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| DOI | 10.1007/s11104-024-06517-w |
| Nitrogen addition reduces the positive effect of Ligularia virgaurea on seed germination of alpine species on the Tibetan Plateau | |
| Wang, Jiajia; Liu, Kun; Bonser, Stephen Patrick; Liu, Ziyang; Jiang, Xiaoxuan; Cui, Hanwen; Li, Zhong; Chen, Jingwei; Wang, Yajun; Song, Hongxian; Yang, Zi; An, Lizhe; Xiao, Sa; Chen, Shuyan | |
| 发表日期 | 2024 |
| ISSN | 0032-079X |
| EISSN | 1573-5036 |
| 英文摘要 | Background and aimsNitrogen (N) deposition and native allelopathic plants may affect seed germination and growth of species through their effects on soil microbes and soil nutrient availability. However, our understanding of the interactions between N addition and allelopathic plants on the regeneration of alpine grasslands remains limited. MethodsHere, we investigated the effects of N addition and the presence of the allelopathic plant Ligularia virgaurea (Maxim.) Mattf. on seed germination, survival, and growth of native herbaceous species (Elymus nutans, Delphinium kamaonense and Tibetia himalaica) on the Qinghai-Tibet Plateau. We used piecewise structural equation modelling to assess both the direct effects of N addition, allelopathic plants, and their interactions and indirect effects mediated by soil properties, soil microbial richness and diversity, and soil enzyme activity. ResultsWe found that (1) L. virgaurea directly increased seed germination and early plant survival, and reduced plant root-to-shoot ratio; N addition directly increased early plant survival and biomass, (2) L. virgaurea indirectly increased plant biomass via bacterial richness, (3) N addition offsets the increase in seed germination promoted by the presence of L. virgaurea via soil acid phosphatase. ConclusionOur study suggests the importance of direct and indirect roles of allelopathic plants, N addition and their interaction on seed germination, survival and plant growth. Our results highlight the need to consider the interactions between environmental and biological factors as well as their direct and indirect effects to obtain reliable predictions and mechanistic understanding of the response of alpine plants to future climate change. |
| 关键词 | Seed germinationSurvivalAllelopathyLigularia virgaureaNitrogen additionQinghai-Tibet Plateau |
| 英文关键词 | PLANT BIODIVERSITY; MICROBIAL BIOMASS; MEADOW ECOSYSTEM; SOIL MICROBES; DIVERSITY; PRODUCTIVITY; COMPETITION; IMPACTS; FACILITATION; COMMUNITIES |
| WOS研究方向 | Agronomy ; Plant Sciences ; Soil Science |
| WOS记录号 | WOS:001161140000003 |
| 来源期刊 | PLANT AND SOIL
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/283432 |
| 作者单位 | Lanzhou University; Lanzhou University; University of New South Wales Sydney |
| 推荐引用方式 GB/T 7714 | Wang, Jiajia,Liu, Kun,Bonser, Stephen Patrick,et al. Nitrogen addition reduces the positive effect of Ligularia virgaurea on seed germination of alpine species on the Tibetan Plateau[J],2024. |
| APA | Wang, Jiajia.,Liu, Kun.,Bonser, Stephen Patrick.,Liu, Ziyang.,Jiang, Xiaoxuan.,...&Chen, Shuyan.(2024).Nitrogen addition reduces the positive effect of Ligularia virgaurea on seed germination of alpine species on the Tibetan Plateau.PLANT AND SOIL. |
| MLA | Wang, Jiajia,et al."Nitrogen addition reduces the positive effect of Ligularia virgaurea on seed germination of alpine species on the Tibetan Plateau".PLANT AND SOIL (2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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