The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates
文献类型：期刊论文
| 作者 | Cui, Xiaoqing1,2; Yue, Ping3,4; Wu, Wenchao3,5; Gong, Yanming3; Li, Kaihui3; Misselbrook, Tom6; Goulding, Keith7; Liu, Xuejun1 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2019-03-26 |
| 卷号 | 10页码:11 |
| 关键词 | desert plants annual ephemeral N-15 tracer biomass N-15 retention N deposition |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2019.00356 |
| 通讯作者 | Liu, Xuejun(liu310@cau.edu.cn) |
| 英文摘要 | Nitrogen (N) partitioning between plant and soil pools is closely related to biomass accumulation and allocation, and is of great importance for quantifying the biomass dynamics and N fluxes of ecosystems, especially in low N-availability desert ecosystems. However, partitioning can differ among species even when growing in the same habitat. To better understand the variation of plant biomass allocation and N retention within ephemeral and annual species we studied the responses of Malcolmia Africana (an ephemeral) and Salsola affinis (an annual) to N addition, including plant growth, N retention by the plant and soil, and N lost to the environment using N-15 (double-labeled (NH4)-N-15 (NO3)-N-15 (5.16% abundance) added at 0, 0.8, 1.6, 3.2, and 6.4 g pot(-1), equivalent to 0, 15, 30, 60, and 120 kg N ha(-1)) in a pot experiment. Higher N addition (N120) inhibited plant growth and biomass accumulation of the ephemeral but not the annual. In addition, the aboveground: belowground partitioning of N (the R:S ratio) of the ephemeral decreased with increasing N addition, but that of the annual increased. The N input corresponding to maximum biomass and N-15 retention of the ephemeral was significantly less than that of the annual. The aboveground and belowground retention of N in the ephemeral were significantly less than those of the annual, except at low N rates. The average plant-soil system recovery of added N-15 by the ephemeral was 70%, significantly higher than that of the annual with an average of 50%. Although the whole plant-soil N-15 recovery of this desert ecosystem decreased with increasing N deposition, our results suggested that it may vary with species composition and community change under future climate and elevated N deposition. |
| 收录类别 | SCI |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; BIOMASS ALLOCATION ; SOIL MICROBES ; TERRESTRIAL ECOSYSTEMS ; GURBANTUNGGUT DESERT ; WATER ; RESPONSES ; FORMS ; EPHEMERALS ; STRATEGIES |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000462478200001 |
| 出版者 | FRONTIERS MEDIA SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555527 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Liu, Xuejun |
| 作者单位 | 1.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Key Lab Plant Soil Interact,Minist Educ, Beijing, Peoples R China 2.Peking Univ, Sino France Inst Earth Syst Sci, Lab Earth Surface Proc, Coll Urban & Environm Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China 4.Chinese Acad Sci, Northwest Inst Eco Environm & Resources, Urat Desert Grassland Res Stn, Lanzhou, Gansu, Peoples R China 5.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China 6.Rothamsted Res, Dept Sustainable Soils & Grassland Syst, North Wyke, Devon, England 7.Rothamsted Res, Dept Sustainable Soils & Grassland Syst, Harpenden, Herts, England |
| 推荐引用方式 GB/T 7714 | Cui, Xiaoqing,Yue, Ping,Wu, Wenchao,et al. The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates[J]. FRONTIERS IN PLANT SCIENCE,2019,10:11. |
| APA | Cui, Xiaoqing.,Yue, Ping.,Wu, Wenchao.,Gong, Yanming.,Li, Kaihui.,...&Liu, Xuejun.(2019).The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates.FRONTIERS IN PLANT SCIENCE,10,11. |
| MLA | Cui, Xiaoqing,et al."The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates".FRONTIERS IN PLANT SCIENCE 10(2019):11. |
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来源：寒区旱区环境与工程研究所
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