中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地球化学研究所
  3. 中国科学院地球化学研究所
  4. 环境地球化学国家重点实验室
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 Hu;  Yan‐Bao Lei;  Yun‐Hong Tan;  Xin‐Chao Sun;  Hao Xu;  Cong‐Qiang Liu;  Xue‐Yan Liu
刊名Journal of Ecology
出版日期2019
卷号107期号:1页码:372-386
关键词Ammonium Preference biodiversity ecological Stoichiometry exotic Plant invasion phosphorus Plant Coexistence soil Nitrogen Availability stable Nitrogen Isotope
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.gyig.ac.cn/handle/42920512-1/10933]  
专题地球化学研究所_环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, China
2.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
3.Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Xishuangbanna 666303, China
4.Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
推荐引用方式
GB/T 7714		 Chao‐Chen Hu；Yan‐Bao Lei；Yun‐Hong Tan；Xin‐Chao Sun；Hao Xu；Cong‐Qiang Liu；Xue‐Yan Liu. Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China[J]. Journal of Ecology,2019,107(1):372-386.
APA Chao‐Chen Hu；Yan‐Bao Lei；Yun‐Hong Tan；Xin‐Chao Sun；Hao Xu；Cong‐Qiang Liu；Xue‐Yan Liu.(2019).Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China.Journal of Ecology,107(1),372-386.
MLA Chao‐Chen Hu；Yan‐Bao Lei；Yun‐Hong Tan；Xin‐Chao Sun；Hao Xu；Cong‐Qiang Liu；Xue‐Yan Liu."Plant nitrogen and phosphorus utilization under invasive pressure in a montane ecosystem of tropical China".Journal of Ecology 107.1(2019):372-386.

入库方式： OAI收割

来源：地球化学研究所

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。