Changes in above and belowground traits of a rhizome clonal plant explain its predominance under nitrogen addition
文献类型：期刊论文
| 作者 | Zheng, Zhi; Ma, Pengfei1 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2018 |
| 卷号 | 432期号:1-2页码:415-424 |
| 关键词 | Nitrogen addition Leymus chinensis Plant traits Inner mongolian steppe |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-018-3815-2 |
| 文献子类 | Article |
| 英文摘要 | Background and aimsDespite extensive studies documenting that changes in plant community structure in response to enhanced atmospheric nitrogen (N) deposition were driven by positive effects of N enrichment on rhizome clonal plants in grassland communities, few studies have specifically investigated the responses of rhizome clonal plants to N enrichment in terms of above-and below-ground plant traits.MethodsBy monitoring above-ground and below-ground plant traits, we investigated long-term (13-year) effects of N addition (64gm(-2)yr.(-1)) on Leymus chinensis, a rhizome clonal plant, in temperate steppes of northern China.ResultsNitrogen addition enhanced the relative above-ground biomass of L. chinensis from 0.6% (2004) to 75% (2016) in steppe communities. Nitrogen addition enhanced leaf N and chlorophyll concentrations, and specific leaf area, thus leading to a marked increase in photosynthetic rates. Nitrogen addition altered the patterns of carbon allocation, by enhancing the ratios of below-ground to above-ground biomass, while N addition reduced the ratios of rhizome to root biomass. Nitrogen addition modified morphological traits of absorptive fine roots (first two-order roots) by enhancing specific root length and reducing root tissue density and average root diameter. Nitrogen addition significantly shortened rhizome internodes and increased bud density of L. chinensis.ConclusionNitrogen addition enhanced L. chinensis resource-acquiring and vegetative reproduction capability, thereby leading to its predominance in the steppe communities. |
| 学科主题 | Agronomy ; Plant Sciences ; Soil Science |
| 出版地 | DORDRECHT |
| 电子版国际标准刊号 | 1573-5036 |
| WOS关键词 | RELATIVE GROWTH-RATE ; ECONOMICS SPECTRUM ; COMMUNITY RESPONSES ; PRECIPITATION GRADIENT ; NUTRIENT ENRICHMENT ; ECOSYSTEM PROCESSES ; FUNCTIONAL TRAITS ; GLOBAL ASSESSMENT ; BIODIVERSITY LOSS ; SPECIES RICHNESS |
| 语种 | 英语 |
| WOS记录号 | WOS:000447871600028 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470466] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20531]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Tibetan Med Res, Xining 810008, Qinghai, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 10093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Zhi,Ma, Pengfei. Changes in above and belowground traits of a rhizome clonal plant explain its predominance under nitrogen addition[J]. PLANT AND SOIL,2018,432(1-2):415-424. |
| APA | Zheng, Zhi,&Ma, Pengfei.(2018).Changes in above and belowground traits of a rhizome clonal plant explain its predominance under nitrogen addition.PLANT AND SOIL,432(1-2),415-424. |
| MLA | Zheng, Zhi,et al."Changes in above and belowground traits of a rhizome clonal plant explain its predominance under nitrogen addition".PLANT AND SOIL 432.1-2(2018):415-424. |
入库方式： OAI收割
来源：植物研究所
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