Testing relationship between plant productivity and diversity in a desertified steppe in Northwest China
文献类型：期刊论文
| 作者 | Yang, Yang1,2,3; Liu, Bingru1 |
| 刊名 | PEERJ
 |
| 出版日期 | 2019-07-10 |
| 卷号 | 7页码:19 |
| 关键词 | Desertified steppe Plant communities Diversity Productivity Relationship |
| ISSN号 | 2167-8359 |
| DOI | 10.7717/peerj.7239 |
| 通讯作者 | Liu, Bingru(bingru.liu@163.com) |
| 英文摘要 | The rapid global plant diversity and productivity loss has resulted in ecosystem functional degeneration in recent decades, and the relationship between plant diversity and productivity is a pressing issue around the world. Here, we sampled six plant communities that have not been grazed for 20 years, i.e., Agropyron mongolicum, Stipa bungeana, Cynanchum komarovii, Glycyrrhiza uralensis, Sophora alopecuroides, Artemisia ordosica, located in a desertified steppe, northwestern China, and tested the relationship between plant diversity and productivity in this region. We found a positive linear relationship between AGB (above-ground biomass) and BGB (below-ground biomass), and the curves between plant diversity and AGB were unimodal (R-2 = 0.4572, p < 0.05), indicating that plant productivity increased at a low level of diversity but decreased at a high level of diversity. However, there was no significant relationship between BGB and plant diversity (p > 0.05). Further, RDA (redundancy analysis) indicated that soil factors had a strong effect on plant diversity and productivity. Totally, GAMs (generalized additive models) showed that soil factors (especially total nitrogen TN, total carbon TC, soil microbial biomass nitrogen SMB-N, soil microbial biomass carbon SMB-C) explained more variation in plant diversity and productivity (78.24%), which can be regarded as the key factors driving plant diversity and productivity. Therefore, strategies aiming to increase plant productivity and protect plant diversity may concentrate on promoting soil factors (e.g., increasing TC, TN, SMB-N and SMB-C) and plant species, which can be regarded as an effective and simple strategy to stabilize ecosystems to mitigate aridity in desertified steppes in northwestern China. |
| WOS关键词 | BELOW-GROUND BIOMASS ; INNER-MONGOLIA ; TERRESTRIAL ECOSYSTEMS ; ALPINE GRASSLANDS ; SPECIES-DIVERSITY ; BIODIVERSITY LOSS ; SOIL ; STABILITY ; COMMUNITY ; STOICHIOMETRY |
| 资助项目 | National Natural Science Foundation of China[31660168] ; First Class Discipline Construction Project in Colleges and Universities of Ningxia Hui Autonomous Region[NXYLXK2017B06] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000474703300003 |
| 出版者 | PEERJ INC |
| 资助机构 | National Natural Science Foundation of China ; First Class Discipline Construction Project in Colleges and Universities of Ningxia Hui Autonomous Region |
| 源URL | [http://ir.ieecas.cn/handle/361006/13748]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） 第四纪科学与全球变化卓越创新中心 |
| 通讯作者 | Liu, Bingru |
| 作者单位 | 1.Ningxia Univ, Minist Educ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Yinchuan, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yang,Liu, Bingru. Testing relationship between plant productivity and diversity in a desertified steppe in Northwest China[J]. PEERJ,2019,7:19. |
| APA | Yang, Yang,&Liu, Bingru.(2019).Testing relationship between plant productivity and diversity in a desertified steppe in Northwest China.PEERJ,7,19. |
| MLA | Yang, Yang,et al."Testing relationship between plant productivity and diversity in a desertified steppe in Northwest China".PEERJ 7(2019):19. |
入库方式： OAI收割
来源：地球环境研究所
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