【摘要】 以平朔安太堡露天矿南排土场为研究对象,通过1993~2002年定位观测调查,确定了黄土区大型露天矿排土场水土流失的8个致灾因子:暴雨强度、地表物质组成、地形坡度、植被覆盖度、植被类型、工程水土保持措施、容重和非均匀沉降。与自然地貌相比,非均匀沉降和容重是影响排土场水土流失的特殊致灾因子。致灾因子的确定对认识排土场水土流失危害特征和机理,建立排土场水土流失评价指标体系,制定科学有效的治理措施提供了依据,对我国相似地域大型工程新造地的水土流失规律研究也有一定的借鉴作用。更多还原

【Abstract】 BasedonfixedpositionstudyinginwaterandsoillossoftheSouthDumpingSiteofAntaibaolarge opencastcoalmineinLoessAreafrom1993～2002,makesure8soilerosionindexesofdumpingsiteoflarge opencastcoal mine:30minrainfall intensity,surface material,landformand slope gradient,cover-deˉgree,topographic,engineering measure grade of conservation of water-soil,settlement unevenly and volumeweight,andthelasttwoindexesareespecial andimportanttosoilerosionofdumpingsite.It’simˉportanttothe studyofcharacteristics andmechanismofsoil erosionindumpingsite oflarge opencastcoal mine inLoess Area,which’s the foundation ofestablishingsoil erosion assessmentindexes systemand studyingeffectivemeasures.更多还原