  We use recollement and HRS-tilt to describe bounded t-structures on the
bounded derived category $\mathcal{D}^b(\mathbb{X})$ of coherent sheaves over a
weighted projective line $\mathbb{X}$ of virtual genus $\leq 1$. We will see
from our description that the combinatorics in classification of bounded
t-structures on $\mathcal{D}^b(\mathbb{X})$ can be reduced to that in
classification of bounded t-structures on bounded derived categories of finite
dimensional right modules over representation-finite finite dimensional
hereditary algebras.
