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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
Source PublicationAMERICAN JOURNAL OF BOTANY
2007-07-01
Volume94Issue:7Pages:1129-1136
SubtypeArticle
AbstractBamboo 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.
KeywordAnchorage Disturbance Ecology Phyllostachys Nidularia Root Mechanics Vegetative Reproduction
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordRED SOIL REGION ; ROOT REINFORCEMENT ; ANCHORAGE ; TREES ; ARCHITECTURE ; CONSEQUENCES ; ENVIRONMENT ; RESISTANCE ; ALLOMETRY ; SEEDLINGS
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000249830800006
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9436
Collection09年以前成果
Affiliation1.Chinese Acad Sci, Inst Automat, LIAMA, INRA, Beijing 100080, Peoples R China
2.ENSAM, F-75013 Paris, France
Recommended Citation
GB/T 7714
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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