干旱区生态环境知识资源中心(Arid): Effects of nitrogen addition on C:N:P stoichiometry in moss crust-soil continuum in the N-limited Gurbantunggut Desert, Northwest China

Arid

DOI	10.1016/j.ejsobi.2020.103174
	Effects of nitrogen addition on C:N:P stoichiometry in moss crust-soil continuum in the N-limited Gurbantunggut Desert, Northwest China
	Liu, Jianguo 1,2; Liu, Weiguo 1; Long, Xi-En 3; Chen, Yinguang 1,4; Huang, Tinwen 1; Huo, Jusong 5; Duan, Luchun 6; Wang, Xiyuan 1
通讯作者	Liu, Weiguo ; Long, Xi-En
来源期刊	EUROPEAN JOURNAL OF SOIL BIOLOGY
ISSN	1164-5563
EISSN	1778-3615
出版年	2020
卷号	98
英文摘要	Human-induced nitrogen (N) enrichment contributes to plant nutrient status, which potentially alters the stoichiometry of carbon (C), N, and phosphorus (P) in plants and soil. However, the response of ecological stoichiometry in a moss crust-soil continuum to N enrichment in a N-limited desert ecosystem has not been comprehensively explored. Here, we conducted a four-level N addition experiment [0 (CK), 1.8 (LN), 3.6 (MN), and 7.2 (HN) g N M-2 year(-1)] to elucidate the influence of short-term N input on C:N:P stoichiometry in both the moss crusts (surface) and their underlying soil (subsurface) in the southern margin of the Gurbantunggut Desert, Northwest China. The results showed that N addition increased moss crusts and its underlying soil C, N, and P concentrations and elevated their C:P and N:P ratios. The soil microbial biomass C (SMBC) and N (SMBN) content in soil under moss crusts were shifted across N addition gradient. SMBC and SMBN mean content in May (345.92 mg/kg, 63.21 mg/kg) was higher than July (161.73 mg/kg, 44.38 mg/kg) and October (168.22 mg/kg, 60.73 mg/kg). When MN was added, the mean content of SMBC (288.92 mg/kg) and SMBN (67.95 mg/kg) is higher than that of other N additions levels. N addition treatments showed a significant correlations between moss crusts C, N, and P and associated soil C, N, and P. Redundancy analysis and stepwise multiple linear regression all indicated that moss crusts C:N:P stoichiometry were more sensitive to its underlying soil TP. Soil nutrient traits of moss crusts covered accounted for 68.6% of the variation in C:N:P stoichiometry of the moss crusts, especially soil TP (50.3%), determine the variation of the moss crusts C:N:P stoichiometry. N deposition stimulates the growth of most crusts and their N:P and C:P ratios, resulting in a shift in the desert ecosystem from N to P limitation.
英文关键词	Nitrogen enrichment Nutrient status N:P ratio C:P ratio Soil microbial biomass N to P limitation
类型	Article
语种	英语
国家	Peoples R China ; Australia
收录类别	SCI-E
WOS记录号	WOS:000534259000005
WOS关键词	PHOSPHORUS LIMITATION ; P STOICHIOMETRY ; TENGGER DESERT ; LOESS PLATEAU ; PLANT ; DEPOSITION ; CARBON ; RESPONSES ; ACIDIFICATION ; ECOSYSTEMS
WOS类目	Ecology ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	兰州大学 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319037
作者单位	1.Xinjiang Univ, Minist Educ, Key Lab Oasis Ecol, Coll Resources & Environm Sci, Urumqi 830046, Peoples R China; 2.Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; 3.Nantong Univ, Sch Geog Sci, Nantong 226007, Peoples R China; 4.Tongji Univ, Sch Environm Sci & Engn, Shanghai 200092, Peoples R China; 5.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China; 6.Univ Newcastle, Fac Sci, Global Ctr Environm Remediat, Callaghan, NSW 2308, Australia
推荐引用方式 GB/T 7714	Liu, Jianguo,Liu, Weiguo,Long, Xi-En,et al. Effects of nitrogen addition on C:N:P stoichiometry in moss crust-soil continuum in the N-limited Gurbantunggut Desert, Northwest China[J]. 兰州大学, 新疆大学,2020,98.
APA	Liu, Jianguo.,Liu, Weiguo.,Long, Xi-En.,Chen, Yinguang.,Huang, Tinwen.,...&Wang, Xiyuan.(2020).Effects of nitrogen addition on C:N:P stoichiometry in moss crust-soil continuum in the N-limited Gurbantunggut Desert, Northwest China.EUROPEAN JOURNAL OF SOIL BIOLOGY,98.
MLA	Liu, Jianguo,et al."Effects of nitrogen addition on C:N:P stoichiometry in moss crust-soil continuum in the N-limited Gurbantunggut Desert, Northwest China".EUROPEAN JOURNAL OF SOIL BIOLOGY 98(2020).