塔克拉玛干沙漠表土粒度数据和TOC含量数据

本数据集包括塔克拉玛干沙漠121个表土粒度数据和116个TOC含量数据。本数据集可用于分析现代地表过程。研究结果表明，在两个沉积剖面中，粘土-粉砂层的理化性质与现代绿洲沉积物（尤其是冲积地）相似，而层间风沙的性质与现代沙漠沉积物相似。观测到的地表样品粒度、土壤养分和地球化学比值的共变表明，我们的方法可以用来确定过去绿洲-沙漠演化的趋势。绿洲的形成在很大程度上取决于河流-湿地环境的发展，而绿洲的退化与强烈的风成活动密切相关。这些发现为绿洲-沙漠沉积物分析和重建绿洲-沙漠景观演变提供了新的思路。This dataset comprises 121 topsoil grain size measurements and 116 total organic carbon (TOC) concentration measurements collected from the Taklimakan Desert. This dataset is applicable for the analysis of modern surface processes. Research findings demonstrate that the physicochemical properties of clay-silt layers in two sediment profiles are analogous to those of modern oasis sediments, particularly alluvial deposits, whereas the characteristics of interlayer aeolian sand are similar to those of modern desert sediments. The observed covariation of grain size, soil nutrients and geochemical ratios in surface samples demonstrates that our proposed method can be employed to identify trends in past oasis-desert evolution. The formation of oases largely relies on the development of fluvial and wetland environments, while the degradation of oases is strongly correlated with intense aeolian activities. These findings offer novel insights for oasis-desert sediment analysis and the reconstruction of oasis-desert landscape evolution.

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背景概述

该数据集包含塔克拉玛干沙漠121个表土粒度数据和116个TOC含量数据，用于研究现代地表过程和绿洲-沙漠演化。数据支持绿洲形成与河流-湿地环境相关、退化与风成活动相关的发现。