Sensitive Indicators of Zonal Stipa Species to Changing Temperature and Precipitation in Inner Mongolia Grassland, China

doi:10.3389/fpls.2016.00073

	Sensitive Indicators of Zonal Stipa Species to Changing Temperature and Precipitation in Inner Mongolia Grassland, China
	Lv, Xiaomin 1; Zhou, Guangsheng 2; Wang, Yuhui ; Song, Xiliang 1
	2016
发表期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
卷号	7
摘要	Climate change often induces shifts in plant functional traits. However, knowledge related to sensitivity of different functional traits and sensitive indicator representing plant growth under hydrothermal change remains unclear. Inner Mongolia grassland is predicted to be one of the terrestrial ecosystems which are most vulnerable to climate change. In this study, we analyzed the response of four zonal Stipa species (S. baicalensis, S. grandis, S. breviflora, and S. bungeana) from Inner Mongolia grassland to changing temperature (control, increased 1.5, 2, 4, and 6 degrees C), precipitation (decreased 30 and 15%, control, increased 15 and 30%) and their combined effects via climate control chambers. The relative change of functional traits in the unit of temperature and precipitation change was regarded as sensitivity coefficient and sensitive indicators were examined by pathway analysis. We found that sensitivity of the four Stipa species to changing temperature and precipitation could be ranked as follows: S. bungeana > S. grandis > S. breviflora > S. baicalensis. In particular, changes in leaf area, specific leaf area and root/shoot ratio could account for 86% of the changes in plant biomass in the four Stipa species. Also these three measurements were more sensitive to hydrothermal changes than the other functional traits. These three functional indicators reflected the combination of plant production capacity (leaf area), adaptive strategy (root/shoot ratio), instantaneous environmental effects (specific leaf area), and cumulative environmental effects (leaf area and root/shoot ratio). Thus, leaf area, specific leaf area and root/shoot ratio were chosen as sensitive indicators in response to changing temperature and precipitation for Stipa species. These results could provide the basis for predicting the influence of climate change on Inner Mongolia grassland based on the magnitude of changes in sensitive indicators.
关键词	Stipa species precipitation changes warming sensitive indicator Inner Mongolia grassland
学科领域	Plant Sciences
DOI	10.3389/fpls.2016.00073
收录类别	SCI
语种	英语
WOS关键词	PLANT-GROWTH ; ELEVATED CO2 ; CLIMATE VARIABILITY ; WATER ; RESPONSES ; CARBON ; PHOTOSYNTHESIS ; ECOSYSTEMS ; DROUGHT ; PEROXIDATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000369789500001
出版者	FRONTIERS MEDIA SA
文献子类	Article
出版地	LAUSANNE
资助机构	Chinese Academy of Sciences Strategic Priority Research Program-Climate Change: Carbon Budget and Relevant Issues [XDA-05050408] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201506001-3]
作者邮箱	gszhou@ibcas.ac.cn
作品OA属性	gold, Green Published
引用统计	被引频次：19[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/2S10CLM1/25201
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Dept Life Sci, Beijing, Peoples R China 3.Chinese Acad Meteorol Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lv, Xiaomin,Zhou, Guangsheng,Wang, Yuhui,et al. Sensitive Indicators of Zonal Stipa Species to Changing Temperature and Precipitation in Inner Mongolia Grassland, China[J]. FRONTIERS IN PLANT SCIENCE,2016,7.
APA	Lv, Xiaomin,Zhou, Guangsheng,Wang, Yuhui,&Song, Xiliang.(2016).Sensitive Indicators of Zonal Stipa Species to Changing Temperature and Precipitation in Inner Mongolia Grassland, China.FRONTIERS IN PLANT SCIENCE,7.
MLA	Lv, Xiaomin,et al."Sensitive Indicators of Zonal Stipa Species to Changing Temperature and Precipitation in Inner Mongolia Grassland, China".FRONTIERS IN PLANT SCIENCE 7(2016).

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