Prolonged warming and drought modify belowground interactions for water among coexisting plants
文献类型：期刊论文
| 作者 | Grossiord, Charlotte1; Sevanto, Sanna1; Bonal, Damien2; Borrego, Isaac1; Dawson, Todd E.3,4; Ryan, Max1; Wang, Wenzhi5,6 ; McDowell, Nate G.6
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| 刊名 | TREE PHYSIOLOGY
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| 出版日期 | 2019 |
| 卷号 | 39期号:1页码:55-63 |
| 关键词 | deuterium Juniperus monosperma Pinus edulis species interactions stable isotopes water uptake depth |
| ISSN号 | 0829-318X |
| DOI | 10.1093/treephys/tpy080 |
| 通讯作者 | Grossiord, Charlotte(cgrossiord@lanl.gov) |
| 英文摘要 | Understanding how climate alters plant-soil water dynamics, and its impact on physiological functions, is critical to improved predictions of vegetation responses to climate change. Here we analyzed how belowground interactions for water shift under warming and drought, and associated impacts on plant functions. In a semi-arid woodland, adult trees (pinon and juniper) and perennial grasses (blue grama) were exposed to warming and precipitation reduction. After 6 years of continuous treatment exposure, soil and plant water isotopic composition was measured to assess plant water uptake depths and community-level water source partitioning. Warming and drought modified plant water uptake depths. Under warming, contrasting changes in water sources between grasses and trees reduced belowground water source partitioning, resulting in higher interspecific competition for water. Under drought, shifts in trees and grass water sources to deeper soil layers resulted in the maintenance of the naturally occurring water source partitioning among species. Trees showed higher water stress, and reduced water use and photosynthesis in response to warming and drought. This case study demonstrates that neighboring plants shift their competitive interactions for water under prolonged warming and drought, but regardless of whether changes in moisture sources will result in increased competition among species or maintained partitioning of water resources, these competitive adaptations may easily be overridden by climate extremes. |
| WOS关键词 | SOIL-WATER ; TREES ; TRANSPIRATION ; PRECIPITATION ; CONDUCTANCE ; TEMPERATURE ; STRATEGIES ; RESPONSES ; DYNAMICS |
| 资助项目 | Los Alamos National Laboratory ; Pacific Northwest National Labs LDRD program ; US Department of Energy, Office of Science, Biological and Environmental Research |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000461507600006 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Los Alamos National Laboratory ; Pacific Northwest National Labs LDRD program ; US Department of Energy, Office of Science, Biological and Environmental Research |
| 源URL | [http://ir.imde.ac.cn/handle/131551/25323]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Grossiord, Charlotte |
| 作者单位 | 1.Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87545 USA 2.Univ Lorraine, AgroParisTech, INRA, UMR Silva, F-54000 Nancy, France 3.Univ Calif Berkeley, Ctr Stable Isotope Biogeochem, Berkeley, CA 94720 USA 4.Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA 5.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolut & Regulat, Chengdu 610041, Sichuan, Peoples R China 6.Pacific Northwest Natl Lab, Earth Syst Sci Div, Richland, WA 99354 USA |
| 推荐引用方式 GB/T 7714 | Grossiord, Charlotte,Sevanto, Sanna,Bonal, Damien,et al. Prolonged warming and drought modify belowground interactions for water among coexisting plants[J]. TREE PHYSIOLOGY,2019,39(1):55-63. |
| APA | Grossiord, Charlotte.,Sevanto, Sanna.,Bonal, Damien.,Borrego, Isaac.,Dawson, Todd E..,...&McDowell, Nate G..(2019).Prolonged warming and drought modify belowground interactions for water among coexisting plants.TREE PHYSIOLOGY,39(1),55-63. |
| MLA | Grossiord, Charlotte,et al."Prolonged warming and drought modify belowground interactions for water among coexisting plants".TREE PHYSIOLOGY 39.1(2019):55-63. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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