干旱区生态环境知识资源中心(Arid): Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland

Arid

DOI	10.1093/jpe/rtab006
	Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland
	Diao, Huajie; Kardol, Paul; Dong, Kuanhu; Wang, Changhui
通讯作者	Dong, KH ; Wang, CH (corresponding author), Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Peoples R China. ; Wang, CH (corresponding author), Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China. ; Dong, KH ; Wang, CH (corresponding author), Shanxi Agr Univ, Youyu Loess Plateau Grassland Ecosyst Res Stn, Taigu 030801, Peoples R China.
来源期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
EISSN	1752-993X
出版年	2021
卷号	14 期号:3 页码:515-526
英文摘要	Aims Competition among plants in a community usually depends on their nitrogen (N)-use efficiency (NUE) and water-use efficiency (WUE) in arid and semi-arid regions. Artemisia frigida is an indicator species in heavily degraded grassland, however, how its NUE and WUE respond to N addition in different successional stages is still unclear, especially with mowing, a common management practice in semi-arid grasslands. Methods Based on a long-term controlled experiment with N addition and mowing in an abandoned cropland from 2006 to 2013, we investigated the NUE and WUE of A. frigida in two patches (i.e. grass and herb patches) in 2013 which represented two potential successional stages from herb to grass communities. The coverage of A. frigida was higher (about 50%) in the herb patch than in the grass patch (about 10%). Stable isotopic C (delta C-13) and N (delta N-15) as well as C and N pools were measured in plants and soils. NUE was calculated as leaf C/N, and leaf delta C-13 values were used as a proxy for WUE. Important Findings N addition did not affect WUE of A. frigida, but significantly decreased NUE by 42.9% and 26.6% in grass and herb patches, respectively. The response of NUE to N addition was related to altering utilization of different N sources (NH4+ vs. NO3-) by A. frigida according to the changed relationship between leaf delta N-15/soil delta N-15 and NUE. Mowing had no effect on NUE regardless of N addition, but significantly increased WUE by 2.3% for A. frigida without N addition in the grass patch. The addition of N reduced the positive effect of mowing on its WUE in grass patch. Our results suggested that decreased NUE and/or WUE of A. frigida under mowing and N addition could reduce its competition, and further accelerate restoration succession from the abandoned cropland to natural grassland in the semi-arid region.
英文关键词	mowing nitrogen addition nitrogen-use efficiency semi-arid grassland water-use efficiency
类型	Article
语种	英语
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000648966700013
WOS关键词	CARBON-ISOTOPE COMPOSITION ; N-15 NATURAL-ABUNDANCE ; PLANT NITROGEN ; SEMIARID GRASSLAND ; LEAF CARBON ; SOIL ; RESPONSES ; PATTERNS ; STOICHIOMETRY ; DELTA-N-15
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
来源机构	中国科学院植物研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350970
作者单位	[Diao, Huajie; Dong, Kuanhu; Wang, Changhui] Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Peoples R China; [Diao, Huajie; Wang, Changhui] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China; [Diao, Huajie; Dong, Kuanhu; Wang, Changhui] Shanxi Agr Univ, Youyu Loess Plateau Grassland Ecosyst Res Stn, Taigu 030801, Peoples R China; [Kardol, Paul] Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden
推荐引用方式 GB/T 7714	Diao, Huajie,Kardol, Paul,Dong, Kuanhu,et al. Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland[J]. 中国科学院植物研究所,2021,14(3):515-526.
APA	Diao, Huajie,Kardol, Paul,Dong, Kuanhu,&Wang, Changhui.(2021).Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland.JOURNAL OF PLANT ECOLOGY,14(3),515-526.
MLA	Diao, Huajie,et al."Effects of nitrogen addition and mowing on nitrogen- and water-use efficiency of Artemisia frigida in a grassland restored from an abandoned cropland".JOURNAL OF PLANT ECOLOGY 14.3(2021):515-526.