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We investigate the foliation defined by the kernel of an exact presymplecticform $d\alpha$ of rank 2n on a (2n + r)-dimensional closed manifold M. For r =2, we prove that the foliation has at least two leaves which are homeomorphicto a 2-dimensional torus, if M admits a locally free $T^2$-action whichpreserves $d\alpha$ and satisfies that the function $\alpha(Z_2)$ is constant,where $Z_1$, $Z_2$ are the infinitesimal generators of the $T^2$-action. Wealso give its generalization for r $\geq$ 1.

Compact leaves of the foliation defined by the kernel of a $T^2$-invariant presymplectic form