Root phenology in a changing climate
Radville, L; McCormack, ML; Post, E; Eissenstat, DM
2016
Source PublicationJOURNAL OF EXPERIMENTAL BOTANY
ISSN0022-0957
Volume67Issue:12Pages:3617-3628
AbstractPlant phenology is one of the strongest indicators of ecological responses to climate change, and altered phenology can have pronounced effects on net primary production, species composition in local communities, greenhouse gas fluxes, and ecosystem processes. Although many studies have shown that aboveground plant phenology advances with warmer temperatures, demonstration of a comparable association for belowground phenology has been lacking because the factors that influence root phenology are poorly understood. Because roots can constitute a large fraction of plant biomass, and root phenology may not respond to warming in the same way as shoots, this represents an important knowledge gap in our understanding of how climate change will influence phenology and plant performance. We review studies of root phenology and provide suggestions to direct future research. Only 29% of examined studies approached root phenology quantitatively, strongly limiting interpretation of results across studies. Therefore, we suggest that researchers emphasize quantitative analyses in future phenological studies. We suggest that root initiation, peak growth, and root cessation may be under different controls. Root initiation and cessation may be more constrained by soil temperature and the timing of carbon availability, whereas the timing of peak root growth may represent trade-offs among competing plant sinks. Roots probably do not experience winter dormancy in the same way as shoots: 89% of the studies that examined winter phenology found evidence of growth during winter months. More research is needed to observe root phenology, and future studies should be careful to capture winter and early season phenology. This should be done quantitatively, with direct observations of root growth utilizing rhizotrons or minirhizotrons.
SubtypeJournal
KeywordBelowground endogenous exogenous phenology root dynamics root growth
Subject AreaPlant Sciences
WOS Subject ExtendedPlant Sciences
WOS KeywordBELOW-GROUND PHENOLOGY ; NORTHERN HARDWOOD FORESTS ; FINE ROOTS ; ELEVATED CO2 ; SHOOT GROWTH ; CARBON ALLOCATION ; SOIL-TEMPERATURE ; PLANT PHENOLOGY ; GROWING-SEASON ; ABOVEGROUND PHENOLOGY
Indexed BySCI
Language英语
WOS IDWOS:000378041900003
PublisherOXFORD UNIV PRESS
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44231
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Radville, L,McCormack, ML,Post, E,et al. Root phenology in a changing climate[J]. JOURNAL OF EXPERIMENTAL BOTANY,2016,67(12):3617-3628.
APA Radville, L,McCormack, ML,Post, E,&Eissenstat, DM.(2016).Root phenology in a changing climate.JOURNAL OF EXPERIMENTAL BOTANY,67(12),3617-3628.
MLA Radville, L,et al."Root phenology in a changing climate".JOURNAL OF EXPERIMENTAL BOTANY 67.12(2016):3617-3628.
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