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Applied and Environmental Soil Science
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Applied and Environmental Soil Science
/
2009
/
Article
/
Fig 5
/
Research Article
Litter Quality of
Populus
Species as Affected by Free-Air
Enrichment and N-Fertilization
Figure 5
CO
2
effect: Litter factor scores in F1F2 space. Solid line: samples with elevated [CO
2
]; dashed line: samples with ambient [CO
2
].