A Kakutani-Rokhlin theorem for conditionally ergodic process in Riesz spaces

In [Y. Azouzi, M.A. Ben Amor, J.M. Homann, M. Masmoudi, B.A. Watson, { The Kac formula and Poincar\'e recurrence formula in Riesz spaces}, Proc. Amer. Math. Soc. 10(2023), 182-194.] we established the Kac formula and Poincar\'e recurrence theorem for conditional expectation preserving systems. Based on the structures built there to study recurrence times, we now give a formulation of the Kakutani-Rokhlin decomposition in terms of components of weak order units of Riesz spaces. In addition, we prove that every aperiodic conditional expectation preserving system can be approximated by a periodic one.