干旱区生态环境知识资源中心(Arid): The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates

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DOI	10.3389/fpls.2019.00356
	The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates
	Cui, Xiaoqing 1,2; Yue, Ping 3,4; Wu, Wenchao 3,5; Gong, Yanming 3; Li, Kaihui 3; Misselbrook, Tom 6; Goulding, Keith 7; Liu, Xuejun 1
通讯作者	Liu, Xuejun
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2019
卷号	10
英文摘要	Nitrogen (N) partitioning between plant and soil pools is closely related to biomass accumulation and allocation, and is of great importance for quantifying the biomass dynamics and N fluxes of ecosystems, especially in low N-availability desert ecosystems. However, partitioning can differ among species even when growing in the same habitat. To better understand the variation of plant biomass allocation and N retention within ephemeral and annual species we studied the responses of Malcolmia Africana (an ephemeral) and Salsola affinis (an annual) to N addition, including plant growth, N retention by the plant and soil, and N lost to the environment using N-15 (double-labeled (NH4)-N-15 (NO3)-N-15 (5.16% abundance) added at 0, 0.8, 1.6, 3.2, and 6.4 g pot(-1), equivalent to 0, 15, 30, 60, and 120 kg N ha(-1)) in a pot experiment. Higher N addition (N120) inhibited plant growth and biomass accumulation of the ephemeral but not the annual. In addition, the aboveground: belowground partitioning of N (the R:S ratio) of the ephemeral decreased with increasing N addition, but that of the annual increased. The N input corresponding to maximum biomass and N-15 retention of the ephemeral was significantly less than that of the annual. The aboveground and belowground retention of N in the ephemeral were significantly less than those of the annual, except at low N rates. The average plant-soil system recovery of added N-15 by the ephemeral was 70%, significantly higher than that of the annual with an average of 50%. Although the whole plant-soil N-15 recovery of this desert ecosystem decreased with increasing N deposition, our results suggested that it may vary with species composition and community change under future climate and elevated N deposition.
英文关键词	desert plants annual ephemeral N-15 tracer biomass N-15 retention N deposition
类型	Article
语种	英语
国家	Peoples R China ; England
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000462478200001
WOS关键词	NET PRIMARY PRODUCTIVITY ; BIOMASS ALLOCATION ; SOIL MICROBES ; TERRESTRIAL ECOSYSTEMS ; GURBANTUNGGUT DESERT ; WATER ; RESPONSES ; FORMS ; EPHEMERALS ; STRATEGIES
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	中国科学院新疆生态与地理研究所 ; 中国农业大学 ; 北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215825
作者单位	1.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Key Lab Plant Soil Interact,Minist Educ, Beijing, Peoples R China; 2.Peking Univ, Sino France Inst Earth Syst Sci, Lab Earth Surface Proc, Coll Urban & Environm Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China; 4.Chinese Acad Sci, Northwest Inst Eco Environm & Resources, Urat Desert Grassland Res Stn, Lanzhou, Gansu, Peoples R China; 5.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China; 6.Rothamsted Res, Dept Sustainable Soils & Grassland Syst, North Wyke, Devon, England; 7.Rothamsted Res, Dept Sustainable Soils & Grassland Syst, Harpenden, Herts, England
推荐引用方式 GB/T 7714	Cui, Xiaoqing,Yue, Ping,Wu, Wenchao,et al. The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates[J]. 中国科学院新疆生态与地理研究所, 中国农业大学, 北京大学,2019,10.
APA	Cui, Xiaoqing.,Yue, Ping.,Wu, Wenchao.,Gong, Yanming.,Li, Kaihui.,...&Liu, Xuejun.(2019).The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates.FRONTIERS IN PLANT SCIENCE,10.
MLA	Cui, Xiaoqing,et al."The Growth and N Retention of Two Annual Desert Plants Varied Under Different Nitrogen Deposition Rates".FRONTIERS IN PLANT SCIENCE 10(2019).