Karst mountainous agroforestry significantly enhances the formation of soil fractures. However, there are still some uncertainties regarding the effects of these soil fractures on water flow in carbonate-derived laterite. Therefore, a series of laboratory column infiltration and blue dye-tracing experiments were designed to evaluate the effects of fracture burial depth (15, 25, 35 cm), configuration (V: “V” shape; 1: “┃” shape) and inclusions (S: sand grain; R: rock fragment) on preferential flow processes in carbonate-derived laterite. The Green-Ampt model with effective hydraulic conductivity was applied to determine the hydraulic properties of soils containing fractures. The results show that the fracture configuration had a larger influence on the soil infiltration, while the responses of soil infiltration were not sensitive to the fracture burial depth. In the 1R15 treatment, the dye distribution was not uniform, as evidenced by two significantly different staining regions. All three parameters (dye coverage, uniform infiltration depth, and preferential flow fraction) to quantify the contribution of preferential flow showed that the preferential flow fraction was highest in the 1R15 treatment. Furthermore, Brilliant Blue was not a suitable quantitative tracer for water movement in carbonate-derived laterite that contains fractures. The effects of the fracture properties, including configuration and inclusions, on preferential flow cannot be neglected for karst mountainous agroforestry land management.

喀斯特山区农林业显着增强了土壤裂缝的形成。但是，关于这些土壤裂缝对碳酸盐衍生红土中水流的影响仍然存在一些不确定性。因此，设计了一系列实验室柱渗透和蓝色染料示踪实验，以评估骨折埋藏深度（15、25、35 cm），构型（V：“ V”形； 1：“┃”形）和碳酸盐衍生红土中优先流动过程中的夹杂物（S：沙粒； R：岩石碎屑）。应用具有有效水力传导率的Green-Ampt模型来确定包含裂缝的土壤的水力特性。结果表明，裂缝形态对土壤入渗的影响较大，土壤入渗的响应对裂缝埋深不敏感。在1R15处理中，染料分布不均匀，如两个明显不同的染色区域所证明。量化优先流量贡献的所有三个参数（染料覆盖率，均匀渗透深度和优先流量分数）表明，优先流量比率在1R15处理中最高。此外，在含有裂缝的碳酸盐衍生红土中，亮蓝对于水的运动不是合适的定量示踪剂。喀斯特山区农林综合管理不能忽略裂缝性质（包括构造和包裹体）对优先流动的影响。如两个明显不同的染色区域所证明的。量化优先流动贡献的所有三个参数（染料覆盖率，均匀渗透深度和优先流动分数）表明，优先流动分数在1R15处理中最高。此外，在含有裂缝的碳酸盐衍生红土中，亮蓝不适用于水分运动的定量示踪剂。喀斯特山区农林综合管理不能忽略裂缝性质（包括构造和包裹体）对优先流动的影响。如两个明显不同的染色区域所证明的。量化优先流量贡献的所有三个参数（染料覆盖率，均匀渗透深度和优先流量分数）表明，优先流量比率在1R15处理中最高。此外，在含有裂缝的碳酸盐衍生红土中，亮蓝不适用于水分运动的定量示踪剂。喀斯特山区农林综合管理不能忽略裂缝性质（包括构造和包裹体）对优先流动的影响。此外，在含有裂缝的碳酸盐衍生红土中，亮蓝对于水的运动不是合适的定量示踪剂。喀斯特山区农林综合管理不能忽略裂缝性质（包括构造和包裹体）对优先流动的影响。此外，在含有裂缝的碳酸盐衍生红土中，亮蓝不适用于水分运动的定量示踪剂。喀斯特山区农林综合管理不能忽略裂缝性质（包括构造和包裹体）对优先流动的影响。