorage. We suggest that this strategy puts this pioneer at an advantage on steep slopes, where it contributes little to slope stability and colonizes frequently formed gaps through vegetative regeneration. Fewer disturbances would result in subsequent secondary succession and dying back of this shade intolerant species.
关键词Anchorage Disturbance Ecology Phyllostachys Nidularia Root Mechanics Vegetative Reproduction
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]RED SOIL REGION ; ROOT REINFORCEMENT ; ANCHORAGE ; TREES ; ARCHITECTURE ; CONSEQUENCES ; ENVIRONMENT ; RESISTANCE ; ALLOMETRY ; SEEDLINGS
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000249830800006
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被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9436
专题09年以前成果
作者单位1.Chinese Acad Sci, Inst Automat, LIAMA, INRA, Beijing 100080, Peoples R China
2.ENSAM, F-75013 Paris, France
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Stokes, Alexia,Lucas, Adrien,Jouneau, Luc. Plant biomechanical strategies in response to frequent disturbance: Uprooting of Phyllostachys nidularia (Poaceae) growing on landslide-prone slopes in Sichuan, China[J]. AMERICAN JOURNAL OF BOTANY,2007,94(7):1129-1136.
APA Stokes, Alexia,Lucas, Adrien,&Jouneau, Luc.(2007).Plant biomechanical strategies in response to frequent disturbance: Uprooting of Phyllostachys nidularia (Poaceae) growing on landslide-prone slopes in Sichuan, China.AMERICAN JOURNAL OF BOTANY,94(7),1129-1136.
MLA Stokes, Alexia,et al."Plant biomechanical strategies in response to frequent disturbance: Uprooting of Phyllostachys nidularia (Poaceae) growing on landslide-prone slopes in Sichuan, China".AMERICAN JOURNAL OF BOTANY 94.7(2007):1129-1136.
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