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Changes of Aboveground and Belowground Biomass Allocation in Four Dominant Grassland Species Across a Precipitation Gradient

文献类型：期刊论文

作者Liu, Yongjie; Xu, Mingjie; Li, Guoe; Wang, Mingxia; Li, Zhenqing1,4; De Boeck, Hans J.
刊名FRONTIERS IN PLANT SCIENCE
出版日期2021
卷号12
关键词aboveground biomass belowground biomass climate change grassland grassland persistence rangeland sustainability precipitation amount
ISSN号1664-462X
DOI10.3389/fpls.2021.650802
文献子类Article
英文摘要Climate change is predicted to affect plant growth, but also the allocation of biomass to aboveground and belowground plant parts. To date, studies have mostly focused on aboveground biomass, while belowground biomass and allocation patterns have received less attention. We investigated changes in biomass allocation along a controlled gradient of precipitation in an experiment with four plant species (Leymus chinensis, Stipa grandis, Artemisia frigida, and Potentilla acaulis) dominant in Inner Mongolia steppe. Results showed that aboveground biomass, belowground biomass and total biomass all increased with increasing growing season precipitation, as expected in this water-limited ecosystem. Biomass allocation patterns also changed along the precipitation gradient, but significant variation between species was apparent. Specifically, the belowground biomass: aboveground biomass ratio (i.e., B:A ratio) of S. grandis was not impacted by precipitation amount, while B:A ratios of the other three species changed in different ways along the gradient. Some of these differences in allocation strategies may be related to morphological differences, specifically, the presence of rhizomes or stolons, though no consistent patterns emerged. Isometric partitioning, i.e., constant allocation of biomass aboveground and belowground, seemed to occur for one species (S. grandis), but not for the three rhizome or stolon-forming ones. Indeed, for these species, the slope of the allometric regression between log-transformed belowground biomass and log-transformed aboveground biomass significantly differed from 1.0 and B:A ratios changed along the precipitation gradient. As changes in biomass allocation can affect ecosystem functioning and services, our results can be used as a basis for further studies into allocation patterns, especially in a context of environmental change.
学科主题Plant Sciences
出版地LAUSANNE
WOS关键词3-DIMENSIONAL SOIL HETEROGENEITY ; PLANT BIOMASS ; TEMPORAL HETEROGENEITY ; POTENTILLA-ACAULIS ; GRAZING INTENSITY ; NITROGEN ADDITION ; ARTEMISIA-FRIGIDA ; CLIMATE-CHANGE ; LOESS PLATEAU ; WATER
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000644408700001
出版者FRONTIERS MEDIA SA
资助机构National Key Research and Development Program of China [2019YFC0507704] ; Lanzhou University [508000-561119213] ; National Natural Science Foundation of China [41571505]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26605]  
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.De Boeck, Hans J.] Univ Antwerp, Dept Biol, Plants & Ecosyst PLECO, Antwerp, Belgium
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, State Key Lab Grassland Agroecosyst, Minist Agr & Rural Affairs,Coll Pastoral Agr Sci, Lanzhou, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yongjie,Xu, Mingjie,Li, Guoe,et al. Changes of Aboveground and Belowground Biomass Allocation in Four Dominant Grassland Species Across a Precipitation Gradient[J]. FRONTIERS IN PLANT SCIENCE,2021,12.
APA Liu, Yongjie,Xu, Mingjie,Li, Guoe,Wang, Mingxia,Li, Zhenqing,&De Boeck, Hans J..(2021).Changes of Aboveground and Belowground Biomass Allocation in Four Dominant Grassland Species Across a Precipitation Gradient.FRONTIERS IN PLANT SCIENCE,12.
MLA Liu, Yongjie,et al."Changes of Aboveground and Belowground Biomass Allocation in Four Dominant Grassland Species Across a Precipitation Gradient".FRONTIERS IN PLANT SCIENCE 12(2021).

入库方式： OAI收割

来源：植物研究所

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