Soil
moisture measurements in an Australian tropical savanna show accumulating soil
water under three years of Free Air CO2 Enrichment (FACE). Most of this accumulation is occurring below
the rooting depth of grasses. Although
this increase in stored soil water is only a fraction (< 0.3% yr-1)
of annual rainfall, it is cumulative and may advantage deep-rooted woody
plants.
Author: C.J. Stokes, A.J. Ash, and J.A.M. Holtum (chris dot stokes at csiro dot au)
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