气候变化领域集成服务门户(CCPortal): Abiotic gas formation drives nitrogen loss from a desert ecosystem

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DOI	10.1126/science.1178984
	Abiotic gas formation drives nitrogen loss from a desert ecosystem
	McCalley C.K.; Sparks J.P.
发表日期	2009
ISSN	0036-8075
起始页码	837
结束页码	840
卷号	326 期号:5954
英文摘要	In arid environments such as deserts, nitrogen is often the most limiting nutrient for biological activity. The majority of the ecosystem nitrogen flux is typically thought to be driven by production and loss of reactive nitrogen species by microorganisms in the soil. We found that high soil-surface temperatures (greater than 50°C), driven by solar radiation, are the primary cause of nitrogen loss in Mojave Desert soils. This abiotic pathway not only enables the balancing of arid ecosystem nitrogen budgets, but also changes our view of global nitrogen cycling and the predicted impact of climate change and increased temperatures on nitrogen bioavailability.
英文关键词	nitrogen; bioactivity; bioavailability; climate change; desert; nitrogen cycle; nutrient limitation; nutrient loss; soil ecosystem; soil microorganism; soil surface; solar radiation; surface temperature; abiotic stress; article; bioavailability; biological activity; desert; ecosystem; gas; microorganism; nutrient limitation; priority journal; soil; soil chemistry; soil microflora; solar radiation; temperature; water loss; Ammonia; Desert Climate; Ecosystem; Gases; Hot Temperature; Larrea; Nitrogen Oxides; Soil; Southwestern United States; Sunlight; Mojave Desert; North America; United States
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244692
作者单位	Department of Ecology and Evolutionary Biology, Corson Hall Room E149, Cornell University, Ithaca, NY 14853, United States
推荐引用方式 GB/T 7714	McCalley C.K.,Sparks J.P.. Abiotic gas formation drives nitrogen loss from a desert ecosystem[J],2009,326(5954).
APA	McCalley C.K.,&Sparks J.P..(2009).Abiotic gas formation drives nitrogen loss from a desert ecosystem.Science,326(5954).
MLA	McCalley C.K.,et al."Abiotic gas formation drives nitrogen loss from a desert ecosystem".Science 326.5954(2009).