Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of Northern China

doi:10.1016/j.catena.2018.04.018

ISWC OpenIR > 水保所科研产出--SCI > 2018--SCI

	Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of Northern China
	Yang Yang 1; Bing-Ru Liu 2; Shao-Shan An 1,3; An, SS (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2018
发表期刊	CATENA
ISSN	0341-8162
通讯作者邮箱	shan@ms.iswc.ac.cn
卷号	166 页码:328-338
摘要	Ecological stoichiometry reflects the element content and energy flow, which are important for biogeochemical cycling in ecosystems. However, the ecological stoichiometry in leaves, roots, litter and soil is largely unknown, especially in the desertified region of Northern China. Here, six dominant plant communities (Stipa bungeana, Agropyron mongolicum, Glycyrrhiza uralensis, Cynanchum komarovii, Artemisia ordosica, and Sophora aiopecuroides) were collected, and the carbon (C), nitrogen (N) and phosphorus (P) contents of leaves, roots, litters and soil were measured to explore the C:N:P stoichiometry and its driving factors. The C:N:P stoichiometry in leaves, roots, litters, and soil varied widely, and the plant community had a significant effect on the C:N:P stoichiometry in this region. There were high soil C:N, C:P and N:P ratios in non-leguminous plant communities and a high leaf N:P ratio in leguminous plant communities, and the C:N and C:P ratios in leaves were higher than in those in roots in all plant communities (p < 0.05). A correlation analysis showed that the C, N and P contents of leaves, roots, and litter were positively related to the soil C, N and P contents of the 0-5 cm layer, and the correlation coefficients gradually weakened with the soil depth. Additionally, the soil properties (except soil P) led to increased variance of the C:N:P stoichiometry in leaves, roots, and litter, and there were strong links among the C:N:P stoichiometry in leaves, roots, litter and soil, suggesting that the variation in the C:N:P stoichiometry in leaves, roots, and litter was mainly controlled by the soil properties, which was especially true for soil microbial biomass carbon (SMBC) and nitrogen (SMBN) according to redundancy analysis (RDA). Overall, these results demonstrate that the patterns of the C:N:P stoichiometry and element distribution exhibit significant flexibility among these plant communities, providing basic data for improving the parameterization of future ecological models in the desertified region of Northern China.
关键词	Ecological Stoichiometry Leaves Roots Litters Soil Desertified Region
学科领域	Geology ; Agriculture ; Water Resources
DOI	10.1016/j.catena.2018.04.018
收录类别	SCI
出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS记录号	WOS:000434238800032
出版者	ELSEVIER SCIENCE BV
项目资助者	National Natural Science Foundation of China [v] ; National Natural Science Foundation of China [v] ; Integrative Assessment of Eco-environmental Impact of Three Northern Regions Shelter Forest System Project in North Shaanxi Province from the Shaanxi Shelterbelt Construction Workstation ; Integrative Assessment of Eco-environmental Impact of Three Northern Regions Shelter Forest System Project in North Shaanxi Province from the Shaanxi Shelterbelt Construction Workstation ; Key Projects in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period [2015BAC01801] ; Key Projects in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period [2015BAC01801]
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8223
专题	水保所科研产出--SCI_2018--SCI
通讯作者	An, SS (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, Coll Nat Resource & Environm, Yangling 712100, Shaanxi, Peoples R China 2.Ningxia Univ, China Minist Educ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Yinchuan 750021, Peoples R China 3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yang Yang,Bing-Ru Liu,Shao-Shan An,et al. Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of Northern China[J]. CATENA,2018,166:328-338.
APA	Yang Yang,Bing-Ru Liu,Shao-Shan An,&An, SS .(2018).Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of Northern China.CATENA,166,328-338.
MLA	Yang Yang,et al."Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of Northern China".CATENA 166(2018):328-338.

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