Effects of field experimental warming on wheat root distribution under conventional tillage and no-tillage systems
Hou, RX; Ouyang, Z; Han, DR; Wilson, GV
2018
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume8Issue:5Pages:2418-2427
AbstractDespite the obvious importance of roots to agro-ecosystem functioning, few studies have attempted to examine the effects of warming on root biomass and distribution, especially under different tillage systems. In this study, we performed a field warming experiment using infrared heaters on winter wheat, in long-term conventional tillage and no-tillage plots, to determine the responses of root biomass and distribution to warming. Soil monoliths were collected from three soil depths (0-10, 10-20, and 20-30cm). Results showed that root biomass was noticeably increased under both till and no-till tillage systems (12.1% and 12.9% in 2011, and 9.9% and 14.5% in 2013, in the two tillage systems, respectively) in the 0-30cm depth, associated with a similar increase in shoot biomass. However, warming-induced root biomass increases occurred in the deeper soil layers (i.e., 10-20 and 20-30cm) in till, while the increase in no-till was focused in the surface layer (0-10cm). Differences in the warming-induced increases in root biomass between till and no-till were positively correlated with the differences in soil total nitrogen (R-2=.863, p<.001) and soil bulk density (R-2=.853, p<.001). Knowledge of the distribution of wheat root in response to warming should help manage nutrient application and cycling of soil C-N pools under anticipated climate change conditions.
SubtypeJournal
Keywordbulk density global warming no-tillage soil nitrogen root biomass
Subject AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS Subject ExtendedEcology ; Evolutionary Biology
WOS KeywordWINTER-WHEAT ; CARBON SEQUESTRATION ; INCREASED TEMPERATURE ; TALLGRASS PRAIRIE ; ORGANIC-CARBON ; CLIMATE-CHANGE ; TOTAL NITROGEN ; GROWTH ; RESPONSES ; CHINA
Indexed BySCI
Language英语
WOS IDWOS:000426725900004
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/43908
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
Hou, RX,Ouyang, Z,Han, DR,et al. Effects of field experimental warming on wheat root distribution under conventional tillage and no-tillage systems[J]. ECOLOGY AND EVOLUTION,2018,8(5):2418-2427.
APA Hou, RX,Ouyang, Z,Han, DR,&Wilson, GV.(2018).Effects of field experimental warming on wheat root distribution under conventional tillage and no-tillage systems.ECOLOGY AND EVOLUTION,8(5),2418-2427.
MLA Hou, RX,et al."Effects of field experimental warming on wheat root distribution under conventional tillage and no-tillage systems".ECOLOGY AND EVOLUTION 8.5(2018):2418-2427.
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