干旱区生态环境知识资源中心(Arid): Stoichiometry of C:N:P in the Roots of Alhagi sparsifolia Is More Sensitive to Soil Nutrients Than Aboveground Organs

Arid

DOI	10.3389/fpls.2021.698961
	Stoichiometry of C:N:P in the Roots of Alhagi sparsifolia Is More Sensitive to Soil Nutrients Than Aboveground Organs
	Yin, Hui; Zheng, Hongwei; Zhang, Bo; Tariq, Akash; Lv, Guanghui; Zeng, Fanjiang; Graciano, Corina
通讯作者	Lv, GH (corresponding author), Xinjiang Univ, Coll Resource & Environm Sci, Urumqi, Peoples R China. ; Tariq, A ; Zeng, FJ (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China. ; Tariq, A ; Zeng, FJ (corresponding author), Univ Chinese Acad Sci, Beijing, Peoples R China. ; Tariq, A ; Zeng, FJ (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Key Lab Desert Plant Roots Ecol & Vegeta, Urumqi, Peoples R China. ; Tariq, A ; Zeng, FJ (corresponding author), Cele Natl Stn Observ & Res Desert Grassland EcoSy, Cele, Peoples R China.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	The stoichiometry of carbon, nitrogen, and phosphorus (C:N:P) among leaves, stems, and roots reflects trade-offs in plants for acquiring resources and their growth strategy. The widely distributed plant Alhagi sparsifolia is an ideal species to study the ecological stoichiometry in different organs in response to the availability of nutrients and water in the desert ecosystem. However, which response of organs is most sensitive to environmental conditions is still unclear. To answer this question, we collected samples of plants and soils including not only aboveground leaves and stems, but also underground roots and soils from a wide range of arid areas during the growing season. The C, N, P, C:N, C:P, and N:P ratios in leaves, thorns, stems, and roots were derived to explore their relationship as well as their response mechanisms to nutrients and water spanning 1 m deep in the soil. The results showed that the order of N concentration was leaves > thorns > stems > roots, that the concentration of P in the leaves, thorns, and stems was similar, and that their values were higher than those in the roots. First, the C:N ratios in the leaves and stems were significantly positively correlated with the ratio in roots. The C:N ratios in each organ showed a significant relationship with the soil alkali hydrolyzable nitrogen (SAN) above a depth of 60 cm. In addition to SAN, soil available phosphorus (SAP) and soil organic carbon (SOC) affect the C:N ratio in the roots. Second, the C:P and N:P ratios in aboveground organs showed no correlations with the ratios in roots. The C:P and N:P ratios in the leaves and thorns have no relationship with soil nutrients, while the C:P ratio in roots was influenced by SAN and SOC in all soil layers. Finally, the N:P ratios in roots were also affected by nutrients in different soil depths at 0-20 and 60-80 cm. These results illustrate that the roots were more sensitive to soil nutrients than the aboveground parts. Our study of ecological stoichiometry also suggests a novel systematic approach for analyzing the sensitivity of responses of an organ to environmental conditions.
英文关键词	desert plant ecological stoichiometry leguminous plant nutrients water stress soil depths
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000713438100001
WOS关键词	PHOSPHORUS STOICHIOMETRY ; BIOLOGICAL STOICHIOMETRY ; GLOBAL PATTERNS ; LEAF NITROGEN ; PLANT ; DESERT ; ECONOMICS ; RESPONSES ; CLIMATE ; GROWTH
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368301
作者单位	[Yin, Hui; Lv, Guanghui] Xinjiang Univ, Coll Resource & Environm Sci, Urumqi, Peoples R China; [Yin, Hui; Zheng, Hongwei; Zhang, Bo; Tariq, Akash; Zeng, Fanjiang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China; [Yin, Hui; Zheng, Hongwei; Zhang, Bo; Tariq, Akash; Zeng, Fanjiang] Univ Chinese Acad Sci, Beijing, Peoples R China; [Yin, Hui; Zhang, Bo; Tariq, Akash; Zeng, Fanjiang] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Key Lab Desert Plant Roots Ecol & Vegeta, Urumqi, Peoples R China; [Yin, Hui; Zhang, Bo; Tariq, Akash; Zeng, Fanjiang] Cele Natl Stn Observ & Res Desert Grassland EcoSy, Cele, Peoples R China; [Zheng, Hongwei] Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia, Urumqi, Peoples R China; [Graciano, Corina] Univ Nacl La Plata, Consejo Nacl Invest Cient & Tecn, Inst Fis Vegetal, Buenos Aires, DF, Argentina
推荐引用方式 GB/T 7714	Yin, Hui,Zheng, Hongwei,Zhang, Bo,et al. Stoichiometry of C:N:P in the Roots of Alhagi sparsifolia Is More Sensitive to Soil Nutrients Than Aboveground Organs[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2021,12.
APA	Yin, Hui.,Zheng, Hongwei.,Zhang, Bo.,Tariq, Akash.,Lv, Guanghui.,...&Graciano, Corina.(2021).Stoichiometry of C:N:P in the Roots of Alhagi sparsifolia Is More Sensitive to Soil Nutrients Than Aboveground Organs.FRONTIERS IN PLANT SCIENCE,12.
MLA	Yin, Hui,et al."Stoichiometry of C:N:P in the Roots of Alhagi sparsifolia Is More Sensitive to Soil Nutrients Than Aboveground Organs".FRONTIERS IN PLANT SCIENCE 12(2021).