Effects of Trampling on Morphological and Mechanical Traits of Dryland Shrub Species Do Not Depend on Water Availability
文献类型：期刊论文
| 作者 | Xu, Liang4; Freitas, Sofia M. A.; Yu, Fei-Hai; Dong, Ming4; Anten, Niels P. R.; Werger, Marinus J. A. |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2013 |
| 卷号 | 8期号:1 |
| ISSN号 | 1932-6203 |
| DOI | 10.1371/journal.pone.0053021 |
| 文献子类 | Article |
| 英文摘要 | In semiarid drylands water shortage and trampling by large herbivores are two factors limiting plant growth and distribution. Trampling can strongly affect plant performance, but little is known about responses of morphological and mechanical traits of woody plants to trampling and their possible interaction with water availability. Seedlings of four shrubs (Caragana intermedia, Cynanchum komarovi, Hedysarum laeve and Hippophae rhamnoides) common in the semiarid Mu Us Sandland were grown at 4% and 10% soil water content and exposed to either simulated trampling or not. Growth, morphological and mechanical traits were measured. Trampling decreased vertical height and increased basal diameter and stem resistance to bending and rupture (as indicated by the increased minimum bend and break force) in all species. Increasing water availability increased biomass, stem length, basal diameter, leaf thickness and rigidity of stems in all species except C. komarovii. However, there were no interactive effects of trampling and water content on any of these traits among species except for minimum bend force and the ratio between stem resistance to rupture and bending. Overall shrub species have a high degree of trampling resistance by morphological and mechanical modifications, and the effects of trampling do not depend on water availability. However, the increasing water availability can also affect trade-off between stem strength and flexibility caused by trampling, which differs among species. Water plays an important role not only in growth but also in trampling adaptation in drylands. |
| 学科主题 | Multidisciplinary Sciences |
| 出版地 | SAN FRANCISCO |
| WOS关键词 | BEAN-PLANTS ; GROWTH ; VEGETATION ; STRESS ; RESISTANCE ; THIGMOMORPHOGENESIS ; HETEROGENEITY ; AVOIDANCE ; TOLERANCE ; DIVERSITY |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | PUBLIC LIBRARY SCIENCE |
| WOS记录号 | WOS:000313682700018 |
| 资助机构 | NSFC(National Natural Science Foundation of China (NSFC)) ; Hangzhou Normal University ; KNAW grant |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27838]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Xu, Liang; Freitas, Sofia M. A.; Anten, Niels P. R.; Werger, Marinus J. A.] Univ Utrecht, Inst Environm Biol, Utrecht, Netherlands 2.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou, Zhejiang, Peoples R China 3.Beijing Forestry Univ, Coll Nat Conservat, Beijing, Peoples R China 4.Anten, Niels P. R.] Wageningen Univ, Ctr Crop Syst Anal, NL-6700 AP Wageningen, Netherlands 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Liang,Freitas, Sofia M. A.,Yu, Fei-Hai,et al. Effects of Trampling on Morphological and Mechanical Traits of Dryland Shrub Species Do Not Depend on Water Availability[J]. PLOS ONE,2013,8(1). |
| APA | Xu, Liang,Freitas, Sofia M. A.,Yu, Fei-Hai,Dong, Ming,Anten, Niels P. R.,&Werger, Marinus J. A..(2013).Effects of Trampling on Morphological and Mechanical Traits of Dryland Shrub Species Do Not Depend on Water Availability.PLOS ONE,8(1). |
| MLA | Xu, Liang,et al."Effects of Trampling on Morphological and Mechanical Traits of Dryland Shrub Species Do Not Depend on Water Availability".PLOS ONE 8.1(2013). |
入库方式： OAI收割
来源：植物研究所
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