Alluvial fans are frequently associated with desert pavements and V horizons. In particular, the Talacasto River alluvial fan presents a spatial configuration that gives rise to different levels of deposition. The present work has the following objectives: 1: determine whether geomorphological and superficial characteristics of the landforms influence the presence, development and spatial distribution of soils and V horizons. Also, if vegetation patterns could be used as indicators of the V horizon, and 2: analyze the relationship between geomorphometric characteristics, soil properties and vegetation patterns in the different geomorphological units. Soil and vegetation studies were performed along the different geomorphological units (9) for the alluvial fan. Soil morphology and physical properties were analyzed, emphasizing the presence of the genetic V horizon. In addition, the surface properties and the attributes of plant communities were quantified. The relationship between soil, geomorphometric and vegetation variables was evaluated through Redundancy Analysis (RDA), Spearman's Correlation Analysis and Generalized Linear Models (GLM). The results show that the V horizon is heterogeneously distributed over the alluvial fan. In the older alluvial levels, the V horizon is thicker and finer-textured compared to modern levels. In addition, the V horizon of geomorphic surfaces is negatively correlated with slope and positively correlated with wind effect. V Horizon thickness is positively correlated with sediment coverage, however, it does not show correlation with the vegetation and rock coverage, while the vegetation and rock coverage present a strong negative correlation. The vegetation patterns show significant differences between geomorphological units analyzed. Species richness and diversity are positively correlated with sediment coverage, but are not correlated with V horizon thickness, therefore, species richness and diversity are not good predictors. Our main conclusion indicates that the presence of the V horizon depends on the geomorphometric properties. In contrast, the thickness of the V horizon is independent of vegetation and rock coverage. Two plant species could be used as predictors of the presence and thickness of the V horizon, L. cuneifolia and B. retama.

冲积扇经常与沙漠路面和 V 形地平线有关。特别是，塔拉卡斯托河冲积扇呈现出不同程度的沉积空间配置。目前的工作有以下目标： 1：确定地貌的地貌和表面特征是否影响土壤和V层的存在、发展和空间分布。另外，如果植被格局可以作为V水平的指标，以及2：分析不同地貌单元的地貌特征、土壤性质和植被格局之间的关系。沿不同地貌单元 (9) 对冲积扇进行了土壤和植被研究。分析了土壤形态和物理性质，强调遗传 V 视界的存在。此外，还对植物群落的表面性质和属性进行了量化。通过冗余分析 (RDA)、斯皮尔曼相关分析和广义线性模型 (GLM) 评估土壤、地貌和植被变量之间的关系。结果表明，V层在冲积扇上分布不均匀。在较旧的冲积层中，与现代层相比，V 层更厚、纹理更精细。此外，地貌面的V层位与坡度呈负相关，与风效应呈正相关。V 地平线厚度与沉积物覆盖度呈正相关，但与植被和岩石覆盖度无关，而植被与岩石覆盖度呈强负相关。植被模式显示出分析的地貌单元之间的显着差异。物种丰富度和多样性与沉积物覆盖度呈正相关，但与 V 层厚度无关，因此，物种丰富度和多样性不是很好的预测指标。我们的主要结论表明，V 层的存在取决于地貌特征。相比之下，V 层的厚度与植被和岩石覆盖率无关。两种植物物种可用作 V 地平线存在和厚度的预测因子，物种丰富度和多样性与沉积物覆盖度呈正相关，但与 V 层厚度无关，因此，物种丰富度和多样性不是很好的预测指标。我们的主要结论表明，V 层的存在取决于地貌特征。相比之下，V 层的厚度与植被和岩石覆盖率无关。两种植物物种可用作 V 地平线存在和厚度的预测因子，物种丰富度和多样性与沉积物覆盖度呈正相关，但与 V 层厚度无关，因此，物种丰富度和多样性不是很好的预测指标。我们的主要结论表明，V 层的存在取决于地貌特征。相比之下，V 层的厚度与植被和岩石覆盖率无关。两种植物物种可用作 V 地平线存在和厚度的预测因子，L. cuneifolia和B. retama。