Plasticity in nitrogen form uptake and preference in response to long-term nitrogen fertilization
Song, MH; Zheng, LL; Suding, KN; Yin, TF; Yu, FH
2015
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume394Issue:01-02Pages:215-224
AbstractNiche complementarity arising from divergence in resource use is an important mechanism underlying species coexistence. We hypothesized fertilization with different N forms would generate plastic divergence among species with regard to their N form uptake and preference. In the eighth year of a long-term N fertilization experiment in an alpine meadow on the Tibetan plateau, we labeled 11 common plant species with ammonium-N-15 or nitate-N-15 in subplots without fertilization (control) or fertilized with 7.5 g N m(-2) yr(-1) in the form of ammonium, nitrate, or ammonium nitrate to trace N form uptake. Depending on species, fertilization with nitrate or ammonium nitrate had positive, negative or neutral effects on NO3-N uptake rate, although ammonium fertilization showed little impact. By contrast, fertilization with any N form had little impact on NH4-N uptake rate. Consequently, effects of nitrate fertilization and ammonium nitrate fertilization on relative N form preference diverged among the species and the functional groups (grasses, sedges, legumes and forbs). Alpine plant species can diverge in N form uptake and preference in response to long-term N fertilization, and such divergence may contribute to species coexistence after long-term fertilization.
SubtypeJournal
KeywordPlasticity N chemical forms Ammonium Nitrate Long-term N addition Alpine meadow
Subject AreaAgriculture ; Plant Sciences
WOS Subject ExtendedAgronomy ; Plant Sciences ; Soil Science
WOS KeywordNICHE COMPLEMENTARITY ; SPECIES-DIVERSITY ; PLANT-COMMUNITIES ; BIODIVERSITY ; COEXISTENCE ; DOMINANCE ; AMMONIUM ; KINETICS ; NITRATE ; EUROPE
Indexed BySCI
Language英语
WOS IDWOS:000360644200016
PublisherSPRINGER
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44368
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Song, MH,Zheng, LL,Suding, KN,et al. Plasticity in nitrogen form uptake and preference in response to long-term nitrogen fertilization[J]. PLANT AND SOIL,2015,394(01-02):215-224.
APA Song, MH,Zheng, LL,Suding, KN,Yin, TF,&Yu, FH.(2015).Plasticity in nitrogen form uptake and preference in response to long-term nitrogen fertilization.PLANT AND SOIL,394(01-02),215-224.
MLA Song, MH,et al."Plasticity in nitrogen form uptake and preference in response to long-term nitrogen fertilization".PLANT AND SOIL 394.01-02(2015):215-224.
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