干旱区生态环境知识资源中心(Arid): Response of different organs' stoichiometry of Phragmites australis to soil salinity in arid marshes, China

Arid

DOI	10.1016/j.gecco.2021.e01843
	Response of different organs' stoichiometry of Phragmites australis to soil salinity in arid marshes, China
	Zhang, Jian; Xie, Huanjie; Biswas, Asim; Shan, Yujie; Qi, Xuanxuan; Cao, Jianjun
通讯作者	Cao, JJ (corresponding author), Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2021
卷号	31
英文摘要	Soil salinization, an important and increasingly prevalent issue in arid regions, influences plant growth and carbon (C): nitrogen (N): phosphorus (P) stoichiometry patterns by limiting nutrient access. Plant C:N:P stoichiometry patterns and response to soil salinity among organs (e.g., leaves, stems and roots) reflect plants' trade-offs between access to resources and their adaptation strategies to different habitats. Common in marshes of arid middle-lower reaches of the Shule River Basin, China, Phragmites australis (Cav.) Trin. Ex Steud. (P. australis), is often the dominant species. The effects of soil salinity on the C:N:P stoichiometry among organs of P. australis were investigated in this study. The average N and P concentrations in leaves (19.09 +/- 0.63 and 0.98 +/- 0.05 g center dot kg(-1), respectively) were significantly greater than those in roots (3.16 +/- 0.16 and 0.76 +/- 0.05 g center dot kg(-1), respectively) and stems (3.80 +/- 0.16 and 0.55 +/- 0.05 g center dot kg(-1), respectively) (P 0.05). However, the average C concentrations in leaves (406.47 +/- 5.37 g center dot kg(-1)) were not significantly different from those in stems (405.63 +/- 6.03 g center dot kg(-1)) and roots (402.83 +/- 7.94 g center dot kg(-1)) (P 0.05). The N:P ratio in leaves (20.89 +/- 0.81) was significantly greater than those in stems (8.95 +/- 0.67) and roots (5.11 +/- 0.49), while C:N and C:P ratios (22.33 +/- 0.82 and 469.25 +/- 26.81, respectively) were significantly lower than those in stems (114.56 +/- 4.93 and 1014.49 +/- 86.57, respectively) and roots (144.58 +/- 8.25 and 693.00 +/- 74.18, respectively) (P < 0.05). N and P concentrations of leaves and C concentration of stems under high soil salinity were significantly lower than those in low and medium soil salinity, whereas C:P and N:P ratios of leaves and C:P ratio of stems were significantly greater than the others (P < 0.05). Soil salinity played a dominant role in determining leaf's and root's C:N:P stoichiometry of P. australis. This indicated that plant in arid marshes adapt to soil salinity conditions by modulating the changes in solute penetration in leaves and roots. These lead to diverse stoichiometric response patterns of C: N:P stoichiometry among organs. The information helps to understand C:N:P stoichiometry patterns, nutrient utilization strategy and carbon allocation of dominant plants and its potential responses to global changes in the marsh wetland ecosystems of arid regions.
英文关键词	C:N:P stoichiometry Phragmites australis Marshes Soil salinity gradients Shule River Basin
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000708641300006
WOS关键词	PHOSPHORUS STOICHIOMETRY ; ECOLOGICAL STOICHIOMETRY ; NUTRIENT CONCENTRATIONS ; TERRESTRIAL PLANTS ; GLOBAL ANALYSIS ; FRESH-WATER ; NITROGEN ; CARBON ; LEAF ; LEAVES
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363476
作者单位	[Zhang, Jian; Xie, Huanjie; Shan, Yujie; Qi, Xuanxuan; Cao, Jianjun] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Zhang, Jian; Cao, Jianjun] Key Lab Resource Environm & Sustainable Dev Oasis, Lanzhou 730070, Gansu, Peoples R China; [Biswas, Asim] Univ Guelph, Sch Environm Sci, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada
推荐引用方式 GB/T 7714	Zhang, Jian,Xie, Huanjie,Biswas, Asim,et al. Response of different organs' stoichiometry of Phragmites australis to soil salinity in arid marshes, China[J],2021,31.
APA	Zhang, Jian,Xie, Huanjie,Biswas, Asim,Shan, Yujie,Qi, Xuanxuan,&Cao, Jianjun.(2021).Response of different organs' stoichiometry of Phragmites australis to soil salinity in arid marshes, China.GLOBAL ECOLOGY AND CONSERVATION,31.
MLA	Zhang, Jian,et al."Response of different organs' stoichiometry of Phragmites australis to soil salinity in arid marshes, China".GLOBAL ECOLOGY AND CONSERVATION 31(2021).