Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China
文献类型：期刊论文
| 作者 | Chao-Chen Hu1; Yan-Bao Lei2,3; Yun-Hong Tan3; Xin-Chao Sun1; Hao Xu1; Cong-Qiang Liu1,4; Xue-Yan Liu1,4; Lei, Yan-Bao ; Lei, Yan-Bao
|
| 刊名 | Journal of Ecology
 |
| 出版日期 | 2018-05-09 |
| 页码 | DOI: 10.1111/1365-2745.13008 |
| 关键词 | ammonium preference biodiversity ecological stoichiometry exotic plant invasion phosphorus, plant coexistence, soil nitrogen availability, stable nitrogen isotope |
| ISSN号 | 0022-0477 |
| DOI | 10.1111/1365-2745.13008 |
| 产权排序 | 1 |
| 文献子类 | RESEARCH ARTICLE |
| 英文摘要 | 1. Exotic plant invasion has been changing the vegetation composition and function of terrestrial ecosystems. Nitrogen (N) and phosphorus (P) are often the limiting nutrients for terrestrial plants. However, under invasive pressure, in situ plant N and P usage mechanisms remain poorly understood but are pivotal for a better understanding of plant invasion and coexistence in invaded ecosystems. 2. Nitrogen and P concentrations, natural 15N abundance (δ15N values) were investigated in leaves and soils under different invasive pressures (here expressed as the biomass percentages of invasive plants in each plot) for two invasive species (Chromolaena odorata and Ageratina adenophora) in Xishuangbanna in tropical China. 3. Soil N and P concentrations revealed the relatively N -rich but P-poor status of our study site. Under invasion, soil inorganic N (dominated by ammonium) and available P did not increase significantly. The leaf N and P of invasive plants increased, while leaf N increased but P decreased for native species. Natural δ15N mass balance between leaves and soil inorganic N sources revealed that ammonium dominated N utilization in both natives and invaders. Invasive plants showed ammonium utilization with increasing leaf N levels, while native plants under no invasion showed nitrate utilization with increasing leaf N levels. 4. Synthesis. Increased soil ammonium availability contributed to preferential ammonium utilization by invasive plants and elevated ammonium utilization in natives, but the P competition of natives decreased in invaded ecosystems. These novel insights into nutrient dynamics in invaded ecosystems enhance our understanding of plant invasion and coexistence mechanisms. |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/24296]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Xue-Yan Liu |
| 作者单位 | 1.Institute of Surface-Earth System Science, Tianjin University, Tianjin, China; 2.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 3.Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303 , China; 4.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China |
| 推荐引用方式 GB/T 7714 | Chao-Chen Hu,Yan-Bao Lei,Yun-Hong Tan,et al. Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China[J]. Journal of Ecology,2018:DOI: 10.1111/1365-2745.13008. |
| APA | Chao-Chen Hu.,Yan-Bao Lei.,Yun-Hong Tan.,Xin-Chao Sun.,Hao Xu.,...&Lei, Yan-Bao.(2018).Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China.Journal of Ecology,DOI: 10.1111/1365-2745.13008. |
| MLA | Chao-Chen Hu,et al."Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China".Journal of Ecology (2018):DOI: 10.1111/1365-2745.13008. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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