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植物生长的营养与化学计量学

Stoichiometry and Nutrition of Plant Growth in Natural Communities

Göran I. Ågren­
Department of Ecology, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden; email:

Annual Review of Ecology, Evolution, and Systematics
Vol. 39: 153-170 (Volume publication date December 2008)
(doi:10.1146/annurev.ecolsys.39.110707.173515)
First published online as a Review in Advance on August 26, 2008

Stoichiometric relations in plants, with emphasis on C:N:P, are reviewed. Both theoretically and empirically it is found for whole plants as well as for different tissues that nitrogen concentrations increase slower than phosphorus concentrations. A lack of data prevents the establishment of relations between nitrogen and other elements. Optimal element ratios where elements are simultaneously limiting growth can be established. There is a considerable variability around these optimal ratios in observed values. Conclusions about the ecological significance of stoichiometric relations based on these observations may therefore be biased. The significance of this variability remains to be established.

发表于: 2008-11-04 10:01 | 全文(查看: 314) | 评论(0) | 本文地址 | 收藏 
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