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	Rapid plant species loss at high rates and at low frequency of N addition in temperate steppe
	Yu Q.
	2014
关键词	acidification ammonium toxicity biodiversity Inner Mongolia N addition frequency peak effect pulse effect temperate grassland inner-mongolia grasslands nitrogen deposition terrestrial ecosystems nutrient enrichment biodiversity loss phosphorus inputs soil eutrophication diversity
英文摘要	Humans are both intentionally (fertilization) and unintentionally (atmospheric nutrient deposition) adding nutrients worldwide. Increasing availability of biologically reactive nitrogen (N) is one of the major drivers of plant species loss. It remains unclear, however, whether plant diversity will be equally reduced by inputs of reactive N coming from either small and frequent N deposition events or large and infrequent N fertilization events. By independently manipulating the rate and frequency of reactive N inputs, our study teases apart these potentially contrasting effects. Plant species richness decreased more quickly at high rates and at low frequency of N addition, which suggests that previous fertilization studies have likely over-estimated the effects of N deposition on plant species loss. N-induced species loss resulted from both acidification and ammonium toxicity. Further study of small and frequent N additions will be necessary to project future rates of plant species loss under increasing aerial N deposition.
出处	Global Change Biology
卷	20
期	11
页	3520-3529
收录类别	SCI
语种	英语
ISSN号	1354-1013
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29393]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yu Q.. Rapid plant species loss at high rates and at low frequency of N addition in temperate steppe. 2014.

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