Soil heterogeneity affects ramet placement of Hydrocotyle vulgaris
文献类型：期刊论文
| 作者 | Dong, Bi-Cheng; Wang, Jiu-Zhong; Liu, Rui-Hua; Zhang, Ming-Xiang; Luo, Fang-Li; Yu, Fei-Hai |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 2015-02 |
| 卷号 | 8期号:1页码:91-100 |
| 关键词 | clonal plant competition environmental heterogeneity foraging response patch size physiological integration |
| 英文摘要 | Aims Soil heterogeneity is common in natural habitats. It may trigger foraging responses (placing more ramets and/or roots in nutrient-rich patches than in nutrient-poor patches) and further affect the growth of plants. However, the impact of soil heterogeneity on competitive interactions has been little tested. Methods We conducted a greenhouse experiment to investigate the effects of soil heterogeneity on intraspecific competition with a stoloniferous herb Hydrocotyle vulgaris. We grew one (without competition) or nine ramets (with competition) of H. vulgaris under a homogeneous environment and two heterogeneous environments differing in patch size (large or small patches). In the heterogeneous treatment, the soil consisted of the same number of nutrient-rich and nutrient-poor patches arranged in a chessboard manner, and in the homogeneous treatment, the soil was an even mixture of the same amount of the nutrient-rich and the nutrientpoor soil. Important Findings Irrespective of intraspecific competition, H. vulgaris showed foraging responses to soil heterogeneity in the large patch treatment, e.g. it produced significantly more biomass, ramets, aboveground mass and root mass in the nutrient-rich patches than in the nutrientpoor patches. In the small patch treatment, foraging responses were observed when intraspecific competition was present, but responses were not observed when there was no competition. However, we find a significant effect of soil heterogeneity on neither overall growth nor competitive intensity of H. vulgaris. Our results suggest that foraging responses to soil heterogeneity may not necessarily be adaptive and intraspecific competition may not be influenced by soil heterogeneity. |
| 研究领域[WOS] | Plant Sciences ; Ecology |
| WOS记录号 | WOS:000350242200010 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32664]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Dong, Bi-Cheng,Wang, Jiu-Zhong,Liu, Rui-Hua,et al. Soil heterogeneity affects ramet placement of Hydrocotyle vulgaris[J]. JOURNAL OF PLANT ECOLOGY,2015,8(1):91-100. |
| APA | Dong, Bi-Cheng,Wang, Jiu-Zhong,Liu, Rui-Hua,Zhang, Ming-Xiang,Luo, Fang-Li,&Yu, Fei-Hai.(2015).Soil heterogeneity affects ramet placement of Hydrocotyle vulgaris.JOURNAL OF PLANT ECOLOGY,8(1),91-100. |
| MLA | Dong, Bi-Cheng,et al."Soil heterogeneity affects ramet placement of Hydrocotyle vulgaris".JOURNAL OF PLANT ECOLOGY 8.1(2015):91-100. |
入库方式： OAI收割
来源：生态环境研究中心
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