【摘要】 本文运用地貌学方法研究了燕山地区流域侵蚀产沙与流域形态和岩性的关系.结果表明,流域的侵蚀产沙与流域形态有着较好的关系,岩性对流域产沙起着明显的控制作用.利用流域产沙量与流域面积的关系,估算了燕山地区不同岩性流域的侵蚀模数和泥沙输移比.所得结果对于燕山地区侵蚀强度分级的研究,具有重要意义.更多还原

【Abstract】 A preliminary study on variation of erosion and sediment yield of drainage basins with their morphology and lithology has been carried out in Yan Shan Area by geombrphological approach. It has been shown that a close relation exists between erosion and sediment yield of small drainage basins and their morphometric characteristics and the lithology exerts a significant control on these relationships. An estimate of the amount of erosion sediment and delivery ratio from those small drainage basins has been made by establishing a relationship between sediment yield and drainage area and using a "reference drainage basin". The result obtained is of significance to study the soil erosion and division of different classes of erosion intensity in Yan Shan Area.更多还原