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| An integrated belowground trait-based understanding of nitrogen-driven plant diversity loss | |
Tian, Qiuying; Lu, Peng; Zhai, Xiufeng; Zhang, Ruifang2; Zheng, Yao; Wang, Hong2; Nie, Bao; Bai, Wenming ; Niu, Shuli3; Shi, Peili3; Yang, Yuanhe; Li, Kaihui4; Yang, Dianlin5; Stevens, Carly6; Lambers, Hans7,8,9; Zhang, Wen-Hao
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| 2022 | |
| 发表期刊 | GLOBAL CHANGE BIOLOGY
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| ISSN | 1354-1013 |
| 卷号 | 28期号:11页码:3651-3664 |
| 摘要 | Belowground plant traits play important roles in plant diversity loss driven by atmospheric nitrogen (N) deposition. However, the way N enrichment shapes plant microhabitats by patterning belowground traits and finally determines aboveground responses is poorly understood. Here, we investigated the rhizosheath trait of 74 plant species in seven N-addition simulation experiments across multiple grassland ecosystems in China. We found that rhizosheath formation differed among plant functional groups and contributed to changes in plant community composition induced by N enrichment. Compared with forb species, grass and sedge species exhibited distinct rhizosheaths; moreover, grasses and sedges expanded their rhizosheaths with increasing N-addition rate which allowed them to colonize belowground habitats. Grasses also shaped a different microenvironment around their roots compared with forbs by affecting the physicochemical, biological, and stress-avoiding properties of their rhizosphere soil. Rhizosheaths act as a biofilm-like shield by the accumulation of protective compounds, carboxylic anions and polysaccharides, determined by both plants and microorganisms. This enhanced the tolerance of grasses and sedges to stresses induced by N enrichment. Conversely, forbs lacked the protective rhizosheaths which renders their roots sensitive to stresses induced by N enrichment, thus contributing to their disappearance under N-enriched conditions. This study uncovers the processes by which belowground facilitation and trait matching affect aboveground responses under conditions of N enrichment, which advances our mechanistic understanding of the contribution of competitive exclusion and environmental tolerance to plant diversity loss caused by N deposition. |
| 关键词 | belowground trait competitive exclusion environmental tolerance grassland ecosystem N deposition plant diversity loss rhizosphere microhabitat |
| 学科领域 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| DOI | 10.1111/gcb.16147 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | ALUMINUM TOLERANCE ; SPECIES RICHNESS ; CAMPOS-RUPESTRES ; SOIL ; DEPOSITION ; COMPETITION ; IMPACT ; MECHANISMS ; RHIZOSHEATH ; ACQUISITION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000768550300001 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| EISSN | 1365-2486 |
| 资助机构 | National Natural Science Foundation of China [31830011, 31870457] |
| 作者邮箱 | c.stevens@lancaster.ac.uk ; whzhang@ibcas.ac.cn |
| 作品OA属性 | Green Accepted |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28601 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Agr Univ Hebei, Mt Area Res Inst, Baoding, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 5.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China 6.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, Tianjin, Peoples R China 7.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England 8.Univ Western Australia, Sch Biol Sci, Perth, WA, Australia 9.Univ Western Australia, Inst Agr, Perth, WA, Australia 10.China Agr Univ, Natl Acad Green Agr, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Qiuying,Lu, Peng,Zhai, Xiufeng,et al. An integrated belowground trait-based understanding of nitrogen-driven plant diversity loss[J]. GLOBAL CHANGE BIOLOGY,2022,28(11):3651-3664. |
| APA | Tian, Qiuying.,Lu, Peng.,Zhai, Xiufeng.,Zhang, Ruifang.,Zheng, Yao.,...&Zhang, Wen-Hao.(2022).An integrated belowground trait-based understanding of nitrogen-driven plant diversity loss.GLOBAL CHANGE BIOLOGY,28(11),3651-3664. |
| MLA | Tian, Qiuying,et al."An integrated belowground trait-based understanding of nitrogen-driven plant diversity loss".GLOBAL CHANGE BIOLOGY 28.11(2022):3651-3664. |
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