Interactions of the indigenous evergreen shrub Sabina vulgaris with coexisting species in the Mu Us sandland
文献类型：期刊论文
| 作者 | Ning, Lei3; Liu, Chun-Xiang; He, Wei-Ming; Yu, Fei-Hai |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 2013 |
| 卷号 | 6期号:1页码:48-56 |
| 关键词 | competition facilitation facilitative effects island of fertility plant-plant interactions resource islands semi-arid land |
| ISSN号 | 1752-9921 |
| DOI | 10.1093/jpe/rts019 |
| 文献子类 | Article |
| 英文摘要 | Facilitation is widespread in plant communities and particularly common in highly stressful environments. In the semi-arid Mu Us sandland where soil water and nutrients are short and grazing is heavy, many species grow within the large patches formed by the dense individuals of the unpalatable clonal shrub Sabina vulgaris, the only natural evergreen shrub species in the Mu Us sandland. However, the interactions between S. vulgaris and these coexisting species remain unclear, and we hypothesize that S. vulgaris can facilitate at least some species because within the patches vegetation is not grazed and soil water and nutrients may also be higher. We measured the maximum height, coverage and number of individuals of each vascular species, little cover and thickness of biological crust at the soil surface in 1 m 1 m plots in three types of microsites associated with 40 patches of S. vulgaris: (i) at the center, (ii) at the inner edge and (iii) outside the patches. We also took soil samples and measured soil water content and content of total N, P, K and organic matter. Soil water, nitrogen, organic matter and litter cover were the highest at the patch center, lowest outside the patches and intermediate at the inner edge of the patches, whereas thickness of biological crust was greater outside than at the center or at the inner edge. Among the 32 species recorded, six species preferred to occur within the patches, suggesting that S. vulgaris can facilitate these species most likely by grazing exclusion, increasing water and/or nitrogen resources in soil. However, most (19) species did not show preference and seven preferred outside. Also, species richness, pooled cover and number of individuals of all species were greater outside than within the patches, and such effects did not vary with the size of the S. vulgaris patches. These results suggest that the dominant interactions between S. vulgaris and the coexisting species are competition. The findings add to our knowledge that facilitation can be shown even when the competitive effects from the potential nurse plants are very strong. |
| 学科主题 | Plant Sciences ; Ecology ; Forestry |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1752-993X |
| WOS关键词 | STRESS-GRADIENT HYPOTHESIS ; ABIOTIC STRESS ; POSITIVE INTERACTIONS ; PLANT INTERACTIONS ; FACILITATION ; COMPETITION ; DESERT ; INSIGHTS ; WATER ; DIVERSITY |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000314709400006 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Science Foundation of China(National Natural Science Foundation of China (NSFC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27990]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 2.Beijing Forestry Univ, Coll Nat Conservat, Beijing 100083, Peoples R China 3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Lei,Liu, Chun-Xiang,He, Wei-Ming,et al. Interactions of the indigenous evergreen shrub Sabina vulgaris with coexisting species in the Mu Us sandland[J]. JOURNAL OF PLANT ECOLOGY,2013,6(1):48-56. |
| APA | Ning, Lei,Liu, Chun-Xiang,He, Wei-Ming,&Yu, Fei-Hai.(2013).Interactions of the indigenous evergreen shrub Sabina vulgaris with coexisting species in the Mu Us sandland.JOURNAL OF PLANT ECOLOGY,6(1),48-56. |
| MLA | Ning, Lei,et al."Interactions of the indigenous evergreen shrub Sabina vulgaris with coexisting species in the Mu Us sandland".JOURNAL OF PLANT ECOLOGY 6.1(2013):48-56. |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。