This study reconstructs the evolution of foraminiferal assemblages and the environmental variables (type of substrate, content in calcium carbonate and content in organic matter) in the Valencia lagoon (western Mediterranean) in response to changes in the late Holocene. In this area of low tidal range, several multiproxy analyses were carried out to determine which environmental variables influence the distribution of the fossil assemblage, and its association with global, regional or local climatic phenomena. The statistical results show that in environments with higher exposure to marine conditions, the calcium carbonate content is the dominant factor, whereas in more restricted environments the type of substrate (grain size) is determinant. The micropaleontological content reveals the evolution from a saline paleoenvironment with a clear marine influence towards the hyposaline or freshwater conditions, recorded at the top.

Three phases were identified in the evolution of this area from 2800 cal yr BP to the present. A brackish lagoon with marine connection at the base, followed by a deposit of brackish lagoon (1232 ± 74 cal yr BP − 791 ± 104 cal yr BP), culminating in a brackish marsh (791 ± 104 cal yr BP to present), interpreted as the definitive closure process of the lagoon, favored by the coastal progradation processes related with an extraordinary input of sediments. These findings reflect the climatic variability of the Medieval Climate Optimum (MCO) (1.05 and 0.65 kcal BP) and the migration of the river Turia mouth, which favored the coastal progradation processes. The flood events registered at this phase, may have coincided with changes in the landscape and greater anthropic influence at the end of the LIA, 150 cal yr BP. Coastal processes are mainly responsible for the evolution of this area during phase I, while the influence of fluvial processes is significant towards the top, especially in phase III.

这项研究重建了瓦伦西亚泻湖（地中海西部）中有孔虫组合的演化和环境变量（底物类型，碳酸钙含量和有机物含量），以响应全新世晚期的变化。在这一低潮范围地区，进行了多次多重代理分析，以确定哪些环境变量影响了化石组合的分布及其与全球，区域或局部气候现象的关系。统计结果表明，在高暴露于海洋条件的环境中，碳酸钙含量是主要因素，而在更受限的环境中，基质类型（粒度）是决定性因素。

从2800 cal yr BP到目前，该区域的演化过程分为三个阶段。咸淡水泻湖的底部与海洋相连，随后沉积有咸淡水泻湖（1232±74 yr BP-791±104 cal yr BP），最终形成咸淡沼泽（至今为791±104 cal BP），作为泻湖的最终封闭过程，受到与大量沉积物相关的沿海扩张过程的青睐。这些发现反映了中世纪最佳气候（MCO）（1.05和0.65 kcal BP）的气候变化以及Turia河口的迁移，这有利于沿海地区的退化。在这一阶段记录的洪水事件，可能与景观变化以及在LIA 150年代末BP结束时更大的人类影响相吻合。