Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland
文献类型：期刊论文
| 作者 | Diao, Huajie1,4; Kardol, Paul3; Dong, Kuanhu4; Wang, Changhui1,4 |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 14期号:3页码:515-526 |
| 关键词 | mowing nitrogen addition nitrogen-use efficiency semi-arid grassland water-use efficiency |
| ISSN号 | 1752-9921 |
| DOI | 10.1093/jpe/rtab006 |
| 文献子类 | Article |
| 英文摘要 | Aims Competition among plants in a community usually depends on their nitrogen (N)-use efficiency (NUE) and water-use efficiency (WUE) in arid and semi-arid regions. Artemisia frigida is an indicator species in heavily degraded grassland, however, how its NUE and WUE respond to N addition in different successional stages is still unclear, especially with mowing, a common management practice in semi-arid grasslands. Methods Based on a long-term controlled experiment with N addition and mowing in an abandoned cropland from 2006 to 2013, we investigated the NUE and WUE of A. frigida in two patches (i.e. grass and herb patches) in 2013 which represented two potential successional stages from herb to grass communities. The coverage of A. frigida was higher (about 50%) in the herb patch than in the grass patch (about 10%). Stable isotopic C (delta C-13) and N (delta N-15) as well as C and N pools were measured in plants and soils. NUE was calculated as leaf C/N, and leaf delta C-13 values were used as a proxy for WUE. Important Findings N addition did not affect WUE of A. frigida, but significantly decreased NUE by 42.9% and 26.6% in grass and herb patches, respectively. The response of NUE to N addition was related to altering utilization of different N sources (NH4+ vs. NO3-) by A. frigida according to the changed relationship between leaf delta N-15/soil delta N-15 and NUE. Mowing had no effect on NUE regardless of N addition, but significantly increased WUE by 2.3% for A. frigida without N addition in the grass patch. The addition of N reduced the positive effect of mowing on its WUE in grass patch. Our results suggested that decreased NUE and/or WUE of A. frigida under mowing and N addition could reduce its competition, and further accelerate restoration succession from the abandoned cropland to natural grassland in the semi-arid region. |
| 学科主题 | Plant Sciences ; Ecology ; Forestry |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1752-993X |
| WOS关键词 | CARBON-ISOTOPE COMPOSITION ; N-15 NATURAL-ABUNDANCE ; PLANT NITROGEN ; SEMIARID GRASSLAND ; LEAF CARBON ; SOIL ; RESPONSES ; PATTERNS ; STOICHIOMETRY ; DELTA-N-15 |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000648966700013 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China [31770526, 31872406] ; Chinese National Key Development Program for Basic Research [2016YFC0500703] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26462]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Peoples R China 2.Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden 3.Shanxi Agr Univ, Youyu Loess Plateau Grassland Ecosyst Res Stn, Taigu 030801, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Diao, Huajie,Kardol, Paul,Dong, Kuanhu,et al. Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland[J]. JOURNAL OF PLANT ECOLOGY,2021,14(3):515-526. |
| APA | Diao, Huajie,Kardol, Paul,Dong, Kuanhu,&Wang, Changhui.(2021).Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland.JOURNAL OF PLANT ECOLOGY,14(3),515-526. |
| MLA | Diao, Huajie,et al."Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland".JOURNAL OF PLANT ECOLOGY 14.3(2021):515-526. |
入库方式： OAI收割
来源：植物研究所
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