A Framework for Identifying Plant Species to Be Used as 'Ecological Engineers' for Fixing Soil on Unstable Slopes

doi:10.1371/journal.pone.0095876

	A Framework for Identifying Plant Species to Be Used as 'Ecological Engineers' for Fixing Soil on Unstable Slopes
	Ghestem, Murielle 1; Cao, Kunfang 2; Ma, Wenzhang3 ; Rowe, Nick 4; Leclerc, Raphaelle 5; Gadenne, Clement 6; Stokes, Alexia 7; Ghestem,M (reprint author),DALETT,CETE SO,Toulouse,France.; yellownosed@gmail.com
	2014-08-08
发表期刊	PLOS ONE
ISSN	1932-6203
卷号	9 期号:8 页码:e95876
摘要	Major reforestation programs have been initiated on hillsides prone to erosion and landslides in China, but no framework exists to guide managers in the choice of plant species. We developed such a framework based on the suitability of given plant traits for fixing soil on steep slopes in western Yunnan, China. We examined the utility of 55 native and exotic species with regard to the services they provided. We then chose nine species differing in life form. Plant root system architecture, root mechanical and physiological traits were then measured at two adjacent field sites. One site was highly unstable, with severe soil slippage and erosion. The second site had been replanted 8 years previously and appeared to be physically stable. How root traits differed between sites, season, depth in soil and distance from the plant stem were determined. Root system morphology was analysed by considering architectural traits (root angle, depth, diameter and volume) both up-and downslope. Significant differences between all factors were found, depending on species. We estimated the most useful architectural and mechanical traits for physically fixing soil in place. We then combined these results with those concerning root physiological traits, which were used as a proxy for root metabolic activity. Scores were assigned to each species based on traits. No one species possessed a suite of highly desirable traits, therefore mixtures of species should be used on vulnerable slopes. We also propose a conceptual model describing how to position plants on an unstable site, based on root system traits.
关键词	Root-reinforcement Tree Roots Stability Analysis Land Conversion Gully Erosion Growth Habit China Strength Rehabilitation Resistance
学科领域	Science & Technology - Other Topics
DOI	10.1371/journal.pone.0095876
收录类别	SCI
语种	英语
WOS记录号	WOS:000343231900001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/18371
专题	中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者	Ghestem,M (reprint author),DALETT,CETE SO,Toulouse,France.; yellownosed@gmail.com
作者单位	1.AgroParis Tech, UMR AMAP, Montpellier, France 2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla, Yunnan, Peoples R China 3.Kunming Inst Bot, Kunming, Yunnan, Peoples R China 4.CNRS, UMR AMAP, Montpellier, France 5.CNRS, UMR CEFE, Montpellier, France 6.AgroParisTech, Ctr Nancy, Nancy, France 7.INRA, UMR AMAP, F-34060 Montpellier, France
推荐引用方式 GB/T 7714	Ghestem, Murielle,Cao, Kunfang,Ma, Wenzhang,et al. A Framework for Identifying Plant Species to Be Used as 'Ecological Engineers' for Fixing Soil on Unstable Slopes[J]. PLOS ONE,2014,9(8):e95876.
APA	Ghestem, Murielle.,Cao, Kunfang.,Ma, Wenzhang.,Rowe, Nick.,Leclerc, Raphaelle.,...&yellownosed@gmail.com.(2014).A Framework for Identifying Plant Species to Be Used as 'Ecological Engineers' for Fixing Soil on Unstable Slopes.PLOS ONE,9(8),e95876.
MLA	Ghestem, Murielle,et al."A Framework for Identifying Plant Species to Be Used as 'Ecological Engineers' for Fixing Soil on Unstable Slopes".PLOS ONE 9.8(2014):e95876.

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