Responses of Non-structural Carbohydrates and C:N:P Stoichiometry of Bothriochloa ischaemum to Nitrogen Addition on the Loess Plateau, China

doi:10.1007/s00344-017-9673-y

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	Responses of Non-structural Carbohydrates and C:N:P Stoichiometry of Bothriochloa ischaemum to Nitrogen Addition on the Loess Plateau, China
	Liu, Guo-Bin 1,4; Liu, GB (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.; Ai, Ze-Min1,4 ; Xue, Sha 1,4; Wang, Guo-Liang 1,4
刊名	JOURNAL OF PLANT GROWTH REGULATION
	2017
卷号	36 期号:3 页码:714-722
关键词	Plant Biomass Allocation Concentration Management Fertiliser
ISSN号	0721-7595
DOI	10.1007/s00344-017-9673-y
文献子类	Article
英文摘要	Bothriochloa ischaemum: (L.) Keng is an excellent native pasture and forage species on the Loess Plateau, China, which is low in soil nitrogen. Little is known about the effects of N addition on biomass, concentrations of non-structural carbohydrates (NSCs), and the carbon:nitrogen:phosphorus (C:N:P) stoichiometry of B. ischaemum in this area. We examined these responses in both plant tissues and soil to N additions of 0 (N0), 2.5 (N1), 5.0 (N2), and 10.0 (N3) g N m(-2) year(-1). Biomass was maximal with N additions between 2.5 and 5.0 g N m(-2) year(-1). The increase in biomass was more rapid above- than belowground. N addition had no significant effect on the C:N:P ratios in the plant tissues, except for the aboveground biomass N:P ratio which increased significantly. The response to N addition of aboveground biomass and the N:P ratio suggests that N is not likely the limiting nutrient for the growth of B. ischaemum when biomass N:P ratios are between 25.5 and 27.1. In contrast to the plant tissues, the soil C:N and C:P ratios, but not the N:P ratio, decreased significantly with increasing N addition, indicating that N addition may help improve soil quality in this area. Both above- and belowground NSC concentrations varied significantly with N addition, with maxima of 102.4 g kg(-1) in N1 and 49.6 g kg(-1) in N2. The application of N could be a management option for improving ecosystem biomass production and NSC concentrations in the grasses on the Loess Plateau.
学科主题	Plant Sciences
URL标识	查看原文
出版地	NEW YORK
会议日期	无
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000408691000016
资助机构	Natural Science Foundation of China [41371510, 41371508, 41471438]; Program for Shaanxi Province Science and Technology Research and Development of China [2011KJXX36] ; Natural Science Foundation of China [41371510, 41371508, 41471438]; Program for Shaanxi Province Science and Technology Research and Development of China [2011KJXX36] ; Natural Science Foundation of China [41371510, 41371508, 41471438]; Program for Shaanxi Province Science and Technology Research and Development of China [2011KJXX36] ; Natural Science Foundation of China [41371510, 41371508, 41471438]; Program for Shaanxi Province Science and Technology Research and Development of China [2011KJXX36]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7932]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Liu, GB (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100101, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Minist Water Resources, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guo-Bin,Liu, GB ,Ai, Ze-Min,et al. Responses of Non-structural Carbohydrates and C:N:P Stoichiometry of Bothriochloa ischaemum to Nitrogen Addition on the Loess Plateau, China[J]. JOURNAL OF PLANT GROWTH REGULATION,2017,36(3):714-722.
APA	Liu, Guo-Bin,Liu, GB ,Ai, Ze-Min,Xue, Sha,&Wang, Guo-Liang.(2017).Responses of Non-structural Carbohydrates and C:N:P Stoichiometry of Bothriochloa ischaemum to Nitrogen Addition on the Loess Plateau, China.JOURNAL OF PLANT GROWTH REGULATION,36(3),714-722.
MLA	Liu, Guo-Bin,et al."Responses of Non-structural Carbohydrates and C:N:P Stoichiometry of Bothriochloa ischaemum to Nitrogen Addition on the Loess Plateau, China".JOURNAL OF PLANT GROWTH REGULATION 36.3(2017):714-722.