干旱区生态环境知识资源中心(Arid): Spatial patterns in the C:N:P stoichiometry in Qinghai spruce and the soil across the Qilian Mountains, China

Arid

DOI	10.1016/j.catena.2020.104814
	Spatial patterns in the C:N:P stoichiometry in Qinghai spruce and the soil across the Qilian Mountains, China
	Liu, Jianguo; Gou, Xiaohua; Zhang, Fen; Bian, Rui; Yin, Dingcai
通讯作者	Gou, XH
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	196
英文摘要	Knowledge of nutrient traits, especially carbon (C), nitrogen (N), and phosphorus (P), is essential for understanding the biogeochemical cycle and ecosystem functioning. However, spatial patterns in soil and plant tissues stoichiometry in the arid and semiarid forest ecosystem are not yet fully understood. Here, a regional-scale study was conducted on the Qilian Mountains to illustrate the macroecological patterns of soil C:N:P stoichiometry and the plant tissue N and P contents in Qinghai spruce (Picea crassifolia) forest and their driving forces. Soil C, N, and P contents and C:N:P ratios at all four soil depth layers (0-5, 5-10, 10-20, and 20-40 cm) showed depths, latitudinal, and longitudinal trends (p < 0.01), except for the soil P content and C:N ratios. The plant N and P contents and N:P ratios were found to be correlated with the latitude and longitude (p < 0.05). The N content and N:P ratios of plant tissue showed a negative correlation with the temperature (p < 0.05), which coincides with the temperature-plant physiological hypothesis. Additionally, the N and N:P of both the soil and plant tissue were positively correlated with precipitation (p < 0.05), which led to the plant tissue N and N:P and the soil TN and N:P being tightly related. Variation partitioning analysis revealed that the soil properties (39.31%) contributed more to the plant tissue N:P stoichiometry variations than climate (6.47%). The results demonstrated that the macroecological pattern of plant tissue N:P stoichiometry is mainly regulated by soil traits. These findings contribute to our understanding of the C:N:P macroecological pattern of forest ecosystems in arid regions, providing basic data for future forest cultivation and management in those areas.
英文关键词	C:N:P stoichiometry Climate Plant tissues Soil nutrients Macroecological patterns Qilian Mountains
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000583955200004
WOS关键词	LEAF NITROGEN ; PHOSPHORUS STOICHIOMETRY ; BIOLOGICAL STOICHIOMETRY ; PLANT-GROWTH ; TERRESTRIAL ; CLIMATE ; CARBON ; TEMPERATURE ; VARIABILITY ; BIOMASS
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327952
作者单位	[Gou, Xiaohua] Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; Lanzhou Univ, Gansu Liancheng Forest Ecosyst Field Observat & R, Lanzhou 730333, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jianguo,Gou, Xiaohua,Zhang, Fen,et al. Spatial patterns in the C:N:P stoichiometry in Qinghai spruce and the soil across the Qilian Mountains, China[J]. 兰州大学,2021,196.
APA	Liu, Jianguo,Gou, Xiaohua,Zhang, Fen,Bian, Rui,&Yin, Dingcai.(2021).Spatial patterns in the C:N:P stoichiometry in Qinghai spruce and the soil across the Qilian Mountains, China.CATENA,196.
MLA	Liu, Jianguo,et al."Spatial patterns in the C:N:P stoichiometry in Qinghai spruce and the soil across the Qilian Mountains, China".CATENA 196(2021).