1975年秋平武、松潘及川、甘交界地区出现大面积竹子开花、干枯,大熊猫缺食死亡。1976年8月松潘发生了7、2级地震。地震前后,当地群众和部分地震工作者认为:这次竹子开花干枯可能与地下水位变化有关。今年,卧龙自然保护区又出现竹子开花死亡的现象。 1975 autumn Pingwu, Songpan and Sichuan, Gan junction area of ​​large areas of bamboo flowering, dry, lack of food giant panda death. August 1976 Songpan magnitude 7, 2 earthquake. Before and after the earthquake, the local masses and some earthquake workers believed that the flowering and drying of bamboo might be related to the change of groundwater level. This year, Wolong Nature Reserve and the emergence of the phenomenon of bamboo flowering death.