Intra-annual species gain overrides species loss in determining species richness in a typical steppe ecosystem after a decade of nitrogen enrichment
文献类型：期刊论文
| 作者 | Zhao, Ming2; Zhang, Hongxiang3; Baskin, Carol C.; Wei, Cunzheng; Yang, Junjie; Zhang, Yunhai; Jiang, Yong1; Jiang, Lin6; Han, Xingguo2 |
| 刊名 | JOURNAL OF ECOLOGY
 |
| 出版日期 | 2022 |
| 卷号 | 110期号:8页码:1942-1956 |
| ISSN号 | 0022-0477 |
| 关键词 | biodiversity community dynamics determinants of plant community diversity nitrogen addition frequency nitrogen deposition plant density soil acidification species turnover |
| DOI | 10.1111/1365-2745.13928 |
| 文献子类 | Article |
| 英文摘要 | Increasing deposition of atmospheric nitrogen (N) due to accelerated human activities is a threat to various ecosystems. However, there is a lack of long-term experimental evidence demonstrating the seasonal dynamics of plant species turnover that ultimately determines species richness in natural ecosystems under N enrichment. Moreover, the frequency of N addition also may affect species turnover in a community, but it is rarely studied. To assess the responses of a plant community to N addition, we manipulated the amounts (0-50 g N m(-2) year(-1)) and frequency (2 vs. 12 times year(-1)) of N addition in an Inner Mongolian typical steppe ecosystem in northern China for 12 consecutive years (2008-2020). We measured species richness and density of plant in the growing seasons (May-September) from 2018 to 2020, starting 10 years after the initial N addition treatment. Both species gain and species loss decreased with increasing amounts of N addition, resulting in a lower plant species turnover rate and greater similarity in the community between two adjacent months throughout the growing season. Species loss and species gain increased modestly under high N addition frequency. Species gain was more important than species loss in determining species richness after a decade of N application. In addition, plant density increased at high N amounts, mainly driven by enhanced clonal growth of the dominant species, Leymus chinensis. Synthesis. Together, these results suggest that high levels of N deposition may suppress species richness due to aggravated soil chemical properties and may favour growth of a limited number of N-tolerant species compared to systems that experience low levels of N deposition. To conserve biodivewwrsity and to facilitate restoration of degraded grassland ecosystems exposed to long-term N deposition, amelioration of the acidified soils induced by N deposition may be an important strategy to use. |
| 学科主题 | Plant Sciences ; Ecology |
| 电子版国际标准刊号 | 1365-2745 |
| 出版地 | HOBOKEN |
| WOS关键词 | NUTRIENT ENRICHMENT ; BIODIVERSITY LOSS ; PLANT DIVERSITY ; GRASSLAND ; ESTABLISHMENT ; SUCCESSION ; DEPOSITION ; GERMINATION ; RECRUITMENT ; COMPETITION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000806090600001 |
| 资助机构 | National Science Foundation of China [42130515] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28536]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Baskin, Carol C.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun, Peoples R China 5.Baskin, Carol C.] Univ Kentucky, Dept Biol, Lexington, KY USA 6.Hebei Univ, Sch Life Sci, Baoding, Peoples R China 7.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA |
| 推荐引用方式 GB/T 7714 | Zhao, Ming,Zhang, Hongxiang,Baskin, Carol C.,et al. Intra-annual species gain overrides species loss in determining species richness in a typical steppe ecosystem after a decade of nitrogen enrichment[J]. JOURNAL OF ECOLOGY,2022,110(8):1942-1956. |
| APA | Zhao, Ming.,Zhang, Hongxiang.,Baskin, Carol C..,Wei, Cunzheng.,Yang, Junjie.,...&Han, Xingguo.(2022).Intra-annual species gain overrides species loss in determining species richness in a typical steppe ecosystem after a decade of nitrogen enrichment.JOURNAL OF ECOLOGY,110(8),1942-1956. |
| MLA | Zhao, Ming,et al."Intra-annual species gain overrides species loss in determining species richness in a typical steppe ecosystem after a decade of nitrogen enrichment".JOURNAL OF ECOLOGY 110.8(2022):1942-1956. |
入库方式： OAI收割
来源：植物研究所
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