Arid
DOI10.1126/sciadv.aaq0942
Phosphorus, not nitrogen, limits plants and microbial primary producers following glacial retreat
Darcy, John L.1; Schmidt, Steven K.1; Knelman, Joey E.2; Cleveland, Cory C.3; Castle, Sarah C.4; Nemergut, Diana R.5
通讯作者Schmidt, Steven K.
来源期刊SCIENCE ADVANCES
ISSN2375-2548
出版年2018
卷号4期号:5
英文摘要

Current models of ecosystem development hold that low nitrogen availability limits the earliest stages of primary succession, but these models were developed from studies conducted in areas with temperate or wet climates. Global warming is now causing rapid glacial retreat even in inland areas with cold, dry climates, areas where ecological succession has not been adequately studied. We combine field and microcosm studies of both plant and microbial primary producers and show that phosphorus, not nitrogen, is the nutrient most limiting to the earliest stages of primary succession along glacial chronosequences in the Central Andes and central Alaska. We also show that phosphorus addition greatly accelerates the rate of succession for plants and for microbial phototrophs, even at the most extreme deglaciating site at over 5000 meters above sea level in the Andes of arid southern Peru. These results challenge the idea that nitrogen availability and a severe climate limit the rate of plant and microbial succession in cold-arid regions and will inform conservation efforts to mitigate the effects of global change on these fragile and threatened ecosystems.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000443174800010
WOS关键词QUELCCAYA ICE CAP ; ECOSYSTEM RETROGRESSION ; NUTRIENT LIMITATION ; SOIL DEVELOPMENT ; LANDSCAPE ; PERU ; AVAILABILITY ; MECHANISMS ; SUCCESSION ; DEPOSITION
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212882
作者单位1.Univ Colorado, Dept Ecol & Evolutionary Biol, Boulder, CO 80309 USA;
2.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA;
3.Univ Montana, Dept Ecosyst & Conservat Sci, Missoula, MT 59812 USA;
4.Univ Minnesota, Dept Plant Pathol, St Paul, MN 55455 USA;
5.Duke Univ, Dept Biol, Durham, NC 27708 USA
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GB/T 7714
Darcy, John L.,Schmidt, Steven K.,Knelman, Joey E.,et al. Phosphorus, not nitrogen, limits plants and microbial primary producers following glacial retreat[J],2018,4(5).
APA Darcy, John L.,Schmidt, Steven K.,Knelman, Joey E.,Cleveland, Cory C.,Castle, Sarah C.,&Nemergut, Diana R..(2018).Phosphorus, not nitrogen, limits plants and microbial primary producers following glacial retreat.SCIENCE ADVANCES,4(5).
MLA Darcy, John L.,et al."Phosphorus, not nitrogen, limits plants and microbial primary producers following glacial retreat".SCIENCE ADVANCES 4.5(2018).
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