  One has believed that low energy effective theories of the Higgs branch of
gauged linear sigma models correspond to supersymmetric nonlinear sigma models,
which have been already investigated by many works. In this paper we discuss a
explicit derivation of supersymmetric nonlinear sigma models from gauged linear
sigma models. In this process we construct Kahler potentials of some
two-dimensional toric varieties explicitly. Thus we will be able to study some
algebraic varieties in the language of differential geometry.
