干旱区生态环境知识资源中心(Arid): Seasonal nitrogen uptake strategies in a temperate desert ecosystem depends on N form and plant species

Arid

DOI	10.1111/plb.13083
	Seasonal nitrogen uptake strategies in a temperate desert ecosystem depends on N form and plant species
	Zhuang, W.1; Li, J.1; Yu, F.1; Dong, Z.2; Guo, H.1
通讯作者	Zhuang, W.
来源期刊	PLANT BIOLOGY
ISSN	1435-8603
EISSN	1438-8677
出版年	2020
卷号	22 期号:3 页码:386-393
英文摘要	Symbiotic plants might be able to regulate a limited nitrogen (N) pool, thus avoiding and reducing competition for resources, through the uptake of different chemical N forms. Our aim was to see whether coexisting herbs showed preference for different forms of N in a temperate desert. We conducted a situ experiment using the N-15 labeling method in the Gurbantunggut Desert of Northwestern China dominated by Erodium oxyrrhynchum, Hyalea pulchella, Nonea caspica and Lactuca undulata during their growing period (April and May). Four desert herb species preferentially relied on N-15-NO3 for their N nutrition. Multi-factor analysis of variance (ANOVA) analysis results showed that species, N forms, months, and soil depths strongly affected N uptake rate. The uptake rate by herbs was higher in May than in April, and higher at 0-5 cm than at 5-15 cm soil layers. Erodium oxyrrhynchum, N. caspica and L. undulata showed different preference on N form over months. Erodium oxyrrhynchum and L. undulata changed their uptake preference from more N-15-Glycine in April to more N-15-NH4 in May. Although the N uptake rate of four desert herbs varied across different soil depths and months, all species absorbed more inorganic N compared with organic N. The higher preference for N-15-NO3 and N-15-NH4 over N-15-Gly possibly reflects adaptation to different N forms in temperate desert.
英文关键词	Competition ephemeral plant species nitrogen acquisition strategy stable isotope temperate desert ecosystem
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000506159700001
WOS关键词	BIOLOGICAL SOIL CRUSTS ; ORGANIC NITROGEN ; COMPLEMENTARITY ; COMPETITION ; MECHANISMS ; DOMINANCE ; GROWTH
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2020-01-08
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312424
作者单位	1.Xinjiang Normal Univ, Xinjiang Lab Species Conservat & Regulatory Biol, Key Lab Plant Stress Biol Arid Land, Coll Life Sci, Urumqi 830054, Peoples R China; 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China
推荐引用方式 GB/T 7714	Zhuang, W.,Li, J.,Yu, F.,et al. Seasonal nitrogen uptake strategies in a temperate desert ecosystem depends on N form and plant species[J]. 中国科学院新疆生态与地理研究所,2020,22(3):386-393.
APA	Zhuang, W.,Li, J.,Yu, F.,Dong, Z.,&Guo, H..(2020).Seasonal nitrogen uptake strategies in a temperate desert ecosystem depends on N form and plant species.PLANT BIOLOGY,22(3),386-393.
MLA	Zhuang, W.,et al."Seasonal nitrogen uptake strategies in a temperate desert ecosystem depends on N form and plant species".PLANT BIOLOGY 22.3(2020):386-393.