A high stem to leaf ratio reduced rainfall use efficiency under altered rainfall patterns in a semi-arid grassland in northeast China

doi:10.1111/plb.13278

IB-CAS > 中科院光生物学重点实验室

	A high stem to leaf ratio reduced rainfall use efficiency under altered rainfall patterns in a semi-arid grassland in northeast China
	Zhang, J.; Gao, X.; Zheng, X.; Yang, Y.; Fan, G.; Shi, Y.; Wang, J.; Mu, C.
	2021
发表期刊	PLANT BIOLOGY
ISSN	1435-8603
卷号	23 期号:5 页码:760-769
摘要	Rainfall use efficiency (RUE) is crucial for understanding the changes in grassland productivity due to variations in future rainfall patterns. Recently, numerous studies have been conducted on the relationship between RUE and the amount of rainfall, but there has been little research on the influence of rainfall distribution and the interactive effect of rainfall amounts and distribution on RUE. Here, a simulated rainfall experiment was conducted to evaluate the impacts of rainfall amount (average rainfall amount (R0), 334 mm; decreased (R-) and increased (R+) rainfall amounts, 233 mm and 434 mm, respectively) and dry intervals (comprising 6-day, 9-day, 12-day, 15-day, 18-day and 21-day intervals between rainfall) on productivity and RUE in Leymus chinensis (Trin.) Tzvel., a dominant grass of the Eastern Eurasian Steppe. Our results showed that (1) for biomass production and RUE, moderate extension of dry intervals was conducive to enhancing total biomass production and RUE. The peak values of total biomass and RUE appeared during the 15-day interval for R-, and the 18-day interval for R0 and R+. (2) For biomass allocation, extension of dry intervals decreased the stem to leaf ratio (S/L) and the root to shoot ratio (R/S). (3) Further, the S/L ratio was significantly negatively correlated with RUE. These results suggest that variations in rainfall patterns can alter the RUE by changing the S/L ratio, and finally influence biomass production in L. chinensis. These findings have important implications for understanding and predicting the effect of future climate change on productivity in semi-arid grassland.
关键词	biomass allocation climate change rainfall patterns rainfall use efficiency
学科领域	Plant Sciences
DOI	10.1111/plb.13278
收录类别	SCI
语种	英语
WOS关键词	PRECIPITATION-USE EFFICIENCY ; PRIMARY PRODUCTIVITY ; BIOMASS ALLOCATION ; ALPINE GRASSLANDS ; FORAGE YIELD ; WATER ; RESPONSES ; ECOSYSTEM ; NITROGEN ; EVENTS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000657830900001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1438-8677
资助机构	National Natural Science Foundation of China [31971505] ; Natural Science Foundation of Jilin Province [YDZJ202101ZYTS081] ; 13th Five-Year Science and Technology Research Project of the Department of Education, Jilin Province [JJKH20201180KJ] ; Development and Reform Commission Project of Jilin Province [2014Y095] ; Youth Talent Support Project of Jilin Province [QT202007]
作者邮箱	wangjf150@nenu.edu.cn ; mucs821@nenu.edu.cn
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26502
专题	中科院光生物学重点实验室
作者单位	1.[Zhang, J. 2.Zheng, X. 3.Yang, Y. 4.Shi, Y. 5.Wang, J. 6.Mu, C.] Northeast Normal Univ, Jilin Songnen Grassland Ecosyst Natl Observat & R, Minist Educ, Inst Grassland Sci,Key Lab Vegetat Ecol, Changchun 130024, Peoples R China 7.[Gao, X.] Meteorol Observ Jilin Prov, Changchun 130062, Jilin, Peoples R China 8.[Fan, G.] Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Zhang, J.,Gao, X.,Zheng, X.,et al. A high stem to leaf ratio reduced rainfall use efficiency under altered rainfall patterns in a semi-arid grassland in northeast China[J]. PLANT BIOLOGY,2021,23(5):760-769.
APA	Zhang, J..,Gao, X..,Zheng, X..,Yang, Y..,Fan, G..,...&Mu, C..(2021).A high stem to leaf ratio reduced rainfall use efficiency under altered rainfall patterns in a semi-arid grassland in northeast China.PLANT BIOLOGY,23(5),760-769.
MLA	Zhang, J.,et al."A high stem to leaf ratio reduced rainfall use efficiency under altered rainfall patterns in a semi-arid grassland in northeast China".PLANT BIOLOGY 23.5(2021):760-769.

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