Abstract：
Identifying vulnerable areas to erosion within the watershed and implementing best management practices (BMPs) are crucial steps in mitigating watershed degradation by minimizing sediment yields. The present study evaluates and identifies the BMPs in the Seybouse basin, northeastern Algeria, using the Soil and Water Assessment Tool (SWAT) model. After successful calibration and validation, the model demonstrated a satisfactory ability to simulate monthly discharge and sediment. Then, the calibrated model was employed to evaluate the efficacy of diverse management practices in sediment control. In the SWAT, three soil and conservation practices, as well as vegetated filter strips (VFSs), grade stabilization structures (GSSs), and terracing were evaluated. The average annual sediment yield in the Seybouse watershed is determined to be 14.43 t/ha year, constituting 71% of the total soil loss. VFS demonstrated a sediment reduction of 37.30%, GSS 20.40%, and terracing 42.30%. Among these strategies, terracing results in the greatest reduction, followed by VFS. The results of this study area can be useful for informed decision-making regarding optimal watershed management strategies.
摘要：
确定流域内易受侵蚀的地区并实施最佳管理实践（BMP）是通过最大程度地减少沉积物产量来减轻流域退化的关键步骤。本研究评估并确定了塞布兹盆地的BMP，阿尔及利亚东北部,使用土壤和水评估工具(SWAT)模型。成功校准和验证后，该模型显示出令人满意的模拟月流量和沉积物的能力。然后，校准模型用于评估沉积物控制中各种管理措施的有效性。在特警中,三种土壤和保护实践，以及植被过滤带(VFSs)，等级稳定结构（GSS），和梯田进行了评估。Seybouse流域年平均产沙量为14.43吨/公顷，占土壤流失总量的71%。VFS显示沉积物减少37.30%，GSS20.40%，和梯田42.30%。在这些战略中，梯田导致最大的减少，其次是VFS。该研究区域的结果可用于有关最佳流域管理策略的明智决策。
