Study on Root Strength Characteristics of Pioneer Plants in Landslides Scars,Reservoir Watershed

ZHANG Jun-bin; HUANG Shi-yang; CHEN Yi-chang; LUO Xu-hui

doi:10.19303/j.issn.1008-0384.2013.11.002

Volume 28 Issue 11

Nov. 2013

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ZHANG Jun-bin, HUANG Shi-yang, CHEN Yi-chang, LUO Xu-hui. Study on Root Strength Characteristics of Pioneer Plants in Landslides Scars,Reservoir Watershed[J]. Fujian Journal of Agricultural Sciences, 2013, 28(11): 1072-1077. doi: 10.19303/j.issn.1008-0384.2013.11.002

Citation:

ZHANG Jun-bin, HUANG Shi-yang, CHEN Yi-chang, LUO Xu-hui. Study on Root Strength Characteristics of Pioneer Plants in Landslides Scars,Reservoir Watershed[J]. Fujian Journal of Agricultural Sciences, 2013, 28(11): 1072-1077. doi: 10.19303/j.issn.1008-0384.2013.11.002

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Study on Root Strength Characteristics of Pioneer Plants in Landslides Scars,Reservoir Watershed

doi: 10.19303/j.issn.1008-0384.2013.11.002

1. Chungchou University of Science and Technology;
2. Department of Soil and Water Conservation,Chung-Hsinga University;
3. Land Consolidation Engineering Bureau;
4. Department of Water Resources Engineering and Conservation,Feng Chia University;
5. Institute of Agricultural Ecology,Fujian Academy of Agricultural Sciences/Fuzhou Scientific Observing and Experimental Station of Agro-Enviroment Ministry of Agriculture

Received Date: 2013-10-12
Publish Date: 2013-11-18

Abstract

Abstract

The geology of Shi-Men reservoir watershed is very weak and the slope is very steep.Above 800hectare landslide after Typhoon Aili pounded Taiwan with strong winds and heavy rains.According to vegetation investigation, we choose five of the most important pioneer plants at landslide scars.We investigate the root distribution and evaluate the slope stability.In order to obtain root strength model from pulling resistance and root tensile strength test that analyze the tests' datum by statistical regression.The best estimator for pulling resistance (P) with basal diameter (D) are Taiwan hibiscus:P=5.10D1.49;Subcostate crape myrtle:P=2.82D1.96;Paper mulberry:P=11.75D0.74;Roxburgh sumac:P=12.56D1.32;Indiacharcial trema:P=8.52D1.18.The ability of pulling resistance is Roxburgh sumac>Subcostate crape myrtle>Taiwan hibiscus>Indiacharcial trema>Paper mulberry under fixed root diameter condition.Therefore Roxburgh sumac and Subcostate crape myrtle are really obvious about providing slope stability.
- landslide area,
- pioneer plant,
- root strength Characteristics,
- pulling resistance

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References(7)

References

[1]	吴正雄.树根力与坡面稳定关系之研究[J].中华水土保持学报, 1993, 24 (2) :23-27.
[2]	颜正平.根系型在水土保持适用效能之研究[D].中兴大学, 2000:25-41.
[3]	张俊斌.中横崩塌地优势植物植生特性与根力特性之研究[D].中兴大学, 1995:12-21, 99-111.
[4]	CHANG C P, CHEN Y C, LIN S H, et al.Development of nondestructive root strength models for pioneer plants of earthquake landslides areas in Taiwan[J].Agricultural Engineering Journal, 2005, 14 (3) :109-115.
[5]	阿部和时.『根系の引き拔抵力によるセン断补强度の推定[J].日本绿化工学会志, 1991, 16 (4) :37-45.
[6]	林信辉, 高齐治, 西南部泥岩地区刺竹根力特性之研究[J].中华水土保持学报, 1999, 30 (1) :1-12.
[7]	林信辉, 张俊斌, 李明儒, 等.泥岩地区冬青菊与苦蓝盘非破坏性生长量评估模式[J].中华水土保持学报, 2001, 32 (3) :193-203.