Leaf nitrogen acquisition of Leymus chinensis varies with leaf age and land use change in a semiarid grassland

Environmental and Experimental Botany（2020）

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摘要

•High NO3− and DON but low NH4+contribution to leaf N in younger than older leaves.•Contributions of NO3− and DON increase with restoring chronosequence of community.•Tradeoffs among NO3−, NH4+ and DON to leaf N acquisition occur under land use change.

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关键词

Leaf N acquisition,Leaf age,Contributions of soil ammonium, nitrate and dissolved organic N,Changes in land use

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