Data: H and O isotope signatures of soil and xylem samples, cacao agroforest, Indonesia. SchwendenmannLuitgard 2019 This data set contains soil and xylem water delta<sup>18</sup>O and delta<sup>2</sup>H values of soil and xylem samples collected from cacao and shade trees (gliricidia) in a cacao agroforest, Marena, Indonesia, from Jan 2007 to April 2008.