干旱区生态环境知识资源中心(Arid): Phenotypic plasticity of Artemisia ordosica seedlings in response to different levels of calcium carbonate in soil

Arid

	Phenotypic plasticity of Artemisia ordosica seedlings in response to different levels of calcium carbonate in soil
	Xue Pingping; Zhao Xuelai; Gao Yubao; He Xingdong
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2019
卷号	11 期号:1 页码:58-65
英文摘要	Plant phenotypic plasticity is a common feature that is crucial for explaining interspecific competition, dynamics and biological evolution of plant communities. In this study, we tested the effects of soil CaCO_3 (calcium carbonate) on the phenotypic plasticity of a psammophyte, Artemisia ordosica, an important plant species on sandy lands in arid and semi-arid areas of China, by performing pot experiments under different CaCO_3 contents with a two-factor randomized block design and two orthogonal designs. We analyzed the growth responses (including plant height, root length, shoot-leaf biomass and root biomass) of A. ordosica seedlings to different soil CaCO_3 contents. The results revealed that, with a greater soil CaCO_3 content, A. ordosica seedlings gradually grew more slowly, with their relative growth rates of plant height, root length, shoot-leaf biomass and root biomass all decreasing significantly. Root N/P ratios showed significant negative correlations with the relative growth rates of plant height, shoot-leaf biomass and root length of A. ordosica seedlings; however, the relative growth rate of root length increased significantly with the root P concentration increased, showing a positive correlation. These results demonstrate that soil CaCO_3 reduces the local P availability in soil, which produces a non-adaptive phenotypic plasticity to A. ordosica seedlings. This study should prove useful for planning and promoting the restoration of damaged/degraded vegetation in arid and semi-arid areas of China.
英文关键词	Artemisia ordosica N/P ratio phenotypic plasticity relative growth rate soil CaCO_3 soil P availability arid and semi-arid areas
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6487023
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336098
作者单位	Xue Pingping, College of Life Sciences, Nankai University, Tianjin 300071, China.; Zhao Xuelai, College of Life Sciences, Nankai University, Tianjin 300071, China.; Gao Yubao, College of Life Sciences, Nankai University, Tianjin 300071, China.; He Xingdong, College of Life Sciences, Nankai University, Tianjin 300071, China.
推荐引用方式 GB/T 7714	Xue Pingping,Zhao Xuelai,Gao Yubao,et al. Phenotypic plasticity of Artemisia ordosica seedlings in response to different levels of calcium carbonate in soil[J],2019,11(1):58-65.
APA	Xue Pingping,Zhao Xuelai,Gao Yubao,&He Xingdong.(2019).Phenotypic plasticity of Artemisia ordosica seedlings in response to different levels of calcium carbonate in soil.Journal of Arid Land,11(1),58-65.
MLA	Xue Pingping,et al."Phenotypic plasticity of Artemisia ordosica seedlings in response to different levels of calcium carbonate in soil".Journal of Arid Land 11.1(2019):58-65.