Nitrogen-removal ability and niche of Coix lacryma-jobi and Reineckia   carnea in response to NO3-/NH4+ ratio

doi:10.1016/j.aquabot.2014.05.016

CORC > 北京大学 > 生命科学学院

	Nitrogen-removal ability and niche of Coix lacryma-jobi and Reineckia carnea in response to NO3-/NH4+ ratio
	Chen, Biqing ; Liu, Dong ; Han, Wenjuan ; Fan, Xing ; Cao, Haiqin ; Jiang, Qinsu ; Liu, Yu ; Chang, Jie ; Ge, Ying
刊名	aquatic botany
	2015
关键词	Biomass Constructed wetland Nitrogen accumulation Nitrogen concentration WASTE-WATER TREATMENT VULGARIS L. PLANTS CONSTRUCTED WETLANDS NITRATE/AMMONIUM RATIOS RESOURCE-ALLOCATION SUPPLIED NITROGEN HYDROPONIC SYSTEM UPTAKE KINETICS N UPTAKE GROWTH
DOI	10.1016/j.aquabot.2014.05.016
英文摘要	Wastewater comes from various sources with remarkably different nitrate (NO3-)/ammonium (NH4+) ratios. In order to choose coexisting plant species for treating wastewater with various compositions in constructed wetlands, it is important to know the performances of plant species under different NO3-/NH4+ ratios. In this study, we investigated the growth traits and nitrogen accumulation of Coix lacryma-jobi and Reineckia carnea under five NO3-/NH4+ ratios (100/0, 75/25, 50/50, 25/75 and 0/100) in a hydroponic system. Results showed that, the total biomass, aboveground biomass and aboveground nitrogen accumulation were the greatest under a NO3-/NH4+ ratio of 50/50 for C laciyma-jobi, but those were the highest under a ratio of 75/25 for R. carnea. Under the NH4+-only (0/100) treatment, C. lacryma-jobi exhibited ammonium toxicity with leaf nitrogen concentration (43 mg g(-1)) exceeding the maximum limit for plants. In contrast, R. camea showed less sensitivity to NO3-/NH4+ ratios as the coefficient of variance for biomass of R. cameo (17%) was less than half of that of C. lacryma-jobi (40%). The two plant species differed in nitrogen niche (niche overlap = 0.42). (C) 2014 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000347756100006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Plant Sciences; Marine & Freshwater Biology; SCI(E); 3; ARTICLE; geying@zju.edu.cn; 193-200; 120
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/206618]
专题	生命科学学院
推荐引用方式 GB/T 7714	Chen, Biqing,Liu, Dong,Han, Wenjuan,et al. Nitrogen-removal ability and niche of Coix lacryma-jobi and Reineckia carnea in response to NO3-/NH4+ ratio[J]. aquatic botany,2015.
APA	Chen, Biqing.,Liu, Dong.,Han, Wenjuan.,Fan, Xing.,Cao, Haiqin.,...&Ge, Ying.(2015).Nitrogen-removal ability and niche of Coix lacryma-jobi and Reineckia carnea in response to NO3-/NH4+ ratio.aquatic botany.
MLA	Chen, Biqing,et al."Nitrogen-removal ability and niche of Coix lacryma-jobi and Reineckia carnea in response to NO3-/NH4+ ratio".aquatic botany (2015).