【摘要】 白鹿溪位于大巴山腹地、大宁河与堵河分水岭西侧,气候环境属秦巴山区暴雨中心东南边缘,流域内固体碎屑物质充分、储量巨大,历史上曾多次爆发泥石流。调查发现,白鹿溪泥石流沟由多条支沟组成,其中杨家湾是规模、危险性和破坏性最大的支沟。支沟是高频小规模泥石流沟,但是在一定条件下也可能爆发相当规模的大型泥石流。主沟是低频大规模泥石流沟,主沟大规模泥石流的爆发是支沟大规模泥石流诱发的;白鹿一带的泥石流堆积体是历次泥石流爆发形成的复合堆积体。区内人类工程经济活动日趋强烈,白鹿溪存在再次爆发泥石流的环境地质条件,可直接威胁到白鹿镇及下游大宁河沿岸居民的生命财产安全,应当引起足够的重视。更多还原

【Abstract】 There is geoenviroment for debris flow in Bailuxi river.Bailuxi is located in far inland of Dabashan where is the west diverge of Daning river and Du river,may become center of rainstorm.There is varied solid debris flow on bank slope and with more and more man engineering and civil construction.Bailuxi debris flow is very dangerous to Bailu villege and people down the Daninghe river,it should be under very curious intention.Baluxi debris flow consists of mainstream debris flow and tributaries debris flow with Yangjiawan is the biggest and destructive branch.Tributary debris flow is smaller and higher frequency one,but in some conditions,big debris flow can also be break up.Bailuxi is much bigger and lower frequency and is induced by tributary debris flow.Debris construction in Bailu is component pile of so many times debris flow.更多还原