Increased rainfall and nitrogen alter colonization and extinction during postgrazing steppe succession
文献类型：期刊论文
| 作者 | Yu, Hong-Wei; He, Wei-Ming |
| 刊名 | JOURNAL OF VEGETATION SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 30期号:1页码:75-85 |
| 关键词 | nitrogen deposition postgrazing steppe succession rainfall amount species gain species loss species richness species turnover |
| ISSN号 | 1100-9233 |
| DOI | 10.1111/jvs.12698 |
| 文献子类 | Article |
| 英文摘要 | Question Steppes may be sensitive to rainfall and nitrogen (N) pulses; however, their potential effects on local colonization and extinction during postgrazing steppe succession have not been thoroughly elucidated to date. We addressed how increased rainfall and N influenced plant species richness, gain, loss, and turnover in an ungrazed steppe. Location Northeastern Inner Mongolia, China. Methods We performed a five-growing-season field experiment, in which an ungrazed steppe was subject to nine different combinations of rainfall and N. The three rainfall levels were ambient amount of rainfall, a 14% increase in amount of rainfall, and a 28% increase in amount of rainfall; the three N levels were no N addition, an addition of 5 g N m(-2) year(-1), and an addition of 10 g N m(-2) year(-1). We determined successional changes at the taxonomic and functional levels by surveying plant species in the first and fifth growing seasons. Results (a) Increased rainfall and N addition did not affect plant species richness but did influence plant species loss, gain, and turnover. (b) At the taxonomic level, species loss, gain, and turnover decreased monotonically with increasing rainfall; N addition decreased species loss and turnover but did not influence species gain; the slope of the species loss-gain relation was approximately 1.0. (c) At the plant functional group level, increased rainfall favored C-3 plants by sustaining species gain and decreasing species loss; N addition favored C-4 plants by increasing the species gain and decreasing the species loss. Conclusion Increased rainfall and simulated N deposition could induce rapid colonization and extinction during postgrazing steppe succession, but maintain plant diversity homeostasis by equally affecting species colonization and extinction. Future rainfall enrichment and N deposition might strongly influence the relative abundance of different plant functional groups, thereby affecting successional changes under global change. |
| 学科主题 | Plant Sciences ; Ecology ; Forestry |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1654-1103 |
| WOS关键词 | STRESS-GRADIENT HYPOTHESIS ; PLANT COMMUNITY RESPONSES ; SPECIES RICHNESS ; ECOSYSTEM RESPONSES ; TEMPORAL VARIATION ; SOIL-MOISTURE ; GRASSLAND ; WATER ; PRECIPITATION ; DIVERSITY |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000459812100008 |
| 出版者 | WILEY |
| 资助机构 | Ministry of Science and Technology of the People's Republic of ChinaMinistry of Science and Technology, China [2017YFC1200102] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570538] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19635]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.[Yu, Hong-Wei |
| 推荐引用方式 GB/T 7714 | Yu, Hong-Wei,He, Wei-Ming. Increased rainfall and nitrogen alter colonization and extinction during postgrazing steppe succession[J]. JOURNAL OF VEGETATION SCIENCE,2019,30(1):75-85. |
| APA | Yu, Hong-Wei,&He, Wei-Ming.(2019).Increased rainfall and nitrogen alter colonization and extinction during postgrazing steppe succession.JOURNAL OF VEGETATION SCIENCE,30(1),75-85. |
| MLA | Yu, Hong-Wei,et al."Increased rainfall and nitrogen alter colonization and extinction during postgrazing steppe succession".JOURNAL OF VEGETATION SCIENCE 30.1(2019):75-85. |
入库方式： OAI收割
来源：植物研究所
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