气候变化领域集成服务门户(CCPortal): Influence of nitrogen loading and species composition on the carbon balance of grasslands

CCPortal

DOI	10.1126/science.274.5293.1720
	Influence of nitrogen loading and species composition on the carbon balance of grasslands
	Wedin D.A.; Tilman D.
发表日期	1996
ISSN	0036-8075
起始页码	1720
结束页码	1723
卷号	274 期号:5293
英文摘要	In a 12-year experimental study of nitrogen (N) deposition on Minnesota grasslands, plots dominated by native warm-season grasses shifted to low- diversity mixtures dominated by cool-season grasses at all but the lowest N addition rates. This shift was associated with decreased biomass carbon (C):N ratios, increased N mineralization, increased soil nitrate, high N losses, and low C storage. In addition, plots originally dominated by normative cool- season grasses retained little added N and stored little C, even at low N input rates. Thus, grasslands with high N retention and C storage rates were the most vulnerable to species losses and major shifts in C and N cycling.
英文关键词	carbon; nitrate; nitrogen; article; biomass; controlled study; grass; mineralization; nitrogen metabolism; priority journal; seasonal variation; soil pollution; species differentiation; united states; Poaceae
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/245991
作者单位	Department of Botany, University of Toronto, Toronto, Ont. M5S 3B2, Canada; Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, United States
推荐引用方式 GB/T 7714	Wedin D.A.,Tilman D.. Influence of nitrogen loading and species composition on the carbon balance of grasslands[J],1996,274(5293).
APA	Wedin D.A.,&Tilman D..(1996).Influence of nitrogen loading and species composition on the carbon balance of grasslands.Science,274(5293).
MLA	Wedin D.A.,et al."Influence of nitrogen loading and species composition on the carbon balance of grasslands".Science 274.5293(1996).