  In this article we show that for every finite area hyperbolic surface $X$ of
type $(g,n)$ and any harmonic Beltrami differential $\mu$ on $X$, then the
magnitude of $\mu$ at any point of small injectivity radius is uniform bounded
from above by the ratio of the Weil-Petersson norm of $\mu$ over the square
root of the systole of $X$ up to a uniform positive constant multiplication.
  We apply the uniform bound above to show that the Weil-Petersson Ricci
curvature, restricted at any hyperbolic surface of short systole in the moduli
space, is uniformly bounded from below by the negative reciprocal of the
systole up to a uniform positive constant multiplication. As an application, we
show that the average total Weil-Petersson scalar curvature over the moduli
space is uniformly comparable to $-g$ as the genus $g$ goes to infinity.
