太白山土壤δ2Hwax和MBT′5ME数据集（2020年）

本研究中，科研人员通过对半干旱区秦岭主峰太白山沿不同海拔梯度进行多次表层土壤取样调查，发现叶蜡δ2Hwax值和brGDGTs派生的MBT`5ME随高度变化显著，其中δ2Hwax-MBT`5ME指标耦合可以有效提高与高度指示精度：R2 = 0.96 相比R2 = 0.82和0.90；RMSE = 230米相比RMSE = 275米和360米。接着，研究人员将该方法应用于青藏高原进行验证，也发现δ2Hwax-MBT`5ME指标可以有效提高精度。因此，δ2Hwax-MBT`5ME指标可以有效地作为干旱半干旱区古高度重建的指标。

In this study, researchers conducted multiple surface soil sampling surveys along different elevation gradients on Taibai Mountain, the main peak of the Qinling Mountains in the semi-arid region. It was found that leaf wax δ²Hwax values and MBT`5ME derived from brGDGTs vary significantly with altitude. Specifically, the coupled δ²Hwax-MBT`5ME index effectively improves the altitude prediction accuracy: R² = 0.96, compared with R² = 0.82 and 0.90; RMSE = 230 m, compared with RMSE = 275 m and 360 m. Subsequently, the researchers applied this method to the Qinghai-Tibet Plateau for validation, and also found that the δ²Hwax-MBT`5ME index can effectively enhance the prediction accuracy. Therefore, the δ²Hwax-MBT`5ME index can effectively serve as a proxy for paleoaltimetry reconstruction in arid and semi-arid regions.

搜集汇总

背景与挑战

背景概述

该数据集包含2020年太白山地区土壤的δ2Hwax和MBT′5ME数据，通过分析不同海拔梯度的土壤样本，发现δ2Hwax和MBT′5ME指标耦合可显著提高高度指示精度，适用于干旱半干旱区古高度重建研究。