globalchange  > 气候变化事实与影响
DOI: 10.1111/nph.15595
WOS记录号: WOS:000459928400009
论文题名:
Community Response to Extreme Drought (CRED): a framework for drought-induced shifts in plant-plant interactions
作者: Ploughe, Laura W.1; Jacobs, Elin M.2; Frank, Graham S.2; Greenler, Skye M.2; Smith, Melinda D.3; Dukes, Jeffrey S.1,2
通讯作者: Ploughe, Laura W.
刊名: NEW PHYTOLOGIST
ISSN: 0028-646X
EISSN: 1469-8137
出版年: 2019
卷: 222, 期:1, 页码:52-69
语种: 英语
英文关键词: competition ; drought ; facilitation ; plant community ; recovery ; resilience ; resistance ; stress gradient hypothesis (SGH)
WOS关键词: STRESS-GRADIENT HYPOTHESIS ; CENTRAL GRASSLAND REGION ; CLIMATE-CHANGE ; SOIL TEXTURE ; RAINFALL VARIABILITY ; SHRUB-FACILITATION ; SPECIES RICHNESS ; WEATHER EVENTS ; SUMMER DROUGHT ; NITROGEN
WOS学科分类: Plant Sciences
WOS研究方向: Plant Sciences
英文摘要:

As climate changes, many regions of the world are projected to experience more intense droughts, which can drive changes in plant community composition through a variety of mechanisms. During drought, community composition can respond directly to resource limitation, but biotic interactions modify the availability of these resources. Here, we develop the Community Response to Extreme Drought framework (CRED), which organizes the temporal progression of mechanisms and plant-plant interactions that may lead to community changes during and after a drought. The CRED framework applies some principles of the stress gradient hypothesis (SGH), which proposes that the balance between competition and facilitation changes with increasing stress. The CRED framework suggests that net biotic interactions (NBI), the relative frequency and intensity of facilitative (+) and competitive (-) interactions between plants, will change temporally, becoming more positive under increasing drought stress and more negative as drought stress decreases. Furthermore, we suggest that rewetting rates affect the rate of resource amelioration, specifically water and nitrogen, altering productivity responses and the intensity and importance of NBI, all of which will influence drought-induced compositional changes. System-specific variables and the intensity of drought influence the strength of these interactions, and ultimately the system's resistance and resilience to drought.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/133880
Appears in Collections:气候变化事实与影响

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作者单位: 1.Purdue Univ, Dept Biol Sci, 915 W State St, W Lafayette, IN 47907 USA
2.Purdue Univ, Dept Forestry & Nat Resources, 715 W State St, W Lafayette, IN 47907 USA
3.Colorado State Univ, Grad Degree Program Ecol, Dept Biol, 251 W Pitkin St, Ft Collins, CO 80523 USA

Recommended Citation:
Ploughe, Laura W.,Jacobs, Elin M.,Frank, Graham S.,et al. Community Response to Extreme Drought (CRED): a framework for drought-induced shifts in plant-plant interactions[J]. NEW PHYTOLOGIST,2019-01-01,222(1):52-69
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