Knowledge Management System Of Institute Of Botany,CAS
| Intraspecific trait variation drives grassland species richness and productivity under changing precipitation | |
Deng, Meifeng1; Liu, Weixing1; Li, Ping1; Jiang, Lin2; Li, Shaopeng3; Jia, Zhou1; Yang, Sen1; Guo, Lulu1; Wang, Zhenhua1; Liu, Lingli1
| |
| 2021 | |
| 发表期刊 | ECOSPHERE
 |
| ISSN | 2150-8925 |
| 卷号 | 12期号:8 |
| 摘要 | It has been increasingly recognized that plant traits and their intraspecific variation play pivotal roles in determining how ecosystem structure and function respond to a changing environment. Yet, it remains unclear how and which plant traits regulate the assembly process and thus affect ecosystem structure and function under climate changes. Here, we selected six steppe sites with snow fences along a precipitation gradient in inner Mongolia. We measured traits including plant height and leaf carbon, nitrogen, and phosphorus concentrations. We incorporated intraspecific trait variation to quantify the strength of external filters (assembly processes outside the community at a larger spatial scale), the strength of internal filters (assembly processes within the local community), and functional redundancy (the number of species having a similar function to an ecosystem). We applied these assembly rules to explain the changes in biodiversity and productivity in response to changing precipitation. We found that increased rainfall reduced plant carbon (C), nitrogen (N), and phosphorous (P) concentrations, but did not affect plant height. High snowfall increased phosphorous concentration, but did not affect other traits. Latent variable models identified climate (rainfall) and soil nutrient conditions (soil total N and P content) were more important than external filtering processes in predicting species richness. However, external filtering processes were the most important predictor of productivity. More specifically, we found with the increase in steppe productivity, the strength of the external filtering on leaf N increased and on plant height decreased, leading to leaf N converging into a small range but broadening the range of plant height. The internal filters had no significant effects on species richness or productivity. Additionally, we found that low precipitation reduced functional redundancy. We emphasize that intraspecific trait-variation drives plant productivity and richness responses to precipitation changes by regulating community assemblage. Our finding also underlines the importance to separate the contributions of different functional traits in regulating the responses of ecosystem structure and function to climate changes. |
| 关键词 | biodiversity and productivity community assembly drylands external and internal filtering functional redundancy grasslands intraspecific trait variation precipitation change |
| 学科领域 | Ecology |
| DOI | 10.1002/ecs2.3707 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | PLANT FUNCTIONAL TRAITS ; DRYLAND ECOSYSTEMS ; WATER AVAILABILITY ; SNOW DEPTH ; VARIABILITY ; REDUNDANCY ; PLASTICITY ; DIVERSITY ; GRADIENT ; NITROGEN |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000689453800035 |
| 出版者 | WILEY |
| 文献子类 | Article |
| 出版地 | HOBOKEN |
| 资助机构 | Chinese National Key Development Program for Basic Research [2019YFA0607302, 2017YFC0503900] ; National Natural Science Foundation of China [31700420, 31670478, 31988102] |
| 作者邮箱 | lingli.liu@ibcas.ac.cn |
| 作品OA属性 | gold |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/26711 |
| 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, Beijing 100049, Peoples R China 3.Georgia Inst Technol, Sch Biol, 310 Ferst Dr, Atlanta, GA 30332 USA 4.East China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Meifeng,Liu, Weixing,Li, Ping,et al. Intraspecific trait variation drives grassland species richness and productivity under changing precipitation[J]. ECOSPHERE,2021,12(8). |
| APA | Deng, Meifeng.,Liu, Weixing.,Li, Ping.,Jiang, Lin.,Li, Shaopeng.,...&Liu, Lingli.(2021).Intraspecific trait variation drives grassland species richness and productivity under changing precipitation.ECOSPHERE,12(8). |
| MLA | Deng, Meifeng,et al."Intraspecific trait variation drives grassland species richness and productivity under changing precipitation".ECOSPHERE 12.8(2021). |
| 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 | ||
| Intraspecific_trait_（4003KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论