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黑土侵蚀过程受到地质、地貌、气候、土壤、植被等自然因子的综合影响,人类活动对生态平衡的破坏而加速了土壤侵蚀过程,通过对海伦前进小流域坡积发育历史、地层序列的有机碳、腐殖质组分变化的研究,分析海伦前进小流域的土壤侵蚀发生规律。结果表明:剖面1在85 cm以上有明显的坡积后的沉积过程;剖面2坡积层次出现在27 cm以上;剖面3土壤侵蚀过程中第1次的坡积沉积过程发生在85~120 cm处,现代侵蚀发生在土壤表层。
The process of black soil erosion is affected by the combination of natural factors such as geology, geomorphology, climate, soil and vegetation, and the destruction of ecological balance by human activities, which accelerates the process of soil erosion. By analyzing the history of slope sedimentation, the sequence of organic carbon , Humus composition changes, analysis of Helen advance small watershed soil erosion law. The results show that there is obvious slope deposition above 85 cm in section 1, the slope of section 2 is above 27 cm, and the first slope deposition in section 3 is between 85 cm and 120 cm At the moment, modern erosion occurs on the soil surface.