I do not have enough information to answer how many bases around Chengdu can reach the Xiahou community. The provided context discusses the Chengdu Research Base of Giant Panda Breeding, transportation to nearby cities like Chongqing and Leshan, and the "15-minute community life circles" in Chengdu, specifically mentioning the Xishulu community. However, there is no mention of a "Xiahou community" or specific bases associated with it in the source material. To help me answer better, please clarify the location of the Xiahou community or the specific types of bases you are referring to.