Knowledge Management System Of Institute Of Botany,CAS
| Increasing water availability and facilitation weaken biodiversity-biomass relationships in shrublands | |
| Guo, Yanpei1,2; Schob, Christian2,3; Ma, Wenhong4; Mohammat, Anwar5; Liu, Hongyan1; Yu, Shunli6; Jiang, Youxu1,7; Schmid, Bernhard2,8; Tang, Zhiyao1 | |
| 2019 | |
| 发表期刊 | ECOLOGY
 |
| ISSN | 0012-9658 |
| 卷号 | 100期号:3 |
| 摘要 | Positive biodiversity-ecosystem-functioning (BEF) relationships are commonly found in experimental and observational studies, but how they vary in different environmental contexts and under the influence of coexisting life forms is still controversial. Investigating these variations is important for making predictions regarding the dynamics of plant communities and carbon pools under global change. We conducted this study across 433 shrubland sites in northern China. We fitted structural equation models (SEMs) to analyze the variation in the species-richness-biomass relationships of shrubs and herbs along a wetness gradient and general liner models (GLMs) to analyze how shrub or herb biomass affected the species-richness-biomass relationship of the other life form. We found that the positive species-richness-biomass relationships for both shrubs and herbs became weaker or even negative with higher water availability, likely indicating stronger interspecific competition within life forms under more benign conditions. After accounting for variation in environmental contexts using residual regression, we found that the benign effect of greater facilitation by a larger shrub biomass reduced the positive species-richness-biomass relationships of herbs, causing them to become nonsignificant. Different levels of herb biomass, however, did not change the species-richness-biomass relationship of shrubs, possibly because greater herb biomass did not alter the stress level for shrubs. We conclude that biodiversity in the studied plant communities is particularly important for plant biomass production under arid conditions and that it might be possible to use shrubs as nurse plants to facilitate understory herb establishment in ecological restoration. |
| 关键词 | biodiversity-ecosystem functioning relationships biomass competition facilitation shrub density shrublands water availability |
| 学科领域 | Ecology |
| DOI | 10.1002/ecy.2624 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | DIVERSITY-PRODUCTIVITY RELATIONSHIPS ; TREE SPECIES-DIVERSITY ; POSITIVE INTERACTIONS ; PLANT INTERACTIONS ; ECOSYSTEM FUNCTION ; CARBON STORAGE ; COMPETITION ; NITROGEN ; STRESS ; GROWTH |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000460163500020 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1939-9170 |
| 资助机构 | National Key Research and Development Plan [2017YFA0605101] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31770489, 31621091] ; Chinese Academy of SciencesChinese Academy of Sciences [XDA05050300] ; Chinese Scholarship CouncilChina Scholarship Council [20160610292] ; University Research Priority Program Global Change and Biodiversity of the University of Zurich |
| 作者邮箱 | zytang@urban.pku.edu.cn |
| 作品OA属性 | hybrid, Green Accepted, Green Published |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/19594 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Peking Univ, Inst Ecol, Coll Urban & Environm Sci, Beijing, Peoples R China 2.Peking Univ, Key Lab Earth Surface Proc, Beijing, Peoples R China 3.Univ Zurich, Dept Evolutionary Biol & Environm Studies, Zurich, Switzerland 4.Swiss Fed Inst Technol, Swiss Fed Inst Technol, Dept Environm Syst Sci, Zurich, Switzerland 5.Inner Mongolia Univ, Sch Life Sci, Hohhot, Peoples R China 6.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China 7.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Changes, Beijing, Peoples R China 8.Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, State Forestry Adm, Key Lab Forest Ecol & Environm, Beijing, Peoples R China 9.Univ Zurich, Dept Geog, Zurich, Switzerland |
| 推荐引用方式 GB/T 7714 | Guo, Yanpei,Schob, Christian,Ma, Wenhong,et al. Increasing water availability and facilitation weaken biodiversity-biomass relationships in shrublands[J]. ECOLOGY,2019,100(3). |
| APA | Guo, Yanpei.,Schob, Christian.,Ma, Wenhong.,Mohammat, Anwar.,Liu, Hongyan.,...&Tang, Zhiyao.(2019).Increasing water availability and facilitation weaken biodiversity-biomass relationships in shrublands.ECOLOGY,100(3). |
| MLA | Guo, Yanpei,et al."Increasing water availability and facilitation weaken biodiversity-biomass relationships in shrublands".ECOLOGY 100.3(2019). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| ecy.2624.pdf（2144KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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