A WG2 production!
Toward a common methodological framework
Soil and plant sampling
Here we describe the best practices for the sampling of plant and soil material to ensure preservation of the original water δ18O and δ2H, that is, practical guidance for minimizing sample evaporation and potential for fractionation.
Water extraction techniques
Here we present the different extraction methods, their advantages and disadvantages, and the type of plant and soil material from which water can be retrieved.
Isotopic analyses
Here we describe the measurement process and provide recommendations for standardization.