DOI: 10.1016/j.foreco.2014.01.015
Scopus记录号: 2-s2.0-84893924397
论文题名: Invasion of an annual exotic plant into deciduous forests suppresses arbuscular mycorrhiza symbiosis and reduces performance of sycamore maple saplings
作者: Ruckli R. ; Rusterholz H.-P. ; Baur B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 318 起始页码: 285
结束页码: 293
语种: 英语
英文关键词: Acer pseudoplatanus
; Disturbance
; Forest ecosystem
; Impatiens glandulifera
; Plant-soil feedback
; Survival
英文摘要: Invasive plants can disrupt associations between soil organisms and native trees which may result in altered ecosystem functions, both reduced biodiversity and timber production. We examined the effect of the invasive annual plant Impatiens glandulifera on the arbuscular mycorrhiza (AM) symbiosis and performance of Acer pseudoplatanus saplings at three different levels of disturbance in a controlled field experiment in a deciduous forest in Switzerland. A total of 1125 one-year-old A. pseudoplatanus saplings were planted either in plots invaded by I. glandulifera, in plots from which the invasive plant had been manually removed or in plots which were not yet colonised by the invasive plant. The 45 (3. ×. 15) plots were equally distributed over three forest areas which were differently affected by a wind throw 12. years prior to the experiment. Saplings including their full root systems were harvested after 3, 6 and 15. months. I. glandulifera reduced AM colonisation on A. pseudoplatanus saplings by 30-43%. Reduction in AM colonisation did not differ between harvesting time and was not affected by the level of forest disturbance. Saplings growing in invaded plots also showed a reduced root biomass and survival rate compared to saplings in the other plots. Increases in soil moisture, soil pH, available phosphorus and microbial activity found in plots invaded by I. glandulifera did not affect AM colonisation and performance of saplings. Our findings demonstrate that the spread of the invasive I. glandulifera in mixed deciduous forests negatively affects the symbiotic association between AM fungi and A. pseudoplatanus saplings and thus forest regeneration. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66064
Appears in Collections: 影响、适应和脆弱性
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作者单位: Section of Conservation Biology, Department of Environmental Sciences, University of Basel, St. Johanns-Vorstadt 10, CH-4056 Basel, Switzerland
Recommended Citation:
Ruckli R.,Rusterholz H.-P.,Baur B.. Invasion of an annual exotic plant into deciduous forests suppresses arbuscular mycorrhiza symbiosis and reduces performance of sycamore maple saplings[J]. Forest Ecology and Management,2014-01-01,318