四川省巴中县花丛区境内的白岩河,溪河总长133.5公里,流域幅员面积334170亩。河流两岸地形破碎,完整山脉甚少,地形多成台状,台间由悬崖,陡坡组成,坡度20—50度之间,由于雨水的浸蚀,沟深谷窄,切割较大。流域内有218个山头,属于典型的丘陵地带。 Bajianhe, Baizhong County, Sichuan Province The total length of the Baiyanhe River and the Xihe River is 133.5 kilometers and the drainage area covers an area of ​​334170 mu. The terrain of the two rivers is fragmented, and there are few intact mountains. The terrain is mostly shaped like a platform. The terrace is composed of cliffs and steep slopes with a gradient of 20-50 degrees. Due to the rainwater erosion, the ditch is narrow and the cutting is relatively large. Basin has 218 hills, are typical of the hilly areas.