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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
Ai, Ze-Min1,2; Xue, Sha1,2; Wang, Guo-Liang1,2; Liu, Guo-Bin1,2; 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.
SubtypeArticle
2017
Source PublicationJOURNAL OF PLANT GROWTH REGULATION
ISSN0721-7595
description.correspondentemailgbliu@ms.iswc.ac.cn
Volume36Issue:3Pages:714-722
AbstractBothriochloa 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.
KeywordPlant Biomass Allocation Concentration Management Fertiliser
Subject AreaPlant Sciences
DOI10.1007/s00344-017-9673-y
URL查看原文
Indexed BySCI
Publication PlaceNEW YORK
Language英语
WOS IDWOS:000408691000016
PublisherSPRINGER
Funding OrganizationNatural 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]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7932
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorLiu, 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.
Affiliation1.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.Minist Water Resources, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100101, Peoples R China
4.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Ai, Ze-Min,Xue, Sha,Wang, Guo-Liang,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 Ai, Ze-Min,Xue, Sha,Wang, Guo-Liang,Liu, Guo-Bin,&Liu, GB .(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 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".JOURNAL OF PLANT GROWTH REGULATION 36.3(2017):714-722.
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