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Figure 3


Fig. 3. Seasonal means and standard errors of the means of soil profile CO2 {delta}13C values in oak woodland and vineyard soils. During the winter and spring some sites were so waterlogged as to prevent sample gas extraction. As a result, winter and spring points are composed of n = 3–6 data points while summer and fall points are composed of n = 12 data points.





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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education
Vadose Zone Journal
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome