A mountain stream runs through the Wolong Valley (where the reserve is); the stream is heavily armoured with boulders and smaller rounded stones.
 Stream waters are rather alkaline with pH levels in the range of 8.91. (
Hogan, 2007)  Water quality turbidity is quite high due to extensive sand and gravel mining in stream.

According to a 2001 research by Dr. Jianguo Liu of Michigan State University, the rate of destruction is higher after the reserve's creation than before its creation.
Using NASA's satellite images and records of population, Liu's research team concluded that due to tourism and the increase in local population, the reserve is facing an unprecedented threat. "
Tourists don't think they have an impact on panda habitat, but indirectly each visitor has some impact," Liu said. "
We don't see ourselves as a destructive force, but we are."
A mountain stream runs through the Wolong Valley (where the reserve is); the stream is heavily armoured with boulders and smaller rounded stones.  Stream waters are rather alkaline with pH levels in the range of 8.91. (Hogan, 2007)  Water quality turbidity is quite high due to extensive sand and gravel mining in stream.
According to a 2001 research by Dr. Jianguo Liu of Michigan State University, the rate of destruction is higher after the reserve's creation than before its creation. Using NASA's satellite images and records of population, Liu's research team concluded that due to tourism and the increase in local population, the reserve is facing an unprecedented threat. "Tourists don't think they have an impact on panda habitat, but indirectly each visitor has some impact," Liu said. "We don't see ourselves as a destructive force, but we are."
Wolong National Nature Reserve